Front loading projection unit with wireform retention member

Details Front loading projection unit with wireform retention member Front loading projection unit with wireform retention member

1980-12-03

1983-03-15

Walsh, Donald P.

Illumination

Light source and modifier

Including reflector

362226, 362296, F21V 700

Patent

active

043769675

ABSTRACT:
An improved projection unit which enables front removal of the unit's tungsten halogen projection lamp from the unit's glass reflector. A first retention member in the form of a boxlike metallic "can" is secured to the lamp's press sealed end and held in place by a wireform which pivots to engage a planar back surface of the glass reflector to provide said securement. The wireform is positioned on the boxlike "can" and can be inserted through the reflector's rear opening during lamp positioning.

REFERENCES:
patent: 3789212 (1974-01-01), Wagner
patent: 4219870 (1980-08-01), Haraden

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