Multicelled, tubeless safety tire with air activated snow and ic

Details Multicelled, tubeless safety tire with air activated snow and ic Multicelled, tubeless safety tire with air activated snow and ic

1974-01-15

1976-03-09

Hoffman, Drayton E.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152210, 152339, B60C 1114

Patent

active

039425720

ABSTRACT:
An improved automobile tire that incorporates studs for engaging a roadway surface during times when covered by snow and especially by ice; the studs protruding from a narrow area around the tire which during normal use in non-icy weather is concave so to form an annular recess in order that the studs do not engage the roadway; the tire having a separate air cell just behind the annular recess which is inflatable during icy weather by a separate valve so to push outwardly the recess thus exposing the studs beyond the remainder of the tire outer periphery.

REFERENCES:
patent: 2491491 (1949-12-01), Freygang
patent: 2708470 (1955-05-01), Gramelspacher
patent: 3043356 (1962-07-01), Mayhercy
patent: 3766956 (1973-10-01), Ruane et al.

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