Patent US4785379A successfully refreshed from Google Patents.
US4785379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit module retainer
Assignee: General Dynamics Government Systems Corp
•
Filing: 1987-12-04
•
Granted: 1988-11-15
•
Expires: 2007-12-04
Abstract
Abstract A printed circuit module retainer has two linear guides which are channeled to accept edges of printed circuit module. A serpentine spring transverses each channel to retain an inserted module.
Inventors
- 👤 Melville A. Goodrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:49
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1404
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
A printed circuit module retainer comprising: two elongated guides, each guide having an elongated channel with a first channel wall, and a second channel wall parallel to said first channel wall, each first channel wall having an elongated groove; said guides adapted to be mounted in parallel spaced relationship for accepting edges of a printed circuit module; and an elongated serpentine spring corresponding to each channel, each spring retained by the corresponding groove against the second channel wall of its corresponding channel, for urging an edge of an inserted printed circuit module against the second channel wall of the corresponding channel.
Claim 2
Dependent Claim
101 words
A printed circuit module retainer comprising: two elongated guides, each guide having an elongated channel with a first channel wall, and a second channel wall parallel to said first channel wall, each first channel wall having an elongated groove; said guides adapted to be mounted in parallel spaced relationship for accepting edges of a printed circuit module; and an elongated serpentine spring corresponding to each channel, each spring retained by the corresponding groove against the second channel wall of its corresponding channel, for urging an edge of an inserted printed circuit module against the second channel wall of the corresponding channel.
Claim 3
Dependent Claim
24 words
The retainer of claim 1 wherein each of said guides has fins for radiating heat extending from at least one side of each guide.
Claim 4
Dependent Claim
120 words
A retainer for a plurality of printed circuit modules comprising: two cold walls, each cold wall defined as an elongated guide, each guide having a plurality of elongated channels, each channel having a first channel wall, and a second channel wall parallel to said first channel wall, each first channel wall having an elongated groove; said cold walls adapted to be mounted in parallel spaced relationship for accepting edges of a plurality of printed circuit modules; and an elongated serpentine spring corresponding to each groove, each spring retained by the corresponding groove against the second channel wall of its corresponding channel, for urging an edge of an inserted printed circuit module against the second channel wall of the corresponding channel.
Claim 5
Dependent Claim
120 words
A retainer for a plurality of printed circuit modules comprising: two cold walls, each cold wall defined as an elongated guide, each guide having a plurality of elongated channels, each channel having a first channel wall, and a second channel wall parallel to said first channel wall, each first channel wall having an elongated groove; said cold walls adapted to be mounted in parallel spaced relationship for accepting edges of a plurality of printed circuit modules; and an elongated serpentine spring corresponding to each groove, each spring retained by the corresponding groove against the second channel wall of its corresponding channel, for urging an edge of an inserted printed circuit module against the second channel wall of the corresponding channel.
Claim 6
Dependent Claim
17 words
The retained of claim 3 wherein each cold wall carries a plurality of fins for radiating heat.
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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |