US3335651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism for rotatable flash attachment
Assignee: Eastman Kodak Co
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Filing: 1965-03-10
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Granted: 1967-08-15
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Expires: 1985-03-10
Abstract
No abstract record available.
Inventors
- 👤 Francis A Williams
- 👤 Franklin D Kottler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:16
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/041; G03B15/0431; G03B17/00; G03B17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
FOR USE WITH A ROLL FILM CAMERA HAVING FILM ADVANCING MEANS INCLUDING A ROTATABLE DRIVE SPOOL ONTO WHICH EXPOSED FRAMES OF ROLL FILM ARE WOUND, A FLASH DRIVE MECHANISM COMPRISING: SOCKET MEANS TO RECEIVE A DETACHABLE FLASH ATTACHMENT CONTAINING A PLURALITY OF FLASH BULBS, THE SOCKET MEANS BEING MOVABLE TO MOVE THE ATTACHMENT THEREWITH FOR SEQUENTIALLY PLACING THE FLASH BULBS IN OPERATIVE POSITION, A SLIP CLUTCH ASSEMBLY INTERCONNECTING THE FILM ADVANCE DRIVE SPOOL AND SOCKET MEANS TO MOVE THE SOCKET MEANS IN RESPONSE TO ROTATION OF THE DRIVE SPOOL, AND ESCAPEMENT MEANS TO STOP MOVEMENT OF THE SOCKET MEANS AFTER THE SOCKET MEANS HAS MOVED A PREDETERMINED AMOUNT TO PLACE A FLASH BULB IN OPERATIVE POSITION, WHILE PERMITTING FURTHER ROTATION OF THE DRIVE SPOOL AN INDETERMINANT AMOUNT TO COMPLETE FILM ADADVANCEMENT.
Claim 2
Dependent Claim
131 words
FOR USE WITH A ROLL FILM CAMERA HAVING FILM ADVANCING MEANS INCLUDING A ROTATABLE DRIVE SPOOL ONTO WHICH EXPOSED FRAMES OF ROLL FILM ARE WOUND, A FLASH DRIVE MECHANISM COMPRISING: SOCKET MEANS TO RECEIVE A DETACHABLE FLASH ATTACHMENT CONTAINING A PLURALITY OF FLASH BULBS, THE SOCKET MEANS BEING MOVABLE TO MOVE THE ATTACHMENT THEREWITH FOR SEQUENTIALLY PLACING THE FLASH BULBS IN OPERATIVE POSITION, A SLIP CLUTCH ASSEMBLY INTERCONNECTING THE FILM ADVANCE DRIVE SPOOL AND SOCKET MEANS TO MOVE THE SOCKET MEANS IN RESPONSE TO ROTATION OF THE DRIVE SPOOL, AND ESCAPEMENT MEANS TO STOP MOVEMENT OF THE SOCKET MEANS AFTER THE SOCKET MEANS HAS MOVED A PREDETERMINED AMOUNT TO PLACE A FLASH BULB IN OPERATIVE POSITION, WHILE PERMITTING FURTHER ROTATION OF THE DRIVE SPOOL AN INDETERMINANT AMOUNT TO COMPLETE FILM ADADVANCEMENT.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |