Water-driven tool

Details Water-driven tool Water-driven tool

2007-10-30

2007-10-30

Rose, Robert A. (Department: 3723)

Abrading

Machine

Rotary tool

C451S359000

Reexamination Certificate

active

11128531

ABSTRACT:
A portable water-driven rotary tool for drilling, grinding and polishing concrete and stone that provides for high torque and that uses water pressures as the power source, the tool including a water control valve, an impeller with blades and a drive shaft that has a longitudinal axial water passage disposed therethrough for diverting water used to power the tool onto a work surface for lubrication and as a cleaning agent.

REFERENCES:
patent: 1698970 (1929-01-01), Shaff
patent: 1881129 (1932-10-01), Peek et al.
patent: 2077693 (1937-04-01), Herrero
patent: 4102084 (1978-07-01), Bloomquist
patent: 4193228 (1980-03-01), Bowler
patent: 6203415 (2001-03-01), Torrance-Castanza
patent: 6669876 (2003-12-01), Torrance

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