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. 13, 1984
Filed:
Nov. 17, 1983
Applicant:
Inventor:
Bertel S Nelson, Naperville, IL (US);
Assignee:
Wedgtrac Corporation, Yorkville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
74798 ; 74206 ; 74211 ;
Abstract
A roller-type drive somewhat similar to epicyclic gearing is provided wherein one of the three rollers present is a wedging roller which produces a tighter wedging action for all three planetary rollers in response to increasing torque. A stud or axle about which the wedging roller turns limits movement of the wedging roller and applies a drag thereto when a predetermined maximum torque is reached so that the drive begins to slip and does not exceed the predetermined torque desired.