Plastic heavy-duty luminaire with direct ballast connection

Details Plastic heavy-duty luminaire with direct ballast connection Plastic heavy-duty luminaire with direct ballast connection

1981-02-09

1983-04-05

Nelson, Peter A.

Illumination

Light source and modifier

With sealing means or artificial atmosphere

362145, 362217, 362297, 362310, 362368, 362370, 362431, F21Y 2900

Patent

active

043793215

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.

REFERENCES:
patent: 3018364 (1962-01-01), Wenman
patent: 3661685 (1972-05-01), Osteen
patent: 3919459 (1975-11-01), Van Steenhoven
patent: 4019044 (1977-04-01), Kelly et al.
patent: 4019045 (1977-04-01), Bassett
patent: 4123793 (1978-10-01), Lilley
patent: 4141061 (1979-02-01), Ford et al.
patent: 4156889 (1979-05-01), Halberstadt et al.
patent: 4160286 (1979-07-01), Merritt
patent: 4200905 (1980-04-01), Shelby et al.
patent: 4234912 (1980-11-01), Barnes et al.

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