Title:
TRIGGER SYSTEM FOR ELECTROMAGNETIC LOCK
Document Type and Number:
WIPO Patent Application WO1999063188
Kind Code:
A3
Abstract:
An electromagnetic lock assembly employs a switch (68) which detects an attempt to open the door (28). The armature (14) is biased toward the door by a spring (54) acting between a mounting bolt (44) for the armature. An actuator protrudes from the electromagnet bonding face and engages against the cap (49) of the mounting bolt. A switch (68) may thus be actuated while the electromagnetic bonding between the armature (14) and the electromagnet is maintained.
Inventors:
FROLOV GEORGE
Application Number:
PCT/US1999/012254
Publication Date:
February 03, 2000
Filing Date:
June 01, 1999
Export Citation:
Assignee:
HARROW PRODUCTS INC (US)
International Classes:
E05C19/16; E05B17/22; E05B45/06; (IPC1-7): E05C19/16
Foreign References:
| US4703962A | 1987-11-03 | |||
| US4915431A | 1990-04-10 | |||
| US5065136A | 1991-11-12 | |||
| US4720128A | 1988-01-19 |
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