Patent ID: 6149429
Filing Date: 2000-11-21
Classification: A61C

Abstract:
A dental handpiece syringe adaptor for attaching a fluid dispensing tip to the handpiece, the handpiece for providing pressurized air and water to the tip through the adaptor, the adaptor comprising:an elongated body;said body having first and second ends and a cylindrical bore for receiving said tip at the first end;said body having first external peripheral threads adjacent to the second end for attaching the body to said handpiece and second external peripheral threads medially the first threads and first end for receiving a nut to secure the tip to said body;the body having a first passageway in said second end in fluid communication with the bore for supplying said water from said handpiece to the bore and a second passageway in the body in fluid communication with the bore for supplying air from said handpiece to the bore, said bore forming a first chamber for receiving the tip in spaced relation to said second end and a second chamber between the received tip and second end for receiving and mixing said supplied water and air; the first chamber having a larger diameter than the second chamber with a shoulder therebetween for forming a stop for said received tip.