Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1997-12-10
1999-11-09
Felber, Joseph L.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
G01M 1702
Patent
active
059792310
ABSTRACT:
A loadwheel assembly for a tire testing machine includes a loadwheel with a tire contacting surface supported along substantially its entire circumference by one or more solid discs. The loadwheel consistently measures forces and generates electrical signals corresponding to the forces to more precisely determine tire uniformity. The loadwheel, formed as an aluminum weldment which reduces manufacturing costs, rotates about spindles provided with load cells and mounted to a C-shaped carriage. The carriage has upper and lower legs with the spindles fixed to one side of each leg such that the load cells are easily accessible from one side of the carriage. The top and bottom legs of the carriage are selectively attachable to a guide piece that slidably engages a complementarily shaped member secured to the machine frame to permit the carriage to be secured to the frame with the load cells disposed on either side of the carriage legs, thereby providing access to the load cells regardless of the layout of the machine. The loadwheel assembly includes a motor and gearbox integrated with and directly driving a ball screw connected to the carriage to move the loadwheel toward and away from the tire under test.
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One page advertisement showing a prior tire testing machine, Akron Special Machinery, Inc., date unknown.
One page advertisement showing a prior tire testing machine known as X75-13 TUO, Akron Special Machinery, Inc., date unknown.
Exhibit 1--photograph of a prior tire testing machine known as M-82.
Exhibit 2--photograph of a prior tire testing machine known as FD90.
Exhibits 3-4, photographs of a prior tire testing machine known as D90.
Exhibit 5--photograph of a prior tire testing machine known as D92.
Exhibits 6-7, photographs of a prior tire uniformity machine, Model 2D80.
Exhibit 8--photograph of a prior tire testing machine.
Exhibits 9-24--photographs of a prior tire testing machine known as D70.
Eagle Picher, Akron Standard Division, product brochure submitted in its entirety, entitled "Are you really saving when you buy used Tire Uniformity Machines?Or . . . ", date unknown.
2 page product brochure of a prior tire testing machine entitled "Tire Uniformity Equipment", date unknown.
Eagle Picher, Akron Standard Division, product brochure submitted in its entirety, entitled "The Standard of the World", date unknown.
Advertisement showing a prior tire testing machine known as 2D80.
A copy of an Akron Standard product brochure entitled "Setting The Standards for the World", submitted in its entirety, date unknown.
Akron Standard product brochure for a prior tire testing machine known as Model 70 TUO, Dec., 1973.
Akron Standard Sales Specification for Tire Uniformity Machine Model D90, Jan. 1990.
Akron Standard Sales Specification for Tire Uniformity Machines, Series D70, Apr. 1997.
Exhibits 25-28 from Kobe Steel, Ltd., drawing showing a prior tire testing machine known as PC-UXO-P2, date unknown.
Exhibitsn 29-39 from Hofmann Maschinenbau Gmbh, drawing showing prior tire testing machines, copyright 1994.
Bormet Francis J.
Cukelj Richard
Jellison Frank R.
Lees, Sr. David W.
Neiferd Keith A.
Felber Joseph L.
Illinois Tool Works Inc.
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