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:
Oct. 15, 1991
Filed:
Oct. 18, 1989
Armin Eisermann, Velbert, DE;
Schulte-Schlagbaum Aktiengesellschaft, Velbert, DE;
Abstract
A locking device on doors is provided with inner and outer escutcheons (2, 3) and having a lock (5) which is arranged between the two escutcheons to permit actuation from the inside and outside. In order to obtain a substantial advantage by remote inquiry of the locking condition and/or storage of locking conditions which have taken place, the locking device has a simple construction, including at least one switch disk (19, 19a) which is entrained upon the actuation of the lock and contact or switch (S1, S2) associated with the switch disk in order to produce electric recording signals concerning an actuation of the lock and/or inside and outside interrogation takes place.