Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1998-03-18
1999-10-19
Paladini, Albert W.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
70271, 70432, 292 92, 340545, E05B 4700
Patent
active
059694408
ABSTRACT:
An improved pressure-actuated door access bar is disclosed which may be located on a door to control access or egress through the door, whereby the door access bar is used to trigger unlocking or opening, or both unlocking and opening, of the door following pressure being exerted on the door access bar by an individual desiring access or egress through the door. Two electromechanical force transducer assemblies having no moving parts are mounted within a rigid base member which may in turn be mounted on a door or in another desired location, and a cover member mounted over the base member exerts pressure on the electromechanical force transducer assemblies when pressure is placed on it. When a given amount of pressure is detected by either or both of the electromechanical force transducer assemblies, the door will be unlocked or opened, or both unlocked and opened. A redundant emergency switch is also located in the door access bar of the present invention, and will operate in a fail-safe manner to unlock the door in the event of a failure of one or both of the electromechanical force transducer assemblies upon detection of a greater amount of force being exerted upon the cover member.
REFERENCES:
patent: 3576119 (1971-04-01), Harris
patent: 4006471 (1977-02-01), Pappas
patent: 4257631 (1981-03-01), Logan
patent: 4328985 (1982-05-01), Logan
patent: 4354699 (1982-10-01), Logan
patent: 4652028 (1987-03-01), Logan et al.
patent: 4720128 (1988-01-01), Logan et al.
patent: 5169185 (1992-12-01), Slaybaugh et al.
patent: 5340171 (1994-08-01), Slaybaugh et al.
patent: 5429399 (1995-07-01), Geringer et al.
Geringer David
Geringer Richard
Young Christopher L.
Paladini Albert W.
Posta Jr. John J.
LandOfFree
Push bar with redundant pressure sensors and fail safe mechanica does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Push bar with redundant pressure sensors and fail safe mechanica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Push bar with redundant pressure sensors and fail safe mechanica will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2059914