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:
Dec. 16, 1980
Filed:
Nov. 29, 1974
Virgil E Henley, Akron, OH (US);
James R Hineborg, Cuyahoga Falls, OH (US);
Donald H Nixdorf, Canton, OH (US);
The General Tire & Rubber Company, Akron, OH (US);
Abstract
A method and apparatus for making a pneumatic tire and particularly a giant off-the-highway radial type pneumatic tire is provided preferably by first forming a tire carcass around a tire carcass building drum and transporting the tire carcass to a second stage tire building machine by a carcass transport support means. The second stage machine comprises a first rotatable detachable building drum on a first shaft preferably capable of vertical positioning for placing the tire carcass on the first drum. The first drum is adapted to expand the tire carcass to a substantially toric configuration. A second rotatable collapsible drum for building a breaker assembly is mounted on a second shaft coaxially of the first shaft. Breaker transfer means travels over and between the drums to transfer the breaker assembly from the second drum to the first drum. When the breaker assembly is positioned over the first drum, the carcass is expanded into a toric configuration and mates with the breaker assembly. The combined breaker assembly and carcass is then stitched, and tread portion applied, and the detachable building drum with the assembled tire thereon is placed in a curing means such as a mold or pot heater.