Dental syringe with finger actuated tip retainer assembly
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United States of America Patent
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-
Jun 30, 1992
Grant Date -
N/A
app pub date -
Jun 25, 1991
filing date -
Jun 25, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dental syringe is disclosed having a head and attached handle. Finger actuated valves in the head control water and air flows to a syringe tip having concentric conduits. A tip retainer assembly includes a holder having a socket to insertably receive the syringe tip. A lock collar, slidably carried by said holder, has a conical surface which acts on ball elements in the holder to urge them into locking engagement with a grooved, inserted portion of the syringe tip. A spring automatically positions the collar to the locking position with movement of the collar in an opposite direction to a tip unlocking position by fingertip pressure applied to the collar.
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