US4918579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for iluminating an environment which operates below normal ambient temperature
Assignee: LESS LIGHTING Ltd A CORP OF UNITED KINGDOM
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Filing: 1989-04-24
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Granted: 1990-04-17
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Expires: 2009-04-24
Abstract
Abstract Apparatus for illuminating an environment which operates below normal ambient temperature, comprising one or more strands of fibre optic light transmitters which extend from within the environment to a point outside it, a light emitting first part of each fibre optic being location within said environment, and means for delivering light into a second part of said fibre optic strand or strands outside said environment.
Inventors
- 👤 Derek N. Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:03
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; F; F25; F25D; F25D27/00; G02B6/24; G02B6/42; G02B6/4298
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
119 words
Apparatus for illuminating an environment which operates below normal ambient temperature comprising an enclosure having an interior adapted to house product at below normal ambient temperatures, means for creating below normal ambient temperature within said enclosure interior, means for indiscriminately illuminating said enclosure interior with noninformative light, said indiscriminate illuminating means including at least one fibre optic light transmitter strand, said fibre optic light transmitter strand extending from within said enclosure interior to a point outside said enclosure interior, a light emitting first part of said fibre optic light transmitter strand being located within said enclosure interior, and means for delivering light into a second part of said fibre optic light transmitter strand located outside of said enclosure interior.
Claim 2
Dependent Claim
119 words
Apparatus for illuminating an environment which operates below normal ambient temperature comprising an enclosure having an interior adapted to house product at below normal ambient temperatures, means for creating below normal ambient temperature within said enclosure interior, means for indiscriminately illuminating said enclosure interior with noninformative light, said indiscriminate illuminating means including at least one fibre optic light transmitter strand, said fibre optic light transmitter strand extending from within said enclosure interior to a point outside said enclosure interior, a light emitting first part of said fibre optic light transmitter strand being located within said enclosure interior, and means for delivering light into a second part of said fibre optic light transmitter strand located outside of said enclosure interior.
Claim 3
Dependent Claim
18 words
Apparatus as claimed in claim 1 in which a cluster of fibre optic light transmitter strands are employed.
Claim 4
Dependent Claim
49 words
Apparatus as claimed in claim 1 in which a single light source delivers light to the second part of a number of said fibre optic light transmitter strands , and light emitting first parts of said fibre optic light transmitter strands are located at different parts within said enclosure.
Claim 5
Dependent Claim
13 words
Apparatus as claimed in claim 1 in which said enclosure is a cabinet.
Claim 6
Dependent Claim
36 words
Apparatus as claimed in claim 4 in which said cabinet is provided with a door, and said light emitting first parts of the fibre optic transmitter strands are located within a surrounding frame of said door.
Claim 7
Dependent Claim
25 words
Apparatus as claimed in claim 4 in which said cabinet is provided with shelves, and said fibre optic light transmitter strands are arranged level therewith.
Claim 8
Dependent Claim
22 words
Apparatus as claimed in claim 4 in which said fibre optic light transmitter strands are located in a roof to said cabinet.
Claim 9
Dependent Claim
36 words
Apparatus as claimed in claim 5 in which said surrounding frame is provided with one of a transparent panel and a light emitting panel connected to one or more of the fibre optic light transmitter strands.
Claim 10
Dependent Claim
23 words
Apparatus as claimed in claim 1 in which said fibre optic light transmitter strands include a junction at an entrance to the enclosure.
Claim 11
Dependent Claim
24 words
Apparatus as claimed in claim 1 in which a plurality of said fibre optic transmitter strands are utilized in a linear fibre optic array.
Claim 12
Dependent Claim
19 words
Apparatus as claimed in claim 10 in which said linear fibre optic array is coupled to an axial array.
Claim 13
Dependent Claim
40 words
Apparatus as claimed in claim 1 in which the means for delivering light is provided by an optics box within which a light source is provided and into which extends the second part of said fibre optic light transmitter strand.
References Cited (Backward Citations)
US2148159A
Cited
US2259147A
Cited
US2438972A
Cited
US3131690A
Cited
US3781537A
Cited
GB2073930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |