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:
Dec. 13, 2011
Filed:
Nov. 09, 2010
Michael Ekholm, Minneapolis, MN (US);
Dean Brabec, North Branch, MN (US);
Tom Steinke, Columbia Heights, MN (US);
Steve Uban, Stillwater, MN (US);
Michael Ekholm, Minneapolis, MN (US);
Dean Brabec, North Branch, MN (US);
Tom Steinke, Columbia Heights, MN (US);
Steve Uban, Stillwater, MN (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
A method and apparatus for a backwash system for cleaning an underwater intake filter assembly. The backwash system includes an underwater tank coupled on one end to a source of compressed fluid and on the other end to the intake screen assembly. The backwash system includes a U-shaped release conduit that is adapted to release a predetermined quantity of fluid to the intake screen in order to clean the filter assembly of waterborne debris.