The Goodyear & Tire Rubber Company

Other

Ernest Wilford Looman, Jr

Bruce Joseph Turner

Donald Edward Helle

Charles Kenneth Schmalix

Timothy Patrick Lovell

Joseph Alan Incavo

Warren James Busch

James Earl Koerner

Patrick David Marks

Thomas Roy Fuhrig

Terrence Lee Parsons

Michael Charles Ruegg, Jr

Gary Robert Burg

Carl Trevor Ross Pulford

George Samuel Fielding-Russell

Hao Anh Tieu

Malcolm George Marshall

William James Bedont, Jr

Sylvie Catherine Evelyne Claire Dubru

Ching-Chin Lee

A method for making a compartmentalized sealant strip and barrier assemblyhas the steps of co-extruding a barrier stripof non-sealant elastomeric material with a plurality of projecting linear extending wallsand a sealant stripwherein the sealant stripis formed on one side of the barrier stripfilling the space between the plurality of projecting wallsto form a plurality of linearly extending rows of sealantacross the transverse width of the co-extrusion to form the compartmentalized sealant strip and barrier assembly. The step of co-extruding may further include the step of: forming the projecting wallson an inclined angle relative to a plane perpendicular to the width of the assembly. The step of co-extruding further has the step of forming the barrier stripwith lateral edgesandthat extend beyond the lateral outermost sealant stripson each side of the assembly, the lateral edgesbeing bonding surfaces to seal the sealant strip and barrier assemblyinto an uncured rubber layer when assembled into an unvulcanized tire

Method and apparatus for making a compartmentalized tire sealant strip

A method for making a compartmentalized sealant strip and barrier assemblyhas the steps of co-extruding a barrier stripof non-sealant elastomeric material with a plurality of projecting linear extending wallsand a sealant stripwherein the sealant stripis formed on one side of the barrier stripfilling the space between the plurality of projecting wallsto form a plurality of linearly extending rows of sealantacross the transverse width of the co-extrusion to form the compartmentalized sealant strip and barrier assembly

A roller die preformer for use in an extrusion system to form wide extruded components, such as a rubber tire tread, on a surface of a roller. The roller die preformer includes a flow inlet, a flow outlet and a laterally expanding flow channel extending from the flow inlet to the flow outlet. A flow restrictor is configured within the flow channel to urge the flow of material toward the lateral extremities of the flow channel to thereby form an extruded component at the flow outlet having a lateral width which is greater than the lateral width of the flow inlet of the preformer.

Roller die preformer for wide extrusions

An interface tool is provided for a user to interface with a CAD/CAM software package, such as Pro/ENGINEER (tm) which is resident on the client computer or on a second server computer. The interface tool is resident on the client computer. Parameters are input by the user onto web pages, and then are transferred to Pro/ENGINEER by the interface tool. Pro/ENGINEER outputs drawings, 3-D models and machining codes by using the information that was transferred from the interface tool. The user can create or modify, and verify from various aspects, models of machineable process tooling such as &ldquo;preformers&rdquo;. Pro/ENGINEER can then create appropriate toolpaths and output the machining code for CNC (computerized numeric control) machines.

Method and designing and manufacturing rubber process tooling using an interface to a CAD/CAM software program

Providing a narrow strip of electrically conductive rubber extending from a lower undertread layer to the surface of the tread by positioning a slotted chimney block in an outer tread rubber passage of a tire tread die and having the chimney block passage in communication with a lower undertread passage of the tire tread die.

Tire tread die

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.

Apparatus for directing the flow of material from a supply source to one or more shaping dies has a flow channel therein. A flow directing insert ( A) located in the downstream region of the flow channel spreads the material toward the outer walls and improves uniformity of flow in an exit zone ( ). In the downstream region ( ), the channel height is gradually decreased and levels off near the exit. The flow channel may be split into two or mom flow branches ( A, B), each flow branch having a flow directing insert ( A) therein.

Growing community of inventors

Tallmadge, OH, United States of America

Ernest Wilford Looman, Jr