Abstract: A metallic valve body member adapted to be welded for secure attachment against the top opening of pressurized liquid and gas supply tank is so designed as to provide for the assemblage of all non-integral parts after the welding operation, thereby permitting such additional parts to be fabricated of comparatively inexpensive materials such as synthetic plastics. A valve stem seats at its lower end against a valve seat within the valve body. Outer and inner elongated spool valve members are fixed, respectively, to lower end portions of the valve body member and the valve stem member to project within the interior of the tank.

Abstract: A line tap valve having a body portion integrally formed with opposed leg portions defining a saddle for the reception of a line to be tapped and bendable into embracing relation about the line to retain it securely in place during soldering or brazing, the line tap valve further comprising piercing needle mechanism separable from the body portion during the soldering or brazing operation, but adapted to be permanently assembled thereto after such soldering or brazing by a body screw-on cap and associated flare mechanism operative to simultaneously pierce the line and swadge a retaining ring for securing the piercing needle mechanism in place.

Abstract: A pressurized mixer and dispenser system for liquid shampoo and the like hair treating fluids wherein an electric pump is used to withdraw liquid concentrate directly from its supply container for admixing with pressurized tap water in a mixing chamber utilizing both jet stream interaction and filtering through a baffle element of a plastic mesh to achieve intimate mixing as diluted concentrate is drawn from the system by the use of one or more associated station dispensing guns, either singly or in simultaneous use, without the need of a mixed concentrate holding tank.