Electricity: motive power systems – Motor-reversing – Automatic and/or with time-delay means
Patent
1997-11-21
1999-02-02
Cabeca, John W.
Electricity: motive power systems
Motor-reversing
Automatic and/or with time-delay means
318466, 49 18, 70264, H02P 100
Patent
active
058669990
ABSTRACT:
A set/operate mode switch is interposed between the door sensing or element door position activated switch and a remote monitoring station, to enable the remote station to monitor the door condition, or to enable a local signal assembly to monitor the door condition. The local signal assembly is made operative by the set/operate switch, so that the sensing element can be accurately set before turning door monitoring over to the remote station. While the local signal assembly is verifying the door condition, a shunt or shorting element keeps the remote monitoring station displaying a door open condition, all the while that the local signal assembly is operatively engaged, for security reasons. Only when the local signal assembly is isolated from the arrangement, can the remote monitoring station give a true signal of the door condition.
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Bollengier Dan E.
Des Rocher Mark A.
Schmelzer Lynn A.
Cabeca John W.
Minns Michael H.
Palermo Robert F.
Schlage Lock Company
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