Patent US2640774A successfully refreshed from Google Patents.
Patent US3763366A successfully refreshed from Google Patents.
US3763366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic strobe light adapter
Assignee: Individual
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Filing: 1971-11-15
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Granted: 1973-10-02
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Expires: 1991-11-15
Abstract
Abstract An adapter which can be removably fitted over a photographic flash cube or strobe unit, and which has spaced portions engageable with opposite sides of the cube or strobe unit to locate the adapter relative thereto, with the adapter being constructed to block off a predetermined part but not all of the light emitted by the cube or strobe unit in a relation adapting the cube for proper illumination of a particular subject at a particular distance from the camera.
Inventors
- 👤 G Bahnsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:35
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517; G03B2215/055; G03B2215/0553
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
A light control adapter for use with a photographic strobe light flash unit which has a generally rectangular top wall and a plurality of side walls and is constructed to emit a flash in a predetermined direction for instantaneously illuminating a photographic subject; said adapter being shaped to fit closely over the flash unit and having a generally rectangular top wall and four side walls connected at their upper edges to said top wall and having their side edges free of direct attachment to the corresponding edges of adjacent side walls to form a slit therebetween, said side walls projecting downwardly therefrom essentially perpendicular to said top wall, said side walls of one pair being spaced apart farther than the side walls of the other pair so that the adapter fits closely and frictionally on the generally rectangularly shaped strobe light flash unit, one opposing pair of side walls extending downwardly beyond the side walls of the other pair, said side walls have flaring camming portions near their lower edges which are engageable with said flash unit in a relation deflecting opposite ones of said side walls relatively apart against their resilience as said adapter is moved onto said flash unit, and at least one of said side walls being formed of opaque material and having an aperture generally at the center of its horizontal width to pass only a predetermined reduced portion but not all of the light from said unit to a photographic subject.
Claim 2
Dependent Claim
246 words
A light control adapter for use with a photographic strobe light flash unit which has a generally rectangular top wall and a plurality of side walls and is constructed to emit a flash in a predetermined direction for instantaneously illuminating a photographic subject; said adapter being shaped to fit closely over the flash unit and having a generally rectangular top wall and four side walls connected at their upper edges to said top wall and having their side edges free of direct attachment to the corresponding edges of adjacent side walls to form a slit therebetween, said side walls projecting downwardly therefrom essentially perpendicular to said top wall, said side walls of one pair being spaced apart farther than the side walls of the other pair so that the adapter fits closely and frictionally on the generally rectangularly shaped strobe light flash unit, one opposing pair of side walls extending downwardly beyond the side walls of the other pair, said side walls have flaring camming portions near their lower edges which are engageable with said flash unit in a relation deflecting opposite ones of said side walls relatively apart against their resilience as said adapter is moved onto said flash unit, and at least one of said side walls being formed of opaque material and having an aperture generally at the center of its horizontal width to pass only a predetermined reduced portion but not all of the light from said unit to a photographic subject.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |