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. 25, 1986
Filed:
Mar. 25, 1985
Michael J King, Concord, CA (US);
501 Oliver Rubber Company, Oakland, CA (US);
Abstract
A device for use in vulcanizing a premolded, precured tire tread to a tire casing in a tire retreading operation, for sealing a retreading envelope against the tire carcass in the bead area of the tire. The device comprises a pair of rigid circular ring members each sized to fit against the exterior bead portion of the tire casing, with the envelope interposed between the ring and the tire casing. A series of interconnecting springs are attached to the rings at circumferentially spaced apart locations to hold them against the tire in the bead area, and spacers attached to at least some of said springs maintain a uniform distance between the bead portions of the tire casing. A compression member on an edge of each ring member provides increased sealing pressure against the envelope on the tire.