Patent ID: 7077162

Claim:
A manually operated liquid pressure relief assembly for removable interconnection between a source of pressurized liquid and means for utilization of the pressurized liquid, comprising: a molded hollow tubular member having a first externally threaded end portion; a second end portion of the tubular member having a cylindrical recess formed in the outer surface of the member spaced inwardly from the second member outer end; a hollow cylindrical stub connector having a radially inwardly directed part at one end for threaded receipt within the recess of the tubular member; a resilient ring received over the outwardly facing surface of the stub connector; an interconnection means rotatably mounted onto the stub connector; a valving actuator having a tapered head at one end, an enlarged head at an opposite end, and a rod unitarily relating the tapered head and enlarged head to one another; the tubular member further including a first opening in a sidewall for sliding receipt of the actuator rod therein and a second opening in an opposite sidewall of the tubular member within which the tapered head is received and movable between blocking and unblocking conditions of the second opening; a first O-ring and a washer located within the tubular first opening, in the order given, with the O-ring at the deepest point within the opening; a second O-ring nested between the actuator tapered head and the walls defining the tubular member second opening; and a coil spring received on the rod with one end of the spring contacting the washer and the other end of the spring pressure contacting the enlarged head.