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:
Mar. 03, 2009
Filed:
Dec. 19, 2001
Tire including projections having sides of unequal length and an undercut extending beneath the apex
Rene Jean Zimmer, Howald, LU;
Claude Ernest Felix Boes, Erpeldange, LU;
Rene Jean Zimmer, Howald, LU;
Claude Ernest Felix Boes, Erpeldange, LU;
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
The tire has a plurality of radially outer rubber components defining a radially outer surface (S) exposed to fluids having a relative displacement with respect to the rotating tire. At least one radially outer component has projections, the projections being defined by first sides () and second sides () of unequal length. The first sides () have a greater length, delimiting therebetween an angle α ranging from 5° to 60° and forming at their intersection an apex (P). The projections protrude by a height (h) from the radially outer surface (S) from which said first and second sides originate, the height (h) ranging from 0.2 to 100 micrometers. In more than 75% of the projections, any plane tangent to the first side () of the projection cuts the radially outer surface (S) at an acute angle.