Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1979-10-29
1982-04-06
Feldman, Peter
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
15180, 1523017, 15246, 51177, 51358, 51376, B24D 1700, B24B 2300, A46B 1302
Patent
active
043229204
ABSTRACT:
An attachment for use on a rotary floor conditioning machine comprising a master block which is integrally molded of a urethane elastomer including a centrally located hub with a circular flange member extending radially from the base thereof. A plurality of spaced vertically extending tubular receivers are carried on the circular flange. An integrally molded attachment made of urethane elastomer is provided for being attached to the master block through vertically extending posts. Stiff bristles extend out the lower surfaces of the attachment plate. The attachment plate may be molded in two stages so as to produce a stiff upper layer and a more flexible lower layer.
REFERENCES:
patent: 1958658 (1934-05-01), Engberg et al.
patent: 2229250 (1941-01-01), McRae et al.
patent: 3022529 (1962-02-01), Bonfanti
patent: 3395417 (1968-08-01), Matouka
patent: 3527001 (1970-09-01), Kleemeier et al.
patent: 4114225 (1978-09-01), Malish et al.
patent: 4138804 (1979-02-01), Thielen
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