US4948923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom cover installation structure of a shield case
Assignee: Alps Alpine Co Ltd
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Filing: 1989-06-20
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Granted: 1990-08-14
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Expires: 2009-06-20
Abstract
Abstract An insulation cover attached to a shield case such that the cover substantially seals the open side of the shield case without extending beyond the edge of the shield case. The cover plate is connected to the shield case by means of a series of notches and protuberances formed along the edge of the cover plate which match with holes formed in the legs of the shield case. When the cover is attached to the shield case, the circuitry inside the shield case is protected from both contaminants during installation and short circuits when installed on a mother board.
Inventors
- 👤 Nobuyuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:30
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/002; H05K9/0022; H05K9/0024; H05K9/0032
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
A shield case and cover assembly comprising: a hollow shield case having an open side and plurality of legs affixed to the edge of said case defining said open side, each leg defining a hole therethrough; a cover plate whose perimeter configuration is substantially the same as the configuration of the edge of the case defining said open side; the cover plate defining a plurality of notch and protuberance pairs, the number of said pairs corresponding to the number of legs of the shield case and whose placement on said cover plate are such that when each leg is positioned in a notch, each protuberance is engaged with a hole, and said cover plate covers said open side of said shield case.
Claim 2
Dependent Claim
122 words
A shield case and cover assembly comprising: a hollow shield case having an open side and plurality of legs affixed to the edge of said case defining said open side, each leg defining a hole therethrough; a cover plate whose perimeter configuration is substantially the same as the configuration of the edge of the case defining said open side; the cover plate defining a plurality of notch and protuberance pairs, the number of said pairs corresponding to the number of legs of the shield case and whose placement on said cover plate are such that when each leg is positioned in a notch, each protuberance is engaged with a hole, and said cover plate covers said open side of said shield case.
Claim 3
Dependent Claim
19 words
A shield case and cover assembly of claim 1 wherein said cover plate is made of an insulating material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |