US3366918A - Shell-to-shell-to-shelf rfi seal spring - Google Patents

Shell-to-shell-to-shelf rfi seal spring Download PDF

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Publication number
US3366918A
US3366918A US596534A US59653466A US3366918A US 3366918 A US3366918 A US 3366918A US 596534 A US596534 A US 596534A US 59653466 A US59653466 A US 59653466A US 3366918 A US3366918 A US 3366918A
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United States
Prior art keywords
shell
inch
shield
tabs
shelf
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Expired - Lifetime
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US596534A
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Frederick W Johnson
Leslie W Templeton
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Collins Radio Co
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Collins Radio Co
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Priority to US596534A priority Critical patent/US3366918A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591Specific features or arrangements of connection of shield to conductive members
    • H01R13/6596Specific features or arrangements of connection of shield to conductive members the conductive member being a metal grounding panel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00Electrical connectors
    • Y10S439/939Electrical connectors with grounding to metal mounting panel

Definitions

  • This invention relates in general to a frequency interference seal spring and, in particular, to a flexible strip that can be mounted so as to provide a radio frequency shield between a first member and two other members.
  • an electrical member such as a component so that it makes electrical contact with two other members.
  • a component which has a male and female shell might be mounted in an opening in a shelf.
  • Another object of this invention is to provide a radio frequency seal between a first member and two other members which may be occasionally disengaged.
  • a feature of this invention is found in the provision for a spring seal member with complex projections bent along its edges so as to provide a radio frequency shield.
  • FIGURE 1 is a perspective view of the radio frequency interference shield of this invention
  • FIGURE 2 is an end view of the shield of this invention.
  • FIGURE 3 is a plan view of a blank from which the shield is formed and is illustrated prior to bending;
  • FIGURE 4 is a perspective view of the radio frequency interference shield of this invention in place while making electrical contact between a pair of shell members and a shelf;
  • FIGURE 5 is a sectional view illustrating the seal.
  • FIGURE 1 illustrates the seal strip designated generally as 10. It comprises a longitudinal body portion 11 which is formed with a first portion 12 at right angles to the body portion 11. The other edge 13 of the body portion 11 is formed with a first plurality of offset tabs 14 which extend backwardly along the body portion 11, but whose ends 16 terminate beyond the edge 17 of the body portion 11.
  • a second plurality of tabs 18 extend from the edge 13 between the tabs 14 and comprise first portions 19 which extend parallel to the sides 12 and which have second portions 21 which form an acute angle with the portions 19 and extend backwardly toward the body portion 11.
  • the ends 22 of the portion 21 extend beyond the base 11.
  • FIGURE 2 is an end view of the interference shield of this invention and FIGURE 3 is a plan view of a blank of electrical conducting spring material from which the seal is formed.
  • a particular shield according to this invention was constructed with the following dimensions: (see FIGURE Material beryllium copper, annealed 0.003 inch thick. a-0.068 inch b0.53 inch c-0.044 inch d-0.061 inch e-0.089 inch f0.008 inch L --0.00327 inchl60 degrees L 0.O084 inch-l45 degrees L 0.O0267 inch-90 degrees L -0.003 inch-405 degrees
  • the dimensions of a blank according to FIGURE 3 were as follows:
  • FIGURE 3 The blank of FIGURE 3 is formed into the structure of FIGURE 1 and 2 by bending dies in a well known manner.
  • the shield 10 is placed on either side of a male connector socket 26 which has ledges 27 formed on its edges.
  • the radio frequency interference seal spring 10 is inserted onto the ledge 27 such that sides 12 and 19 engage opposite sides of the ledge and the back 11 engages the edge of the ledge.
  • the male socket 26 is mounted in a plate 25 formed with an opening 30. Bars and are attached to plate 25 and the male socket 26 by suitable nuts and bolts as shown.
  • the tabs 14 extend outwardly from the ledge 27 when the male socket 26 is out of engagement with the plate 25, but when the socket 26 is in position in plate 25, the tabs 14 engage the edges 23 of plate 25 and provide an interference shield.
  • the male socket 26 has a projection 31 upon which a female socket 32 is received.
  • the flexible tabs 18 make electrical engagernent with the ends 33 of the female socket 32 as shown in FIGURE 5.
  • the seal of this invention electrically connects the plate 25, the male socket 26 and the female socket 32. It is to be realized that although sockets 26 and 32 have been described which may comprise electrical plugs, that any type of members may be connected with the shield of this invention.
  • this invention provides a radio frequency interference seal spring capable of electrically connecting a male and female connector and a plate.
  • the flange 27 may be 0.04" thick. The spring, once in place on the flange 27, remains as an integral part of the male connector 26.
  • An interference shield for preventing radiation from a male and female socket mounted in an opening in a plate, with a ledge formed about the edge of the male socket in alignment with the plate Within the opening, the shield formed having a generally U-shaped portion which is shaped to press-fit over the ledge, a first plurality of tabs extending from the shield and engageable with an edge of the opening of the plate to make electrical contact therewith, and a second plurality of tabs extending from the shield and shaped to make electrical contact with the female socket.
  • first and second plurality of tabs extend from the same edge of the U-shaped portion and wherein the first plurality of tabs makes an angle of about ninety degrees with the second plurality of tabs.

Description

Jan. 30, 1968 F. w. JOHNSON ETAL 3,365,918
SHELLTO-SHELL-TOSHELF RFI SEAL SPRING 2 Sheets-Sheet 1 Filed Nov. 25, 1966 FIG 3 INV/iM/LL QS FREDERICK w. JOHNSON LESLIE w TEMPLETON I I ATTORNEY United States Patent Oflfice 3,366,918 Patented Jan. 30, 1968 ABSTRACT OF THE DISCLOSURE This invention consists of an electrical seal that can be mounted between a pair of members so as to also engage a mounting plate and provide electrical contact between the three members, thus providing electrical continuity and shielding from radio frequency energy.
This invention relates in general to a frequency interference seal spring and, in particular, to a flexible strip that can be mounted so as to provide a radio frequency shield between a first member and two other members.
In electrical equipments it is often desirable to mount an electrical member such as a component so that it makes electrical contact with two other members. For example, a component which has a male and female shell might be mounted in an opening in a shelf.
It is an object of the present invention, therefore, to provide a radio frequency interference seal capable of electrically connecting a male and female connector shell with a shelf so that they have electrical continuity and radio frequency interference does not occur.
Another object of this invention is to provide a radio frequency seal between a first member and two other members which may be occasionally disengaged.
A feature of this invention is found in the provision for a spring seal member with complex projections bent along its edges so as to provide a radio frequency shield.
Further objects, features, and advantages of this invention will become apparent from the following description and claims when read in view of the accompanying drawings, in which:
FIGURE 1 is a perspective view of the radio frequency interference shield of this invention;
FIGURE 2 is an end view of the shield of this invention;
FIGURE 3 is a plan view of a blank from which the shield is formed and is illustrated prior to bending;
FIGURE 4 is a perspective view of the radio frequency interference shield of this invention in place while making electrical contact between a pair of shell members and a shelf; and,
FIGURE 5 is a sectional view illustrating the seal.
FIGURE 1 illustrates the seal strip designated generally as 10. It comprises a longitudinal body portion 11 which is formed with a first portion 12 at right angles to the body portion 11. The other edge 13 of the body portion 11 is formed with a first plurality of offset tabs 14 which extend backwardly along the body portion 11, but whose ends 16 terminate beyond the edge 17 of the body portion 11.
A second plurality of tabs 18 extend from the edge 13 between the tabs 14 and comprise first portions 19 which extend parallel to the sides 12 and which have second portions 21 which form an acute angle with the portions 19 and extend backwardly toward the body portion 11. The ends 22 of the portion 21 extend beyond the base 11.
The ends 16 and 22 of tabs 14 and 21 are truncated as shown.
FIGURE 2 is an end view of the interference shield of this invention and FIGURE 3 is a plan view of a blank of electrical conducting spring material from which the seal is formed.
A particular shield according to this invention was constructed with the following dimensions: (see FIGURE Material beryllium copper, annealed 0.003 inch thick. a-0.068 inch b0.53 inch c-0.044 inch d-0.061 inch e-0.089 inch f0.008 inch L --0.00327 inchl60 degrees L 0.O084 inch-l45 degrees L 0.O0267 inch-90 degrees L -0.003 inch-405 degrees The dimensions of a blank according to FIGURE 3 were as follows:
g0.020 inch h0.125 inch i0.020 inch j-0.02O inch m--O.2l4 inch n0.266 inch y0.250 inch The blank of FIGURE 3 is formed into the structure of FIGURE 1 and 2 by bending dies in a well known manner.
In use, the shield 10 is placed on either side of a male connector socket 26 which has ledges 27 formed on its edges. The radio frequency interference seal spring 10 is inserted onto the ledge 27 such that sides 12 and 19 engage opposite sides of the ledge and the back 11 engages the edge of the ledge. The male socket 26 is mounted in a plate 25 formed with an opening 30. Bars and are attached to plate 25 and the male socket 26 by suitable nuts and bolts as shown.
The tabs 14 extend outwardly from the ledge 27 when the male socket 26 is out of engagement with the plate 25, but when the socket 26 is in position in plate 25, the tabs 14 engage the edges 23 of plate 25 and provide an interference shield. The male socket 26 has a projection 31 upon which a female socket 32 is received. When the female socket 32 is moved into engagement with the male socket 26, the flexible tabs 18 make electrical engagernent with the ends 33 of the female socket 32 as shown in FIGURE 5. In the assembled position the seal of this invention electrically connects the plate 25, the male socket 26 and the female socket 32. It is to be realized that although sockets 26 and 32 have been described which may comprise electrical plugs, that any type of members may be connected with the shield of this invention.
It is seen that this invention provides a radio frequency interference seal spring capable of electrically connecting a male and female connector and a plate. The flange 27 may be 0.04" thick. The spring, once in place on the flange 27, remains as an integral part of the male connector 26.
It is seen that this invention provides a radio frequency interference seal spring and although it has been described with respect to a particular embodiment thereof, it is not to be so limited, as changes and modifications may be made therein which are within the spirit and scope of the invention as defined by the appended claims.
We claim:
1. An interference shield for preventing radiation from a male and female socket mounted in an opening in a plate, with a ledge formed about the edge of the male socket in alignment with the plate Within the opening, the shield formed having a generally U-shaped portion which is shaped to press-fit over the ledge, a first plurality of tabs extending from the shield and engageable with an edge of the opening of the plate to make electrical contact therewith, and a second plurality of tabs extending from the shield and shaped to make electrical contact with the female socket.
2. In apparatus according to claim 1 wherein the first tabs extend backwardly and outwardly from the one edge of the U-shaped portion of the shield.
3. In apparatus according to claim 1 wherein the second tabs form the one edge of the U-shaped portion of the shield.
4. In apparatus according to claim I wherein the first and second plurality of tabs extend from the same edge of the U-shaped portion and wherein the first plurality of tabs makes an angle of about ninety degrees with the second plurality of tabs.
5. In apparatus according to claim 4 wherein the first and second plurality of tabs are alternately spaced along the edge of the U-shaped portion.
6. In apparatus according to claim 4 wherein the seal is made of electrically conducting flexible material.
7. In apparatus according to claim 6 wherein the material is beryllium copper.
References @ited UNITED STATES PATENTS 2,062,256 11/1936 Del Camp 339l43 UX 2,762,990 9/1956 Kielenstyn 339-143 2,844,644 7/1958 Soule l7435 2,872,139 2/1959 Bedford 339128 UX RICHARD E. MOORE, Primary Examiner.
US596534A 1966-11-23 1966-11-23 Shell-to-shell-to-shelf rfi seal spring Expired - Lifetime US3366918A (en)

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115655A (en) * 1976-11-18 1978-09-19 Tektronix, Inc. Electromagnetic interference shielding device
US4386814A (en) * 1981-08-17 1983-06-07 Amp Incorporated Kit for converting a panel opening to a shielded pin receptacle
US4470657A (en) * 1982-04-08 1984-09-11 International Telephone & Telegraph Corporation Circumferential grounding and shielding spring for an electrical connector
US4475023A (en) * 1981-09-25 1984-10-02 Hitachi Heating Appliances Co., Ltd. Microwave heating apparatus with fundamental and second higher harmonic chokes
US4518209A (en) * 1983-06-30 1985-05-21 Welcon Connector Company Connector block with RF shield
US4571012A (en) * 1984-12-21 1986-02-18 Molex Incorporated Shielded electrical connector assembly
US4688868A (en) * 1986-05-14 1987-08-25 Honeywell Information Systems Inc. Grounding gasket for D-shell connector
EP0278057A1 (en) * 1987-01-09 1988-08-17 Schaltbau Gesellschaft mbH Housing insertable contact set
US5015802A (en) * 1990-08-27 1991-05-14 Enlight Corporation Computer casing connector
US5052948A (en) * 1990-11-19 1991-10-01 Itt Corporation Connector ground and shield
US5064388A (en) * 1989-09-19 1991-11-12 Bull S.A. Shielding chassis for protecting an electrical circuit inside said chassis against the effects of electromagnetic radiation
US5192216A (en) * 1991-11-08 1993-03-09 The Grass Valley Group, Inc. Apparatus for grounding connectors to instrument chassis
US5204496A (en) * 1992-04-01 1993-04-20 Digital Equipment Corporation EMI shielding gasket
US5250751A (en) * 1991-07-17 1993-10-05 Kitagawa Industries Co., Ltd. Electromagnetic shielding gasket
EP0630077A2 (en) * 1993-06-17 1994-12-21 General DataComm, Inc. Grounding spring clips for modular jacks
US5814762A (en) * 1995-04-12 1998-09-29 Digital Equipment Corporation Grounding for enclosures
US6444900B1 (en) 1999-05-19 2002-09-03 Fci Americas Technology, Inc. Electromagnetic interference shielding gasket
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
US6659655B2 (en) 2001-02-12 2003-12-09 E20 Communications, Inc. Fiber-optic modules with housing/shielding
US20040259396A1 (en) * 2001-10-10 2004-12-23 Manfred Mueller Terminal block
US20050221656A1 (en) * 2004-03-30 2005-10-06 Japan Aviation Electronics Industry, Limited Connector which can easily be mounted to an object and provided with EMI protection
US20070178762A1 (en) * 2006-02-02 2007-08-02 Tyco Electronics Corporation Connector with compliant EMI gasket
US20080090461A1 (en) * 2006-10-16 2008-04-17 Tyco Electronics Corporation Interface module
US20080188126A1 (en) * 2007-02-06 2008-08-07 General Instrument Corporation Shielding Device and Method for Electrical Connectors
US20120257369A1 (en) * 2011-04-08 2012-10-11 Hon Hai Precision Industry Co., Ltd. Emi shield and electronic device using the same
US20160211621A1 (en) * 2013-10-25 2016-07-21 Yazaki Corporation Shield structure, shield shell and method of manufacturing shield connector with electric wire
US10959793B2 (en) 2014-03-17 2021-03-30 Intuitive Surgical Operations, Inc. Manipulator arm having connection interface, and related devices and systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062256A (en) * 1935-08-03 1936-11-24 Cinch Mfg Corp Plug and socket shield and ground connecter
US2762990A (en) * 1952-11-13 1956-09-11 Hartford Nat Bank & Trust Co Contact member for disc-shaped electrode connections
US2844644A (en) * 1956-12-20 1958-07-22 Gen Electric Detachable spring contact device
US2872139A (en) * 1953-10-21 1959-02-03 Jr William A Bedford Fastening device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062256A (en) * 1935-08-03 1936-11-24 Cinch Mfg Corp Plug and socket shield and ground connecter
US2762990A (en) * 1952-11-13 1956-09-11 Hartford Nat Bank & Trust Co Contact member for disc-shaped electrode connections
US2872139A (en) * 1953-10-21 1959-02-03 Jr William A Bedford Fastening device
US2844644A (en) * 1956-12-20 1958-07-22 Gen Electric Detachable spring contact device

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115655A (en) * 1976-11-18 1978-09-19 Tektronix, Inc. Electromagnetic interference shielding device
US4386814A (en) * 1981-08-17 1983-06-07 Amp Incorporated Kit for converting a panel opening to a shielded pin receptacle
US4475023A (en) * 1981-09-25 1984-10-02 Hitachi Heating Appliances Co., Ltd. Microwave heating apparatus with fundamental and second higher harmonic chokes
US4470657A (en) * 1982-04-08 1984-09-11 International Telephone & Telegraph Corporation Circumferential grounding and shielding spring for an electrical connector
US4518209A (en) * 1983-06-30 1985-05-21 Welcon Connector Company Connector block with RF shield
US4571012A (en) * 1984-12-21 1986-02-18 Molex Incorporated Shielded electrical connector assembly
EP0188876A1 (en) * 1984-12-21 1986-07-30 Molex Incorporated Shielded electrical connector assembly
US4688868A (en) * 1986-05-14 1987-08-25 Honeywell Information Systems Inc. Grounding gasket for D-shell connector
EP0278057A1 (en) * 1987-01-09 1988-08-17 Schaltbau Gesellschaft mbH Housing insertable contact set
US5064388A (en) * 1989-09-19 1991-11-12 Bull S.A. Shielding chassis for protecting an electrical circuit inside said chassis against the effects of electromagnetic radiation
US5015802A (en) * 1990-08-27 1991-05-14 Enlight Corporation Computer casing connector
US5052948A (en) * 1990-11-19 1991-10-01 Itt Corporation Connector ground and shield
US5250751A (en) * 1991-07-17 1993-10-05 Kitagawa Industries Co., Ltd. Electromagnetic shielding gasket
US5192216A (en) * 1991-11-08 1993-03-09 The Grass Valley Group, Inc. Apparatus for grounding connectors to instrument chassis
US5204496A (en) * 1992-04-01 1993-04-20 Digital Equipment Corporation EMI shielding gasket
EP0630077A2 (en) * 1993-06-17 1994-12-21 General DataComm, Inc. Grounding spring clips for modular jacks
EP0630077A3 (en) * 1993-06-17 1996-01-31 Gen Datacomm Ind Inc Grounding spring clips for modular jacks.
US5814762A (en) * 1995-04-12 1998-09-29 Digital Equipment Corporation Grounding for enclosures
US6444900B1 (en) 1999-05-19 2002-09-03 Fci Americas Technology, Inc. Electromagnetic interference shielding gasket
US6659655B2 (en) 2001-02-12 2003-12-09 E20 Communications, Inc. Fiber-optic modules with housing/shielding
US6874953B2 (en) 2001-02-12 2005-04-05 Jds Uniphase Corporation Methods and apparatus for fiber-optic modules with shielded housings/covers with fingers
US6607308B2 (en) 2001-02-12 2003-08-19 E20 Communications, Inc. Fiber-optic modules with shielded housing/covers having mixed finger types
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
US20040037517A1 (en) * 2001-02-12 2004-02-26 Edwin Dair Methods and apparatus for fiber-optic modules with shielded housings/covers with fingers
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
US20060194459A1 (en) * 2001-10-10 2006-08-31 Krone Gmbh Terminal block
US7008243B2 (en) * 2001-10-10 2006-03-07 Krone Gmbh Terminal block
US7147492B2 (en) 2001-10-10 2006-12-12 Adc Gmbh Terminal block
US20040259396A1 (en) * 2001-10-10 2004-12-23 Manfred Mueller Terminal block
US20050221656A1 (en) * 2004-03-30 2005-10-06 Japan Aviation Electronics Industry, Limited Connector which can easily be mounted to an object and provided with EMI protection
US7077696B2 (en) * 2004-03-30 2006-07-18 Japan Aviation Electronics Industry, Ltd. Connector which can easily be mounted to an object and provided with EMI protection
US7473131B2 (en) * 2006-02-02 2009-01-06 Tyco Electronics Corporation Connector with compliant EMI gasket
US20070178762A1 (en) * 2006-02-02 2007-08-02 Tyco Electronics Corporation Connector with compliant EMI gasket
US20080090461A1 (en) * 2006-10-16 2008-04-17 Tyco Electronics Corporation Interface module
JP2010507193A (en) * 2006-10-16 2010-03-04 タイコ・エレクトロニクス・コーポレイション Interface module
US7722402B2 (en) * 2006-10-16 2010-05-25 Tyco Electronics Corporation Panel interface module which provides electrical connectivity between panel and shielded jacks
CN101529665B (en) * 2006-10-16 2013-03-20 泰科电子公司 Interface module
TWI413306B (en) * 2006-10-16 2013-10-21 Tyco Electronics Corp Interface module
US20080188126A1 (en) * 2007-02-06 2008-08-07 General Instrument Corporation Shielding Device and Method for Electrical Connectors
US7621780B2 (en) * 2007-02-06 2009-11-24 General Instrument Corporation Shielding device and method for electrical connectors
US20120257369A1 (en) * 2011-04-08 2012-10-11 Hon Hai Precision Industry Co., Ltd. Emi shield and electronic device using the same
US20160211621A1 (en) * 2013-10-25 2016-07-21 Yazaki Corporation Shield structure, shield shell and method of manufacturing shield connector with electric wire
US10270212B2 (en) * 2013-10-25 2019-04-23 Yazaki Corporation Shield structure, shield shell and method of manufacturing shield connector with electric wire
US10959793B2 (en) 2014-03-17 2021-03-30 Intuitive Surgical Operations, Inc. Manipulator arm having connection interface, and related devices and systems

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