Abstract: A syringe tip is locked into a three-way dental handpiece body means of a syringe tip locking assembly that screws into a threaded receiver in the body of the handpiece. The locking assembly comprises an adaptor that has a central tapered male member that receives one end of the syringe tip, a gripping member that snaps over a raised lip on the end of the adaptor body and a locking cap that screws onto the adaptor and over the gripping member. The gripping member includes a plurality of gripping fingers that engage the syringe tip and the locking cap effects the tightening of the gripping fingers into the syringe tip. The locking assembly both applies a positive gripping action to the syringe tip and also pulls the syringe tip onto the tapered male member to securely hold the syringe tip in the adaptor during use by the dentist. The gripping member is captivated onto the raised lip of the adaptor to prevent inadvertent separation of the pieces.

Abstract: A syringe tip is locked into a three-way dental handpiece body by means of a syringe tip locking assembly that screws into a threaded receiver in the body of the handpiece. The locking assembly comprises an adaptor that has a central tapered male member that receives one end of the syringe tip, a gripping member that fits over the tapered male member and a locking cap that screws onto the adaptor and over the gripping member. The gripping member includes a plurality of gripping fingers that engage the syringe tip and the locking cap effects the tightening of the gripping fingers into the syringe tip. The locking assembly both applies a positive gripping action to the syringe tip and also pulls the syringe tip onto the tapered male member to securely hold the syringe tip in the adaptor during use by the dentist. The gripping member is captivated inside the locking cap to prevent inadvertent separation of the pieces.