Patent US4022326A successfully refreshed from Google Patents.
US4022326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual action retaining guide for printed circuit card racks
Assignee: Individual
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Filing: 1976-04-22
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Granted: 1977-05-10
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Expires: 1996-04-22
Abstract
Abstract A retaining guide for printed circuit cards has the form of a narrow channel member having a bottom wall and vertically-extending side walls. The cards are slidably inserted into this member. The retentive force is exerted upon the cards by the fact that the channel member has a non-linear, undulating configuration as well as a plurality of spaced inwardly-extending contact surfaces of the side walls thereof.
Inventors
- 👤 Joseph Marconi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:11
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1417; H05K7/1418
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
70 words
A retaining guide for printed circuit cards comprising an elongated channel member having a bottom wall and side walls vertically extending therefrom, said member having a non-linear undulating configuration, said side walls of said channel member defining inwardly-extending semi-circular contact surfaces in alternating spaced relationship with respect to opposing walls, said contact surfaces being so proportioned as to engage the sides of a circuit card, thereby exerting a retentive force.
Claim 2
Dependent Claim
70 words
A retaining guide for printed circuit cards comprising an elongated channel member having a bottom wall and side walls vertically extending therefrom, said member having a non-linear undulating configuration, said side walls of said channel member defining inwardly-extending semi-circular contact surfaces in alternating spaced relationship with respect to opposing walls, said contact surfaces being so proportioned as to engage the sides of a circuit card, thereby exerting a retentive force.
Claim 3
Dependent Claim
45 words
A channel member in accordance with claim 1 wherein said contact surfaces and the bottom wall are of a substance sufficiently rigid with respect to the flexibility of said card as to constrain said card to distort in following the configuration of said channel member.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |