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:
Feb. 17, 1987
Filed:
Feb. 22, 1985
Applicant:
Inventor:
James R Johnston, Sterling, IL (US);
Assignee:
National Manufacturing Co., Sterling, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05D / ;
U.S. Cl.
CPC ...
16 98 ; 16102 ; 105155 ; 384126 ;
Abstract
A trolley assembly including a channel shaped body and a pair of frictionless bearing assemblies which include a split tubular spring liner constituting the outer race of the bearing and the wheel axle extends through the space between a plurality of roller bearings positioned between the axle and the outer race. End spacers are secured between the trolley wheels and the body for controlling the end play of the roller bearings and of the trolley wheels.