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. 12, 1996
Filed:
Jul. 29, 1994
Ronald G Coss, Newport Beach, CA (US);
Micro Motors, Inc., Santa Ana, CA (US);
Abstract
An improved dental tool coupling apparatus for coupling disposable tool heads to drive housings. A tubular nose of the housing receives a tool head shaft, which extends within a tubular output shaft coupled to a drive means. The output shaft includes a plurality of radially disposed sockets containing balls, the balls being biased into an interior space of the tubular output shaft. Upon axial coupling of the disposable tool head to the housing, the tool head shaft inserts within the tubular output shaft so that the balls create a series of axial grooves in the tool head shaft. A circular spring retainer surrounding the output shaft biases the balls into the axial grooves to maintain a certain level of rotational coupling therebetween.