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:
Oct. 28, 2025

Filed:

Mar. 21, 2025
Applicant:

Johndow Industries, Inc., Barberton, OH (US);

Inventors:

John H. Blackburn, Jr., Ann Arbor, MI (US);

John H. Blackburn, Greenville, SC (US);

Assignee:

JohnDow Industries, Inc., Barberton, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 11/04 (2006.01); F16N 31/00 (2006.01);
U.S. Cl.
CPC ...
F01M 11/045 (2013.01); F01M 11/0408 (2013.01); F16N 31/00 (2013.01);
Abstract

A system for evacuating fluid from a reservoir including a vacuum source and a fluid extraction apparatus including an extraction device and a collection vessel assembly including a collection vessel, an extraction inlet in fluid communication with the extraction device, a vacuum source valve in fluid communication with the vacuum source and the collection vessel, a drain valve in fluid communication with the collection vessel and an outlet, and an interconnection between the vacuum source valve and the drain valve, wherein the vacuum source valve is selectively operable between an open to vacuum position a closed to vacuum position, and wherein the drain valve is selectively operable between a closed position and an open position.


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