US4574337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater lights
Assignee: ABL IP Holding LLC
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Filing: 1984-02-10
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Granted: 1986-03-04
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Expires: 2004-02-10
Abstract
Abstract An underwater light employing a housing positioned within a niche such that water may flow around the housing. A lamp is positioned within the housing directed toward a lens. The lamp reflector is surrounded by high thermal conductivity metallic wool extending out to the housing which may also be of high thermal conductivity. A potting compound in the rear of the housing encapsulates the electrical connections. A lens assembly in one embodiment is illustrated as being pivotal within the niche housing.
Inventors
- 👤 Charles B. Poppenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:32
CPC Classifications
F; F21; F21V; F21V29/00; F21V29/50; F21V29/502; F21V29/505; F21S; F21S8/00; F21S8/02; F21S8/024; F21V21/00; F21V21/14; F21V21/30; F21V25/00; F21V25/10; F21V27/00; F21V27/02; F21V29/56; F21V29/58; F21V29/70; F21V29/71; F21V29/713; F21V29/85; F21V29/89; F21V31/00; F21V31/04; F21V17/00; F21V17/10; F21V17/16; F21V17/164; F21W; F21W2131/00; F21W2131/40; F21W2131/401
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
54 words
An underwater light, comprising a thermally-conductive housing having a first opening; a lens assembly sealably closing said first opening; a heat conductive reflector within said housing directed toward said opening; a lamp within said reflector; and thermally-conductive elements comprising metallic wool material extending between said reflector and said housing and in thermal contact therewith.
Claim 2
Dependent Claim
54 words
An underwater light, comprising a thermally-conductive housing having a first opening; a lens assembly sealably closing said first opening; a heat conductive reflector within said housing directed toward said opening; a lamp within said reflector; and thermally-conductive elements comprising metallic wool material extending between said reflector and said housing and in thermal contact therewith.
Claim 3
Dependent Claim
14 words
The underwater light of claim 1 wherein said reflector is integral with said lamp.
Claim 4
Dependent Claim
15 words
The underwater light of claim 1 wherein said lamp is separably positioned within said reflector.
Claim 5
Dependent Claim
14 words
The underwater light of claim 1 wherein said lamp is a quartz halogen lamp.
Claim 6
Dependent Claim
18 words
The underwater light of claim 1 wherein said reflector is grounded to said housing through said wool material.
Claim 7
Dependent Claim
18 words
The underwater light of claim 1 wherein said lens is around about 20 square inches in surface area.
Claim 8
Dependent Claim
12 words
The underwater light of claim 1 wherein said elements are copper wool.
Claim 9
Dependent Claim
27 words
The underwater light of claim 1 wherein said reflector is dish-shaped and extends from about said lamp outwardly to said housing and forwardly toward said first opening.
Claim 10
Dependent Claim
62 words
The underwater light of claim 1 further comprising a socket having electrical leads and a potting compound within said housing, said leads being located within said potting compound, said potting compound being most distant in said housing from said opening, said reflector being proximate in said housing to said opening and said thermally-conductive elements being between said reflector and said potting compound.
Claim 11
Dependent Claim
28 words
The underwater light of claim 1 further comprising a socket having electrical leads and a potting compound within said housing, said leads being located within said potting compound.
Claim 12
Dependent Claim
38 words
The underwater light of claim 10 wherein said potting compound is most distant in said housing from said opening, said reflector is proximate to said opening and said metallic wool is between said reflector and said potting compound.
Claim 13
Dependent Claim
36 words
The underwater light of claim 1 further comprising a niche housing about said housing and spaced therefrom, said space between said niche housing and said housing being in communication with the environments ahead of said lens.
Claim 14
Dependent Claim
74 words
The underwater light of claim 12 wherein said lens assembly includes a lens and a circular clamp annularly disposed about said lens, said circular clamp having an outwardly convex surface of revolution, said niche having an inwardly concave surface of revolution, said outwardly convex surface mating with said inwardly concave surface such that said lens assembly may be pivoted about axes perpendicular to the axis of revolution of said inwardly concave surface of revolution.
Claim 15
Dependent Claim
36 words
The underwater light of claim 13 wherein said housing, said clamp and said lens are rigidly fixed together to pivot about said axes perpendicular to the axis of revolution of said inwardly concave surface of revolution.
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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) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |