Abstract: A water hydrant for suppling potable water from a water source has an internal movable riser contained within a housing that extends beneath the ground to a depth below which freezing temperatures cannot reach. A chamber housing located at a distal end of the hydrant, beneath the frost line, contains a valve which may be actuated by the moving riser to provide a flow of water from the water source and through the riser. The chamber housing is configured to receive residual water from the riser when the flow of water has been shut off by the valve and to store the water beneath the frost line under sanitary conditions. A piston is disposed on a distal end of the riser, is slidably disposed within the chamber housing, and moves with the riser to expel water from the chamber housing when a handle of the hydrant is subsequently moved to reopen the valve.

Abstract: A T-fitting for use in plumbing, particularly in the installation of an appliance that requires connection to the existing water supply to the building in the building in which the appliance is installed. The fitting has an inlet and an outlet having connectors for connecting to the existing water line after the water line has been cut. A second outlet is provided to connect to a water supply line to the appliance. Preferably, the second outlet has an integral valve so that the water may be regulated to the appliance without affecting the flow of water in the existing water line.

Abstract: A superplastic forming machine having ceramic platens which are oriented to each other with heating elements of each platen arranged at a substantially right angle relationship to the heating elements of the other platen. The heating elements are formed as wires in rectangular sections which overlie each other to permit the increased preferable heating of the areas of greatest heat loss, such as the corners and the periphery of a superplastic metal forming heated platen.

Abstract: A process for dry fiber winding in the absence of resin and subsequent resin impregnating of objects such as projectile bodies having a recessed area for receiving the windings. The process includes winding the projectile body with dry glass or other dry fibers in the absence of resin, placing the wound projectile body into a heated mold, applying a vacuum, pressure injecting a metered amount of resin into the mold, applying pressure to the resin by means of a pressurized ram to impregnate the fibers, allowing the resin to cure to the gel stage within the mold, removing the projectile body from the mold without distrubing the gel surface, and completing cure of the resin at room temperature or in a curing oven.