Abstract: A cam-actuated valve is provided which includes a valve chamber having a poppet valve therein. A diaphragm separates the exterior of the valve body from fluid contained within the valve chamber. An actuator sleeve is positioned on the body for rotational and longitudinal motion. The vlave sleeve is spring-biased into a closed or "off" position by moving the actuator sleeve against the biased spring and rotating the spring about thirty degrees. The valve is moved to the "open" position. A cam forces a ball to move in a radial direction so as to open the poppet of the valve and thereby allow fluid to flow from an inlet to an outlet through the valve assembly. Locking means are provided whereby the valve is locked in the closed position.

Abstract: What is disclosed is an improvement in a tubing clamping apparatus in which a hose carrying a fluid is to be connected in fluid tight relationship with an appliance; such as, a welding torch, pressure regulator or the like; the improvement being characterized by a hose barb sealingly connected at one end with the appliance and having an outwardly extending free end having an enlarged inverted frusto-conical section thereon for sealingly receiving the hose inserted thereover, a hose inserted over the hose barb, a thermoplastic clamping means disposed about the hose and encompassing the hose between the clamping means and the hose barb to hold the hose sealingly and frictionally in place, and a retainer means for retaining the clamping means in clamping relationship with the hose and the hose barb; the retaining means being forced toward the appliance so as to apply a radially inwardly biasing force on the clamping means.

Abstract: A flowmeter for monitoring and controlling the flow of gaseous fluid at a predetermined pressure characterized by a body having a sealingly received flowtube in the center surrounded by a cover having a vent passageway and, intermediate the two, a burst capsule sealingly connected with the flowtube and the vent passage of the cover so as to allow flow therebetween until its burst strength is exceeded and thereafter rupturing to vent the gaseous fluid and prevent an explosion. Preferably, the flowmeter has a valve in an outlet passageway for controlling the flow; and the flowtube and cover are transparent with a flow bob and variable passageway for monitoring flow in the manner of a rotameter; the rotameter bob and the indicia being visible to an operator controlling the flow.

Abstract: A first separable pivot is at the height of the pelvis of an occupant and has a guide for supporting a back rest while the support thereof is being transferred from the first separable pivot to a second separable pivot near the bottom of the back rest. A pin secured to the back rest is positioned in a toothed slot for different positions of tilt while the first pivot is engaged and during folding is positioned in an adjusting arcuate slot for maintaining the second pivot engaged.