Quick connect/disconnect coupling for dental handpieces

Details Quick connect/disconnect coupling for dental handpieces Quick connect/disconnect coupling for dental handpieces

1990-11-05

1991-08-13

Stone, Cary E.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

A61C 108

Patent

active

050393049

ABSTRACT:
A quick connect/disconnect coupling for dental handpieces that includes a pair of telescoping coupling sleeves equipped with a plurality of bayonet slots and lugs for detachably connecting the sleeves together. In one sleeve is a spring-loaded connector body having a plurality of axially extending passages communicating with the fluid (air and water) conduits of a supply hose, the connector having a hard-surface planar end face exposed at the distal end of the sleeve. The other sleeve is a proximal extension of a handpiece and contains a plurality of tubes arranged and dimensioned to be received in the passages of the connector body when the two sleeves are coupled together. A resilient gasket, confined by a rigid support ring, surrounds the tubes and includes frusto-conical ring portions about such tubes for sealingly engaging the end face of the connector body. When the sleeves are coupled together, the spring-loaded connector body is axially displaced so that the force of the spring maintains the body and gasket in sealing contact under a predetermined and reproducible compressive load.

REFERENCES:
patent: 2701147 (1955-02-01), Summerville
patent: 3955284 (1976-05-01), Balson
patent: 4330279 (1982-05-01), Heil et al.
patent: 4403959 (1983-09-01), Hatakeyama

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