Perimeter seal structure for a cleaning head

Details Perimeter seal structure for a cleaning head Perimeter seal structure for a cleaning head

1987-04-24

1988-01-26

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15420, 15421, A47L 1130

Patent

active

047208899

ABSTRACT:
A cleaning head for a hard or a yielding surface cleaning machine having a cleaning and a suction chamber therein, the cleaning head having an annular seal overlying the bottom edge portion thereof, the cleaning head having an incoming jet stream of aerated cleaning fluid, the seal having a predetermined density, porosity or particularly defined air passages to provide a controlled accessability of air into the cleaning chamber in operative association therein with the incoming stream of cleaning fluid.

REFERENCES:
patent: 2240005 (1941-04-01), Moyer
patent: 2243935 (1941-06-01), Williamson
patent: 2292435 (1942-08-01), Crites
patent: 3195166 (1965-07-01), Wisner
patent: 3195167 (1965-07-01), Wayne
patent: 3840935 (1974-10-01), Fitzgerald
patent: 3958298 (1976-05-01), Cannan
patent: 4488330 (1984-12-01), Grave

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