Card – picture – or sign exhibiting – Changing exhibitor – Alphanumeric device
Patent
1988-04-19
1989-11-21
Peshock, Robert
Card, picture, or sign exhibiting
Changing exhibitor
Alphanumeric device
40594, 40459, 40426, 116204, 446134, G09F 900
Patent
active
048813354
ABSTRACT:
A door sign device includes an actuator mounted on the inner door surface of a door that has inner and outer door surfaces so that a user can move the actuator between first and second actuator positions, and a follower mounted on the outer door surface so that the follower can be move between first and second follower positions that each correspond to a respective one of the first and second actuator positions. Coupling components are included for coupling the actuator to the follower magnetically so that the follower follows actuator movement, and indicator components responsive to the follower being in the first follower position indicate that a predetermined sign applies. Roller-type actuator and follower components may be employed that are mounted for rotation about axes that are parallel to the inner and outer door surfaces.
REFERENCES:
patent: 588149 (1897-08-01), Hinckley
patent: 1410853 (1922-03-01), Tollenaar
patent: 1947920 (1934-02-01), Primrose
patent: 3253295 (1966-05-01), Waters
patent: 3486479 (1969-12-01), Hartmann
patent: 3670435 (1972-06-01), Steward
patent: 3827168 (1974-08-01), Mori
Hakomaki J.
Hanson Loyal M.
Peshock Robert
Peterson Gordon L.
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