Patent US3418906A successfully refreshed from Google Patents.
US3418906A
Expired / Lapsed
US
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Photoflash unit
Assignee: Agfa Gevaert AG
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Filing: 1966-08-30
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Granted: 1968-12-31
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Expires: 1986-08-30
Abstract
No abstract record available.
Inventors
- 👤 Wick Richard
- 👤 Huber Hans-Peter
- 👤 Hennig Fridolin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:36
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/041; G03B15/0431; F; F21; F21K; F21K5/00; F21K5/02; F21K5/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A FLASH UNIT, PARTICULARLY FOR USE WITH MULTIPLE FLASH BULB HOLDERS OF THE TYPE HAVING A PLURALITY OF ANGULARLY SPACED EQUIDISTANT FLASH BULBS, COMPRISING AT LEAST TWO INDEXIBLE COUPLING MEMBERS EACH CONNECTABLE WITH A MULTIPLE FLASH BULB HOLDER TO ROTATE THE SAME; INDEXING MEANS OPERATIVE TO ROTATE AT LEAST ONE OF SAID COUPLING MEMBERS AT A TIME THROUGH INCREMENTS CORRESPONDING TO THE ANGLES BETWEEN SUCCESSIVE FLASH BULBS ON THE HOLDERS CARRIED BY SAID COUPLING MEMBERS; A FLASH CIRCIT FOR FIRING SUCCESSIVE FLASH BULBS OF ONE HOLDER DURING INTERVALS BETWEEN SUCCESSIVE INDEXING MOVEMENTS OF THE RESPECTIVE COUPLING MEMBER, SAID CIRCUIT COMPRISING SWITCH CONTACT MEANS MOVABLE FROM A FIRST TO A SECOND POSITION TO THEREBY CONNECT THE OTHER HOLDER INTO SAID CIRCUIT; AND MOTION TRANSMITTING MEANS FOR MOVING SAID SWITCH CONTACT MEANS TO SECOND POSITION IN RESPONSE TO THAT OPERATION OF SAID INDEXING MEANS WHICH FOLLOWS THE FIRING OF THE LAST UNEXPENDED FLASH BULB OF THE ONE HOLDER.
Claim 2
Dependent Claim
156 words
A FLASH UNIT, PARTICULARLY FOR USE WITH MULTIPLE FLASH BULB HOLDERS OF THE TYPE HAVING A PLURALITY OF ANGULARLY SPACED EQUIDISTANT FLASH BULBS, COMPRISING AT LEAST TWO INDEXIBLE COUPLING MEMBERS EACH CONNECTABLE WITH A MULTIPLE FLASH BULB HOLDER TO ROTATE THE SAME; INDEXING MEANS OPERATIVE TO ROTATE AT LEAST ONE OF SAID COUPLING MEMBERS AT A TIME THROUGH INCREMENTS CORRESPONDING TO THE ANGLES BETWEEN SUCCESSIVE FLASH BULBS ON THE HOLDERS CARRIED BY SAID COUPLING MEMBERS; A FLASH CIRCIT FOR FIRING SUCCESSIVE FLASH BULBS OF ONE HOLDER DURING INTERVALS BETWEEN SUCCESSIVE INDEXING MOVEMENTS OF THE RESPECTIVE COUPLING MEMBER, SAID CIRCUIT COMPRISING SWITCH CONTACT MEANS MOVABLE FROM A FIRST TO A SECOND POSITION TO THEREBY CONNECT THE OTHER HOLDER INTO SAID CIRCUIT; AND MOTION TRANSMITTING MEANS FOR MOVING SAID SWITCH CONTACT MEANS TO SECOND POSITION IN RESPONSE TO THAT OPERATION OF SAID INDEXING MEANS WHICH FOLLOWS THE FIRING OF THE LAST UNEXPENDED FLASH BULB OF THE ONE HOLDER.
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |