Abstract: An apparatus for measuring the properties of rubber elastic tires, in particular motor vehicle tires, in dependence on simulated driving loads and/or running states for the rotation of a tire to be measured at a tire contact patch and apparatus for simulating driving loads and/or running states, in particular with respect to the rotational speed, to the weight load and to the slip angle of the tire, wherein a device for measuring the visco-elastic properties of the tire is provided at the apparatus and is designed for direct use on the tire disposed in the apparatus.
Abstract: This invention relates to an improved radially expansible tire assembly drum (10) and a method forming tires (2) from an assemblage of tire components utilizing the assembly drum (10).
Type:
Grant
Filed:
March 11, 2002
Date of Patent:
December 7, 2004
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Douglas Raymond Weaver, William Dudley Currie, Dennis Alan Lundell
Abstract: A pneumatic radial ply tire 20 has a tread 24, a carcass 21, and a belt reinforcing structure 40. The carcass 21 has a steel cord reinforced radial ply extending from one annular bead to a second annular bead. The belt reinforcing structure 40 has at least two belt layers 40A, 40B having steel cords 14 with large filaments 17A, 17B, 17C, 17D in the range of 0.3 mm to 0.6 mm in diameter twisted into a 7×7 cord construction.
Type:
Grant
Filed:
July 30, 2002
Date of Patent:
November 16, 2004
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Italo Marziale Sinopoli, Charles Elmer Hamiel, Barry Allen Matrana
Abstract: A vulcanization mold is described for the manufacture of technical rubber products comprising a plurality of vent bores in which a blocking member is mounted which consists of a central body and a sealing part coupled to it which together form at least one angled flow path for air to be dissipated, with the central body being fixed in the vent bores, on the one hand, by clamping ribs provided at the central body and, on the other hand, by blocking elements which are formed at spring limbs of the sealing part.