Abstract: A siphon assembly includes a tube connecting a fluid source with a fluid receiver and a priming valve attached to the source end of the tube. The priming valve includes a body having an inlet port and a neck having an outlet port. The inlet and outlet ports are connected by a flow cavity extending through the body and neck. A valve member comprised of a metal ball is received in a seat near the inlet port of the body. Stop ribs are provided in the flow cavity where the body transitions to the neck to receive and centrally position the ball during siphon flow to provide substantially smooth, rapid fluid flow through the valve during siphoning. The body is comprised of a housing and an end ring attached to the housing. The two-piece body may be assembled by welding or alternatively the housing may have an annular flange on its inner surface that mates with a locking tab on the end ring to provide secure attachment.

Abstract: A hand held and hand operated device is capable of pumping or siphoning a liquid. The device includes a pair of telescoping hollow tubes having a single longitudinal axis with a seal therebetween that is maintained when one of the tubes is reciprocated relative to the other. Each of the tubes has a conical valve seat at its distal end with each conical valve seat having the same selected angle to the single longitudinal axis of the tubes. Each seat has a separate stainless steel ball to seal on the seat whenever the longitudinal axis of the tubes is at a greater angle to the horizontal than the selected angle of each conical seat to the longitudinal axis. In this position, reciprocation of the tubes causes pumping of the liquid through alternatively removing each of the balls from its seat due to pressure differentials created by changing the volume within the tubes between the balls.