Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving
Reexamination Certificate
2011-03-01
2011-03-01
Strimbu, Gregory J. (Department: 3634)
Movable or removable closures
Plural wings radiate from common pivot; i.e., revolving
C049S031000, C049S044000
Reexamination Certificate
active
07895791
ABSTRACT:
A passage barrier includes at least one barrier element that can be swivelled around a swivelling axis inside a swivelling area; at least one sensor technology that detects the presence of a person in the swivelling area and that comprises at least one sending unit emitting detection waves, at least one reception unit providing output signals and an electronic evaluation unit for evaluating the output signals of the reception unit. The sending unit and the reception unit are located such that a detection wave of the detection waves extends from the sending unit through the barrier element in the swiveling area to the reception unit and wherein the barrier element is at least partially made of a detection wave transparent material. A method is also provided for operating the passage barrier.
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Miller Norbert
Sauermann Michael
Harness & Dickey & Pierce P.L.C.
Scheidt & Bachmann GmbH
Strimbu Gregory J.
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