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US 5,401,098 AGranted
Portable hand-held concrete and mortar mixer
OwnerKenneth Vadnaisinventor
Life of this patent
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OwnerKenneth Vadnaisinventor
Estimating the term…
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.
A portable hand-held mixer comprising handle means adapted to support the mixer in a generally upright position, an engine attached to the handle means, drive means extending generally downwardly from the engine, a lower end on the drive means, a transverse shaft in driven engagement with the drive means at the lower end and extending outwardly from the lower end, a plurality of mixing blades mounted on the transverse shaft, and at least one of the mixing blades having a periphery forming substantially a full circle, all portions of said mixing blade limited radially and outwardly transversely by the substantially circular periphery.
Dependencies are inferred from the claim text.