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:
Dec. 08, 1981
Filed:
Apr. 10, 1980
Applicant:
Inventor:
Ulrich Weidmann, CH-8152 Glattbrugg, CH;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
308 / ; 308 / ; 16198 ;
Abstract
The invention relates to a guide system for a counterweight that is mounted in a box-shaped profile beam, in particular for blackboards. The hollow profile beam has to this purpose on its inside longitudinal guides (17 and 18). Above and below on the counterweight (20) there are provided elastomeric bands (30) with integrally vulcanized hard-rubber elements (31) that are in light sliding contact with the longitudinal guides and that guide the counterweight during its upward and downward displacement.
Quick Actions:
Weidmann, Ulrich. (1981). Guide system for a counterweight (U.S. Patent No. 4304442). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4304442
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile