Patent ID: 9341275
Filing Date: 2016-05-17
CPC Classification: F16K,Y10T

Claim Text:
1. A check valve assembly comprising: a valve comprising (i) an elongated, elastomeric body having first and second axially opposed ends, (ii) a pocket extending into the body from an opening in the first end and having a tapered terminus within the body, and (iii) a slit extending from the second end to the pocket terminus to fluidically couple the second end to the pocket, whereby the slit is openable only by positive fluid pressure within the pocket; a first tube tightly surrounding only a portion of the body, the first tube extending past the first end from an intermediate point between the first and second ends of the body distal to the pocket terminus; and a second tube tightly surrounding at least a portion of the first tube and extending past the second end of the body, the second tube (i) having a diameter exceeding a diameter of the body so as not to interfere with opening of the slit and (ii) being nowhere in contact with the valve.