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. 17, 2026

Filed:

Oct. 13, 2023
Applicant:

Fresenius Medical Care Holdings, Inc., Waltham, MA (US);

Inventors:

David Yuds, Hudson, NY (US);

Mark Googasian, Sandy, UT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 23/18 (2006.01); A61M 1/16 (2006.01); G01F 23/30 (2006.01);
U.S. Cl.
CPC ...
G01F 23/30 (2013.01); A61M 1/1603 (2014.02);
Abstract

Liquid level detectors may include a pump for drawing liquid from a reservoir, a channel fluidically coupling the pump to the reservoir, and a J-tube connected to an end of the channel within the reservoir. The J-tube may include a first tube section and a second tube section extending along the first tube section. Perforations may extend between the first tube section and the second tube section. A pressure sensor may be positioned and configured to sense a pressure of liquid drawn from the reservoir through the J-tube and the channel and to sense pressure drops when a liquid level in the reservoir passes the respective perforations. Various other related systems and methods are also disclosed.


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