Supports: cabinet structure – With movable components – Having biasing means
Patent
1978-08-30
1981-02-24
Capossela, Ronald C.
Supports: cabinet structure
With movable components
Having biasing means
55385A, 312209, 422104, F23J 1100
Patent
active
042520541
ABSTRACT:
A dental clean air cabinet is provided with a hood over a table top opening for directing flow thereto, said opening being covered by a heavy supporting screen. The inner portion of the cabinet is divided into two compartments, one compartment containing a blower, or turbine, providing suction action for drawing contaminated air into said hood through said screen and directing it into said other compartment, said other bottom compartment having a large filter outlet for filtering said contaminated air and directing clean air therefrom, said table top having a receptacle therein for plugging in an amalgam mixing device which can be placed on the heavy supporting screen for operation. The cabinet includes a switch for turning said blower on and off and a combination switch and timer for directing current to said receptacle for operating said amalgam mixing device, said hood having a door for controlling flow into an out of said hood. A microswitch is electrically connected in the system so that the amalgam mixing device will not operate until the door is closed. A controllable oral cavity collector is also connected to said cabinet having a second suction device located in said one compartment.
REFERENCES:
patent: 3041957 (1932-07-01), Liptay
patent: 3336855 (1967-08-01), Messina
patent: 3729905 (1973-05-01), Diccianni
patent: 3768970 (1973-10-01), Malmin
patent: 3820536 (1974-06-01), Anspach, Jr. et al.
patent: 4016809 (1977-04-01), Austin
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