Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1984-06-08
1986-04-08
Simone, Timothy F.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15302, 15314, 15321, A47L 538, A47L 900, A47L 1130
Patent
active
045803099
ABSTRACT:
A compact, self-contained central vacuum cleaning machine has expandable vacuum suction and pressure capacities and variable vacuum suction. The machine performs a multiplicity of cleaning operations including dry vacuuming, wet vacuuming, hydro-extraction vacuuming and pressure washing.
REFERENCES:
patent: 3486309 (1969-12-01), Wild
patent: 3705437 (1972-12-01), Rukavina, Jr. et al.
patent: 3896521 (1975-07-01), Parise
patent: 4044474 (1977-08-01), Greene et al.
patent: 4154578 (1979-05-01), Bane
patent: 4194262 (1980-03-01), Finley et al.
patent: 4348783 (1982-09-01), Swanson
patent: 4475264 (1984-10-01), Schulz
Rug Doctor, Inc.
Simone Timothy F.
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