Abrading – Frame or mount – Portable abrader
Patent
1994-11-15
1997-04-15
Smith, James G.
Abrading
Frame or mount
Portable abrader
173DIG1, 451295, 451344, B24B 2300
Patent
active
056203640
ABSTRACT:
A multi-purpose water-driven rotary tool having improved torque that has a housing with first and second cavities, one of the cavities housing an impeller, the other housing a main drive shaft connected to a rotatable mounting pad or backing pad that contains a disk with a grinding or sanding surface that is removably attached thereto. The high pressure water inlet conduit includes a changeable nozzle to allow using the tool with different water sources. Water is strategically diverted through a bearing mounting plate having holes by a shroud having an angular periphery or angular flange that allows the expended water from the impeller to be efficiently expelled peripherally around the outside of the main cavity of the housing. The device also includes a manually-actuated trigger for the inlet water valve which can be held at the same time with a saddle handle that is pivotal that allows the user to effectively move the device comfortably to a desired working position.
REFERENCES:
patent: 2077693 (1937-04-01), Herrero
patent: 3287859 (1966-11-01), Leveque
patent: 3695367 (1972-10-01), Catterfeld et al.
patent: 3722147 (1973-03-01), Brenner
patent: 3826045 (1974-07-01), Champayne
patent: 4526239 (1985-07-01), Kaneda et al.
patent: 4930264 (1990-06-01), Huang
patent: 5323560 (1994-06-01), Wen
patent: 5445558 (1995-08-01), Hutchins
Castanza James J.
Torrance Laura C.
Edwards Dona C.
Smith James G.
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