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US 4,975,054 AGranted
Dental tool
OwnerBernard S. Esrockinventor
Life of this patent
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OwnerBernard S. Esrockinventor
Estimating the term…
A dental tool adapted to deliver a mixed stream of two fluids to teeth of a patient. It comprises a nozzle, a hand-piece, and a resiliently flexible clip adapted to releasably retain the nozzle in the hand-piece. The nozzle has an elongate body portion, a proximal end, a distal end, and first and second conduits through the body portion. The conduits define first and second fluid passages. The hand-piece is adapted for delivering a first fluid stream and a second fluid stream through a downstream end of the hand-piece to the proximal end of the nozzle and through the fluid passages and distal end of the nozzle. The clip has a base portion secured to the hand-piece and a contact portion adapted for engaging a contact region of the nozzle's body portion. The clip is adapted for being deflected to disengage the contact portion from the contact region to enable a user to readily remove the nozzle from or insert the nozzle into the hand-piece.
A dental tool adapted to deliver a mixed stream of two fluids to teeth of a patient, the dental tool including a nozzle, a hand-piece, and a resiliently flexible clip adapted for releasably retaining the nozzle in the hand-piece, the nozzle having an elongate body portion, a proximal end, a distal end, and first and second conduits through the body portion defining first and second fluid passages, the hand-piece adapted for delivering a first fluid stream and a second fluid stream through a downstream end of the hand-piece to the proximal end of the nozzle and through the fluid passages and distal end of the nozzle, the clip having a base portion secured to the hand-piece and a contact portion engageable with a contact region of the nozzle's body portion, said clip adapted for being deflected to disengage said contact portion from said contact region to enable a user to readily remove the nozzle from or insert the nozzle into the hand-piece.
A dental tool of the type adapted to deliver a mixed stream of two fluids to teeth of a patient, the dental tool including a nozzle, a hand-piece, and a clip for removably connecting the nozzle to the hand-piece, the nozzle having an elongate body portion, a proximal end, a distal end, and first and second conduits through the body portion defining first and second fluid passages, the hand-piece adapted for delivering a first fluid stream and a second fluid stream through a downstream end of the hand-piece to the proximal end of the nozzle and through the fluid passages and distal end of the nozzle, the clip having a base portion secured to the hand-piece and a contact portion engageable with a contact region of the nozzle's body portion and imparting a lateral force thereto to frictionally secure the nozzle to the hand-piece when the proximal end is inserted in the hand-piece, said clip adapted for being resiliently deflected to disengage the contact portion of the clip from the contact region of the body portion to thereby enable a user to readily remove the nozzle from or insert the nozzle into the hand-piece.
A dental tool of the type adapted to deliver a mixed stream of two fluids to teeth of a patient, the dental tool including a nozzle, a hand-piece, and a clip for removably connecting the nozzle to the hand-piece, the nozzle having an elongate body portion, a proximal end, a distal end, and first and second conduits through the body portion defining first and second fluid passages, the hand-piece adapted for delivering a first fluid stream and a second fluid stream through a downstream end of the hand-piece to the proximal end of the nozzle and through the fluid passages and distal, end of the nozzle, the clip having a base portion secured to the hand-piece and a contact portion engageable with a contact region of the nozzle's body portion and imparting a lateral force thereto to frictionally secure the nozzle to the hand-piece when the proximal end is inserted in the hand-piece, said contact portion being formed of an elastomeric material.
Dependencies are inferred from the claim text.