Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1990-09-20
1991-07-16
Hart, Charles
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
15353, 55DIG3, B01D 3900
Patent
active
050321552
ABSTRACT:
A wet/dry vacuum cleaner including a tank for the collection of liquid, an inlet socket for connection to a suction head, a cover for closing the top of the tank, and a centrifugal vacuum blower mounted on the cover with an axial air inlet opening to the interior of the tank. A solid matter filter is located in the tank and covers the axial air inlet to the blower. The unit includes a float valve assembly that utilizes an annular seal gasket secured to the bottom of the cover and a bowl-shaped float suspended in the tank below the gasket and having an upwardly facing annular rim adapted to sealingly engage the gasket. The float is shaped to define a downwardly extending recess adapted to surround the filter element so that when the liquid level in the tank reaches a predetermined level, the float is buoyed upwardly until its annular rim engages the seal gasket to interrupt the flow of air to the blower inlet.
REFERENCES:
patent: 2719596 (1955-10-01), Kerm et al.
patent: 3930281 (1976-01-01), Principe
patent: 4055405 (1977-10-01), Thun-Hohenstein
patent: 4179768 (1979-12-01), Sawyer
patent: 4218805 (1980-08-01), Brazier
patent: 4275731 (1981-06-01), Nichols
patent: 4315342 (1982-02-01), Neroda
patent: 4549329 (1985-10-01), St. Clair
patent: 4776060 (1988-10-01), Chang
Wiese Martin E.
Wray, Jr. Charles C.
Hart Charles
White Consolidated Industries, Inc.
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