Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1987-08-06
1989-09-26
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
422113, 422119, 422129, 422202, 422242, 427422, B01J 1914
Patent
active
048698784
ABSTRACT:
An apparatus for providing an oxygen-free working atmosphere wherein the waste gases from a conventional gas burner heating unit are compressed and used as buffer and propellant gases for spray guns for spraying molten metal or ceramic material onto a workpiece, where an expansion chamber is provided between the gas burner and the compressor and a constant pressure is maintained in the expansion chamber which is not less than atmospheric pressure.
REFERENCES:
patent: 3493415 (1970-02-01), Grisaffe et al.
patent: 4530862 (1985-07-01), Kerzel
patent: 4573879 (1986-03-01), Uetuji et al.
APU North America, Inc.
McMahon Timothy M.
Richman Barry S.
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