Removable remote control unit for a slide projector

Details Removable remote control unit for a slide projector Removable remote control unit for a slide projector

1980-02-04

1981-12-22

Shepperd, John W.

Optics: image projectors

Housing

353 42, 353103, G02B 2720, G03B 2114

Patent

active

043067824

ABSTRACT:
A slide projector having a remote control unit which is removable engageable with the slide projector. When the control unit is disengaged from the projector, it is removably engageable with an accessory which can be a further control or indicating device. Electrical contacts on the control unit electrically communicate with contacts in an aperture located on the projector and also a similar aperture located on the accessory. Thus, during remote control operations, an additional function or indication can easily be added to the control unit.

REFERENCES:
patent: 3019704 (1962-02-01), Zillmer
patent: 3078763 (1963-02-01), McCammon
patent: 3176579 (1965-04-01), Zillmer
patent: 3221598 (1965-12-01), Hall

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