Patent US3657069A successfully refreshed from Google Patents.
US4023031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: COLORTRAN Inc
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Filing: 1975-10-07
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Granted: 1977-05-10
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Expires: 1995-10-07
Abstract
Abstract A luminaire consisting of a Fresnel spot light combined with a studio flood-light arranged back-to-back so that when the spot-light is in use and the flood-light is inactive, displacement of the lamp carriage of the spot-light can be accommodated by passing it through an opening in the main reflector of the inactive flood-light, or by displacing the main reflector of the flood-light, thus saving space.
Inventors
- 👤 Stanley Herbert Storey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:19
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/02; F21V17/00; F21V17/02; F21V5/00; F21V5/04; F21V5/045; F21V14/00; F21V14/02; F21V14/04; F21V19/04; F21W; F21W2131/00; F21W2131/40; F21W2131/406
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
143 words
A luminaire comprising in combination a Fresnel spot-light assembly and a flood-light assembly, said luminaire including a housing having a Fresnel lens at one end and a floodlight diffuser at the other end, said Fresnel assembly including a carriage, a reflector mounted on said carriage and movable along a focusing path toward and away from said Fresnel lens for focusing the Fresnel spot-light and a lamp mounted on said carriage between said lens and reflector, said flood-light assembly including a main reflector normally mounted in operative position relative to said flood light diffuser and a flood-light lamp mounted between said main reflector and said flood-light diffuser, said focusing path extending through the operative position of said main reflector, and wherein said main reflector is at least in part movable to accommodate the movement of said Fresnel carriage and reflector along said focusing path.
Claim 2
Dependent Claim
143 words
A luminaire comprising in combination a Fresnel spot-light assembly and a flood-light assembly, said luminaire including a housing having a Fresnel lens at one end and a floodlight diffuser at the other end, said Fresnel assembly including a carriage, a reflector mounted on said carriage and movable along a focusing path toward and away from said Fresnel lens for focusing the Fresnel spot-light and a lamp mounted on said carriage between said lens and reflector, said flood-light assembly including a main reflector normally mounted in operative position relative to said flood light diffuser and a flood-light lamp mounted between said main reflector and said flood-light diffuser, said focusing path extending through the operative position of said main reflector, and wherein said main reflector is at least in part movable to accommodate the movement of said Fresnel carriage and reflector along said focusing path.
Claim 3
Dependent Claim
58 words
A luminaire as defined in claim 1, said main reflector including a first fixed portion and a second movable portion together defining a generally concave reflecting surface, and wherein said movable portion is displaceable relative to said fixed portion so as to provide an opening in said surface to permit said Fresnel carriage and reflector to move therethrough.
Claim 4
Dependent Claim
17 words
A luminaire as defined in claim 2, wherein said movable portion is displaceable toward said flood-light diffuser.
Claim 5
Dependent Claim
44 words
A luminaire as defined in claim 1, wherein said main reflector is swingably mounted in said housing from a first position where it impedes the movement of said Fresnel carriage and reflector along said focusing path to a second position displaced from said path.
Claim 6
Dependent Claim
18 words
A luminaire as defined in claim 4, said Fresnel reflector further including means for displacing said main reflector.
Claim 7
Dependent Claim
55 words
A luminaire as defined in claim 5, said main reflector being spring biased towards said first position, and wherein said displacing means is at least one roller carried by said Fresnel reflector adapted to bear against and effect swinging movement of said main reflector against said spring bias during focusing movement of said Fresnel assembly.
Claim 8
Dependent Claim
52 words
A luminaire as defined in claim 1, said floodlight assembly including a lamp tray having said flood-light lamp mounted therein, and wherein said lamp tray forms part of said housing and is movable from a closed position to an open position whereby said flood-light lamp may be changed without moving said diffuser.
Claim 9
Dependent Claim
24 words
A luminaire as defined in claim 7, wherein said lamp tray is pivotably mounted in said housing and is swingable downwardly beneath said diffuser.
References Cited (Backward Citations)
US3267274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |