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:
Aug. 20, 2013
Filed:
May. 01, 2012
Hugo George Derrick, Bristol, GB;
Stephen Paul Hunter, Bristol, GB;
Brendon Noel Joseph Callinan, Dursley, GB;
Hugo George Derrick, Bristol, GB;
Stephen Paul Hunter, Bristol, GB;
Brendon Noel Joseph Callinan, Dursley, GB;
Renishaw PLC, Wotton-under-Edge, GB;
Abstract
A method of fabricating a bearing surface for a gas or air bearing is described. The method comprises taking a bulk bearing portion having at least one bearing surface region and providing a coating on the bearing surface region to define at least one gas pocket. The at least one gas pocket has a depth substantially equal to the thickness of the coating. In one example, laser ablation is used to remove part of the coating to form the gas pockets. The coating may be an anodized coating and the bulk bearing portion may be formed from aluminum. An air bearing component formed using the method is also described.