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:
Aug. 03, 1993
Filed:
Jul. 07, 1992
Moshe Meller, Lakewood, NJ (US);
Other;
Abstract
A dental scaler comprises an elongated housing having a forward end at which a dental scaling tool is removably connectable, and a rearward end for connection to a source of pressure working fluid. A substantially rigid elongated tubular member is resiliently supported in the housing. A vibration imparting device is coupled to an intermediate portion of the elongated tubular member, and is driven by the pressure working fluid to vibrate the elongated tubular member. A dental scaling tool is connected at the forward end portion of the elongated tubular member, and is vibrated by the vibrations produced by the vibration device. A frequency stabilizing weight is fixedly and immovably secured to a rearward end portion of the elongated tubular member for stabilizing the frequency of the vibration imparted to the forward end portion of the elongated tubular member, the weight having an outer dimension smaller than the inner dimension of the housing in the vicinity of the weight so as not to contact the housing during vibration of the elongated tubular member. The weight is preferably substantially disk-shaped, and is preferably arranged close to the rear end of the elongated tubular member. An anti-rotation device may be coupled to a forward end portion of the elongated tubular member for preventing rotation thereof relative to the housing.