US 12,104,701 B1
Resilient metal seal for check valve
Mark Whitlow, Columbia, SC (US); Tony Smith, Lexington, SC (US); Charles Smith, Cassatt, SC (US); and Jason Adams, Lexington, SC (US)
Assigned to TECHNETICS GROUP LLC, Charlotte, NC (US)
Filed by Technetics Group LLC, Charlotte, NC (US)
Filed on Oct. 27, 2023, as Appl. No. 18/496,561.
Application 18/496,561 is a continuation of application No. 18/151,358, filed on Jan. 6, 2023, granted, now 11,808,363.
Application 18/151,358 is a continuation of application No. 17/341,377, filed on Jun. 7, 2021, granted, now 11,549,591, issued on Jan. 10, 2023.
Claims priority of provisional application 63/047,506, filed on Jul. 2, 2020.
Int. Cl. F16K 15/06 (2006.01); F16K 1/38 (2006.01)
CPC F16K 1/38 (2013.01) [F16K 15/063 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A check valve comprising,
a valve housing having a bore;
a valve seat contained in the valve housing wherein the bore extends through the valve seat;
a valve element configured to selectively seat in the valve seat, the valve element having a high pressure facing side and a low pressure facing side, the valve element having a closed position and an opened position;
an annular channel extending around the valve seat formed by the valve housing, the valve seat, or a combination thereof;
an elastic member operatively engaged with the valve element to bias the valve element to engage the valve seat; and
a metal spring seal contained in the annular channel and operatively connected to the high pressure facing side of the valve element when the valve element is in the closed position, wherein the metal spring seal includes a seating interface for the valve element.