Portable hand-held concrete and mortar mixer

Agitating – Mortar mixer type – Movable stirrer

Patent

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Details

366129, B28C 508

Patent

active

057723184

ABSTRACT:
A portable hand-held concrete, mortar and gypsum mixer comprises a small gasoline powered implement having a drive shaft extending generally downward from the handles to a gear box. A transverse shaft driven by the drive shaft extends to either side of the gear box. Mounted on the transverse shaft are a plurality of blades shaped to thoroughly agitate and mix a combination of water and the ingredients for concrete, mortar, gypsum or similar heavy, hard to mix materials. Surrounding the blades are thin rings attached to the blades to form a round circumferential surface about the blades and thereby prevent the blades from directly contacting the mixing trough or other means of containing the mix. In the alternative, the plurality of blades may be shaped at their peripheries to form substantially continuous circular circumferences. Further improvements to the hand-held mixer comprise a positionable handle to easily control the mixer from the side, a flexible extension extending from the drag bar for more speed control by the user by manually changing the vertical orientation of the mixer handles, and openings through the mixing blades to more thoroughly mix the material by transverse movement of the material through the openings in the blades.

REFERENCES:
patent: 994978 (1911-06-01), Clemens
patent: 1593706 (1926-07-01), Skoog
patent: 2624905 (1953-01-01), Howard
patent: 2792900 (1957-05-01), Howard
patent: 2989127 (1961-06-01), Oertle
patent: 3031018 (1962-04-01), Smithers
patent: 3166303 (1965-01-01), Chapman
patent: 3185451 (1965-05-01), Snyder
patent: 4074764 (1978-02-01), Enters
patent: 4077477 (1978-03-01), Vander Lely
patent: 4256183 (1981-03-01), Hanely
patent: 4761076 (1988-08-01), Witcombe

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