Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1991-02-12
1992-03-17
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15339, 15412, 154222, A47L 1134
Patent
active
050955780
ABSTRACT:
The cleaning apparatus has a liquid spray device and a vacuum head attached to a movable support member. A container is provided for holding a supply of liquid. A liquid pump has its inlet coupled to the container and its outlet coupled to a heat exchanger. The outlet of the heat exchanger is coupled to a high pressure liquid conduit which is coupled to the spray device by way of a flow control valve. A return conduit is coupled from the flow control valve to the container. Two electrically actuated vacuum blowers are provided with the first blower having its inlet coupled to a vacuum tank and its outlet coupled to the inlet of the second blower. The vacuum head is coupled to the vacuum tank by way of a conduit. A switch is provided for completing a circuit to the first blower and by way of a time delay circuit to the second blower whereby when the switch is closed, the first blower begins to operate and after a time delay, the second blower begins to operate.
REFERENCES:
patent: 4159554 (1979-07-01), Knight et al.
patent: 4284127 (1981-08-01), Collier et al.
patent: 4862551 (1989-09-01), Martinez et al.
patent: 4949424 (1990-08-01), Shero
patent: 4991254 (1991-02-01), Roden et al.
Moore Chris K.
Steamatic, Inc.
Zobal Arthur F.
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