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:
Nov. 11, 2014
Filed:
Jun. 17, 2011
David J. Levitt, San Anselmo, CA (US);
George D. Caffell, Moss Beach, CA (US);
John H. Mallard, Saratoga, CA (US);
Steven E. O'reilly, Menlo Park, CA (US);
David J. Levitt, San Anselmo, CA (US);
George D. Caffell, Moss Beach, CA (US);
John H. Mallard, Saratoga, CA (US);
Steven E. O'Reilly, Menlo Park, CA (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Cleaning assemblies and particulate tolerant fluid bearings that are particularly well suited for use in centrifugal separation enhanced filtration devices are described. In one aspect of the invention, at least one bearing is arranged to carry a circulating cleaning assembly such that the cleaning assembly can rotate around a filter membrane during filtering operation of the filtration device. The bearing is preferably arranged to maintain the circulating cleaning assembly in a substantially coaxial alignment with the filter membrane and in a substantially stable longitudinal position relative to the filter membrane as the circulating cleaning assembly is rotated around the filter membrane. In another aspect of the invention a variety of particulate tolerant bearings are described.