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:
May. 09, 2000
Filed:
Sep. 10, 1998
Albert Uhl, Sinzheim/Kartung, DE;
Kaba Gallenschutz GmbH, Buhl/Baden, DE;
Abstract
A manually operable carousel revolving door having a locking element with a rotary axle disposed inside. The door comprises a braking motor, a rotational speed detector and a rotation direction detector, all actively connected to the locking element. If the door rotates at a speed above a predetermined rate or in a wrong direction, the rotation speed detector and the rotation direction detector signals the braking motor to act on the rotary axle of the locking element to slow the rotation rate of the door. The braking motor can be disposed in a receptacle in the top side covering in the revolving door. In addition, the braking motor can be connected to the rotary axle via a chain drive or a toothed gear drive.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile