Swing arm assembly for the projector head of an overhead project

Details Swing arm assembly for the projector head of an overhead project Swing arm assembly for the projector head of an overhead project

1992-04-13

1993-09-07

Cuchlinski, Jr., William A.

Optics: image projectors

Housing

353DIG3, G03B 2130, G03B 21132

Patent

active

052433714

ABSTRACT:
An arm carrying the projection head of an overhead projector is swingable mounted on a pivot body received in a guide at one side of the housing of an overhead projector so that the entire pivot can drop into this guide in the operative upright position of the arm. In that position, the segment of the arm adjacent the pivot is locked by the guide in its upright position.

REFERENCES:
patent: 2564057 (1951-08-01), Fitzgerald
patent: 3117320 (1964-01-01), O'Toole
patent: 3124035 (1964-03-01), Lucas
patent: 3579241 (1971-05-01), Antista et al.
patent: 4795252 (1989-01-01), Kyhl
patent: 4880303 (1989-11-01), Grunwald
patent: 4968134 (1990-11-01), Shimizu et al.
Japan Abstract, p. 393, vol. 9, #246, Oct. 1985.

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