Abstract: An alternator valve assembly particularly suited for below ground level use in septic systems for diverting flow from a single inlet to either of two separate outlets. The valve is comprised of a plastic housing which defines a valve chamber having an inlet, a pair of outlets, and valve plug seat means located in the housing adjacent each outlet. A rubber valve plug is adapted to be received in the valve chamber in one of the outlets to selectively block flow therethrough. The plug includes a sealing lip cooperable with the valve seat of the associated outlet and includes an elongated handle protruding outwardly of the valve housing to facilitate movement of the plug between blocking positions with each of the outlets. An outlet box defining a hollow outlet box chamber and having an exit area may be disposed in operative communication with each of the valve housing outlets.

Abstract: Irrigation drip tubing including an outer tubular member having an inside wall and an outside wall and an inner tubular member having a repetitious pattern of inlet apertures, crests and roots. The crests engage the inside wall of an outer tubular member in a liquid-tight manner. The roots form conduits which connect to form oppositely directed passageways through which the fluid flows resulting in a pressure drop that drastically reduces the fluid volume flow. The inlet apertures in the inner tubular member provide for fluid communication between the inside of the inner tubular member and the passageway. Removable bosses may optionally cover outlet apertures. If used, the bosses project outwardly from the outside wall of the outer tubular member and are located periodically along the length of the tubing.

Abstract: An alternator valve assembly particularly suited for use in septic systems for diverting flow from a single inlet to either of two separate outlets. The valve is comprised of a relatively thin walled, blow molded plastic housing which defines a valve chamber having an inlet and a pair of outlets. Valve plug seat areas are located in the housing adjacent the outlets and the outlets themselves each include a hollow sleeve-like collar extending outwardly of the valve housing and tapering slightly inwardly from adjacent the housing. A rubber valve plug is adapted to be received in the valve chamber and placed in one of the outlets to selectively block flow therethrough. The plug includes a sealing lip which is cooperable with the valve seat of the associated outlet and further includes an elongated handle protruding outwardly of the valve housing to facilitate selective movement of the plug between blocking positions with each of the outlets.

Abstract: A modular assembly for constructing conduits of the type used for underground telephone lines, electrical lines, and the like. The specification discloses several embodiments each of which generally comprises a plurality of side-by-side corrugated plastic tubing sections. These sections are provided with laterally extending means which engage to prevent relative longitudinal movement between adjacent sections. Preferably, longitudinally spaced and circumferentially extending wrapping or binding members encircle the assembled section to prevent relative movement between the sections in the lateral direction. The specification and drawings also disclose several forms of joints for connecting aligned assemblies. In the preferred form, the joints include resilient foam members having spaced openings for receiving the aligned ends of the tubes in successive sections. Additionally, clamp means are provided for drawing the sections together to compress the foam members.

Abstract: The specification and drawings disclose a valve assembly particularly suited for use in septic systems for diverting flow from a single inlet to either of two separate outlets. The disclosed valve comprises a relatively thin-walled, blow molded plastic housing which defines a valve chamber having an inlet and two outlets. Valve seats are formed integrally in the housing by the transition surface between the walls of the valve chamber and the outlets. A blow molded plastic valve element is provided which is adapted to be placed in the valve chamber to selectively close off either of the outlets. The valve element includes a hollow, generally wedge-shaped plastic body having a generally conically shaped sealing surface extending outwardly from one side thereof. Boss-like protuberances are provided in the valve chamber adjacent the outlets for releasably holding the valve element in position adjacent the selected outlet.