WO1997009275A1 - Magnetic filter for use in a fluid lubrication system - Google Patents

Magnetic filter for use in a fluid lubrication system Download PDF

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Publication number
WO1997009275A1
WO1997009275A1 PCT/US1996/014527 US9614527W WO9709275A1 WO 1997009275 A1 WO1997009275 A1 WO 1997009275A1 US 9614527 W US9614527 W US 9614527W WO 9709275 A1 WO9709275 A1 WO 9709275A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic filter
filter
present
lubrication system
Prior art date
Application number
PCT/US1996/014527
Other languages
French (fr)
Inventor
Carlton R. Williamson
Original Assignee
Williamson Carlton R
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Williamson Carlton R filed Critical Williamson Carlton R
Priority to AU71078/96A priority Critical patent/AU7107896A/en
Publication of WO1997009275A1 publication Critical patent/WO1997009275A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt

Definitions

  • the present invention relates to devices for filtering particulate matter from the fluid lubricant of an engine or transmission assembly, and more particularly concerns the use of magnetic forces in hindering the movement of particulate matter which is magnetically attractive through the lubrication systems of such engine or transmission assemblies.
  • the magnetic filter of the present invention includes a permanent magnetic sheet, having oppositely disposed upper and Iower surfaces, for placement along an interior wall of a fluid bearing component of a fluid lubrication system.
  • the magnetic sheet may further comprise means for frictionally hindering the movement of particles across one of the upper or Iower surfaces.
  • An even further object of the present invention is to provide a new and improved a 35 magnetic filter which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby making such a magnetic filter economically available to the buying public.
  • FIG. 1 is a side view of a preferred embodiment of a magnetic filter according to the present invention
  • FIG. 2 is a top view of the embodiment of a magnetic filter of FIG. 1 ;
  • FIG. 3 is a top view of another embodiment of a magnetic filter according to the present invention.
  • FIG. 4 is a reduced top view ofthe embodiment of a magnetic filter of FIG. 3, placed in operable position inside a Iiquid lubricant collection pan;
  • FIG. 5 is a reduced side section view of the embodiment of a magnetic filter of FIG. 3, along line 5 - 5 of FIG. 4;
  • FIG. 6 is a side section view of another embodiment of a magnetic filter according to the present invention.
  • FIG. 7 is a top view of still another embodiment of a magnetic filter according to the present invention.
  • FIG. 8 is a left side view of the embodiment of FIG. 7.
  • the present invention comprises an improved magnetic filter for use with a wide variety of lubrication systems, such as those which are typically used with combustion engines and transmission systems.
  • the magnetic filter of the present invention indudes a permanent magnetic sheet, having oppositely disposed upper and Iower surfaces, for placement along an interior wall of a fluid lubrication system, such as in the bottom of a lubricant collection pan.
  • the magnetic sheet may further comprise means for frictionally hindering the movement of particles across one of the upper or Iower surfaces of said sheet.
  • FIG.'s 1 and 2 illustrate an embodiment of a magnetic filter 10 according to the present invention, for use in a fluid lubrication system.
  • the filter 10 is made in the form of a permanent magnetic sheet 11 , having oppositely disposed upper and Iower surfaces 13 and 15, respectively, for plaeement along an interior wall of a fluid-bearing component of a lubrication system, such as along the interior bottom surface of a lubricant collection pan 17 (FIG.'s 3 and 4) which is typically found affixed to the lower side of most combustion engines or automotive transmission systems.
  • the filter 10 is placed inside pan 17, such that magnetically attractable metal particles flowing through the pan 17 in a Iiquid lubricant may be attracted thereto, and thereby pulled out of the lubricant. It is preferred that the shape, length and width of the filter 10 be sufficient for covering a significant portion ofthe interior walled surface along which it is placed. For example, when in operable position in the lubricant collection pan 17, it is preferred that the filter 10 is substantially flat against the bottom 17B ofthe lubricant collection pan 17 and covering most ofthe interior surface of said bottom. Those skilled in the art will recognize, however, that the magnetic filter 10 may be formed in a wide variety of shapes and sizes for fitting in a similar fashion within a wide variety of fluid bearing components of a variety of lubrication systems.
  • FIG.'s 3 through 5 illustrate another embodiment of a magnetic filter 110 according to the instant invention, whieh is substantially similar to the magnetic filter 10, except that it includes means for frictionally hindering the movement of particles across at least one of its upper or Iower surfaces, 113 and 115, respectively.
  • such means comprise a plurality of apertures 119 formed through magnetic sheet 111 , between the upper and Iower surfaces 113 and 115, respectively.
  • the apertures 119 are substantially square, for providing a vertical side surface 120 between the surfaces 113 and 115. which surface 120 is substantially perpendicular to both the planes of the upper and Iower surfaces, 113 and 115, respectively.
  • Such an orientation of said vertical side surface 120 is antithetical to the flow of particles across the surfaces 113 or 115 in virtually any direction.
  • Another purpose of the plurality of apertures 119 is to provide a plurality of openings in the magnetic sheet mate ⁇ al 111 through which flux between opposite poles on the upper and iower surfaces, 113 and 115, respectively, of the magnetic sheet ⁇ 5 material 111 may be oriented. Such orientation of said flux into magnetic fields located around the periphery of each aperture 119, when combined with the mechanical friction
  • Said filter 210 is formed of a magnetic sheet 211 , which is substantially similar to the sheet 111 of the filter 110, except that it is semi-wedged in shape, being thicker at a first end 217 than at an opposite end 219. This causes each of a plurality
  • FIG. 20 is illustrated in FIG.'s 7 and 8, in which is provided a magnetic filter 310 which is substantially similar to the filter 10, being formed of a magnetic sheet 311 having oppositely disposed upper and Iower surfaces 313 and 315, respectively.
  • the frictional movement hindering means of the magnetic filter 310 does not comprise a plurality of apertures formed through the magnetic sheet 311. Rather,
  • the frictional movement hindering means of the magnetic filter 310 comprises a plurality of ridges 323 formed in at least one of the upper or lower surfaces 313 or 315 of the magnetic sheet 311. It is preferred that said ridges 323 are formed in a plurality of parallel a ⁇ ays, such that the flow of particles across the surface 313 or 315 is frictionally opposed by said ridges 323. Such ridges 323 may be formed via a wide variety of means which are known.
  • each of the magnetic filters of then instant invention is made of a rubber bonded magnetic material.
  • a rubber bonded magnetic material such as strontium ferrite composite materials formed in an acrylic nitrile, polyisoprene or equivalent general rubber base.
  • strontium ferrite composite materials formed in an acrylic nitrile, polyisoprene or equivalent general rubber base.
  • Such a material is marketed by THE ELECTRODYNE COMPANY, of Batavia, Ohio, under the tradename of
  • the magnetic sheets 11, 111 , 211 and 311 of the instant invention are of the multiple-pole-on-each-surface variety, those skilled in the art will recognize that conventional single poied surfaces will also work in accordance with the instant invention.
  • the general thickness of the magnetic filters according to the instant invention be in the range of between .030 inches and .375 inches, for ease in die-cutting and packaging; although those skilled in the art will recognize that other thicknesses of magnetic street material may be used in accordance with the present invention. It has been found that magnetically attractable particles as small as 1 micron in diameter can be readily extracted from lubricating fluids in an engine by a filter made in aeeordance with the instant invention.

Abstract

An improved magnetic filter for use with a wide variety of lubrication systems, such as those which are typically used with combustion engines and transmission systems. The magnetic filter of the present invention includes a permanent magnetic sheet, having oppositely disposed upper and lower surfaces, for placement along an interior wall of a fluid lubrication system, such as in the bottom of a lubricant collection pan. The magnetic sheet may further comprise means for frictionally hindering the movement of particles across one of the upper or lower surfaces of said sheet.

Description

MAGNETIC FILTER FOR USE IN Λ FLUID LUBRICATION SYSTEM
RELATED DISCLOSURE
This application is a continuation-in-part of an application which was originally filed in the United States Patent and Trademark Office on 08 September 1995 (06.09.95) and entitled Magnetic Futer Adapter For Use In A Fluid kubrieation System, and having serial number 60/003,423.
BACKGROUND OF THE INVENTION
The present invention relates to devices for filtering particulate matter from the fluid lubricant of an engine or transmission assembly, and more particularly concerns the use of magnetic forces in hindering the movement of particulate matter which is magnetically attractive through the lubrication systems of such engine or transmission assemblies.
Many magnetic filtering devices have been proposed in the prior art for hindering the movement through an engine or transmission lubrication system of particulate matter which is magnetically attractive. Examples of such devices can be found in the following U S Letters Patent: Nbr. 5,468,381 by the Applicant; Nbr. 5,282,963 by Hull et al; Nbr.
5,273,648 by Caiozza; Nbr. 5,228,990 by Chiang; Nbr. 5,089,129 by Brigman; Nbr. 5,078,871 by McCready; Nbr.'s 5,009,779, 4,642,183 and 4,501 ,660 by Hebert; Nbr. 4,894,153 by Sirdavant; Nbr.4,839,044 by Tomita; Nbr.4,826,592 by Taylor; Nbr. 4,629,558 by Garritty; Nbr. 4,613,435 by Shoemaker; Nbr. 4,450,075 by Krow; Nbr. 4,446,019 by Robinson; Nbr. 4,218,320 by Liaw; Nbr. 4,067,810 by Sullivan; Nbr. 4,052,312 by King; Nbr.
3,887,469 by Hayashi; and Nbr. 3,480,145 by Gladden. While these devices may be suitable for a particular purpose to which they address, it will be apparent to those skilled in the art that said devices would not be as suitable for the purposes of the present invention.
Although these and other such devices now in the prior art have attempted to address the problem of metal particulate matter flowing through an engine lubrication system, they have generally failed to address the need for such devices to be manufacturable at a cost which would allow their affordable availability to the general consuming public. Also, such devices ofthe prior art have generally been designed of non- disposable elements for use in conjunction with various forms of filtration media, and have not been designed of disposable components for use in conjunction with a removable lubricant collection pan, such as a flat-bottomed oil or drip pan. As well , sueh devices have generally failed to achieve the repiaceabie-eost efficiencies available to users of the present invention.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of devices now present in the art, the invention disclosed herein provides an improved magnetic filter for use in a fluid lubrication system. The magnetic filter of the present invention includes a permanent magnetic sheet, having oppositely disposed upper and Iower surfaces, for placement along an interior wall of a fluid bearing component of a fluid lubrication system.
The magnetic sheet may further comprise means for frictionally hindering the movement of particles across one of the upper or Iower surfaces. Upon a closer review of the more detailed description herein, those skilled in the art will recognize that the concepts of the present invention easily overcome the problems described above which have been heretofore commonly associated with magnetic filter adapter devices. As such, the general purpose ofthe present invention is to provide a new and improved magnetic filter which has all the advantages of the prior art and none of the disadvantages.
It is an additional object of the present invention to provide a new and improved magnetic filter which can be used with a wide variety of lubrication systems.
It is an additional object of the present invention to provide a new and improved magnetic filter whieh can be used in conjunction with a removable fluid coHeetion pan of a fluid lubrication system.
It is an additional object of the present invention to provide a new and improved magnetic filter whieh enhances the filtering process of lubrieating and cooling fluids by , 5 removing a significant amount of magnetically attractable particulate matter from said fluids as they flow through portions of a lubrication system.
•
It is a further object of the present invention to provide a new and txriproved magnetic filter which is effective in removing metal particles from lubricating fluids before said fluids 10 reach the mechanical filtration elements of a lubrication system, and thereby leaving said mechanical filtration elements free to trap nonmetallie particles.
It is a further object ofthe present invention to provide a new and improved magnetic filter which may be manufactured for use with a wide variety of fluid lubrication systems. 15
It is a further object ofthe present invention to provide a new and improved magnetic filter which is disposable.
It is a further object ofthe present invention to provide a new and improved magnetic 20 filter which is quickly and easily installed in a fluid lubrication system without the need for special tools or skills.
It is another object of the present invention to provide a new and improved magnetic filter which may be easily and efficiently manufactured, marketed and installed. 25
It is still a further object of the present invention to provide a new and improved magnetic filter which is of durable and reliable construction.
It is yet still a further object of the present invention to provide a new and improved 30 magnetic filter which meets all federal, state, local and other private standards, guidelines, regulations and recommendations with respect to safety, environmental friendliness, energy conservation, etc.
An even further object of the present invention is to provide a new and improved a 35 magnetic filter which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby making such a magnetic filter economically available to the buying public.
These together with other objects of the invention, along with the various features of novelty which characterize the magnetic filter of the present invention, are pointed out with particularity in the claims appended hereto and forming a part of this disclosure. The more important objects of the present invention have been outlined rather broadly in order that the detailed description thereof whieh follows may be better understood, and in order that the present contribution to the art may be better appreciated. For a better understanding of the invention, its operational advantages and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated a preferred embodiment of the invention.
Those skilled in the art will readily ascertain, however, that the invention is capable of other embodiments and of being practiced and carried out in various ways. In this respect, the details of construction disclosed herein, and the arrangements of the components set forth in the following description and appended drawings are for illustrative purposes, only, and are not intended to be limiting in scope. Those skilled in the art will appreciate, as well, that the conception upon which this disclosure is based, may be readily utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. Said other structures may include, but are not limited to, those which are aesthetic in nature, or those which include the substitution of other materials as they become available, and which substantially perform the same function in substantially the same manner with substantially the same result as the present invention. It is important, therefore, that the claims appended hereto be regarded as including such equivalent structures, constructions, methods and systems insofar as these do not depart from the spirit and scope of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description.
Such description makes reference to the appended drawings, wherein: FIG. 1 is a side view of a preferred embodiment of a magnetic filter according to the present invention;
FIG. 2 is a top view of the embodiment of a magnetic filter of FIG. 1 ;
FIG. 3 is a top view of another embodiment of a magnetic filter according to the present invention;
FIG. 4 is a reduced top view ofthe embodiment of a magnetic filter of FIG. 3, placed in operable position inside a Iiquid lubricant collection pan;
FIG. 5 is a reduced side section view of the embodiment of a magnetic filter of FIG. 3, along line 5 - 5 of FIG. 4;
FIG. 6 is a side section view of another embodiment of a magnetic filter according to the present invention;
FIG. 7 is a top view of still another embodiment of a magnetic filter according to the present invention; and
FIG. 8 is a left side view of the embodiment of FIG. 7.
DETAILED DESCRIPTION OF A PROFFERED EMBODIMENT
The present invention comprises an improved magnetic filter for use with a wide variety of lubrication systems, such as those which are typically used with combustion engines and transmission systems. The magnetic filter of the present invention indudes a permanent magnetic sheet, having oppositely disposed upper and Iower surfaces, for placement along an interior wall of a fluid lubrication system, such as in the bottom of a lubricant collection pan. The magnetic sheet may further comprise means for frictionally hindering the movement of particles across one of the upper or Iower surfaces of said sheet.
Various embodiments of the instant invention are illustrated in the appended drawings and described in greater detail, below. (All like numerical designations in the figures represent the same element or similar elements. )
FIG.'s 1 and 2 illustrate an embodiment of a magnetic filter 10 according to the present invention, for use in a fluid lubrication system. The filter 10 is made in the form of a permanent magnetic sheet 11 , having oppositely disposed upper and Iower surfaces 13 and 15, respectively, for plaeement along an interior wall of a fluid-bearing component of a lubrication system, such as along the interior bottom surface of a lubricant collection pan 17 (FIG.'s 3 and 4) which is typically found affixed to the lower side of most combustion engines or automotive transmission systems. As illustrated in FIG.'s 3 and 4, the filter 10 is placed inside pan 17, such that magnetically attractable metal particles flowing through the pan 17 in a Iiquid lubricant may be attracted thereto, and thereby pulled out of the lubricant. It is preferred that the shape, length and width of the filter 10 be sufficient for covering a significant portion ofthe interior walled surface along which it is placed. For example, when in operable position in the lubricant collection pan 17, it is preferred that the filter 10 is substantially flat against the bottom 17B ofthe lubricant collection pan 17 and covering most ofthe interior surface of said bottom. Those skilled in the art will recognize, however, that the magnetic filter 10 may be formed in a wide variety of shapes and sizes for fitting in a similar fashion within a wide variety of fluid bearing components of a variety of lubrication systems.
FIG.'s 3 through 5 illustrate another embodiment of a magnetic filter 110 according to the instant invention, whieh is substantially similar to the magnetic filter 10, except that it includes means for frictionally hindering the movement of particles across at least one of its upper or Iower surfaces, 113 and 115, respectively. In the magnetic sheet 110, such means comprise a plurality of apertures 119 formed through magnetic sheet 111 , between the upper and Iower surfaces 113 and 115, respectively. In the illustrated embodiment, the apertures 119 are substantially square, for providing a vertical side surface 120 between the surfaces 113 and 115. which surface 120 is substantially perpendicular to both the planes of the upper and Iower surfaces, 113 and 115, respectively. Such an orientation of said vertical side surface 120 is antithetical to the flow of particles across the surfaces 113 or 115 in virtually any direction. Another purpose of the plurality of apertures 119 is to provide a plurality of openings in the magnetic sheet mateπal 111 through which flux between opposite poles on the upper and iower surfaces, 113 and 115, respectively, of the magnetic sheet ♦ 5 material 111 may be oriented. Such orientation of said flux into magnetic fields located around the periphery of each aperture 119, when combined with the mechanical friction
• available through the vertical side surfaces 120 of each aperture 119, provides a substantial barrier to metallic partides which may be carried in such lubricating fluid.
1 θ Those skilled in the art will recognize other ways the frictional movement hindering means of the present invention may be formed, such as is illustrated, for example, in a magnetic filter 210 in FIG. 6. Said filter 210 is formed of a magnetic sheet 211 , which is substantially similar to the sheet 111 of the filter 110, except that it is semi-wedged in shape, being thicker at a first end 217 than at an opposite end 219. This causes each of a plurality
15 of apertures 219 in the sheet 211 , which are formed in substantially similar fashion as the apertures 119 of the magnetic sheet 111 Jo have one vertical side wall 220H substantially higher than the remaining vertical side walls 220.
Still another form of frictional movement hindering means of the present invention
20 is illustrated in FIG.'s 7 and 8, in which is provided a magnetic filter 310 which is substantially similar to the filter 10, being formed of a magnetic sheet 311 having oppositely disposed upper and Iower surfaces 313 and 315, respectively. Unlike the magnetic filters 110 and 210, however, the frictional movement hindering means of the magnetic filter 310 does not comprise a plurality of apertures formed through the magnetic sheet 311. Rather,
25 the frictional movement hindering means of the magnetic filter 310 comprises a plurality of ridges 323 formed in at least one of the upper or lower surfaces 313 or 315 of the magnetic sheet 311. It is preferred that said ridges 323 are formed in a plurality of parallel aσays, such that the flow of particles across the surface 313 or 315 is frictionally opposed by said ridges 323. Such ridges 323 may be formed via a wide variety of means which are known.
30
It is preferred that each of the magnetic filters of then instant invention is made of a rubber bonded magnetic material. such as strontium ferrite composite materials formed in an acrylic nitrile, polyisoprene or equivalent general rubber base. Such a material is marketed by THE ELECTRODYNE COMPANY, of Batavia, Ohio, under the tradename of
35 PLASTALLOY. Although it is preferred that the magnetic sheets 11, 111 , 211 and 311 of the instant invention are of the multiple-pole-on-each-surface variety, those skilled in the art will recognize that conventional single poied surfaces will also work in accordance with the instant invention. it is also preferred that the general thickness of the magnetic filters according to the instant invention be in the range of between .030 inches and .375 inches, for ease in die-cutting and packaging; although those skilled in the art will recognize that other thicknesses of magnetic street material may be used in accordance with the present invention. It has been found that magnetically attractable particles as small as 1 micron in diameter can be readily extracted from lubricating fluids in an engine by a filter made in aeeordance with the instant invention.
The inventor has given a non-limiting description of a preferred embodiment of the present invention, to which many changes may be made without deviating from the spirit of the invention. While this invention has been described with reference to several illustrative embodiments, this description is not intended to be construed in a limiting sense. Various modifications and combinations ofthe preferred embodiment, as well as other embodiments of this invention, will be apparent to a person skilled in the art upon reference to this description. It is therefore contemplated that the appended claims cover any such modifications and/or embodiments that fall within the true scope of the present invention.

Claims

CLAIMSIt is claimed:
1. A magnetic filter for use in a fluid lubrication system, comprising: a permanent magnetic sheet, having oppositely disposed upper and Iower surfaces, for placement along an interior wall of a fluid lubrication system.
2. The magnetic filter as recited in claim 1 , wherein the magnetic sheet is made of a rubber bonded magnetic material.
3. The magnetic filter as recited in claim 3, wherein the bonded magnetic material is a strontium ferrite composite formed in a rubber base.
4. The magnetic filter as recited in claim 1 , further comprising means for frictionally hindering the movement of particles across one of the upper or Iower surfaces of said magnetic sheet.
5. The magnetic filter as recited in claim 4, wherein said movement hindering means comprises a plurality of apertures formed through the magnetic sheet, between the upper and Iower surfaces.
6. The magnetic filter as recited in claim 4, wherein each of said plurality of apertures is substantially square, having a plurality of vertical side surfaces between the upper and Iower surfaces of the magnetic sheet, which vertical side surfaces are substantially perpendicular to both the planes of the upper and Iower surfaces.
7. The magnetic filter as recited in claim 4, wherein the magnetic sheet is semi-wedged in shape, being thicker at a first end than at an opposite end.
PCT/US1996/014527 1995-09-08 1996-09-09 Magnetic filter for use in a fluid lubrication system WO1997009275A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU71078/96A AU7107896A (en) 1995-09-08 1996-09-09 Magnetic filter for use in a fluid lubrication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US342395P 1995-09-08 1995-09-08
US60/003,423 1995-09-08

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007006817A1 (en) 2005-07-12 2007-01-18 Centro De Investigación De Rotación Y Torque Aplicada, S.L. C.I.F. B83987073 Filter for capturing polluting emissions
EP1795791A1 (en) * 2005-12-09 2007-06-13 Saturn Electronics & Engineering, Inc. Hydraulic fluid passage with particle gettering magnet
US7354563B2 (en) 1997-03-07 2008-04-08 William Marsh Rice University Method for purification of as-produced fullerene nanotubes
US8127791B2 (en) 2005-12-21 2012-03-06 Saturn Electronics & Engineering, Inc. Solenoid operated fluid control valve
US8387644B2 (en) 2007-02-09 2013-03-05 Saturn Electronics & Engineering, Inc. Solenoid operated fluid control valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812972A (en) * 1972-05-02 1974-05-28 J Rosenblum Liquid filter and method for fabricating same
US5078871A (en) * 1990-06-19 1992-01-07 Mccready David F Magnetic oil filter particle trap
US5085768A (en) * 1988-03-09 1992-02-04 Mitsubishi Denki Kabushiki Kaisha Welded fuel tank
US5314625A (en) * 1992-12-29 1994-05-24 Michael Farnelli External oil pan magnet
US5383534A (en) * 1993-10-26 1995-01-24 Pollier; James D. Magnetic collector for lubrication systems
US5556540A (en) * 1994-06-30 1996-09-17 Brunsting; William J. Magnetic assembly for a closed pressurized flow path of lubricating oil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812972A (en) * 1972-05-02 1974-05-28 J Rosenblum Liquid filter and method for fabricating same
US5085768A (en) * 1988-03-09 1992-02-04 Mitsubishi Denki Kabushiki Kaisha Welded fuel tank
US5078871A (en) * 1990-06-19 1992-01-07 Mccready David F Magnetic oil filter particle trap
US5314625A (en) * 1992-12-29 1994-05-24 Michael Farnelli External oil pan magnet
US5383534A (en) * 1993-10-26 1995-01-24 Pollier; James D. Magnetic collector for lubrication systems
US5556540A (en) * 1994-06-30 1996-09-17 Brunsting; William J. Magnetic assembly for a closed pressurized flow path of lubricating oil

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7655302B2 (en) 1997-03-07 2010-02-02 William Marsh Rice University Continuous fiber of fullerene nanotubes
US7481989B2 (en) 1997-03-07 2009-01-27 William Marsh Rice University Method for cutting fullerene nanotubes
US7354563B2 (en) 1997-03-07 2008-04-08 William Marsh Rice University Method for purification of as-produced fullerene nanotubes
US7390767B2 (en) 1997-03-07 2008-06-24 William Marsh Rice University Method for producing a catalyst support and compositions thereof
US7390477B2 (en) 1997-03-07 2008-06-24 William Marsh Rice University Fullerene nanotube compositions
US7419624B1 (en) 1997-03-07 2008-09-02 William Marsh Rice University Methods for producing composites of fullerene nanotubes and compositions thereof
US7419651B2 (en) 1997-03-07 2008-09-02 William Marsh Rice University Method for producing self-assembled objects comprising fullerene nanotubes and compositions thereof
US7632569B2 (en) 1997-03-07 2009-12-15 William Marsh Rice University Array of fullerene nanotubes
US7510695B2 (en) 1997-03-07 2009-03-31 William Marsh Rice University Method for forming a patterned array of fullerene nanotubes
US7939136B2 (en) 1997-03-07 2011-05-10 William Marsh Rice University Method for forming composites of sub-arrays of fullerene nanotubes
WO2007006817A1 (en) 2005-07-12 2007-01-18 Centro De Investigación De Rotación Y Torque Aplicada, S.L. C.I.F. B83987073 Filter for capturing polluting emissions
US8186317B2 (en) 2005-12-09 2012-05-29 Saturn Electronics & Engineering, Inc. Hydraulic fluid passage with particle gettering magnet field of the invention
US7673597B2 (en) 2005-12-09 2010-03-09 Saturn Electronics & Engineering, Inc. Hydraulic fluid passage with particle gettering magnet
EP1795791A1 (en) * 2005-12-09 2007-06-13 Saturn Electronics & Engineering, Inc. Hydraulic fluid passage with particle gettering magnet
US8567755B2 (en) 2005-12-21 2013-10-29 Saturn Electronics & Engineering, Inc. Solenoid operated fluid control valve
US8371331B2 (en) 2005-12-21 2013-02-12 Saturn Electronics & Engineering, Inc. Solenoid operated fluid control valve
US8127791B2 (en) 2005-12-21 2012-03-06 Saturn Electronics & Engineering, Inc. Solenoid operated fluid control valve
US8733393B2 (en) 2005-12-21 2014-05-27 Flextronics Automotive Usa, Inc. Solenoid operated fluid control valve
US8733395B2 (en) 2005-12-21 2014-05-27 Flextronics Automotive Usa, Inc. Solenoid operated fluid control valve
US8387644B2 (en) 2007-02-09 2013-03-05 Saturn Electronics & Engineering, Inc. Solenoid operated fluid control valve

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