Abstract: An improved welding apparatus, for use with a MIG apparatus, or a tungsten rod in a TIG apparatus. A nozzle housing, having an outer shroud, defines an airspace, which receives an injection of water vapor mist. The water vapor mist, when directed into the airspace in the nozzle housing, contacts the heated nozzle housing surface, and is then able to absorb the heat energy from the nozzle housing surface. When the water vapor mist absorbs heat energy, it undergoes a phase change from atomized water into steam. The steam is allowed to exit out of the rear portion of the rear of the nozzle assembly. The phase change of water to steam provides a significant heat transfer, due to the latent heat energy absorption capability of the water that is required to convert it from a liquid state to a gaseous state. This cooling apparatus, and method of cooling, both utilize a minimal amount of water usage, and also dramatically extends the usable life of the welding apparatus.

Abstract: An improved tungsten insert gas welder, having a means to remove heat energy using pressurized air, and a method for removing the heat away from the welder head area. A source of pressurized air is delivered though a hose to the welder head, and is directed through heat conductive air tubes within the welder head, is forced through a plurality of coils which surround an area that contains heat energy created during the welding process. As the air moves through the coils, it acquires some of the heat energy within the welder head. The heated air is vented into an outer jacket, which contains the electrically conductive cables, and an airspace surrounding the cables. As the heated air moves toward a rear connector block, it contacts the length of the cables, and is able to transfer some of the heat to the cables.

Abstract: An air cooled welding gun assembly adapted to be operatively connected to an electrical power, shielding gas, and weld wire feed mechanism through a cable assembly and a connector assembly. The welding gun assembly includes a front connector block having a plurality of open recesses or channels wherethrough pressurized air is conveyed, and the connector assembly includes a rear connector block. Power, gas and cooling air are contained within the cable assembly and intercommunicate the connector block of the welding gun assembly with the rear connector block of the connector assembly. The welding gun assembly also includes an air cooled nozzle assembly. In one embodiment of the air cooled welding gun assembly, a hand held air cooled welding gun assembly is provided. In another embodiment, a robotic air cooled welding gun assembly is provided.

Abstract: A liquid cooled welding gun assembly is adapted to be operatively connected to a power, gas, and weld wire feed mechanism through a cable assembly and a connector assembly. The welding gun assembly includes a front connector block and the connector assembly includes a rear connector block. Power, gas and cooling liquid hoses are contained within the cable assembly and intercommunicate the connector block of the welding gun assembly with the rear connector block. The welding gun assembly includes a liquid cooled nozzle assembly. In an alternative embodiment, a nozzle of the nozzle assembly has an internal cooling passage therein. The nozzle assembly includes alternative diffusers having longitudinally directed gas flow passages therein. A hose coupling assembly is provided for facilitating connecting and disconnecting the various power, gas and liquid hoses from the conductor blocks.

Abstract: A connector assembly includes first and second connectors which may be coupled by advancing a connector post on the first connector into a corresponding recess on the second connector. The assembly may then be fully engaged by 180.degree. rotation of one of the connectors about a longitudinal axis. Indicia on the connectors enable an operator to quickly ascertain whether the assembly is in engaged or disengaged position.

Abstract: In a welding gun apparatus, an improved electrical power conductor assembly in which electrical conduit wire may be readily secured to a cable connector body while the structural integrity of the conduit wire is maintained. Conduit wire is fastened to the connector body by means of an axially movable connector sleeve which secures the wire against a tapered mandrel on the connector body. A pressure nut threadably adapted to the connector body controls the axial position of the connector sleeve.

Abstract: A collapsible awning frame for mounting in front of an opening in a window, door, or the like. The frame receiving an awning thereon. The frame is characterized by having a rigid structure which can withstand high winds. Also, the frame provides sufficient room to allow windows and doors to be opened outwardly for receiving outside air. Further, the frame and awning can be quickly folded adjacent the opening by loosening only a pair of lock screws.