US 12,297,911 B2
Pressure valve assembly
Sharon Samjitsingh, Rochester, NY (US)
Assigned to APALTA PATENTS OÜ, Mõisa Tn 4 (EE)
Filed by Apalta Patents OÜ, Mõisa tn 4 (EE)
Filed on Mar. 29, 2023, as Appl. No. 18/191,938.
Application 18/191,938 is a continuation of application No. PCT/US2021/053227, filed on Oct. 1, 2021.
Claims priority of provisional application 63/153,740, filed on Feb. 25, 2021.
Claims priority of provisional application 63/146,608, filed on Feb. 6, 2021.
Claims priority of provisional application 63/087,077, filed on Oct. 2, 2020.
Prior Publication US 2023/0304586 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F16K 1/38 (2006.01); A23P 30/20 (2016.01); B01J 4/00 (2006.01); B01J 19/20 (2006.01); F16K 1/42 (2006.01); F16K 17/06 (2006.01); F16K 27/02 (2006.01)
CPC F16K 1/38 (2013.01) [A23P 30/20 (2016.08); B01J 4/002 (2013.01); B01J 19/20 (2013.01); F16K 1/42 (2013.01); F16K 17/06 (2013.01); F16K 27/0254 (2013.01); B01J 2204/002 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A valve assembly comprising:
a valve body having an input end, a discharge end, and a chamber formed therein in connection with the input end and the discharge end, wherein the input end is attachable to a tube with a fluid or slurry input that flows through the valve assembly, wherein the valve body has a first circular collar at the input end, a second circular section at the discharge end, and an intercalary conical section therebetween, and wherein the first circular collar is smaller in inner diameter than the second circular section;
a conical valve needle that has a cone with a wide end opposing to its conical tip and is axially displaceable in the chamber within the valve body, wherein the conical valve needle abuts the valve body at the discharge end of the valve body when the conical valve needle is closed on the valve body; and
a housing attached to the discharge end of the valve body and enclosing the conical valve needle when the conical valve needle is disengaged with the valve body;
wherein the conical valve needle has a diameter at the wide end that is at least 4% larger than an inner diameter of the valve body at its discharge end.