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:
Feb. 20, 2018
Filed:
Jul. 01, 2016
Applicant:
Spiral Water Technologies, Inc., San Rafael, CA (US);
Inventor:
David J. Levitt, San Anselmo, CA (US);
Assignee:
Spiral Water Technologies, Inc., San Anselmo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 29/64 (2006.01); B01D 46/24 (2006.01); B01D 63/06 (2006.01); B01D 65/02 (2006.01); B01D 29/11 (2006.01); B01D 29/90 (2006.01); B01D 46/00 (2006.01); B01D 29/23 (2006.01); B01D 29/60 (2006.01); B01D 46/44 (2006.01);
U.S. Cl.
CPC ...
B01D 29/6476 (2013.01); B01D 29/117 (2013.01); B01D 29/23 (2013.01); B01D 29/601 (2013.01); B01D 29/606 (2013.01); B01D 29/6415 (2013.01); B01D 29/906 (2013.01); B01D 46/0041 (2013.01); B01D 46/0043 (2013.01); B01D 46/0065 (2013.01); B01D 46/2403 (2013.01); B01D 46/442 (2013.01); B01D 46/446 (2013.01); B01D 63/06 (2013.01); B01D 65/02 (2013.01); B01D 2201/184 (2013.01); B01D 2313/48 (2013.01); B01D 2321/2041 (2013.01); B01D 2321/30 (2013.01);
Abstract
Fluid filtration devices and methods of filtering fluids are described. The devices generally include a housing and an annular filter assembly, wherein the filter assembly is located inside the housing and comprises a filter material. The filter material may be, for example, an electroformed nickel screen having a smooth working surface and expanding pores. A rotating cleaning assembly comprising a distributor and wipers may be located inside the filter assembly.