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. 29, 1980
Filed:
Nov. 20, 1978
Ramon Pareja, Edina, MN (US);
Lear Siegler, Inc., Santa Monica, CA (US);
Abstract
A locking collar for releasably coupling together splined shafts and wherein the mating splined shafts include telescoping inner shaft and outer housing portions. The locking means includes a locking collar with a pair of radially spaced bores extending through the wall of the locking collar, with the bores being threaded. The housing portion of the splined shaft is provided with a threaded bore which extends in continuation with at least one of those in the locking collar. The inner diameter of the locking collar exceeds the outer diameter of the housing portion of the splined shaft by about one-and-a-half times the pitch of the threads of the bore formed in the housing portion. The arrangement is such that when a set screw is disposed within the bores having the common axis, and with the set screw making contact with the surface of the shaft portion of the splined shaft, the force of a second screw disposed in the second collar bore making contact with the outer surface of the housing sets up a resultant stress in the collar which displaces the axis of the collar bore from that of the housing bore, and further cams the first set screw tightly against the outer surface of the splined shaft.