US3234318A - Electric shield for a very highfrequency channel selector - Google Patents

Electric shield for a very highfrequency channel selector Download PDF

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Publication number
US3234318A
US3234318A US314207A US31420763A US3234318A US 3234318 A US3234318 A US 3234318A US 314207 A US314207 A US 314207A US 31420763 A US31420763 A US 31420763A US 3234318 A US3234318 A US 3234318A
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US
United States
Prior art keywords
housing
rim
lid
channel selector
electric shield
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US314207A
Inventor
Henricus Adrianus Van Lieshout
Hoevenars Autoon Frits J Marie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Philips Corp
North American Philips Co Inc
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US Philips Corp
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Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
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Publication of US3234318A publication Critical patent/US3234318A/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0037—Housings with compartments containing a PCB, e.g. partitioning walls
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials

Definitions

  • the invention relates to a metal housing for a very high frequency channel selector, said housing comprising a detachable lid, which holds a. thin metal layer or metal foil against the rim of the housing so that it is electrically sealed or shielded.
  • a metal lid and a shielding metal layer or foil have inserted between them an elastic intermediate layer, for example, of foam plastic.
  • the lid is secured to the housing by means of screws.
  • the lid is made of a rubber-like, elastic material, for example, a suitable plastic and is provided with a rim clamping around the rim of the housing, while the edge of the metal shielding layer or foil, bent over at least once at right angles, is clamped tight between the two first-mentioned rims.
  • the figure shows in a sectional view the throughshaped metal housing 1 of a very high frequency channel selector, divided by partitions 3 in a conventional manner into a number of compartments.
  • the parts of the channel selector arranged in the housing 1 are not shown for the sake of clarity.
  • the housing 1 has a rim or flange 5, bent approximately at right angles and extending outwardly.
  • the rim 9 of the lid 7 has two bends approximately at right angles.
  • the rim 9, as will be seen from the figure, extends beneath the rim 5 and housing 1, and is fastened to the housing 1 without the need for further means.
  • a metal foil for example, a copper foil .11, which is urged against the rim 5 of the housing 1 by the lid 7 is provided to form an electric shield.
  • the edge of the foil 11 is bent, like the rim 9 of the lid 7, around the rim 5 of the housing 1 and the foil 11 is clamped tight between the rim 9, and the rim 5 of the housing 1.
  • the inner side of the lid 7 may also be provided with elevated ribs or ridges 15 which shields one compartment from another and improves the contact between the foil .and the partitions 3. Also the lid 7 has a similar rib 17 along the rim 5 of the housing 1.
  • a conductive metal layer may be applied to the inner side of the lid 7.
  • An electric shield for a very high frequency channel selector housing comprising a partitioned housing member having an outwardly extending rim surrounding the open end of said housing member, a lid of elastic material having a marginal skirt portion defining an inwardly opening channel receiving the rim of said housing and an electric shielding rfoil overlying the open end of said housing and clamped in place between said housing rim and the marginal portion of said lid.
  • An electric shield for a very high frequency channel selector housing comprising a partitioned housing member having an outwardly extending rim portion surrounding the open end of said housing member, an electric shielding foil overlying the open end of said housing and bent around and under said rim, a lid member of elastic material having a marginal U-shaped skirt portion, defining an inwardly opening channel receiving said housing rim and associated shielding foil, said lid member clamping said foil in electric shielding relation With said housing member.

Description

Feb. 8, 1966 H. A. VAN LIESHOUT ETAL 3,234,318
ELECTRIC SHIELD FOR A VERY HIGH-FREQUENCY CHANNEL SELECTOR Filed Oct. 7, 1963 INVENTORS HENRICUS A.VAN LIESHOUT. ANTOON EJ. M. HOEVENAARS.
BY wk 0% AGENT United States Patent 3,234,318 ELECTRIC SHIELD FOR A VERY HIGH- FREQUENCY CHANNEL SELECTOR Henricus Adrianns van Lieshout and Antoon Frits Jozef Marie Hoevenaars, both of Emmasingel, Eindhoven, Netherlands, assignors to North American Philips Company, Inc., New York, N.Y., a corporation of Delaware Filed Oct. 7, 1963, Ser. No. 314,207 Claims priority, application Netherlands, Oct. 12, 1962, 284,312 4 Claims. (Cl. 174--35) The invention relates to a metal housing for a very high frequency channel selector, said housing comprising a detachable lid, which holds a. thin metal layer or metal foil against the rim of the housing so that it is electrically sealed or shielded.
In a known embodiment a metal lid and a shielding metal layer or foil have inserted between them an elastic intermediate layer, for example, of foam plastic. The lid is secured to the housing by means of screws. This invention has for its object to provide an electric shield for very high frequencies in which no screws are required, and which can be manufactured less expensively in large numbers.
In accordance with the invention this is achieved in that the lid is made of a rubber-like, elastic material, for example, a suitable plastic and is provided with a rim clamping around the rim of the housing, while the edge of the metal shielding layer or foil, bent over at least once at right angles, is clamped tight between the two first-mentioned rims.
The invention will be described more fully with reference to the accompanying drawing, which shows a presently preferred embodiment in a cross sectional view.
The figure shows in a sectional view the throughshaped metal housing 1 of a very high frequency channel selector, divided by partitions 3 in a conventional manner into a number of compartments. The parts of the channel selector arranged in the housing 1 are not shown for the sake of clarity. The housing 1 has a rim or flange 5, bent approximately at right angles and extending outwardly. A lid 7 of a rubber-like, elastic material, for example a suitable synthetic substance, such as polyethylene, having a rim 9 clamping around the rim of the housing 1. In the embodiment shown, the rim 9 of the lid 7 has two bends approximately at right angles. The rim 9, as will be seen from the figure, extends beneath the rim 5 and housing 1, and is fastened to the housing 1 without the need for further means.
Owing to the elasticity of the material of the lid, the
latter can always be lifted from the housing 1 and be rearranged thereon.
On the inner side of the lid 7 a metal foil, for example, a copper foil .11, which is urged against the rim 5 of the housing 1 by the lid 7 is provided to form an electric shield. To this end the edge of the foil 11, is bent, like the rim 9 of the lid 7, around the rim 5 of the housing 1 and the foil 11 is clamped tight between the rim 9, and the rim 5 of the housing 1.
The inner side of the lid 7 may also be provided with elevated ribs or ridges 15 which shields one compartment from another and improves the contact between the foil .and the partitions 3. Also the lid 7 has a similar rib 17 along the rim 5 of the housing 1.
Instead of a separate metal foil 11, a conductive metal layer may be applied to the inner side of the lid 7.
We claim:
1. An electric shield for a very high frequency channel selector housing comprising a partitioned housing member having an outwardly extending rim surrounding the open end of said housing member, a lid of elastic material having a marginal skirt portion defining an inwardly opening channel receiving the rim of said housing and an electric shielding rfoil overlying the open end of said housing and clamped in place between said housing rim and the marginal portion of said lid.
2. An electric shield for a very high frequency channel selector housing comprising a partitioned housing member having an outwardly extending rim portion surrounding the open end of said housing member, an electric shielding foil overlying the open end of said housing and bent around and under said rim, a lid member of elastic material having a marginal U-shaped skirt portion, defining an inwardly opening channel receiving said housing rim and associated shielding foil, said lid member clamping said foil in electric shielding relation With said housing member.
3. An electric shield according to claim 2 wherein said shielding foil is secured directly to the inside of said lid member.
*4. An electric shield according to claim 2 wherein said lid member has projecting rib means for engaging the inner surface of the side walls of said housing member and a pair of projecting rib means defining a channel for receiving the partitions of said housing member.
No references cited.
JOHN F. BURNS, Primary Examiner.

Claims (1)

1. AN ELECTRIC SHIELD FOR A VERY HIGH FREQUENCY CHANNEL SELECTOR HOUSING COMPRISING A PARTITIONED HOUSING MEMBER HAVING AN OUTWARDLY EXTENDING RIM SURROUNDING THE OPEN END OF SAID HOUSING MEMBER, A LID OF ELASTIC MATERIAL HAVING A MARGINAL SKIRT PORTION DEFINING AN INWARDLY OPENING CHANNEL RECEIVING THE RIM OF SAID HOUSING AND AND ELECTRIC SHIELDING FOIL OVERLYING THE OPEN END OF SAID HOUSING AND CLAMPED IN PLACE BETWEEN SAID HOUSING RIM AND THE MARGINAL PORTION OF SAID LID.
US314207A 1962-10-12 1963-10-07 Electric shield for a very highfrequency channel selector Expired - Lifetime US3234318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL284312 1962-10-12

Publications (1)

Publication Number Publication Date
US3234318A true US3234318A (en) 1966-02-08

Family

ID=19754169

Family Applications (1)

Application Number Title Priority Date Filing Date
US314207A Expired - Lifetime US3234318A (en) 1962-10-12 1963-10-07 Electric shield for a very highfrequency channel selector

Country Status (6)

Country Link
US (1) US3234318A (en)
BE (1) BE638503A (en)
DE (1) DE1270141B (en)
ES (1) ES292368A1 (en)
GB (1) GB1007385A (en)
NL (1) NL284312A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49141046U (en) * 1973-04-03 1974-12-05
US4074825A (en) * 1976-11-16 1978-02-21 Gsw Limited/Limitee End cap assembly for an appliance control panel
US4110552A (en) * 1975-07-07 1978-08-29 International Telephone & Telegraph Corporation Electro/mechanical enclosure with magnetic cover means
US4567317A (en) * 1983-07-07 1986-01-28 Computer Products, Inc. EMI/RFI Protected enclosure
US4697044A (en) * 1983-12-26 1987-09-29 Alps Electric Co., Ltd. Casing for electronic devices
US5895884A (en) * 1995-02-07 1999-04-20 Nokia Mobile Phones, Ltd. Shielding device with push fit lid
EP0966190A2 (en) * 1998-06-17 1999-12-22 PCS PC-Systeme Entwicklungs- und Produktionsgesellschaft mbH & Co. KG Device for acheiving shielding in a plastic casing
US6121548A (en) * 1997-09-24 2000-09-19 Sumitomo Wiring Systems, Ltd. Electrical connection box
US20030152339A1 (en) * 2001-02-12 2003-08-14 Edwin Dair Methods and apparatus for fiber-optic modules with shielded housing/covers having a front portion and a back portion
US6659655B2 (en) 2001-02-12 2003-12-09 E20 Communications, Inc. Fiber-optic modules with housing/shielding
US20080310139A1 (en) * 2007-06-14 2008-12-18 Gerald Robert English Electromagnetic interference shielding apparatus
US20130083498A1 (en) * 2011-09-30 2013-04-04 General Instrument Corporation Device and Method for a Signal Shield
US20160181677A1 (en) * 2012-10-19 2016-06-23 Prism Microwave, Inc. Radio frequency filter assembly
US9462732B2 (en) 2013-03-13 2016-10-04 Laird Technologies, Inc. Electromagnetic interference shielding (EMI) apparatus including a frame with drawn latching features

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492044B1 (en) * 1980-10-10 1986-01-24 Trt Telecom Radio Electr TUBE FORMED FROM A PLATE-SHAPED MATERIAL
DE3221809A1 (en) * 1981-09-18 1983-03-31 Siemens AG, 1000 Berlin und 8000 München EMISSION FILTER
GB2199448A (en) * 1986-11-12 1988-07-06 Airtech Ltd Radio screened enclosures
US4864077A (en) * 1988-06-10 1989-09-05 Teradyne, Inc. Shielded enclosure
GB2252677A (en) * 1991-02-08 1992-08-12 Technophone Ltd RFI screened housing for electronic circuitry

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786047A1 (en) * 1968-08-10 1971-11-11 Neemann Mechanische Papierware Foil pouch made of a composite film

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49141046U (en) * 1973-04-03 1974-12-05
US4110552A (en) * 1975-07-07 1978-08-29 International Telephone & Telegraph Corporation Electro/mechanical enclosure with magnetic cover means
US4074825A (en) * 1976-11-16 1978-02-21 Gsw Limited/Limitee End cap assembly for an appliance control panel
US4567317A (en) * 1983-07-07 1986-01-28 Computer Products, Inc. EMI/RFI Protected enclosure
US4697044A (en) * 1983-12-26 1987-09-29 Alps Electric Co., Ltd. Casing for electronic devices
US5895884A (en) * 1995-02-07 1999-04-20 Nokia Mobile Phones, Ltd. Shielding device with push fit lid
US6121548A (en) * 1997-09-24 2000-09-19 Sumitomo Wiring Systems, Ltd. Electrical connection box
EP0966190A2 (en) * 1998-06-17 1999-12-22 PCS PC-Systeme Entwicklungs- und Produktionsgesellschaft mbH & Co. KG Device for acheiving shielding in a plastic casing
EP0966190A3 (en) * 1998-06-17 2000-05-03 PCS PC-Systeme Entwicklungs- und Produktionsgesellschaft mbH & Co. KG Device for acheiving shielding in a plastic casing
US20030152331A1 (en) * 2001-02-12 2003-08-14 Edwin Dair Methods and apparatus for fiber-optic modules with shielded housing/covers having mixed finger types
US20030152339A1 (en) * 2001-02-12 2003-08-14 Edwin Dair Methods and apparatus for fiber-optic modules with shielded housing/covers having a front portion and a back portion
US6607308B2 (en) 2001-02-12 2003-08-19 E20 Communications, Inc. Fiber-optic modules with shielded housing/covers having mixed finger types
US6659655B2 (en) 2001-02-12 2003-12-09 E20 Communications, Inc. Fiber-optic modules with housing/shielding
US20040037517A1 (en) * 2001-02-12 2004-02-26 Edwin Dair Methods and apparatus for fiber-optic modules with shielded housings/covers with fingers
US6874953B2 (en) 2001-02-12 2005-04-05 Jds Uniphase Corporation Methods and apparatus for fiber-optic modules with shielded housings/covers with fingers
US20080310139A1 (en) * 2007-06-14 2008-12-18 Gerald Robert English Electromagnetic interference shielding apparatus
US7903431B2 (en) 2007-06-14 2011-03-08 Laird Technologies, Inc. Electromagnetic interference shielding apparatus
US20130083498A1 (en) * 2011-09-30 2013-04-04 General Instrument Corporation Device and Method for a Signal Shield
US9113548B2 (en) * 2011-09-30 2015-08-18 Arris Technology, Inc. Device and method for a signal shield
US20160181677A1 (en) * 2012-10-19 2016-06-23 Prism Microwave, Inc. Radio frequency filter assembly
US9462732B2 (en) 2013-03-13 2016-10-04 Laird Technologies, Inc. Electromagnetic interference shielding (EMI) apparatus including a frame with drawn latching features
US10021817B2 (en) 2013-03-13 2018-07-10 Laird Technologies, Inc. Electromagnetic interference shielding (EMI) apparatus including a frame with drawn latching features

Also Published As

Publication number Publication date
DE1270141B (en) 1968-06-12
GB1007385A (en) 1965-10-13
NL284312A (en)
BE638503A (en)
ES292368A1 (en) 1963-12-01

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