US3736015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding mechanism for a camera
Assignee: Eastman Kodak Co
•
Filing: 1971-04-30
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Granted: 1973-05-29
•
Expires: 1991-04-30
Abstract
Abstract A mechanism for rotating a film cartridge wind-up core which has a gear attached thereto includes a manually rotatable ring gear having internal teeth engageable with the cartridge gear for effecting the rotation of the cartridge gear. The ring gear can be directly engaged with the cartridge gear, or coupled thereto via a gear train.
Inventors
- 👤 J J Dierks
- 👤 J R Stoneham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/02; G03B1/04; G03B1/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
In a camera adapted to receive strip film and a film winding gear and to advance such received film by means of a winding operation; the improvement comprising: a ring gear having internal teeth and an external periphery; means mounting said ring gear in said camera at a location such that said internal teeth are cooperable with said film winding gear received in said camera; for rotating said winding gear; and means mounting said ring gear in said camera at a location such that said external periphery is manually engageable for rotating said ring gear.
Claim 2
Dependent Claim
95 words
In a camera adapted to receive strip film and a film winding gear and to advance such received film by means of a winding operation; the improvement comprising: a ring gear having internal teeth and an external periphery; means mounting said ring gear in said camera at a location such that said internal teeth are cooperable with said film winding gear received in said camera; for rotating said winding gear; and means mounting said ring gear in said camera at a location such that said external periphery is manually engageable for rotating said ring gear.
Claim 3
Dependent Claim
16 words
A camera according to claim 1 wherein the external periphery of said ring gear is serrated.
Claim 4
Dependent Claim
40 words
A camera according to claim 1 further comprising a housing, means in said housing for holding said ring gear and an opening in said housing through which the periphery of said ring gear protrudes for facilitating the manual engagement thereof.
Claim 5
Dependent Claim
99 words
A camera adapted to receive a film cartridge of the type having a rotatable film winding core and a winding gear drivingly coupled to the core; said camera comprising: means for receiving a cartridge so that the winding gear is rotatable in a first plane when the cartridge is received in said camera; and a ring gear having internal teeth engageable with the winding gear of a received cartridge, said ring gear being rotatable in a plane inclined relative to said first plane for facilitating insertion and removal of a cartridge in a direction parallel to said first plane.
Claim 6
Dependent Claim
99 words
A camera adapted to receive a film cartridge of the type having a rotatable film winding core and a winding gear drivingly coupled to the core; said camera comprising: means for receiving a cartridge so that the winding gear is rotatable in a first plane when the cartridge is received in said camera; and a ring gear having internal teeth engageable with the winding gear of a received cartridge, said ring gear being rotatable in a plane inclined relative to said first plane for facilitating insertion and removal of a cartridge in a direction parallel to said first plane.
Claim 7
Dependent Claim
23 words
A camera according to claim 4 wherein said ring gear has an external periphery which is manually engageable for rotating said ring gear.
Claim 8
Dependent Claim
65 words
A camera adapted to receive a film cartridge having a wind-up core and a gear attached to the core for rotating the core, said camera comprising: means for receiving such a cartridge; and a ring gear having internal teeth for drivingly engaging the gear of a received cartridge, said ring gear being rotatable for rotating the gear of a received cartridge to rotate the core.
Claim 9
Dependent Claim
65 words
A camera adapted to receive a film cartridge having a wind-up core and a gear attached to the core for rotating the core, said camera comprising: means for receiving such a cartridge; and a ring gear having internal teeth for drivingly engaging the gear of a received cartridge, said ring gear being rotatable for rotating the gear of a received cartridge to rotate the core.
Claim 10
Dependent Claim
92 words
In a camera adapted to receive strip film and to advance such received film by means of a winding operation; the improvement comprising: a ring gear having internal teeth, said ring gear being mounted in said camera at a location such that said internal teeth are cooperable with a film winding gear; a film frame counting mechanism; and a third gear for actuating said film frame counting mechanism, said third gear being coupled to said ring gear and rotatable in response to rotation of said ring gear for actuating said counting mechanism.
Claim 11
Dependent Claim
92 words
In a camera adapted to receive strip film and to advance such received film by means of a winding operation; the improvement comprising: a ring gear having internal teeth, said ring gear being mounted in said camera at a location such that said internal teeth are cooperable with a film winding gear; a film frame counting mechanism; and a third gear for actuating said film frame counting mechanism, said third gear being coupled to said ring gear and rotatable in response to rotation of said ring gear for actuating said counting mechanism.
References Cited (Backward Citations)
US2975990A
Cited
US3459110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |