Front loading projection unit with threaded resilient...

Details Front loading projection unit with threaded resilient... Front loading projection unit with threaded resilient...

H - Electricity

01

K

240/147, 313/85

H01K 7/02 (2006.01) F21V 19/00 (2006.01) G03B 21/20 (2006.01)

Patent

CA 1162222

D23,105 -12- TITLE: FRONT LOADING PROJECTION UNIT WITH THREADED RESILIENT RETENTION MEMBER ABSTRACT An improved projection unit including a glass reflector and a capsule member (tungsten halogen lamp and metallic retention member) removably positioned within the reflector. The projecting end of the metal retention member is threaded only on two sides and adapted for having a single thread annular nut positioned thereon to retain the capsule securely within the reflector. The nut is resilient to assure that damage to the reflector, boxlike members, or nut itself is prevented, and also to compensate for thermal expansion.

390970

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