GB781605A - Improvements in or relating to shielding boxes and housings for radio and other highfrequency apparatus - Google Patents

Improvements in or relating to shielding boxes and housings for radio and other highfrequency apparatus

Info

Publication number
GB781605A
GB781605A GB146955A GB146955A GB781605A GB 781605 A GB781605 A GB 781605A GB 146955 A GB146955 A GB 146955A GB 146955 A GB146955 A GB 146955A GB 781605 A GB781605 A GB 781605A
Authority
GB
United Kingdom
Prior art keywords
parts
expanded
metal
enclosure
mesh
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
Application number
GB146955A
Inventor
John Albert Hampson
Neville George Webb
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments Ltd
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 Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Priority to GB146955A priority Critical patent/GB781605A/en
Priority to DEM29372A priority patent/DE1000469B/en
Publication of GB781605A publication Critical patent/GB781605A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05K9/0015—Gaskets or seals

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

781,605. Radio apparatus. MARCONI INSTRUMENTS, Ltd. Oct. 6, 1955 [Jan. 18, 1955], No. 1469/55. Class 40 (5). A metallic screening enclosure for radio apparatus, comprising at least two parts which are separable to give access to the apparatus therein, is provided with expanded-metal mesh as shown in Fig. 1 between the meeting surfaces of the separable parts so that when the parts are bolted or otherwise clamped together the meshwork bites into the meeting surfaces and thus ensures that all parts of the enclosure are in good electrical contact with each other. The packing may consist solely of strips of the expanded metal arranged between the meeting surface, Fig. 3 (not shown); alternatively, as shown in Fig. 4, the mesh work 8 may be arranged around a rubber strip, preferably together with a thin copper foil 7, the mesh work 8 and foil 7 being held in place before insertion between the separable parts of the enclosure by means of staples 9. Fig. 6 shows a sealing ring according to the invention and comprising a polytetrafluoroethylene ring 12 around which are wound strips 8 of the expanded-metal mesh. Fig. 8 shows an arrangement providing a degree of hermetic sealing and comprising a rubber block 14 having slits 15, 16 into which are inserted the edges of a metal-foil inner covering 7 together with an expanded-metal outer covering 8.
GB146955A 1955-01-18 1955-01-18 Improvements in or relating to shielding boxes and housings for radio and other highfrequency apparatus Expired GB781605A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB146955A GB781605A (en) 1955-01-18 1955-01-18 Improvements in or relating to shielding boxes and housings for radio and other highfrequency apparatus
DEM29372A DE1000469B (en) 1955-01-18 1956-01-17 Electrical shielding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB146955A GB781605A (en) 1955-01-18 1955-01-18 Improvements in or relating to shielding boxes and housings for radio and other highfrequency apparatus

Publications (1)

Publication Number Publication Date
GB781605A true GB781605A (en) 1957-08-21

Family

ID=9722533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB146955A Expired GB781605A (en) 1955-01-18 1955-01-18 Improvements in or relating to shielding boxes and housings for radio and other highfrequency apparatus

Country Status (2)

Country Link
DE (1) DE1000469B (en)
GB (1) GB781605A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308030A1 (en) * 1975-04-15 1976-11-12 Dunlop Sa Electrical continuity seal for aircraft - has metal mat in surface of hollow elastomer body reinforced by fabric layer
US4823229A (en) * 1987-08-13 1989-04-18 Waterland Iii Alfred F Canopy dryseal
CN106744045A (en) * 2016-11-16 2017-05-31 国家电网公司 Network connection haywire wiring case

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1175755B (en) * 1961-06-28 1964-08-13 Rohde & Schwarz Electrical shielding arrangement
DE4119435C2 (en) * 1991-06-13 2003-02-06 Rohde & Schwarz Corner connection for cabinet racks
US6374912B1 (en) * 1998-12-30 2002-04-23 Lucent Technologies Deep drawn enclosure with integrated heatsink and fastening details

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308030A1 (en) * 1975-04-15 1976-11-12 Dunlop Sa Electrical continuity seal for aircraft - has metal mat in surface of hollow elastomer body reinforced by fabric layer
US4823229A (en) * 1987-08-13 1989-04-18 Waterland Iii Alfred F Canopy dryseal
CN106744045A (en) * 2016-11-16 2017-05-31 国家电网公司 Network connection haywire wiring case

Also Published As

Publication number Publication date
DE1000469B (en) 1957-01-10

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