Image projector with double terminal lamp fixture

Details Image projector with double terminal lamp fixture Image projector with double terminal lamp fixture

1982-09-29

1984-08-21

Haroian, Harry N.

Optics: image projectors

Simultaneous projection and manual delineation

Score register

362226, G03B 2156

Patent

active

044667159

ABSTRACT:
A lamp assembly (16) mounted to an interior frame (14) of a bowling alley score projector (10). The lamp assembly (16) includes a U-shaped bracket (34) having two end portions mounting two lamp holders (44). Lamp holders (44) have housings (46) receiving coil springs (54) which spring bias sockets (48). The sockets (48) are spring biased against terminals (60) of a dual terminal quartz-halogen light bulb (50). A center bight section (40) forming a U-shaped bracket is connected to a spacer (38) which is in turn removeably secured to an arm (32) of interior frame (14).

REFERENCES:
patent: 1137773 (1915-05-01), Marsden
patent: 2122848 (1938-07-01), Stearns
patent: 2384956 (1945-09-01), Mueller et al.
patent: 2413628 (1946-12-01), Hinds
patent: 3097903 (1963-07-01), Moore
patent: 3269258 (1966-08-01), Byrd et al.
patent: 3353140 (1967-11-01), Johnson
patent: 3686529 (1972-08-01), Boland
patent: 4025779 (1977-05-01), Ahroni
patent: 4084873 (1978-04-01), Grate
patent: 4184755 (1980-01-01), Burgess et al.

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