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:
Jan. 26, 1993
Filed:
Jun. 04, 1991
Applicant:
Inventor:
Richard L Watt, Jamestown, NY (US);
Assignee:
Weber-Knapp Company, Jamestown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47F / ;
U.S. Cl.
CPC ...
211 593 ; 108136 ; 312 71 ;
Abstract
A mechanism for use in counterbalancing a shelf or the like incident to vertical movement thereof along a trackway featuring a linkage assembly and coupling assemblies for effecting a relatively large displacement of the shelf incident to a relatively small displacement of a shelf counterbalance spring. The shelf is mounted on the trackway by followers carrying a manual brake releasably engageable with the trackway.