US3767908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic flash unit with flash tube ignition circuit mounted on back of reflector
Assignee: Robert Bosch GmbH
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Filing: 1972-04-19
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Granted: 1973-10-23
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Expires: 1992-04-19
Abstract
Abstract The outside surface of the reflector has a rib with a recess for holding the ignition coil and two projecting tongues for retaining the ignition capacitor. Further, two lugs extend from the outside surface of the reflector for receiving a rubber band which extends from one lug to the other and also encompasses the ignition coil and capacitor, thereby retaining same in a fixed position relative to the reflector.
Inventors
- 👤 K Ackermann
- 👤 S Uecker
- 👤 R Socha
- 👤 H Reiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:10
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B2215/00; G03B2215/05; G03B2215/0564; G03B2215/0578; G03B2215/0582
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
147 words
Electronic flash unit comprising, in combination, a reflector having an inside and an outside surface; a flash tube mounted in said reflector; and an ignition circuit for igniting said flash tube, said ignition circuit having a first and second ignition circuit element mounted on said outside surface of said reflector, said reflector having a rib integrally connected with said outside surface, said rib having at least one recess for retaining said first ignition circuit element in a fixed position relative to said reflector, said outside surface of said reflector further having at least one projection for retaining said second ignition circuit element in a fixed position relative to said reflector; further comprising a first and second lug rigidly connected with said outside surface of said reflector and elastic retaining means extending from said first to said second lug and encompassing said first and second ignition circuit elements.
Claim 2
Dependent Claim
147 words
Electronic flash unit comprising, in combination, a reflector having an inside and an outside surface; a flash tube mounted in said reflector; and an ignition circuit for igniting said flash tube, said ignition circuit having a first and second ignition circuit element mounted on said outside surface of said reflector, said reflector having a rib integrally connected with said outside surface, said rib having at least one recess for retaining said first ignition circuit element in a fixed position relative to said reflector, said outside surface of said reflector further having at least one projection for retaining said second ignition circuit element in a fixed position relative to said reflector; further comprising a first and second lug rigidly connected with said outside surface of said reflector and elastic retaining means extending from said first to said second lug and encompassing said first and second ignition circuit elements.
Claim 3
Dependent Claim
17 words
An arrangement as set forth in claim 1, wherein said elastic retaining means is a rubber band.
Claim 4
Dependent Claim
115 words
ElectroniC flash unit comprising, in combination, a reflector having an inside and an outside surface; a flash tube mounted in said reflector; an ignition circuit for igniting said flash tube, said ignition circuit having an ignition capacitor and an ignition coil; a rib integrally connected with said outside surface of said reflector for retaining said ignition coil in a fixed position relative to said reflector; a projection on said outside surface of said reflector for retaining said ignition capacitor in a fixed position relative to said reflector; two lugs rigidly connected with the outside surface of said reflector; and elastic retaining means extending between said lugs and encompassing said ignition capacitor and said ignition coil.
Claim 5
Dependent Claim
115 words
ElectroniC flash unit comprising, in combination, a reflector having an inside and an outside surface; a flash tube mounted in said reflector; an ignition circuit for igniting said flash tube, said ignition circuit having an ignition capacitor and an ignition coil; a rib integrally connected with said outside surface of said reflector for retaining said ignition coil in a fixed position relative to said reflector; a projection on said outside surface of said reflector for retaining said ignition capacitor in a fixed position relative to said reflector; two lugs rigidly connected with the outside surface of said reflector; and elastic retaining means extending between said lugs and encompassing said ignition capacitor and said ignition coil.
Claim 6
Dependent Claim
17 words
An arrangement as set forth in claim 3, wherein said elastic retaining means is a rubber band.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |