07823699 is referenced by 1 patents and cites 30 patents.

An electromagnetic door lock assembly (30) includes a first portion (32) supported relative to hoistway doors (22) and a second portion (34) supported for movement with an elevator car (24). The first and second portions cooperate so that electromagnetic interaction between them unlocks a set of hoistway doors (22) for access to the car (24), for example. In disclosed embodiments, a first portion (32) of the actuator has at least one stationary electromagnetic portion (36A, 36B) and at least one moveable portion (38). The second portion (34) that moves with the car (24) includes at least one stationary electromagnetic portion (44). Magnetic interaction between the first and second portions (32, 34) causes selected movement of the moveable portion (38) for selectively locking or unlocking the doors (22).

Title
Electromagnetically operated elevator door lock
Application Number
11/570889
Publication Number
7823699 (B2)
Application Date
July 6, 2004
Publication Date
November 2, 2010
Inventor
Gary Copsey
Gien
FR
Muhidin A Lelic
Manchester
CT, US
Bryan Robert Siewert
Westbrook
CT, US
Pei Yuan Peng
Manchester
CT, US
Jacek F Gieras
Glastonbury
CT, US
Agent
Carlson Gaskey & Olds PC
Assignee
Otis Elevator Company
CT, US
IPC
E05C 17/56
E05B 47/00
B66B 13/06
B66B 13/02
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