Title: Floor treating machine

Abstract: A floor treating machine primarily adapted for scrubbing a hard floor surface is disclosed. The machine includes a main frame, a modular support subassembly and a brush subassembly. The support subassembly includes a frame member secured to the main frame and a brush lift assembly. The brush lift assembly includes a main lift arm pivoted to the support frame, a fluid operated diaphragm motor engaging the main lift arm and a tilt arm pivoted at one end to the frame. The main lift arm and tilt arm are operatively connected to the brush subassembly.

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Inventors: Block, Thomas S. (Muskegon, MI, US)

Application Number: 049883
Filing Date: 1979-06-19
Publication_date: 1980-08-26
Assignee: Clarke-Gravely Corporation (Muskegon, MI)
Primary Class(es): 15/49.1 15/87
Other Classes:
US Patent Ref:

1801135	Apr, 1931	Blogg.
2121649	Jun, 1938	Beitman.
2278306	Mar, 1942	Cushman et al.
2513587	Apr, 1950	Reeves	15/319.
2526419	Oct, 1950	Reeves.
2558623	Jun, 1951	Mott.
2655678	Oct, 1953	Keogh	15/87.
2978719	Apr, 1961	Arones	15/49.
3242521	Mar, 1966	Young.
3277511	Oct, 1966	Little et al.
3299460	Jan, 1967	Burgoon	15/49.
3850473	Nov, 1974	Huber.
3866541	Feb, 1975	O'Connor et al.	15/50.
3872777	Mar, 1975	Mastis.
3879789	Apr, 1975	Kasper	15/50.
4006506	Feb, 1977	Burgoon.
4009500	Mar, 1977	Ashton	15/50.

Other Refs: 10075746952071388557

May, 1952	FR.
Aug, 1953	GB.
Mar, 1975	GB

Primary Examiner: Roberts, Edward L.
Assistant Examiner:
Attorney: Price, Heneveld, Huizenga & Cooper