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:
Jun. 14, 2005
Filed:
Aug. 31, 2000
John M. O'brien, Tualatin, OR (US);
Danny Robert Lewis, Oregon City, OR (US);
Raymond Bryce Bushnell, Beaver Creek, OR (US);
Charles Damon Olson, Portland, OR (US);
John M. O'Brien, Tualatin, OR (US);
Danny Robert Lewis, Oregon City, OR (US);
Raymond Bryce Bushnell, Beaver Creek, OR (US);
Charles Damon Olson, Portland, OR (US);
Power Cleat, Ltd., Las Vegas, NV (US);
Abstract
A process for producing a tire having an expandable chamber utilized for extending and retracting studs provided in the periphery of the tire. In one embodiment, a non-stick film is strategically positioned between the casing and the tread prior to curing the tread onto the casing. The interface at either side of the film forms the sides of an expandable chamber. The tread side of the chamber is inset and studs are affixed thereto. Expansion of the chamber extends the studs out of the inset and into engagement with a road surface. Alternative processes provide a channel in the tread and the expansion chamber formed in the channel.