Rectangular halogen lamp unit and method of manufacture

Details Rectangular halogen lamp unit and method of manufacture Rectangular halogen lamp unit and method of manufacture

1982-05-10

1985-05-28

Walsh, Donald P.

Illumination

Light source and modifier

With sealing means or artificial atmosphere

362 61, 362 80, 362 83, F21V 2900

Patent

active

045204322

ABSTRACT:
A rectangular lamp unit and an integral bracket, replaceable as a unit upon bulb burn-out, including a one-piece plastic reflector closed by a rectangular lens with an integral peripheral mounting flange on the reflector adjacent the lens so that the unit can be mounted substantially flush on a mounting panel. The unit is manufactured by applying an epoxy adhesive to a lens recess in the reflector, joining the lens thereto, and then heating the assembly to cure the epoxy. During heating, evolved gases are released from the reflector through a vent hole that is sealed by a vent plug immediately after heating by inserting the plug coated with a silicone rubber sealant into the vent hole to form a thick seal ring and push sealant into irregularities in the hole. The sealant is cured by residual heat from the epoxy curing step.

REFERENCES:
patent: 4188655 (1980-02-01), Tallon
patent: 4210841 (1980-07-01), Vodicka
patent: 4240131 (1980-12-01), Albrecht
patent: 4385257 (1983-05-01), Fitzgerald

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