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:
Nov. 03, 1981
Filed:
Sep. 19, 1979
Applicant:
Inventor:
Ernst Zimmer, Friedberg, DE;
Assignee:
Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft, Augsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ; F16H / ;
U.S. Cl.
CPC ...
74469 ; 74103 ; 74105 ; 74106 ; 74520 ; 92118 ;
Abstract
In a leverage system, a four-member articulated linkage pivoted at one extremity on a support, one linkage member being rigid with a load arm carrying a gripper assembly for holding a tool, is connected via a pair of force-transferring levers to a pneumatic cylinder for counterbalancing gravitational moments. One lever is articulated at one end to a pivot of the four-member linkage and at another end in a toggle link to the piston of the cylinder, while the other lever is pivotally connected at one end to the piston and the toggle lever and at an opposite end to an arm of a bell crank forming a linkage member.