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:
Sep. 11, 1979
Filed:
Aug. 19, 1977
Joe W Page, Jr, Huntington Beach, CA (US);
Paul H Stahlhuth, Mission Viejo, CA (US);
Den-Tal-Ez Mfg. Co., West Des Moines, IA (US);
Abstract
A straight dental handpiece has a tubular housing for a motor driven collet mechanism rotatably supported at one end of the housing. The burr receiving collet mechanism is actuated by a pair of diammetrically opposed cams supported for rotational movement about an axis extended transversely of the housing. In response to rotation of the cams, a cam follower on the collet mechanism is axially moved to actuate the collet mechanism to a burr receiving position. The cams are rotated by an external lever on the housing that is pivotally movable from a longitudinally extended operating position in nested relation with the housing, wherein the burr is gripped in the collet mechanism, to a burr releasing position projected generally radially of the housing.