Patent US3926490A successfully refreshed from Google Patents.
US3926490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking bar for printed wiring card file
Assignee: AG Communication Systems Corp
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Filing: 1973-04-18
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Granted: 1975-12-16
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Expires: 1993-04-18
Abstract
Abstract A locking bar arrangement for positively retaining a plurality of printed wiring cards in their inserted position in a printed wiring card file. A locking bar is positioned transversely of the wiring cards across the front of the file and is retained in a position in a first embodiment by a cammed lever and linkage and in a second embodiment by spring fingers.
Inventors
- 👤 Ansano Bertellotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:37
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1408
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
Apparatus for retaining horizontal arrays of printed wiring cards in a printed wiring card file, said apparatus comprising: a locking bar disposed transversely across said printed wiring card array, said locking bar having disposed on the card engaging surface a layer of resilient material; retaining means affixed to said printed wiring card file and adapted to engage each end of said locking bar; whereby said locking bar is held under compression against the edges of said printed wiring cards when said retaining means is engaged.
Claim 2
Dependent Claim
85 words
Apparatus for retaining horizontal arrays of printed wiring cards in a printed wiring card file, said apparatus comprising: a locking bar disposed transversely across said printed wiring card array, said locking bar having disposed on the card engaging surface a layer of resilient material; retaining means affixed to said printed wiring card file and adapted to engage each end of said locking bar; whereby said locking bar is held under compression against the edges of said printed wiring cards when said retaining means is engaged.
Claim 3
Dependent Claim
50 words
Apparatus as recited in claim 1 wherein said retaining means comprises first and second spring finger elements extending outwardly from said wiring card file, engaging the opposite ends of said locking bar, and being biased such as to provide inward compression of said locking bar against said printed wiring cards.
Claim 4
Dependent Claim
114 words
Apparatus as recited in claim 1 wherein said retaining means comprises first and second L-shaped locking levers pivotally mounted at the heel portion thereof to said wiring card file at the ends of said wiring card array, and rotatable in a vertical plane about said mounting, first and second tie straps pivotally mounted at one end to the toe portions of said locking levers, and engaging said locking bar at the other ends thereof whereby rotation of said locking levers about their pivotal mountings in one direction drives said locking bar inwardly in compression against said printed wiring cards and rotation in the opposite direction drives said locking bar outwardly and relieves said compression.
Claim 5
Dependent Claim
19 words
Apparatus as recited in claim 3 wherein said tie straps are in free floating engagement with said locking bar.
Claim 6
Dependent Claim
50 words
Apparatus as recited in claim 3 further including a stop pivotally mounted to each said tie strap intermediate said locking bar and said locking lever such as to engage said locking lever and retain said locking bar in a withdrawn position outward from and above said printed wiring card array.
References Cited (Backward Citations)
US549212A
Cited
US1349527A
Cited
US630505A
Cited
US1023297A
Cited
US1450084A
Cited
US1866180A
Cited
US2005099A
Cited
US2676866A
Cited
US2958014A
Cited
US2987358A
Cited
US3360689A
Cited
US3371974A
Cited
US3437365A
Cited
US3476258A
Cited
US3521939A
Cited
US3644868A
Cited
US3760952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |