Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1980-09-12
1982-10-26
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15378, 15422, A47L 512
Patent
active
043554350
ABSTRACT:
The present invention provides surface maintenance equipment, such as for sweeping lawns, which includes mechanism for preventing clogging of ducts leading to the fan and/or the hopper.
REFERENCES:
patent: 918896 (1909-04-01), Noe
patent: 935558 (1909-09-01), Spangler
patent: 2239762 (1941-04-01), Taylor
patent: 2798243 (1957-07-01), Wex
Kimzey Paul W.
Super Daniel J.
Friederichs Norman P.
Moore Chris K.
Tennant Company
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