Patent US4097166A successfully refreshed from Google Patents.
US4097166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch for film cartridge
Assignee: TCI ACQUISITION CORP
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Filing: 1976-09-20
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Granted: 1978-06-27
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Expires: 1996-09-20
Abstract
Abstract A latch for positively retaining a cartridge or similar article to a complimentary cartridge utilizing structure. The latch includes a rotatably mounted plate having upstanding latch pins thereon. A tab extends laterally from each latch pin to engage complimentary apertures formed in the cartridge.
Inventors
- 👤 Reid J. Stava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:54
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; Y; Y10; Y10T; Y10T403/00; Y10T403/59; Y10T403/60; Y10T403/602
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
188 words
A latch detachably engageable with a film strip cartridge of the type having at least a pair of side walls and an aperture in each of said side walls comprising: a plate portion rotatably supported on a support means and having an axis of rotation substantially normal to the plate; a first tab located on a first area of said plate; a second tab located on a second area of said plate, opposite from said first area; said tabs facing in opposite directions; at least first and second spaced, opposed, parallel walls defining a cartridge restraint means; said first sidewall having a first access port for said first tab; said second sidewall having a second access port for said second tab; whereby rotation of said plate portion in a first direction causes said first tab to enter said first access port, and said second tab to enter said second access port; and rotation of said plate portion in the second direction, opposite from said first direction, causes said first tab to retract from said first access port, and said second tab to retract from said second access port.
Claim 2
Dependent Claim
188 words
A latch detachably engageable with a film strip cartridge of the type having at least a pair of side walls and an aperture in each of said side walls comprising: a plate portion rotatably supported on a support means and having an axis of rotation substantially normal to the plate; a first tab located on a first area of said plate; a second tab located on a second area of said plate, opposite from said first area; said tabs facing in opposite directions; at least first and second spaced, opposed, parallel walls defining a cartridge restraint means; said first sidewall having a first access port for said first tab; said second sidewall having a second access port for said second tab; whereby rotation of said plate portion in a first direction causes said first tab to enter said first access port, and said second tab to enter said second access port; and rotation of said plate portion in the second direction, opposite from said first direction, causes said first tab to retract from said first access port, and said second tab to retract from said second access port.
Claim 3
Dependent Claim
25 words
The latch claimed in claim 1, further comprising; a resilient spring biasing means to resiliently urge said plate portion to rotate in said first direction.
Claim 4
Dependent Claim
17 words
The latch claimed in claim 1, wherein said tabs have a ramp surface and a lock surface.
Claim 5
Dependent Claim
19 words
The latch claimed in claim 3, wherein said ramp surface and said lock surface are inclined toward one another.
Claim 6
Dependent Claim
198 words
A latch detachably engageable with a film strip cartridge of the type having at least a pair of sidewalls and an aperture in each of said side walls comprising: a plate portion rotatably supported on a support means and having an axis of rotation substantially normal to the plate; a first latch pin located on a first area of said plate; a second latch pin located on a second area of said plate, opposite from said first area; a tab extending laterally outward from each latch pin; said tabs facing in opposite directions; at least first and second spaced, opposed, parallel walls defining a cartridge restraint means; said first sidewall having a first access port for said first tab; said second sidewall having a second access port for said second tab; whereby rotation of said plate portion in a first direction causes said first tab to enter said first access port, and said second tab to enter said second access port; and rotation of said plate portion in the second direction, opposite from said first direction, causes said first tab to retract from said first access port, and said second tab to retract from said second access port.
Claim 7
Dependent Claim
198 words
A latch detachably engageable with a film strip cartridge of the type having at least a pair of sidewalls and an aperture in each of said side walls comprising: a plate portion rotatably supported on a support means and having an axis of rotation substantially normal to the plate; a first latch pin located on a first area of said plate; a second latch pin located on a second area of said plate, opposite from said first area; a tab extending laterally outward from each latch pin; said tabs facing in opposite directions; at least first and second spaced, opposed, parallel walls defining a cartridge restraint means; said first sidewall having a first access port for said first tab; said second sidewall having a second access port for said second tab; whereby rotation of said plate portion in a first direction causes said first tab to enter said first access port, and said second tab to enter said second access port; and rotation of said plate portion in the second direction, opposite from said first direction, causes said first tab to retract from said first access port, and said second tab to retract from said second access port.
Claim 8
Dependent Claim
25 words
The latch claimed in claim 5, further comprising; a resilient spring biasing means to resiliently urge said plate portion to rotate in said first direction.
Claim 9
Dependent Claim
17 words
The latch claimed in claim 5, wherein said tabs have a ramp surface and a lock surface.
Claim 10
Dependent Claim
19 words
The latch claimed in claim 7, wherein said ramp surface and said lock surface are inclined toward one another.
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) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |