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.

Date of Patent:
Feb. 10, 2026

Filed:

Apr. 28, 2022
Applicant:

Natural Ocean Well Co., Culver City, CA (US);

Inventor:

Robert A. Bergstrom, Culver City, CA (US);

Assignee:

OceanWell Co., Culver City, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/08 (2006.01); B01D 61/02 (2006.01); B01D 61/04 (2006.01); B01D 61/06 (2006.01); B01D 61/10 (2006.01); B01D 65/00 (2006.01); C02F 1/44 (2023.01); C02F 103/08 (2006.01); F03G 7/05 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
B01D 61/08 (2013.01); B01D 61/025 (2013.01); B01D 61/026 (2022.08); B01D 61/04 (2013.01); B01D 61/06 (2013.01); B01D 61/10 (2013.01); B01D 65/003 (2013.01); C02F 1/441 (2013.01); F03G 7/05 (2013.01); F04D 29/588 (2013.01); B01D 2311/08 (2013.01); B01D 2313/06 (2013.01); B01D 2313/125 (2013.01); B01D 2313/13 (2013.01); B01D 2313/206 (2022.08); B01D 2313/243 (2013.01); B01D 2313/365 (2013.01); B01D 2313/367 (2022.08); B01D 2313/44 (2013.01); B01D 2313/54 (2013.01); B01D 2315/06 (2013.01); B01D 2317/04 (2013.01); B01D 2319/04 (2013.01); C02F 2103/08 (2013.01); C02F 2201/002 (2013.01); C02F 2201/004 (2013.01); C02F 2201/006 (2013.01); C02F 2201/007 (2013.01); C02F 2201/009 (2013.01); C02F 2209/03 (2013.01); C02F 2209/05 (2013.01); C02F 2209/06 (2013.01); C02F 2209/22 (2013.01); C02F 2209/40 (2013.01); C02F 2303/14 (2013.01);
Abstract

A submersible water desalination apparatus includes a plurality of water separation membrane elements, a product water collector that receives product water from the membrane elements, and a variable output motorized submersible pump having a suction side that receives product water from the product water collector and a discharge side that pumps product water away from the apparatus through a product water conduit for surface or subsurface use. An automatic control or coupling is employed to reduce the pump output upon the occurrence or onset of suction side cavitation, and discourage or prevent cavitation over a range of product water flow rates from the membrane elements.


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