Patents
Patents for B66B 13 - Doors, gates, or other apparatus controlling access to, or exit from, cages or lift-well landings (5,715)
07/1978
07/11/1978US4099599 Method and apparatus for fastening a door panel to a door operator mounted on an elevator car
12/1977
12/27/1977US4064667 Decorative jamb structure for elevator entranceways
11/1977
11/15/1977US4058191 Elevator system including an elevator car having door operated sealing devices adjacent door opening
11/15/1977US4057934 Protection system for automatically openable and closable door
11/01/1977US4056162 Operating mechanism for overlapping panels type doorway closures
08/1977
08/23/1977US4043430 Elevator system having common enclosure for open wiring between door controls, car top inspection station controls and traveling cable
06/1977
06/14/1977US4029176 Doorway safety device
04/1977
04/05/1977US4015688 Master door operator for vertically movable elevator gates and landing doors
03/1977
03/01/1977US4009767 Magnetically actuated locking system for elevator doors
01/1977
01/25/1977US4004655 Elevator system including door operator having an enclosure which forms track for door rollers
11/1976
11/16/1976US3991858 Locking device for a door
11/02/1976US3989123 Vandal proof interlock switch
10/1976
10/12/1976US3984952 Gauge panel structure for elevator shaft rough entrance opening
08/1976
08/03/1976US3972389 Elevator stop control arrangement
03/1976
03/16/1976US3943663 Astragal
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