Abstract: A thread cutting milling tool comprises a shank with a working portion formed with a recess for receiving a thread cutting insert. The thread cutting insert has one edge formed with a line of thread-form teeth of identical profile. The thread cutting teeth project laterally for cutting engagement with a work-piece while the tool spins about its axis. The tool also orbits within or about a work piece, and in one orbit of the tool in a helical cutting path relative to the work piece a number of complete turns of the screw-thread are formed which is equal to the number of teeth of the insert in engagement with the work-piece. A secondary cutter carried on the thread cutting milling tool provides for formation of a pilot portion or counter bore on the work piece at an end of the screw thread. The pilot portion or counter bore provides for alignment of a threaded member which is to engage the screw thread.

Abstract: A bubble jet fitting for use in a spa provides for a lay-length short enough to allow its installation within a six-inch dam wall. The bubble jet fitting has an outlet portion which in one use provides for solvent welding within a standard size of PVC pipe. A pipe extender has end portions similarly sized and configured to solvent weld within end portions of adjacent pipe sections which are connected through the pipe extender.

Abstract: An electrical junction box for swimming pool light fixtures includes a base plate and a cover member. The base plate includes plural lower conduit bosses and sockets in an array for sealingly receiving polymeric electrical conduits. The sockets are configured to singularly provide all necessary support to the junction box as installed. A grounding and bonding member is carried by the base plate within the junction box, and is configured in coordination with the array of conduit sockets to assist in organizing electrical wiring within the junction box. A strain relief structure is arranged adjacent to each conduit socket to centralize or group the wires brought into the junction box, while the grounding and bonding member (and an external bonding wire connection feature as well) provides unprecedented convenience of termination for the centralized or grouped wire connections.

Abstract: An electrical junction box for swimming pool light fixtures includes a metallic base plate and a polymer cover member. the base plate includes lower conduit hubs in a circular array, and a dual-function strain-relief and ground wire connecting structure adjacent each electrical wire opening on the upper side of the base plate. The strain relief structure are arranged to centralize the wires brought into the junction box, while the ground wire connecting structure (and a bonding wire features as well) provides unprecedented convenience of termination from the centralized wire connections. The strain relief, ground wire, and bonding wire features (as well as cover member installation on the base plate) allows their use without need to horizonal access to the junction box, access, vertically downward from above is all that is needed.