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:
Apr. 23, 1985
Filed:
Dec. 12, 1983
Walter Schaad, Oberentfelden, CH;
Peter Kull, Schafisheim, CH;
Sprecher & Schuh AG, Aarau, CH;
Abstract
A series connection of an auxiliary switching position and a cut-on resistor is connected parallel to at least one primary switching position. A common drive rod is provided with which there is coupled a transmission system operatively associated with the primary switching position as well as a transmission system operatively associated with the auxiliary switching position. The transmission system associated with the auxiliary switching position comprises a cam cooperating with a follower or entrainment member mounted to an actuator rod leading to the auxiliary switching position. For positively controlling the sequence of movements without having to tension a spring during the cut-on of the auxiliary switching position the cam comprises a stationary cam or guide track containing a closed loop engaged by the follower member. Additionally, the follower member traverses an elongated hole of a bracket or cantilever connected with a longitudinally reciprocatable drive rod and extending parallel to the plane of the cam or guide track. The elongated hole extends transversely with respect to the direction of movement of the drive rod at least across the width of the closed loop. The follower member is guided through the closed loop in only one revolving direction of travel.