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:
Aug. 13, 1991
Filed:
Oct. 31, 1989
Dieter Stellmach, Bad Durrheim, DE;
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Abstract
A sensing device is disclosed for sensing the front edge (1a) or the rear edge (1b) of a recording material carrier (1) in a processing apparatus, wherein a feeler probe lever (2) rests on the spring-supported switching element (3a) of a microswitch (3), and wherein the connection terminal contacts (5a, 5b) of the microswitch (3) are connected to an electronic control or, respectively, display circuit (4). The invention device presents a purely mechanical, economically produceable sensing device which functions for all kinds of recording material carriers and which is wear-resistant and allows to determine with high accuracy the front edge (1a) or the rear edge (1b) of a recording material carrier (1). A first feeler lever arm (2a), pivotable into the recording material carrier path (6), forms at its tip (9) a detent stop face (11) perpendicular in stop position (10) and rectangular or nearly rectangular for the front edge (1a) of the recording material carrier (1) relative to the path of the recording material carrier.