US 12,313,175 B1
Float valve with a protective spring
Daniel L Schmidt, Magnolia, TX (US)
Assigned to Citadel Casing Solutions LLC, Houston, TX (US)
Filed by Citadel Casing Solutions, LLC, Houston, TX (US)
Filed on Apr. 12, 2023, as Appl. No. 18/299,696.
Int. Cl. F16K 15/06 (2006.01); F16K 15/02 (2006.01); F16K 27/02 (2006.01); F16K 1/12 (2006.01)
CPC F16K 27/0209 (2013.01) [F16K 15/026 (2013.01); F16K 15/065 (2021.08); F16K 1/126 (2013.01); F16K 2200/303 (2021.08)] 9 Claims
OG exemplary drawing
 
1. A valve, comprising:
a valve housing extending from a first end to a second end and defining a fluid flow passage therethrough;
a valve seat extending into the fluid flow passage near the second end;
a valve poppet mechanically coupled to a valve stem, the valve poppet engages and disengages with the valve seat to close and open the fluid flow passage;
a spring extending around a portion of a periphery of the valve stem, the spring extends and contracts to close and open the fluid flow passage;
the valve stem having a spring abutting surface;
a pocket positioned within the fluid flow passage, the pocket having:
a body extending from a closed end to an open end;
wherein the spring extends through the open end when in an extended state;
wherein, while the spring is in a contracted position, the open end of the pocket abuts with the spring abutting surface of the valve stem to enclose the spring within the pocket, the spring being fully enclosed within the pocket and protected from fluid flow only when the fluid flow passage is fully open; and
wherein the fluid flow passage extends from the first end of the valve housing and to the second end of the valve housing such that when the fluid flow passage is in an open configuration, fluid will flow over an entire length of the valve stem to exert force against the valve poppet.