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. 06, 1994
Filed:
Oct. 28, 1993
Philip S Johnson, Madison County, IL (US);
Barry M Newberg, St. Louis County, MO (US);
Eugene F Hildebrandt, St. Louis County, MO (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
An improved mechanism for retaining a hub-containing element such as a pulley, fan, gear or the like, on a shaft wherein the shaft has a circumferential groove formed near its end and the element has a hub to engage the shaft with a plurality of flexible fingers formed around and extending onward from the hub. The fingers have a pawl disposed to drop into the circumferential groove on the shaft and thereby secure the element in place. The pawls can be of various configurations so as to both align properly with the groove and to accommodate tolerances in the shaft assembly. A protective collar surrounds the fingers and extends axially from the hub to protect the fingers from entanglement and breakage during manufacture, storage, or transportation. The shaft also has splines formed therein proximate the groove that matingly engage corresponding keyways formed inside the hub so that the shaft positively mates with the hub.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile