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. 23, 2025

Filed:

Sep. 11, 2023
Applicant:

Fisher Controls International Llc, Marshalltown, IA (US);

Inventor:

Michel K. Lovell, Marshalltown, IA (US);

Assignee:

Fisher Controls International LLC, Marshalltown, IA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 25/04 (2006.01); F04D 25/02 (2006.01); F04D 25/08 (2006.01); F04D 27/00 (2006.01);
U.S. Cl.
CPC ...
F04D 25/04 (2013.01); F04D 25/024 (2013.01); F04D 25/08 (2013.01); F04D 27/004 (2013.01);
Abstract

An air compressor system is provided for generating compressed air for one or more pneumatic instruments on a pipeline section. The pipeline section may include a valve defining an upstream portion and a downstream portion. In one example, an expander is configured to selectively receive process fluid from the upstream portion of the pipeline via an input line. In another example, a compressor is configured to receive air via an air input line and to output compressed air to an air tank via an air output line. The expander may power the compressor via the expansion of process fluid through the expander. In one example, the expander outputs the process fluid into the downstream portion of the pipeline via an output line.


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