US 12,276,277 B2
Fluid transfer and depressurization system
Douglas A. Sahm, Lutz, FL (US)
Assigned to TPE Midstream LLC, Tulsa, OK (US)
Filed by TPE MIDSTREAM LLC, Tulsa, OK (US)
Filed on Dec. 28, 2023, as Appl. No. 18/399,143.
Application 18/399,143 is a continuation of application No. 17/349,554, filed on Jun. 16, 2021, granted, now 11,859,612.
Application 17/349,554 is a continuation of application No. 16/549,729, filed on Aug. 23, 2019, granted, now 11,111,907, issued on Sep. 7, 2021.
Application 16/549,729 is a continuation of application No. 16/129,225, filed on Sep. 12, 2018, granted, now 10,443,586, issued on Oct. 15, 2019.
Claims priority of provisional application 62/670,810, filed on May 13, 2018.
Prior Publication US 2024/0125311 A1, Apr. 18, 2024
Int. Cl. F04B 9/133 (2006.01); F04B 1/02 (2006.01); F04B 7/02 (2006.01); F04B 17/03 (2006.01); F04B 25/00 (2006.01); F04B 27/00 (2006.01); F04B 39/12 (2006.01); F04B 53/16 (2006.01); F17D 3/10 (2006.01); F17D 5/02 (2006.01)
CPC F04B 9/133 (2013.01) [F04B 1/02 (2013.01); F04B 7/0266 (2013.01); F04B 39/122 (2013.01); F04B 39/123 (2013.01); F04B 53/16 (2013.01); F04B 17/03 (2013.01); F04B 25/00 (2013.01); F04B 27/005 (2013.01); F17D 3/10 (2013.01); F17D 5/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluid transfer apparatus comprising:
a drive chamber having a first end and a second end opposite the first end;
a first block on the first end of the drive chamber;
a second block on the second end of the drive chamber;
a first cylinder extending outward from the first block;
a second cylinder extending outward from the second block, the first and second cylinders fluidly coupled between a gas inlet and a gas outlet;
a drive assembly including:
a drive member in the drive chamber, the drive member dividing the drive chamber into a first chamber portion and a second chamber portion;
a rod coupled to and extending from the drive member, a first portion of the rod extending into the first cylinder, a second portion of the rod extending into the second cylinder;
a first piston coupled to the first portion of the rod and disposed in the first cylinder; and
a second piston coupled to the second portion of the rod and disposed in the second cylinder;
a switching valve to alternately supply compressed air into the first chamber portion and the second chamber portion to drive the drive assembly in a reciprocating motion; and
a first fluid line to vent air from the first chamber portion when the compressed air is being supplied into the second chamber portion, the first fluid line positioned to direct at least a portion of the air vented from the first chamber portion toward and onto an outside surface of the first block to cool the fluid transfer apparatus.