Patent US3828495A successfully refreshed from Google Patents.
Patent US4006489A successfully refreshed from Google Patents.
US4006489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film rewinder mountable on camera
Assignee: Canon Inc
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Filing: 1975-05-22
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Granted: 1977-02-01
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Expires: 1995-05-22
Abstract
Abstract A camera which permits mounting of an electric film rewinding device and which is provided with a compartment for inserting a film containing magazine. In the wall of the compartment, there is an opening which is provided with means for mounting and dismounting a manual film rewinding device in addition to electric rewinding device mounting means arranged at the same opening, so that the electric or manual film rewinding device can be interchangeably mounted on and detached from the camera.
Inventors
- 👤 Hiroshi Aizawa
- 👤 Tomonori Iwashita
- 👤 Tadahide Fukushima
- 👤 Yukio Iura
- 👤 Masanori Uchidoi
- 👤 Susumu Kozuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:08
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/02; G03B1/04; G03B1/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
Camera apparatus comprising a housing having an exterior surface and an interior surface, said housing forming a compartment for a film magazine, said housing having a film winding hole therein extending from the exterior surface to the interior surface and opening into said compartment, means selectively connectable to said housing and insertable through said film rewinding hole into said compartment for rewinding the film in a film magazine, said means comprising a manual rewinding device and an electrically operated rewinding device, each of said manual rewinding device and electrically operated rewinding device comprising a rewinding shaft for selectively extending through said film rewinding hole and a rewind coupling part on the end of each said rewinding shaft capable of being located within said compartment and arranged to be releasably connected to the film magazine.
Claim 2
Dependent Claim
134 words
Camera apparatus comprising a housing having an exterior surface and an interior surface, said housing forming a compartment for a film magazine, said housing having a film winding hole therein extending from the exterior surface to the interior surface and opening into said compartment, means selectively connectable to said housing and insertable through said film rewinding hole into said compartment for rewinding the film in a film magazine, said means comprising a manual rewinding device and an electrically operated rewinding device, each of said manual rewinding device and electrically operated rewinding device comprising a rewinding shaft for selectively extending through said film rewinding hole and a rewind coupling part on the end of each said rewinding shaft capable of being located within said compartment and arranged to be releasably connected to the film magazine.
Claim 3
Dependent Claim
86 words
A camera, as set forth in claim 1, wherein said film rewinding hole has an internal thread and a light shielding member lining said hole inwardly of said internal thread, said manual rewinding device comprises a plug-like member having an external thread arranged to engage said internal thread on said film rewinding hole and a cylindrical part arranged to engage with said light shielding member, said rewinding shaft of said manual rewinding device extending through said plug-like member into said compartment upon connection to said housing.
Claim 4
Dependent Claim
46 words
A camera, as set forth in claim 1, wherein said electrically operated rewinding device comprises a casing attachable to said housing, a screw mounted in said casing and arranged to secure said casing to said housing at a location spaced laterally from said film rewinding hole.
Claim 5
Dependent Claim
79 words
A camera, as set forth in claim 3, wherein said film rewinding hole has an internal thread and a light shielding member lining said hole inwardly of said internal thread, said electrically operated winding device comprises a plug-like member, said rewinding shaft of said electrically operated rewinding device extending through said plug-like member, said plug-like member comprising a coupling part extending through said internal thread and disposed in engagement with said light shielding member upon connection to said housing.
Claim 6
Dependent Claim
63 words
A camera, as set forth in claim 4, wherein an electric motor is located within said casing, a worm located within said casing and connected to said motor for rotation thereby, a worm wheel located within said casing and mounted on said rewinding shaft of said electrically operated rewinding device, and clutch means for operatively engaging said rewinding shaft and said electric motor.
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) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |