US 12,214,301 B2
Pinch valve for soil extrusion system
M. Neil Justesen, Burley, ID (US); Fred Leoni, Burley, ID (US); and James Claude Murphy, Burley, ID (US)
Assigned to Southern Fabrication Works, LLC, Burley, ID (US)
Filed by Southern Fabrication Works, LLC, Burley, ID (US)
Filed on Jun. 25, 2023, as Appl. No. 18/213,870.
Application 18/213,870 is a continuation of application No. 17/315,239, filed on May 7, 2021, granted, now 11,684,873.
Application 17/315,239 is a continuation of application No. 16/174,012, filed on Oct. 29, 2018, granted, now 11,000,786, issued on May 11, 2021.
Application 16/174,012 is a continuation in part of application No. 15/067,525, filed on Mar. 11, 2016, granted, now 10,112,126, issued on Oct. 30, 2018.
Prior Publication US 2023/0330566 A1, Oct. 19, 2023
Int. Cl. B01D 21/34 (2006.01); B01D 21/00 (2006.01); B01D 21/24 (2006.01); C02F 1/00 (2023.01)
CPC B01D 21/2461 (2013.01) [B01D 21/0003 (2013.01); B01D 21/0012 (2013.01); B01D 21/0024 (2013.01); B01D 21/0042 (2013.01); B01D 21/0045 (2013.01); B01D 21/2427 (2013.01); B01D 21/34 (2013.01); C02F 1/001 (2013.01); B01D 21/0006 (2013.01); B01D 21/0087 (2013.01); C02F 2001/007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pinch valve comprising:
mounting plate having a pipe affixed thereto, the pipe having a first end and a second end, wherein the second end has a means for engaging a conduit;
a conduit attached to the second end of the pipe and extending away from the mounting plate;
two pairs of opposing clamping arms rotatably attached to the mounting plate; and
a pair of actuators, each mechanically coupled to one pair of the opposing clamping arms, each actuator configured to rotate one of the opposing clamping arm pairs toward another of the opposing clamping arm pairs to pinch close the conduit.