Rasp hub for tire retreading machine

Details Rasp hub for tire retreading machine Rasp hub for tire retreading machine

2011-02-22

2011-02-22

Fridie, Jr., Will (Department: 3724)

Cutters, for shaping

File or rasp

Tire rasp

C407S029150, C157S013000

Reexamination Certificate

active

07891915

ABSTRACT:
A rasp hub for use in tire retreading machines includes two side plates with mounting pins extending between the plates. Rasp blades arranged in stacks are mounted on the mounting pins. The stacks extend end-to-end circumferentially about the hub. The center portion of the mounting pins is curved so that the cut profile of the blades is convex. The blades are inclined relative to a plane perpendicular to the axis of rotation to define a cut angle. The center planes of the mounting pins intersect, preferably close to the axis of rotation of the hub, to reduce deviation of the blades from the concentricity.

REFERENCES:
patent: 4019234 (1977-04-01), Jensen et al.
patent: 4021899 (1977-05-01), Jensen
patent: 4336640 (1982-06-01), Willinger
patent: 4988326 (1991-01-01), Bennett
patent: 5206977 (1993-05-01), Larin
patent: 5283935 (1994-02-01), Jensen
patent: 5301406 (1994-04-01), Pincott
patent: 5461762 (1995-10-01), Jensen
patent: 6789982 (2004-09-01), Stanfield
patent: 2004/0047696 (2004-03-01), Stanfield
patent: 2004/0234347 (2004-11-01), Collins

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