Tractor tire

Details Tractor tire Tractor tire

1989-10-11

1991-09-10

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209R, B60C 1111

Patent

active

050465414

ABSTRACT:
A tire for tractors and other off-the-road vehicles which exhibits good traction, vibration and cleaning characteristics. The tire has a tread with two sets of primary lugs (34, 38) sets of secondary lugs (70, 72). The one set of primary lugs (34) are spaced about the tread (32) and extend from the first lateral tread edge (36) to an inner end which does not extend beyond the equatorial plane (EP). The other set of primary lugs (38) extend from the second lateral edge (40) and are opposite in hand to the first set of primary lugs. The first and second sets of secondary lugs are spaced from the first and second lateral edges respectively with the second set (72) being opposite in hand to the first set (70) of secondary lugs. Each lug of the first set of secondary lugs is located between a pair of primary lugs of the first set as are each lug of the second set of secondary lugs of the second set located between a pair of primary lugs of the second set.

REFERENCES:
patent: D99605 (1936-05-01), Reel
patent: D169668 (1952-02-01), Hardeman
patent: D255674 (1980-07-01), Menin
patent: D256008 (1980-07-01), Menin
patent: D303365 (1989-09-01), Bonko
patent: D303366 (1989-09-01), Bonko
patent: D303367 (1989-09-01), Bonko et al.
patent: D303779 (1989-10-01), Bonko
patent: 3237669 (1964-04-01), Travers
patent: 3603370 (1971-09-01), Hylbert
patent: 4131148 (1978-12-01), Bertazzoli et al.
patent: 4383567 (1983-05-01), Crum et al.
patent: 4480672 (1984-11-01), Marshall et al.
patent: 4534392 (1985-08-01), Bonko et al.
patent: 4574857 (1986-03-01), Beeghly et al.
patent: 4711283 (1987-12-01), Bonko et al.
patent: 4727917 (1988-03-01), Stewart
patent: 4791971 (1988-12-01), Shinn
1980 Tread Design Guide, p. 211, Kelly-Spring.; Grader Trac, 2nd row down from top.
1982 Tread Design Guide, p. 205, Star Grader, bottom rt. corner "Operating Instruc. for Michelin Tires 84/85" p. 187, XF & Dumper (Trans).
"Michelin Tires For Enginering Implements" 76-77, p. 22 XF.

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