US3594568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire
Assignee: GUTH LIGHTING SYSTEMS INC "GLS" A CORP OF MISSOURI
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Filing: 1968-07-16
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Granted: 1971-07-20
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Expires: 1988-07-16
Abstract
Abstract Luminaire for fluorescent lamps in which the ballast is housed in a compartment of the luminaire at one end of the lamps, and the compartment is provided with a downwardly opening, detachably hinged, door upon which the ballast is mounted. When the door is in closed position, the ballast casing is in heat-conductive contact with a metallic part which is exteriorly exposed at the top of the compartment for dissipating heat from the ballast.
Inventors
- 👤 Edwin F Guth Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:49
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/02; Y; Y10; Y10S; Y10S174/00; Y10S174/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
404 words
A luminaire for lamp tubes having an elongated troughlike casing for accommodating said tubes and a compartment formed at one end thereof for housing a ballast, said troughlike member having end members, and a sill interconnecting at least one of said end members parallel with and spaced from the upper margins of said side members, a partition extending between said side members substantially parallel with said end members and forming to either side said compartment for holding a ballast and a stall for accommodating a plurality of said lamp tubes, a plurality of pairs of lamp receptacles, the receptacles of each pair being mounted respectively one on said partition and on an end member, each receptacle being disposed to accept a lamp tube within said stall, and the receptacles of a given pair being located adjacent the space between said sill and the upper margin of said side member, a reflector depending from said sill between pairs of lamp receptacles and having V-related opposite reflecting exterior surfaces addressed respectively towards different pairs of lamp holders, said reflectors diverging towards said sill and having a hollow interior defining a wireway, a series of electrical wires engaging said lamp receptacles and being disposed through said wireway for disposition into said compartment, the conductors leading from said wireway terminating in a multipole plug-in connector half located in said compartment, and electrical conductors leading from said ballast being terminated in a multipole plug-in connector half also located in said compartment, said multipole plug-in connector halves being configurated to be intermated in only one relative orientation, a closure for said compartment, and said ballast being mounted upon said closure, said closure having a hinged connection with said compartment, and quick release means for freeing said hinge connection, there being a series of apertures provided through said partition, said hinged connection comprising a pair of tongues integral with said closure member and being bent to provide for their insertion through said partition apertures and allowing for limited retained pivotAl movement of said closure with respect to said partition, a spring member engaging with said closure and normally biased against the opposite side of said partition through which the tongues insert to thereby maintain said closure in snug retention to said partition, and said ballast and closure capable of being removed from the compartment through the movement of said tongues out of said apertures against the bias of said spring member.
Claim 2
Dependent Claim
404 words
A luminaire for lamp tubes having an elongated troughlike casing for accommodating said tubes and a compartment formed at one end thereof for housing a ballast, said troughlike member having end members, and a sill interconnecting at least one of said end members parallel with and spaced from the upper margins of said side members, a partition extending between said side members substantially parallel with said end members and forming to either side said compartment for holding a ballast and a stall for accommodating a plurality of said lamp tubes, a plurality of pairs of lamp receptacles, the receptacles of each pair being mounted respectively one on said partition and on an end member, each receptacle being disposed to accept a lamp tube within said stall, and the receptacles of a given pair being located adjacent the space between said sill and the upper margin of said side member, a reflector depending from said sill between pairs of lamp receptacles and having V-related opposite reflecting exterior surfaces addressed respectively towards different pairs of lamp holders, said reflectors diverging towards said sill and having a hollow interior defining a wireway, a series of electrical wires engaging said lamp receptacles and being disposed through said wireway for disposition into said compartment, the conductors leading from said wireway terminating in a multipole plug-in connector half located in said compartment, and electrical conductors leading from said ballast being terminated in a multipole plug-in connector half also located in said compartment, said multipole plug-in connector halves being configurated to be intermated in only one relative orientation, a closure for said compartment, and said ballast being mounted upon said closure, said closure having a hinged connection with said compartment, and quick release means for freeing said hinge connection, there being a series of apertures provided through said partition, said hinged connection comprising a pair of tongues integral with said closure member and being bent to provide for their insertion through said partition apertures and allowing for limited retained pivotAl movement of said closure with respect to said partition, a spring member engaging with said closure and normally biased against the opposite side of said partition through which the tongues insert to thereby maintain said closure in snug retention to said partition, and said ballast and closure capable of being removed from the compartment through the movement of said tongues out of said apertures against the bias of said spring member.
Claim 3
Dependent Claim
79 words
The invention of claim 1 wherein said ballast mounts upon said closure and is normally disposed upwardly within said compartment, said compartment having an upper wall thereof provided with an aperture therethrough, heat dissipating means mounted to said upper wall thereof and being exposed to the exterior of the luminaire casing through said wall aperture, and said ballast being disposed in contiguity and heat-conductive contact with said heat dissipating means when said closure is latched closed within the compartment.
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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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |