Dentistry – Apparatus – Having suction orifice
Reexamination Certificate
2005-08-02
2005-08-02
Wilson, John J (Department: 3732)
Dentistry
Apparatus
Having suction orifice
C417S199200
Reexamination Certificate
active
06923646
ABSTRACT:
There is disclosed a process and apparatus for withdrawing an exhaust stream including gas, liquids and solids from the dental operatory connected to the suction side of a vacuum pump wherein solids and liquids are sequentially removed such that compressed gas from the vacuum pump is passed through a heat exchanger for cooling, thus permitting the use of lightweight, less expensive conduit piping for a vent exhaust conduit.
REFERENCES:
patent: 5046478 (1991-09-01), Clawson
patent: 5551845 (1996-09-01), Milam
Foster, Jr. Selwyn
Gemunder Elliot R.
Hubner Henry
Air Techniques, Inc.
Frayne Clifford G.
Marn Louis E.
Wilson John J
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