Patent US2145407A successfully refreshed from Google Patents.
Patent US4068931A successfully refreshed from Google Patents.
US4068931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector including light filter for photographic use
Assignee: Individual
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Filing: 1976-10-05
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Granted: 1978-01-17
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Expires: 1996-10-05
Abstract
Abstract A filter supporting structure fitted to a reflector and light source for use in photography is shown for positioning the filter medium between the light source for illuminating an object to be photographed and the object itself. The support holds the filter in position before the light source and a reflector associated with the source in a position to permit all of the desired light rays to pass on to the object while the filter is carried in a holder in a position to be spaced apart from the reflector structure so that cooling air can circulate freely around the light source.
Inventors
- 👤 Bill S. Weaks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:02
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/06; G03B15/07; F; F21; F21V; F21V9/00; F21V9/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
238 words
A hood for carrying a light filter for use in photography wherein a source of light is contained within a reflector body to produce light rays that are formed into a beam issuing from a source of light supported in the reflector body and the filter is interposed between the light source and the object being exposed to the reflected rays, comprising a concave reflector body defined by a flaring reflector wall having an edge forming an outlet, the wall being adapted to collect said rays issuing from said source and project a beam of light through said outlet; a hood having an enclosing wall which defines an inlet and outlet opening, said outlet opening being defined by an inwardly projecting peripheral flange on one end of said hood; a filter plate disposed within said hood, a circumferential portion of one side of the plate being in engagement with said flange; means carried by said hood interiorly thereof for engaging the periphery of the other side of said plate and thereby holding said plate against said flange; a plurality of post means carried by said hood near said inlet opening, said post means holding the hood in a position before said reflector to direct said beam toward the outlet end of said hood and to maintain the inlet end of said hood spaced from the outlet edge of said reflector so that air may circulate into the reflector.
Claim 2
Dependent Claim
238 words
A hood for carrying a light filter for use in photography wherein a source of light is contained within a reflector body to produce light rays that are formed into a beam issuing from a source of light supported in the reflector body and the filter is interposed between the light source and the object being exposed to the reflected rays, comprising a concave reflector body defined by a flaring reflector wall having an edge forming an outlet, the wall being adapted to collect said rays issuing from said source and project a beam of light through said outlet; a hood having an enclosing wall which defines an inlet and outlet opening, said outlet opening being defined by an inwardly projecting peripheral flange on one end of said hood; a filter plate disposed within said hood, a circumferential portion of one side of the plate being in engagement with said flange; means carried by said hood interiorly thereof for engaging the periphery of the other side of said plate and thereby holding said plate against said flange; a plurality of post means carried by said hood near said inlet opening, said post means holding the hood in a position before said reflector to direct said beam toward the outlet end of said hood and to maintain the inlet end of said hood spaced from the outlet edge of said reflector so that air may circulate into the reflector.
Claim 3
Dependent Claim
36 words
A structure as in claim 1 wherein said means for holding said plate against said flange includes at least one angle clip having two arms and means releasably securing one of the arms to said hood.
Claim 4
Dependent Claim
28 words
A structure as in claim 2 wherein said securing means is a fastener extending through said arm and through the adjacent portion of the wall of said hood.
Claim 5
Dependent Claim
63 words
A structure as in claim 1 wherein the inlet end of said hood has a peripheral outwardly extending lip and wherein said posts overlie said lip, the posts being constructed of a spring metal and being secured at one end to the exterior of the wall of the hood and having opposite ends forming clips which are releasably connected to said reflector edge.
Claim 6
Dependent Claim
180 words
A hood for supporting a light filter in front of a concave reflector body, said hood comprising a continuous side wall forming an inlet end and an outlet end disposed on a common axis, said outlet end terminating in a peripheral flanges which is integral with said side wall and which projects toward said axis; a filter plate disposed within said hood and having a circumferential portion of one of its sides in engagement with said flange; a plurality of circumferentially spaced apart angle clips releasably secured to the inner surface of said side wall adjacent said flange and engaging the other side of said filter plate to thereby hold said filter plate against said flange; and a plurality of circumferentially spaced apart posts carried by said side wall adjacent said inlet end, each of said posts being constructed of a spring metal and extending away from said inner end of said hood in the direction of sid axis and each of said posts terminating in a C-shaped clip which can be snapped over the edge of a reflector body.
Claim 7
Dependent Claim
180 words
A hood for supporting a light filter in front of a concave reflector body, said hood comprising a continuous side wall forming an inlet end and an outlet end disposed on a common axis, said outlet end terminating in a peripheral flanges which is integral with said side wall and which projects toward said axis; a filter plate disposed within said hood and having a circumferential portion of one of its sides in engagement with said flange; a plurality of circumferentially spaced apart angle clips releasably secured to the inner surface of said side wall adjacent said flange and engaging the other side of said filter plate to thereby hold said filter plate against said flange; and a plurality of circumferentially spaced apart posts carried by said side wall adjacent said inlet end, each of said posts being constructed of a spring metal and extending away from said inner end of said hood in the direction of sid axis and each of said posts terminating in a C-shaped clip which can be snapped over the edge of a reflector body.
Claim 8
Dependent Claim
47 words
A hood as in claim 5 wherein each of said posts includes a strip having opposite end portions lying in spaced apart parallel planes, one of said end portions engaging and being attached to said hood side wall and the other end portion carrying said C-shaped clip.
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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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |