Patent US4322779A successfully refreshed from Google Patents.
US4322779A
Expired / Lapsed
US
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Photoflood light
Assignee: Dr Ing Bohme and Co
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Filing: 1979-11-27
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Granted: 1982-03-30
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Expires: 1999-11-27
Abstract
Abstract A photoflood light is disclosed having a generally rectangular housing provided with a reflector which is mounted as to be located forwardly of the housing and having additional portions which are pivotable relative to the housing and, when moved to a position of non-use, i.e. storage and/or transport, form together with the housing and the other components a flat generally rectangular body.
Inventors
- 👤 Hermann Bohme
- 👤 Georg Lohse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:11
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; F; F21; F21V; F21V7/00; F21V7/10; F21V7/18
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
116 words
A photoflood light, comprising an elongated housing having an upper face and major surfaces; a reflector element upwardly spaced from said upper face and having a curved cross-section and extending lengthwise of said housing; a lamp mounted within said reflector and extending lengthwise of the same; means for supporting said reflector element and said lamp on said housing; and a pair of two light baffles mounted for tilting movement about pivot axes extending along respective opposite longitudinal edges of said reflector element, to and from a rest position in which they are located at least in parallel with the planes of respective major surfaces of said housing and define with the same a generally rectangular body.
Claim 2
Dependent Claim
116 words
A photoflood light, comprising an elongated housing having an upper face and major surfaces; a reflector element upwardly spaced from said upper face and having a curved cross-section and extending lengthwise of said housing; a lamp mounted within said reflector and extending lengthwise of the same; means for supporting said reflector element and said lamp on said housing; and a pair of two light baffles mounted for tilting movement about pivot axes extending along respective opposite longitudinal edges of said reflector element, to and from a rest position in which they are located at least in parallel with the planes of respective major surfaces of said housing and define with the same a generally rectangular body.
Claim 3
Dependent Claim
54 words
A photoflood light as defined in claim 1; further comprising a substantially U-shaped bracket having a pair of legs pivotable about an axis parallel to the elongation of said lamp, and a bight portion connecting said legs to one another and overlying said lamp when said bracket is pivoted to a rest position thereof.
Claim 4
Dependent Claim
35 words
A photoflood light as defined in claim 2, wherein a plane passing through said axis of said bracket and through the longitudinal axis of said lamp is a plane of symmetry of the photoflood light.
Claim 5
Dependent Claim
26 words
The photoflood light as defined in claim 2, wherein the height of said housing substantially corresponds to the width of said bight portion of said bracket.
Claim 6
Dependent Claim
50 words
The photoflood light as defined in claim 1, further comprising at least one socket arranged to embrace the electrical elements of said lamp for electrical contacting of said lamp and mounted on the longitudinal side of said housing, said socket including a mounting portion for mechanical retention of said lamp.
Claim 7
Dependent Claim
46 words
The photoflood light as defined in claim 5, wherein two sockets are mounted on the longitudinal side of said housings, said sockets are positioned in alignment with the lateral sides of said housing in a locked position thereof, said reflector element is located between said sockets.
Claim 8
Dependent Claim
38 words
The photoflood light as defined in claim 6, wherein said sockets are mounted on the upper face of said housing so as to overlap said reflector element when positioned in alignment with the lateral sides of said housing.
Claim 9
Dependent Claim
25 words
The photoflood light as defined in claim 1, wherein said pivot axes of said light baffles are positioned beneath the longitudinal axis of said lamp.
Claim 10
Dependent Claim
21 words
The photoflood light as defined in claim 6, wherein said pivot axes of said light baffles are affixed to said sockets.
Claim 11
Dependent Claim
37 words
The photoflood light as defined in claim 1, wherein pivotally mounted heat protective shields are provided to cover said light baffles, said heat protective shields being located between said housing and said light baffles in non-use condition.
Claim 12
Dependent Claim
35 words
The photoflood light as defined in claim 10, wherein at least one first spring element is connected to said heat protective shields and said light baffles to bias the latter in the pivoting movement thereof.
Claim 13
Dependent Claim
39 words
The photoflood light as defined in claim 11, wherein at least one second spring element is connected to said light baffles and said heat protective shields to urge said baffles and said heat protective shields to their operating position.
Claim 14
Dependent Claim
26 words
The photoflood light as defined in claim 2, wherein a locking element is provided to limit the pivoting movement of said housing relative to said bracket.
Claim 15
Dependent Claim
26 words
The photoflood light as defined in claim 1, wherein said reflector element is mounted in spring brackets, said spring brackets being rigidly fixed in said housing.
Claim 16
Dependent Claim
17 words
The photoflood light as defined in claim 5, wherein said socket is releasably mounted on said housing.
Claim 17
Dependent Claim
18 words
The photoflood light as defined in claim 6, wherein said two sockets are releasably mounted on said housing.
Claim 18
Dependent Claim
18 words
The photoflood light as defined in claim 16, wherein said sockets are slidably mounted on said upper face.
Claim 19
Dependent Claim
17 words
The photoflood light as defined in claim 16, further including a transparent protective tube surrounding said lamp.
Claim 20
Dependent Claim
18 words
The photoflood light as defined in claim 18, wherein said protective tube is releasably supported in said sockets.
Claim 21
Dependent Claim
17 words
The photoflood light as defined in claim 16, wherein said housing is formed of synthetic plastic material.
Claim 22
Dependent Claim
16 words
The photoflood light as defined in claim 16, wherein said sockets are formed of pressure-cast metal.
References Cited (Backward Citations)
US4141057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-29 | 1985-09-28 | 1986-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-29 | 1989-09-28 | 1990-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-29 | 1993-09-28 | 1994-03-30 | $7700.00 | Window Closed / Lapsed |