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US 4,379,321 AGranted
Plastic heavy-duty luminaire with direct ballast connection
AssigneeGeneral Electric Company
InventorsJerry R. Plemmons, Carl D. Taylor
Life of this patent
Estimating the term…
Abstract
A heavy-duty luminaire comprises a housing assembly of plastics having good resistance to weathering or corrosion but capable of withstanding only low structural stress. The heavy electrical components are supported with a ballast compartment on a removable ballast tray which is attached to a main bracket. The main bracket receives its support directly from metal mounting means independently of the housing. The structural load on the plastic housing is limited substantially to its own weight plus that of a lightweight reflector assembly.
Claims9
A luminaire comprising:
- a housing assembly of plastics having good resistance to weathering or corrosion but capable of withstanding only low structural stress, said assembly providing a weatherproof enclosure for a ballast compartment and an optics compartment,
- metal mounting means for securing to a structural support,
- a main metal bracket within the ballast compartment for the support of heavy electrical components, said main bracket being supported directly from said mounting means independently of the housing assembly,
- a reflector within the optics compartment attached to said housing assembly
- and means fastening said housing assembly to said mounting means.
2 more elements
A luminaire comprising:
- a plastics housing having bottom, back, and side walls defining a ballast compartment and an optics compartment,
- a main bracket having a portion extending transversely along the back wall, heavy electrical components secured to the front of said portion and supported in said ballast compartment,
- metal mounting means for attaching said luminaire to a structural support,
- metal fasteners extending through at least one wall of said housing and supporting said main bracket directly from said mounting means,
- a reflector within the optics compartment and a lamp socket for supporting a lamp within the reflector, said reflector being affixed to said housing,
- a door closing the front of said housing and having a window facing the optics compartment,
- and means securing said housing to said mounting means.
4 more elements
Dependencies are inferred from the claim text.