US4008942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit board holding spring
Assignee: SPX Technologies Inc
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Filing: 1975-07-29
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Granted: 1977-02-22
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Expires: 1995-07-29
Abstract
Abstract An economical guide, holding and support means for a printed circuit board is disclosed. The holding or support means may be fabricated of spring steel and may be supported at one end by the same fastening means that fastens the printed circuit board connector to its mounting surface. The holding means includes a groove or a perforation for providing three directional edge support of the printed circuit board. A notch may be provided on the printed circuit board whereby the holding means may serve as a releasable lock for retaining the printed circuit board. The openness of the holding and support means provides for improved air circulation and, therefore, a reduced chance of component overheating. The support means may also be used to provide a ground connection to the supported printed circuit board and/or to complete a test or continuity circuit by switch actuation or circuit completion.
Inventors
- 👤 Benedetto Grossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:52
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1405
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
219 words
In a printed circuit board mounting and support system of the class having a mother board supporting a connector into which one edge of a planar printed circuit board of predetermined thickness is plugged for effecting electrical connections from said printed circuit board to said connector and wherein the improvement comprises: a. a formed resilient longitudinal retaining spring for supporting the printed circuit board from the edge and for limiting the motion of said printed circuit board towards parallel planes; b. said retaining spring having a bend formed thereon at right angles to the length of said retaining spring to form a "V"; and said retaining spring otherwise shaped, formed and supported by the mother board to permit only the vertex of said "V" to contact the edge of the printed circuit board in a line normal to the plane of said printed circuit board; and wherein c. at least some of the material of said retaining spring is displaced from the central part of said vertex for a width equal to, or slightly more than, said predetermined thickness for creating a groove whereby when said vertex area is in contact with the printed circuit board said printed circuit board is contacted on its edge and adjacent sides to limit motion of said printed circuit board towards parallel planes.
Claim 2
Dependent Claim
219 words
In a printed circuit board mounting and support system of the class having a mother board supporting a connector into which one edge of a planar printed circuit board of predetermined thickness is plugged for effecting electrical connections from said printed circuit board to said connector and wherein the improvement comprises: a. a formed resilient longitudinal retaining spring for supporting the printed circuit board from the edge and for limiting the motion of said printed circuit board towards parallel planes; b. said retaining spring having a bend formed thereon at right angles to the length of said retaining spring to form a "V"; and said retaining spring otherwise shaped, formed and supported by the mother board to permit only the vertex of said "V" to contact the edge of the printed circuit board in a line normal to the plane of said printed circuit board; and wherein c. at least some of the material of said retaining spring is displaced from the central part of said vertex for a width equal to, or slightly more than, said predetermined thickness for creating a groove whereby when said vertex area is in contact with the printed circuit board said printed circuit board is contacted on its edge and adjacent sides to limit motion of said printed circuit board towards parallel planes.
Claim 3
Dependent Claim
24 words
The combination as set forth in claim 1 and including a second retaining spring associated with a second edge of said printed circuit board.
Claim 4
Dependent Claim
20 words
The combination as set forth in claim 1, wherein said groove is formed by a perforation in said retaining spring.
Claim 5
Dependent Claim
33 words
The combination as set forth in claim 1 and including a second "V" and associated vertex and groove on said retaining spring for contacting and supporting the printed circuit board at two points.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |