Tire repair method using solid mandrel halves

Details Tire repair method using solid mandrel halves Tire repair method using solid mandrel halves

1989-08-29

1990-12-18

Lacey, David L.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156115, 156293, 425 11, 425 23, 425 26, 264326, 152367, B29C 3502, B29C 7306

Patent

active

049784030

ABSTRACT:
A tire repair method includes assembling a harness having straps, a first (or outside) air bag and a first (or outside) heating pad, placing a tire having an area in need of repair so that the repair site is over the heating pad and the tires axis of rotation is parallel to the harness straps, then inserting a second (or inside) heating pad and a second (or inside) air bag on the inside of the tire, and finally putting in place a pair of complementary mandrel halves of the same size. These mandrel halves when in place overlie the repair area of the tire and the other items of equipment. Each mandrel half includes a top surface (which is placed in proximity with a tire bead), a convex outside surface which generally has the same contour as that of the inside of the tire sidewall, a flat inside surface, a bottom surface which is preferably convex, and two ends. The respective flat inside surfaces of the two mandrel halves are placed in touching engagement with each other so that these two surfaces are squarely aligned. The mandrel halves and the tire sidewall exert force against the rest of the assembly to hold the assembly in place while repair is taking place.

REFERENCES:
patent: 2944290 (1960-07-01), Feist et al.
patent: 3038203 (1962-06-01), Gross
patent: 3327351 (1967-06-01), Alm
patent: 3940463 (1976-02-01), Nicholson
patent: 4708608 (1987-11-01), DiRocco
patent: 4720313 (1988-01-01), Wegehaupt

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