Patent EP0265285A2 successfully refreshed from Google Patents.
EP0265285A2
Expired / Lapsed
EP
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Electromagnetic shield for printed circuit board
Assignee: Instrument Specialities Co Inc
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Filing: 1987-10-23
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Granted: —
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Expires: 2007-10-23
Abstract
Abstract An electromagnetic shield (10) includes electrically conductive walls (16) arranged from a single strip (18) to form a rectangle. The walls (16) include pins (20) projecting from a lower edge to secure the shield (10) on a printed circuit board (12) and to provide a ground therefor, and engagement prongs (26) on the upper edge to engage a cover plate (14).
Inventors
- 👤 William H. Stickney
- 👤 Ronald W. Brewer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 01:16
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0022; H05K9/0024; H05K9/0032; Y; Y10; Y10S; Y10S174/00; Y10S174/35
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
83 words
An electromagnetic shield, comprising: four electrically conductive walls arranged to form a rectangular frame; means projecting from a lower edge of the walls for engaging with a printed circuit board; deflectable engagement prongs extending from an upper edge of the walls; and an electrically conductive cover plate having width and length dimensions similar to those of the rectangular frame engaged within said engagement prongs; wherein the walls and engagement prongs are outwardly deflectable to allow for insertion and removal of the cover plate.
Claim 2
Dependent Claim
83 words
An electromagnetic shield, comprising: four electrically conductive walls arranged to form a rectangular frame; means projecting from a lower edge of the walls for engaging with a printed circuit board; deflectable engagement prongs extending from an upper edge of the walls; and an electrically conductive cover plate having width and length dimensions similar to those of the rectangular frame engaged within said engagement prongs; wherein the walls and engagement prongs are outwardly deflectable to allow for insertion and removal of the cover plate.
Claim 3
Dependent Claim
16 words
The electromagnetic shield of claim 1, wherein the engagement prongs have greater deflectability than the walls.
Claim 4
Dependent Claim
33 words
The electromagnetic shield of claim 2, wherein the engagement prongs are adapted to incur 75% of the deflection necessary for the inserion and removal of the cover plate occurs in the engagement prongs.
Claim 5
Dependent Claim
17 words
The electromagnetic shield of any of the preceding claims, wherein the four walls have ventilation openings therein.
Claim 6
Dependent Claim
17 words
The electromagnetic shield of any of the preceding claims, wherein the engaging means comprise regularly spaced pins.
Claim 7
Dependent Claim
14 words
The electromagnetic shield of claim 5, wherein the pins have a U-shaped cross section.
Claim 8
Dependent Claim
46 words
The electromagnetic shield of any of the preceding claims, wherein each of the walls comprises an upper half which includes the upper edge and a lower half which includes the lower edge, said upper half having a thickness less than the thickness of the lower half.
Claim 9
Dependent Claim
22 words
The electromagnetic shield of claim 7, wherein the thickness of the lower half is six times the thickness of the upper half.
Claim 10
Dependent Claim
26 words
The electromagnetic shield of Claim 7 or Claim 8, wherein the upper half and the lower half are manufactured from different compositions and are welded together.
Claim 11
Dependent Claim
21 words
The electromagnetic shield of claim 9, wherein the upper half is of beryllium copper and the lower half is of brass.
Claim 12
Dependent Claim
28 words
The electromagnetic shield of any of the preceding claims, wherein the engagement prongs are defined by parallel slots extending in the wall perpendicular to a center line thereof.
Claim 13
Dependent Claim
19 words
The electromagnetic shield of any of the preceding claims, wherein the walls are made of steel plated with tin.
Claim 14
Dependent Claim
73 words
A component of an electromagnetic shield, comprising: a strip of electrically conductive metal; means projecting from a first edge of the strip for engaging with a printed circuit board, said means projecting substantially perpendicularly to a center line of the strip; and a plurality of engagement prongs defined by a plurality of slots extending through a second edge of the strip in a direction substantially perpendicular to the center line of the strip.
Claim 15
Dependent Claim
73 words
A component of an electromagnetic shield, comprising: a strip of electrically conductive metal; means projecting from a first edge of the strip for engaging with a printed circuit board, said means projecting substantially perpendicularly to a center line of the strip; and a plurality of engagement prongs defined by a plurality of slots extending through a second edge of the strip in a direction substantially perpendicular to the center line of the strip.
Claim 16
Dependent Claim
13 words
The component of claim 13, wherein said engaging means are regularly spaced pins.
Claim 17
Dependent Claim
20 words
The component of claim 14, wherein said pins are adapted to fit in holes of a standard printed circuit board.
Claim 18
Dependent Claim
25 words
The component of any of claims 13 to 15, wherein the engagement prongs each have an outward forming a recess from engaging a cover plate.
Claim 19
Dependent Claim
28 words
The component of any of claims 13 to 16, further comprising means extending from one end of the strip for fastening to the other end of the strip.
Claim 20
Dependent Claim
45 words
The component of any of claims 13 to 17, wherein the metal strip comprises a lower half which includes the first edge and an upper half which includes the second edge, said upper half having a thickness less than the thickness of the lower half.
Claim 21
Dependent Claim
21 words
The component of claim 18, wherein the thickness of the lower half is six times the thickness of the upper half.
Claim 22
Dependent Claim
22 words
The component of claim 18, wherein the upper half and the lower half are manufactured from different compositions and are welded together.
Claim 23
Dependent Claim
20 words
The component of claim 20, wherein the upper half is of beryllium copper and the lower half is of brass.
Claim 24
Dependent Claim
17 words
The component of any of claims 14 to 21, wherein the pins have a U-shaped cross section.
Claim 25
Dependent Claim
19 words
The component of any of claims 13 to 22, wherein the engagement prongs have greater deflectability than the strip.
Claim 26
Dependent Claim
17 words
The component of claim 23, further comprising reinforcing regions in the strip to reduce the deflectability thereof.
Claim 27
Dependent Claim
18 words
The component of any of claims 13 to 24, wherein the metal is of steel plated with tin.
Claim 28
Independent Claim
58 words
A method of assembling an electromagnetic shield, comprising the steps of: providing a strip of electrically conductive metal having pins extending from one edge thereof and engagement prongs extending from an opposite edge thereof; cutting the strip into a preferred length; forming the strip into a rectangle; and inserting the pins into holes in a printed circuit board.
Claim 29
Independent Claim
58 words
A method of assembling an electromagnetic shield, comprising the steps of: providing a strip of electrically conductive metal having pins extending from one edge thereof and engagement prongs extending from an opposite edge thereof; cutting the strip into a preferred length; forming the strip into a rectangle; and inserting the pins into holes in a printed circuit board.
Claim 30
Dependent Claim
18 words
The method of claim 26, further comprising the step of engaging a cover plate with the engagement prongs.
Claim 31
Dependent Claim
20 words
The method of claim 26 or claim 27, further comprising the step of fastening together the ends of the strip.
Claim 32
Dependent Claim
21 words
The method of any of claim 26 to 28, further comprising the step of grounding at least one of the pins.
References Cited (Backward Citations)
No citation records indexed.
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