The Goodyear & Tire Rubber Company

George Samuel Fielding-Russell

Carl Trevor Ross Pulford

Ram Murthy Krishnan

Ernest Wilford Looman, Jr

Bruce Joseph Turner

Patrick John Reilly

Alan N Gent

Hao Anh Tieu

Shyh-Hua Eric Jao

Perry Marteny

Ahmet Talug

Ernest Wilford Looman

Carl Trevor Pulford

An extruder apparatus has an extruder flow channel for an extruder head having a pair of flow passages and a flow dam interposed between the flow passages and a flow splitter that locally increases or locally decreases the flow area of the first flow passage relative to the second flow passage The preferred flow channel adjusts the mass balance of the flows between passages automatically.

Adjustable flow channel for an extruder head

An extruder flow channel has a pair of flow passages and a flow dam interposed between the flow passages and a flow splitter that locally increases or locally decreases the flow area of the first flow passage relative to the second flow passage . The preferred flow channel adjusts the mass balance of the flows between passages automatically.

The present invention relates to a rubber article having a surface construction designed for abrasion resistance wherein the surface comprises a series of rubber layers parallel to each other and in a density of from at least 200 layers per 25.4 millimeters as measured along the surface area of the article and in a direction perpendicular to each layer.

Rubber article having a surface design for high abrasion resistance

A method and apparatus for detecting anomalous cords in reinforced composites uses means to deform and/or vibrate the composite and detect the vibration signature of the composite. Broken or frayed reinforcement cords in a reinforced composite cause changes in the vibration signature of the composite, and the apparatus used in the method of the invention employs a low damping material which is used in proximal contact to all the reinforcement cords in the reinforced composite, and one or more sensors to detect said changes. The apparatus may also include a computer for collating data, analyzing data, and providing a signal when an anomalous cord is recognized.

Method and apparatus for detecting cords in composites

An in situ curometer has been developed to follow the cure of thick articles during molding, by measuring continuously the dynamic mechanical properties (shear modulus and loss angle). The apparatus is designed to provide cure data on curable articles such as rubber products and components in situ, during the curing of the article, to improve manufacturing cure efficiencies. The curometer is a small-scale version of an Oscillating Disk Rheometer, designed to operate through a mold wall. An approximate theoretical treatment has been developed to relate the observed torque and loss angle to the dynamic properties of the rubber compound.

Mechanical in situ curometer

An energy absorber comprises an elastomeric member in a substantially trapezoidal configuration, a piston connected to the apex of the trapezoid, and piston retaining and mounting supports. The elastomer absorbs energy by virtue of its inclined buckling columns forming the sides of the trapezoid while the piston is forced to move in a substantially horizontal plane by the piston retaining and mounting supports. The energy absorber, when applied to vehicle applications, provides a bumper mount that accepts frontal and lateral force impact and lends itself to bumper jacking and towing forces.

Growing community of inventors

Stow, OH, United States of America

George Samuel Fielding-Russell