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:
Mar. 01, 1988
Filed:
May. 07, 1986
Roger O Durham, Glendale, CA (US);
Other;
Abstract
A locking key prevents a slotted boss, which is secured to a spindle by a pinch bolt, from working its way off the spindle, or, in some cases, from twisting excessively in relation to the spindle. The locking key is positioned within the slot of the boss, has a hole which the pinch bolt goes through, and has a tang which engages a hole in the spindle, thus forming a loose link between the spindle and the pinch bolt. An anti-rotation tab of the locking key prevents the locking key from rotating about the pinch bolt, and prevents the tang from coming out of the tang hole in the spindle. To remove the boss, the pinch bolt must be withdrawn. The device is applicable to splined, serrated, keyed, or cylindrical spindles mounting corresponding bosses.