Automatic open and close sign

Details Automatic open and close sign Automatic open and close sign

1991-02-12

1992-08-11

Cranmer, Laurie K.

Card, picture, or sign exhibiting

Changing exhibitor

Rotatable carrier for display item

40493, 40503, G09F 1102

Patent

active

051367998

ABSTRACT:
An automatic and manually operated open-closed sign is provided that will include a timed motor to operate rotatable slats having the words "OPEN" and "CLOSED" printed on each side. A manual override is also provided so that the sign can be operated directly by a person.

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patent: 4779485 (1988-10-01), Dollison et al.
patent: 4893557 (1990-01-01), Benthake et al.

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