Patent ID: 11873913
Assignee: LIFE TECHNOLOGIES CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A method of directing fluid through a check valve assembly, the method comprising:
connecting a first fluid line to the check valve assembly, the check valve assembly comprising a first port fitting configured to connect to the first fluid line, a base comprising at least one fluid channel in fluid communication with the first port fitting, an umbrella valve proximate to the base, a second port fitting, and a retention plate proximate to and in direct contact with the umbrella valve;
flowing a fluid in a first direction through the first port fitting and the at least one channel to cause at least a portion of the umbrella valve to bias away from the base and towards the retention plate; and
stopping the flow of the fluid to cause at least a portion of the umbrella valve to bias towards the base and away from the retention plate, wherein the base further comprises an annular sleeve that encircles and is directly secured to the first port fitting and the second port fitting.