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US 5,232,170 AGranted
Material pusher
OwnerMu-Tsang Yanginventor
Life of this patent
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Abstract
A material pusher comprises a cylindrical body, a threaded rod pivotally arranged in the cylindrical body, and a driving device for forcing the threaded rod to rotate. The threaded rod is provided with a circular rod-shaped pivot portion located near the driving device and provided with a pivotally disposed force-feeding element of conical construction having a tapered end facing the free end of the threaded rod to which it is pivotally attached. The force-feeding element and the threaded rod are driven by the driving device to rotate at different speeds.
Claims1
A material pusher comprising;
- a cylindrical body, a threaded rod pivotally disposed in said cylindrical body,
- said threaded rod being provided with a circular rod-shaped pivot portion having a force-feeding means of conical construction pivotally arranged thereon,
- wherein said cylindrical body comprises a feeding portion of conical construction located correspondingly to said force-feeding means,
- driving means separately engaged to said circular rod shaped pivot portion and said force feeding means for independently rotating said threaded rod and said force feeding means at different speeds to each other,
- said driving means rotating said force-feeding means and said threaded rod in opposite directions,
- wherein said threaded rod is provided with a cutting means fastened to a portion thereof adjacent to a tapered end of said force-feeding means, said cutting means being circular in shape and having a plurality of sharp teeth arranged on outer edge thereof.
3 more elements
Dependencies are inferred from the claim text.