Stone working – Sawing – Rotary
Reexamination Certificate
2011-05-17
2011-05-17
Rachuba, Maurina (Department: 3727)
Stone working
Sawing
Rotary
C125S013030
Reexamination Certificate
active
07942142
ABSTRACT:
A concrete saw (10) has an electric motor (24) energized by a battery pack (34) to drive a pair of saw arbors (42) and a battery powered transmission (30) drives rear wheels (16) that provide self propulsion of the saw in cooperation with front wheels (20). A power operated actuator (54) raises and lowers the front wheels (20) to provide upward and downward movement of the saw frame (14) about its rear wheels (16). The battery pack (34) may be lead acid batteries, nickel-cadmium batteries, nickel metal hydride batteries or lithium batteries, and the electric motor (24) has 5 to 15 horsepower, preferably about 10 horsepower, to provide cutting of most conventional concrete jobs.
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Brooks & Kushman P.C.
Rachuba Maurina
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