US3722387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge especially for film
Assignee: Filmfabrik Wolfen VEB
•
Filing: 1971-07-12
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Granted: 1973-03-27
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Expires: 1991-07-12
Abstract
Abstract The outer wall of a cartridge containing photographic film or the like is combined with, or assembled with the aid of, at least one indicator pin. The head of the pin is so shaped, or otherwise so arranged, as to cause selective responses, dependent on the contents of the cartridge. The pin structure is fastened by resilient action.
Inventors
- 👤 B Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:46
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
In a film or tape cartridge comprising at least two units and means fastening the units together, the imprOvement comprising a fastener functioning both to fasten together the two units and to designate the type of film or tape in the cartridge, the fastener including a pin having a head and a shank, an abutment formed on the shank, means for engaging the abutment and thereby locking with the pin, the shank of the pin extending through at least one of the units and the head of the pin being located outside the cartridge, said engaging means being connected to at least one other of the units, the head of the pin being coded by shape, color or marking to designate the type of film or tape in the cartridge.
Claim 2
Dependent Claim
130 words
In a film or tape cartridge comprising at least two units and means fastening the units together, the imprOvement comprising a fastener functioning both to fasten together the two units and to designate the type of film or tape in the cartridge, the fastener including a pin having a head and a shank, an abutment formed on the shank, means for engaging the abutment and thereby locking with the pin, the shank of the pin extending through at least one of the units and the head of the pin being located outside the cartridge, said engaging means being connected to at least one other of the units, the head of the pin being coded by shape, color or marking to designate the type of film or tape in the cartridge.
Claim 3
Dependent Claim
24 words
In a film or tape cartridge improvement according to claim 1, in which the abutment is formed on a free end of the shank.
Claim 4
Dependent Claim
43 words
In a film or tape cartridge improvement according to claim 1, in which the shank is longitudinally divided in the form of at least two arms, and the abutment comprises a barb at the free end of at least one of the arms.
Claim 5
Dependent Claim
69 words
In a film or tape cartridge improvement according to claim 1, in which the means for engaging the abutment comprises a second pin, the second pin having a shank longitudinally divided in the form of at least two arms, said engaging means comprising an abutment formed at the free end of at least one of the arms of the second pin for engaging the abutment on the first pin.
Claim 6
Dependent Claim
40 words
In a film or tape cartridge improvement according to claim 1, in which the means for engaging the abutment comprises the periphery of an aperture defined through one of the units and through which the shank of the pin extends.
References Cited (Backward Citations)
US2238238A
Cited
US2195999A
Cited
US2466524A
Cited
US3139789A
Cited
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Cited
US3490348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |