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:
Apr. 07, 2020
Filed:
Aug. 08, 2016
The Goodyear Tire & Rubber Company, Akron, OH (US);
Mark John Montgomery, Rootstown, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A tire building drum is rotatably mounted on a central drive shaft and includes a center portion. A center mechanism for the drum is disposed in the center portion and includes a hub that seats on and is secured to the central drive shaft. An axially-extending piston seats on and extends circumferentially about the hub. A cylinder cooperates with the hub and the piston to form a pneumatic chamber. A plurality of links are connected to the piston and a plurality of segment bars are disposed about the circumference of the center mechanism. Each one of the segment bars is connected to selected links and seats between a lip of the cylinder and a distal end plate. When compressed air is introduced into the pneumatic chamber, the piston moves in an axial direction, actuating movement of the links and in turn actuating radial movement of the segment bars.