The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 1991
Filed:
Jul. 31, 1989
Simon Roberts, Southfield, MI (US);
John A Battista, Livonia, MI (US);
Alex Rhodes, West Bloomfield, MI (US);
Baseline Products, Inc., Southfield, MI (US);
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.