US4582410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripod type slave unit
Assignee: ASANUMA CAMERA MECHANICAL LABORATORY and Co Ltd
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Filing: 1985-05-30
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Granted: 1986-04-15
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Expires: 2005-05-30
Abstract
Abstract A tripod type slave unit comprises a shoe type mount for carrying detachably a mounting leg for strobo device and the like on a portion of a tripod device detachable to an accessory mount of a camera, a control terminal connected to a switching terminal for strobo device and the like carried on the shoe type mount, and a switching circuit connected between both terminals of said control terminal to shortcircuit both the terminals temporarily by means of a photosensor for detecting a leading edge of a flash of a main light source.
Inventors
- 👤 Keiichi Niwaya
- 👤 Asanuma Camera Mechanical Laboratory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:45
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A tripod type slave unit comprising a shoe type mount for carrying a mounting leg for strobo device and the like detachably to a portion of a tripod device detachable to an accessory mount of a camera, a control terminal for connection to a switching terminal of the strobo device carried on the shoe type mount, and a switching circuit connected between both terminals of the control terminal and shortcircuits both the terminals temporarily by means of a photosensor for detecting the leading edge of flash of a main light source.
Claim 2
Dependent Claim
91 words
A tripod type slave unit comprising a shoe type mount for carrying a mounting leg for strobo device and the like detachably to a portion of a tripod device detachable to an accessory mount of a camera, a control terminal for connection to a switching terminal of the strobo device carried on the shoe type mount, and a switching circuit connected between both terminals of the control terminal and shortcircuits both the terminals temporarily by means of a photosensor for detecting the leading edge of flash of a main light source.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |