Patent US4598347A successfully refreshed from Google Patents.
US4598347A
Expired / Lapsed
US
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Heat sink floodlight casing and reflector
Assignee: Thomas and Betts Holdings Inc
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Filing: 1984-10-18
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Granted: 1986-07-01
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Expires: 2004-10-18
Abstract
Abstract A floodlight housing is provided including a metal casing having top, bottom, side and rear walls. A plurality of elongated fins protrude from the rear wall of the casing to form a heat sink assembly. The entire casing and elongated fins are formed of cast aluminum. The housing is adapted to have an electric lamp and reflector assembly mounted within. The reflector is affixed to one of the walls of the casing in the area of maximum heat concentration from the lamp.
Inventors
- 👤 James E. Peppers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:40
CPC Classifications
F; F21; F21V; F21V15/00; F21V15/01; F21V23/00; F21V23/02; F21V23/026; F21V29/00; F21V29/50; F21V29/502; F21V29/507; F21V29/70; F21V29/74; F21V29/75; F21V29/76; F21V29/763; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/133308; F21V29/505
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
A floodlight for a lamp with an arc tube comprising: a metal casing forming a housing; a bezel mounted across the front of said housing; a reflector assembly within said housing, said reflector being in direct contact with an internal surface of said housing, and a plurality of elongated fins integrally protruding from an external surface of said housing to form a heat sink assembly with the reflector and the housing.
Claim 2
Dependent Claim
71 words
A floodlight for a lamp with an arc tube comprising: a metal casing forming a housing; a bezel mounted across the front of said housing; a reflector assembly within said housing, said reflector being in direct contact with an internal surface of said housing, and a plurality of elongated fins integrally protruding from an external surface of said housing to form a heat sink assembly with the reflector and the housing.
Claim 3
Dependent Claim
72 words
The floodlight of claim 1 wherein said lamp is mounted within said housing, said lamp having an axial center, said axial center defining various radial distances from said reflector and the reflector is in contact with said internal surface behind said lamp at substantially a smallest of said radial distances, whereby said reflector is in contact with said internal surface substantially in an area of maximum heat concentration from said arc tube.
Claim 4
Dependent Claim
37 words
The floodlight of claim 2 wherein said housing is of a generally rectangular shape, having an open front adapted to receive said bezel, and a rear wall joined to a top, a bottom and two side walls.
Claim 5
Dependent Claim
18 words
The floodlight of claim 2 wherein a mounting bracket is affixed to an outer surface of said housing.
Claim 6
Dependent Claim
46 words
The floodlight of claim 1 wherein said plurality of elongated fins protrude from the external surface of a rear wall of said housing said fins protruding in part about an area on the external surface opposite where said reflector is in contact with said external surface.
Claim 7
Dependent Claim
23 words
The floodlight of claim 1 wherein said plurality of elongated fins protrude from the external surface of a rear wall of said housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |