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:
Sep. 20, 2022

Filed:

Apr. 24, 2020
Applicant:

Hui-ping Hsieh, Kaohsiung, TW;

Inventor:

Hui-Ping Hsieh, Kaohsiung, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C 5/02 (2006.01); F17C 7/02 (2006.01); F17C 13/00 (2006.01); F25B 45/00 (2006.01);
U.S. Cl.
CPC ...
F17C 5/02 (2013.01); F17C 7/02 (2013.01); F17C 13/007 (2013.01); F17C 2223/0153 (2013.01); F17C 2250/0421 (2013.01); F25B 45/00 (2013.01);
Abstract

A dense fluid recovery and supply pressure sensing system includes a dense fluid source, recovery tank and working tank, where the recovery tank is in connection with the dense fluid source with an input pipe configured with a pre-pressure valve and pre-pressure compressor, and the bottom of the recovery tank is configured with a weight measuring device measuring the weight of the recovery tank and in electric connection with the pre-pressure compressor, allowing the pre-pressure compressor to control the go and stop of the compression according to a value measured by the weight measuring device; the working tank is in connection with the recovery tank through a delivery pipe configured with a pressure building compressor and configured with a recovery pipe, another end of the recovery pipe is in connection with the input pipe of the recovery tank, and the recovery pipe is configured with a recovery valve.


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