Method of unseating a tire

Details Method of unseating a tire Method of unseating a tire

2007-01-09

2007-01-09

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Tire, tread or roadway

Reexamination Certificate

active

11255911

ABSTRACT:
The resistance to unseating of at least one tire mounted on a mounting rim and inflated to a predetermined pressure is determined by mounting the tire/rim unit on a vehicle in a steering axle position. The vehicle is set in motion in a straight path and stabilized at a predetermined speed. The steering wheel is then rotated to impose a steering angle which is maintained so that the vehicle travels along a circular trajectory arc. If the tire does not unseat, increases in the steering angle are made periodically so that the vehicle travels in progressively tighter circular trajectory arcs until either the tire becomes unseated or the steering wheel reaches its terminal stop.

REFERENCES:
patent: 3662597 (1972-05-01), DeGhetto
patent: 4700765 (1987-10-01), Masclaux
patent: 4878527 (1989-11-01), Noma
patent: 5139067 (1992-08-01), Shiozawa et al.
patent: 5253692 (1993-10-01), Stephens et al.
patent: 6321806 (2001-11-01), Sakamoto
patent: 6580980 (2003-06-01), Gauthier et al.
patent: 6772626 (2004-08-01), Engel et al.
patent: 6889542 (2005-05-01), Deverre et al.
patent: 2004/0083803 (2004-05-01), Deverre et al.

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