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:
Jul. 03, 1990
Filed:
Oct. 27, 1988
Applicant:
Inventor:
Gustav Wirz, Berg, CH;
Assignee:
Alphasem AG, Berg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
4147442 ; 74 48 ; 74436 ; 384 58 ; 901 19 ; 414225 ;
Abstract
A drive arm is guided in a play-free and low-friction manner in a guide slot in a driven arm. The guide slot has two side edges which are arranged in displaced relationship with each other. Arranged on the driven arm are two rolling members, wherein a respective rolling member is associated with each side edge. At least one of the side edges is in the form of a spring bar portion so that the two rolling members roll against their side edges under a spring biasing effect.