The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 1991
Filed:
Dec. 04, 1990
Gallenschutz Metallbau GmbH, Buhl/Baden, DE;
Abstract
In a security revolving door assembly for persons, comprising one blocking sector (13) and one passage sector (12) or two passage sectors (12), a motor-driven revolving door (10), which can be blocked by means of a braking device controllable by an electronic control unit, is arranged in the door housing. Peripheral identification devices (46, 47) are connected to the electronic control unit. To ensure reliable entry and exit control, blocking, which cannot be overcome at certain angular positions of the revolving door (10), but which always makes it possible to leave the door housing, is provided. This is achieved by means of a blocking disk (23) which is in a rigid rotating connection with the revolving door (10) and has, in a blocking plane, at least one stop face pair (26/1-26/2, 27/1-27/2, 28/1-28/2) with two stop faces (26/1 through 28/2), each acting in one reaction direction. Two stationary locking bolts (24 and 25), which can be brought into blocking position between two stop faces (26/1 through 28/2), are associated with the blocking disk (23). Due to their special arrangement relative to the distance between two stop faces (26/1 through 28/2), the revolving door (10) is freely rotatable through half the sector angle of the passage sector (12) when the locking bolt (24, 25) has dropped in.