Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1993-01-13
1994-08-30
Mancene, Gene
Dentistry
Apparatus
Having intra-oral dispensing means
433 85, 433 87, A61G 1702, A61C 110, A61C 112
Patent
active
053421957
ABSTRACT:
Various adaptors are used for securing a replaceable syringe tip in operative relationship to a handpiece body. The syringe tip is mounted on a tapered male connector set in the hollow interior of the adaptor. O ring seals and a metal flange member are used to prevent the leakage of air or water passing from the handpiece into the interior of the adaptor and then into the syringe tip. A captivated thumb nut is utilized to prevent the thumb nut from accidently disengaging completely from the adaptor. When the thumb nut is loosened to replace a syringe tip, the thumb nut will remain captivated on the adapter, only loosening enough to allow removal and insertion of a syringe tip.
REFERENCES:
patent: 3511235 (1970-05-01), Stram
patent: 4671259 (1987-06-01), Kirchner
patent: 4950160 (1990-08-01), Karst
Davis Warren
Mathews Richard R.
Wasserman David
Lucchesi Nicholas D.
Mancene Gene
Roethel John Edward
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