US 12,292,125 B2
Umbrella check valve assembly having retention plate
Charles R. Rhodes, Preston, ID (US); and Jonathan O. Schultz, Hyrum, UT (US)
Assigned to Life Technologies Corporation, Carlsbad, CA (US)
Filed by LIFE TECHNOLOGIES CORPORATION, Carlsbad, CA (US)
Filed on Dec. 7, 2023, as Appl. No. 18/532,996.
Application 18/532,996 is a continuation of application No. 18/103,440, filed on Jan. 30, 2023, granted, now 11,873,913.
Application 18/103,440 is a continuation of application No. 17/147,586, filed on Jan. 13, 2021, granted, now 11,598,434, issued on Mar. 7, 2023.
Claims priority of provisional application 62/962,589, filed on Jan. 17, 2020.
Prior Publication US 2024/0102564 A1, Mar. 28, 2024
Int. Cl. F16K 15/14 (2006.01)
CPC F16K 15/148 (2013.01) 10 Claims
OG exemplary drawing
 
1. A check valve assembly comprising:
a first port fitting having a tubular stem with a passage extending therethrough;
a second port fitting having a tubular stem with a passage extending therethrough;
a base disposed between the first port fitting and the second port fitting, the base comprising an annular sleeve encircling a portion of the first port fitting, a portion of the second port fitting, and a seat, the seat having a first side and an opposing second side with one or more flow channels passing therethrough;
an umbrella valve comprising a flexible sealing disk having an outer surface and an opposing inner surface; and
a retention plate secured to the base so that the retention plate sits against or adjacent to the outer surface of the sealing disk, the retention plate comprising:
a plate body having a first side and an opposing second side, the first side of the plate body sitting against or adjacent to the outer surface of the sealing disk; wherein
the retention plate is disposed entirely within the annular sleeve.