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:
Oct. 17, 1995
Filed:
Oct. 15, 1993
Paul Meyer, Ascona, CH;
AZ Formen- und Maschinenbau GmbH, Munich, DE;
Abstract
A tire retreading device has a tread feeding device for feeding the tread to a tire casing and an extruder for extruding a cushion gum layer onto the tire casing. The extruder has a first and a second lip defining the extrusion die. The first lip, positioned behind the second lip in the direction of rotation of the tire casing, projects in a direction toward the tire casing relative to the second lip. The first lip is an applicator shoe that is pressed under prestress against the tire casing so as to deform the tire casing. With the retreading device a cushion gum layer is applied to the tire casing and during the application the applicator shoe is pressed against the tire casing with such a pressing force that a radius of curvature of the tire casing conforms to a radius of curvature of the applicator shoe. With this measure, depressions in the surface of the tire casing are filled with excess cushion gum.