The Goodyear & Tire Rubber Company

Kim D Butler

Ray Allison Young

Alfred L Brown

Wesley H Gibbs

James L Lee

Teddy J Holt

An apparatus and/or method of measuring the height of a tread element 52 of a tire. The device 50 spans or straddles the tread element 52 to be measured. Two support members 65,66 are disposed to either side of the tread element to be measured in the adjacent grooves. A housing 54 has two horizontal members 56,58 each attached to the housing 54. The vertical members 64,66 are capable of slidable movement along the horizontal members and are releasably secured thereto. A measuring device 76 is carried by the housing 54 for measuring the height of the tread element with respect to the adjacent grooves.

Tread height measuring device

A package comprised of (A) reclaim rubber packaged in (B) a protective film of thermoplastic ethylene/acetate copolymer, the use of such a package for the purpose of compounding additional rubber and such compounded rubber. A method is also provided for compounding rubber using the packaged reclaim rubber of this invention and rubber and compound ingredients for the rubber which are also packaged in the prescribed film.

Packaged reclaim rubber and compounded rubber prepared therefrom

A package comprised of (A) an article selected from unvulcanized rubber or compounding ingredients therefor and (B) a protective film of a thermoplastic ethylene/vinyl acetate copolymer containing anti-block agent and having a vinyl acetate content in the range of 11 to 22 percent. The invention further relates to a compounded rubber comprised of a mixture of unsaturated rubber and a package of compounding ingredients contained in the ethylene/vinyl acetate copolymer film.

Growing community of inventors

Uniontown, OH, United States of America

Kim D Butler