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. 24, 1999
Filed:
Feb. 03, 1998
Michael C Sharp, Centerport, NY (US);
Kevin Klocek, Roslyn Heights, NY (US);
Parkell Products, Inc., Farmingdale, NY (US);
Abstract
A handpiece for a dental instrument includes a solid body having internally reamed passageways through which a fluid is carried. The handpiece may be a dental air-abrading tool for etching hard surfaces to enhance bond strength of adhesives, which includes a solid body having internally reamed passageways through which a gaseous fluid and an abrasive material are carried. A connector is mounted on one end of the body for connecting one of the body's internal passageways to a supply of gaseous fluid and a nozzle is mounted on the other end of the body for directing the gaseous fluid to a surface. A supply of an abrasive material is coupled to another internal passageways of the body. The nozzle includes an internal mixing chamber for mixing the gaseous fluid and abrasive material entering therein from the body's internal passageways. A switch is mounted on the body for activating the flow of gaseous fluid and abrasive material through the body. The switch includes a valve which is slidably mounted within a gaseous fluid passageway between a first position and a second position such that in its first position the valve blocks the flow of gaseous fluid and in its second position the valve allows the gaseous fluid to flow through the body. The switch also includes a trigger pivotally mounted on the body to move the valve alternatively between its two positions. The components of the handpiece are all made from high temperature materials allowing the entire handpiece to be sterilized by autoclaving.