US 12,078,259 B2
Flow control valve
Scott D. Moore, Bethlehem, PA (US); and John F. Englebert, Bethlehem, PA (US)
Assigned to D.T. Davis Enterprises, Ltd., Allentown, PA (US)
Appl. No. 15/734,433
Filed by D.T. Davis Enterprises, Ltd., Allentown, PA (US)
PCT Filed Mar. 30, 2018, PCT No. PCT/US2018/025309
§ 371(c)(1), (2) Date Dec. 2, 2020,
PCT Pub. No. WO2018/183784, PCT Pub. Date Oct. 4, 2018.
Claims priority of provisional application 62/479,433, filed on Mar. 31, 2017.
Prior Publication US 2021/0364094 A1, Nov. 25, 2021
Int. Cl. F16K 3/26 (2006.01); A47C 27/08 (2006.01); F16K 3/314 (2006.01); F16K 15/20 (2006.01)
CPC F16K 3/26 (2013.01) [A47C 27/081 (2013.01); F16K 3/314 (2013.01); F16K 15/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A valve, comprising:
a valve seat including a seat body defining a stem cavity and a sealing element;
a valve stem including a stem body sized and configured for insertion into the stem cavity, the stem body extending between a proximal end and a distal end, wherein the stem body defines a channel extending from the proximal end to the distal end, and wherein the stem body includes at least one opening extending through a surface to the channel; and
a coupling element defined on the surface of the stem body and configured to provide advancement of the valve stem within the stem cavity in a distal or proximal direction.