Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1987-04-20
1988-05-10
Parker, Roscoe V.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
15 49R, 15 98, 15246, B24B 2302
Patent
active
047426527
ABSTRACT:
A high speed floor burnishing machine in which fine particles generated by the burnishing action are confined, having a burnishing disc which is completely enclosed in a housing. The housing has a peripheral domed flange terminating in a sponge rubber skirt in contact with the floor, and is mounted to float in response to unevenness in the floor level. The weight of the housing compresses the skirt to the extent of 0.19 to 0.25 pounds per linear inch of skirt circumference to seal the enclosure. In one form of the invention the housing floats on a pair of sleeves surrounding bolts screwed into the base of the machine. In another form the housing is suspended from a flexible diaphragm surrounding the drive shaft.
REFERENCES:
patent: 2301164 (1942-11-01), Mall
patent: 3733635 (1973-05-01), Carden
patent: 4330897 (1982-05-01), Tucker et al.
patent: 4631775 (1986-12-01), Palmer et al.
Brown Fredrick B.
Cannan Bernard M.
Mulhall Richard C.
Wiese Martin E.
National Union Electric Corporation
Parker Roscoe V.
ServiceMaster Co L.P.
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