Title:
AUTOMATIC DOOR SAFETY SYSTEM WITH MULTIPLE SAFETY MODES
Document Type and Number:
WIPO Patent Application WO2000009966
Kind Code:
A3
Abstract:
An automatic door diagnostic system (100) for operating a door (120) and a door motor (130) which detects and reacts to various hazard conditions. According to one embodiment of the present invention, a sensor (136) is used to detect hazard conditions and communicates with a controller (122) which operates a motor (130) for opening and/or closing the door (120). The controller (122) then operates according to various protocols to open, close, stop and/or reverse the direction of the door (120). Additionally, according to various alternative aspects of the present invention, the automatic door diagnostic system (100) can be configured to perform diagnostic checks to ensure proper operation of the components of the system.
Inventors:
COOKSON JAMES H
HIBBETTS BRYON
HIBBETTS BRYON
Application Number:
PCT/US1999/018341
Publication Date:
May 18, 2000
Filing Date:
August 12, 1999
Export Citation:
Assignee:
COOKSON COMPANY (US)
International Classes:
E06B9/68; E06B9/88; E05F15/00; E05F15/20; E06B9/80; (IPC1-7): G08B13/08; G08B13/18; E05F15/02; E05F15/10
Foreign References:
| US5428923A | 1995-07-04 | |||
| US5396158A | 1995-03-07 | |||
| US5634298A | 1997-06-03 | |||
| US4785914A | 1988-11-22 | |||
| US4831509A | 1989-05-16 |
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