US2177564A - Expansible element - Google Patents

Expansible element Download PDF

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Publication number
US2177564A
US2177564A US91795A US9179536A US2177564A US 2177564 A US2177564 A US 2177564A US 91795 A US91795 A US 91795A US 9179536 A US9179536 A US 9179536A US 2177564 A US2177564 A US 2177564A
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United States
Prior art keywords
expansible element
expansible
disc
elements
diaphragms
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Expired - Lifetime
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US91795A
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Clinton H Havill
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Eclipse Aviation Corp
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Eclipse Aviation Corp
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Priority to US91795A priority Critical patent/US2177564A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

Definitions

  • This invention relates to expansible elements and particularly to expansible elements of the character employed in diaphragms or bellows to vary the volume of a chamber formed by one or more of such expansible elements, in combination with one or more relatively fixed elements, 'such as an end wall or an enclosing frame or rim.
  • an object of this invention is to prevent, or reduce to a minimum, such thermally induced movement or expansion.
  • a bimetallic thermostat has heretofore been employed to act upon the indicating mechanism in such a manner as to correct for the effect of temperature 30 variations on the presure responsive expansible element. It has been found, however, that the correction factor does not always function as intended due to the intervention of an additional disturbing factor, namely, the tendency of the g5 entire mechanism to shift due to expansion or contraction of the supporting frame.
  • an additional disturbing factor namely, the tendency of the g5 entire mechanism to shift due to expansion or contraction of the supporting frame.
  • one or more openings 1 are provided.
  • the combination with a pair of diaphragmsmovable to infinitely numerous dif- 20 ferent positions in response-to correspondingly numerous pressure changes of means engageable with said diaphragms to hold the outer rims. thereof against movement in their own planes, said means including a metallic disc interposed 25 between said diaphragms and of substantially uniform dimensions at all temperatures, said disc being apertured to create equality of pressure on both sides thereof.

Description

Oct. 24, 1939.
c. H. HAVILL ,56
EXPANSIBLE ELEMENT Filed July 21, 1936 COPPER- v .BERYLL/UM COPPER 6 BERYLL/UM M/l/AR INVE NTOR. C/mfon ff /7m//// Patented Oct. 24, 1939 UNITED STATES PATENT OFFICE EXPANSIBLE ELEMENT Application July 21, 1936, Serial No. 91,795
1 Claim.
This invention relates to expansible elements and particularly to expansible elements of the character employed in diaphragms or bellows to vary the volume of a chamber formed by one or more of such expansible elements, in combination with one or more relatively fixed elements, 'such as an end wall or an enclosing frame or rim.
In such devices the end wall, enclosing frame, or encircling rim, while relatively fixed, is never- 0 theless subject to at least slight movement or expansiom'as a result of either temperature or pressure changes; and an object of this invention is to prevent, or reduce to a minimum, such thermally induced movement or expansion.
5 In a pressure responsive mechanism, or aneroid, of a barometer or altimeter, a bimetallic thermostat has heretofore been employed to act upon the indicating mechanism in such a manner as to correct for the effect of temperature 30 variations on the presure responsive expansible element. It has been found, however, that the correction factor does not always function as intended due to the intervention of an additional disturbing factor, namely, the tendency of the g5 entire mechanism to shift due to expansion or contraction of the supporting frame. To overcome this difliculty I propose to employ, in lieu of such supporting frame, a disc of a metallic thereto in any suitable manner, as by welding, riveting, etc.
With the illustrative construction indicated in the accompanying drawing, which shows Fig. 1 as a transverse sectional view, and Fig. 2 as a side elevation of the device, the outer rims 4 and 5 5 of the elements 2 and 3, respectively, are held fast regardless of temperature variations, and their tendency to curl inwardly or spread outwardly, is effectively checked by virtue of the engagement with the substantially non-expanding and non-contracting disc 6. At the same time the freedom of expansion and contraction, in an endwise direction, is not restricted and remains as heretofore.
In order to maintain pressure equality on both 5 sides of the disc 6, one or more openings 1 are provided.
What I claim is:
In an aneroid, the combination with a pair of diaphragmsmovable to infinitely numerous dif- 20 ferent positions in response-to correspondingly numerous pressure changes, of means engageable with said diaphragms to hold the outer rims. thereof against movement in their own planes, said means including a metallic disc interposed 25 between said diaphragms and of substantially uniform dimensions at all temperatures, said disc being apertured to create equality of pressure on both sides thereof.
US91795A 1936-07-21 1936-07-21 Expansible element Expired - Lifetime US2177564A (en)

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487947A (en) * 1945-06-22 1949-11-15 Jurg A Senn Thin-walled diaphragm power unit
US2698633A (en) * 1952-05-09 1955-01-04 American Machine & Metals Evacuated capsule for aneroid barometers
US2718904A (en) * 1952-04-09 1955-09-27 Bendix Aviat Corp Pressure sensitive diaphragm assembly
US2753415A (en) * 1952-03-07 1956-07-03 Kollsman Instr Corp Pressure responsive switch
US3078738A (en) * 1960-10-31 1963-02-26 Honeywell Regulator Co Motion-to-air-pressure transducer
US4640135A (en) * 1984-06-20 1987-02-03 Endress U. Hauser Gmbh U. Co. Sensor
WO1990007701A1 (en) * 1988-12-23 1990-07-12 Rosemount Inc. Multimodulus pressure sensor
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US8016745B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. Monitoring of a food intake restriction device
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487947A (en) * 1945-06-22 1949-11-15 Jurg A Senn Thin-walled diaphragm power unit
US2753415A (en) * 1952-03-07 1956-07-03 Kollsman Instr Corp Pressure responsive switch
US2718904A (en) * 1952-04-09 1955-09-27 Bendix Aviat Corp Pressure sensitive diaphragm assembly
US2698633A (en) * 1952-05-09 1955-01-04 American Machine & Metals Evacuated capsule for aneroid barometers
US3078738A (en) * 1960-10-31 1963-02-26 Honeywell Regulator Co Motion-to-air-pressure transducer
US4640135A (en) * 1984-06-20 1987-02-03 Endress U. Hauser Gmbh U. Co. Sensor
WO1990007701A1 (en) * 1988-12-23 1990-07-12 Rosemount Inc. Multimodulus pressure sensor
US4944187A (en) * 1988-12-23 1990-07-31 Rosemount Inc. Multimodulus pressure sensor
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US8016745B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. Monitoring of a food intake restriction device
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna

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