Tire repair plug and installation tool

Tools – Repair tools for resilient tires – Plug or patch inserters

Patent

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Details

81 152, 152370, B29C 7308, B29C 7306

Patent

active

050623230

ABSTRACT:
A plug and installation tool for repairing punctures in vehicle tires mounted on motor vehicles. The plug is a generally cylindrical part made of a rubber material with enlarged end portions and an interconnecting cylindrical shank portion. One of the enlarged end portions is a cylindrical head portion and has a circumferential groove for engaging the insertion tool. The other end portion is a spherical tail portion. In the first aspect of the invention an assembly comprised of the plug and a rigid core disposed on the axis of the plug is mounted on the installation tool, elongated by the tool and inserted in a puncture. In the second aspect of the invention, the rigid core is installed in the plug after the plug is inserted into the puncture. When the plug is installed in a puncture it has a generally "hourglass" shape with sealing surfaces in the puncture and at the inner and outer ends of the puncture. The installation tool is an assembly of a frame and a plunger which slideably engages the frame to elongate and reduce its diameter.

REFERENCES:
patent: 2095931 (1937-10-01), Kraft
patent: 3083597 (1963-04-01), Best
patent: 3383960 (1968-05-01), Block
patent: 4579161 (1986-04-01), Roberts
patent: 4802388 (1989-02-01), Roberts

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