Abstract: The present disclosure relates to a system of modular functional blocks that may be used to facilitate easy assembly of a welding head assembly in any one of a wide variety of configurations to allow for distribution of welding wire, gas, cooling fluid and other media throughout an interconnected assembly of the modular functional blocks. As such, the modular functional blocks can be mixed and matched into any desired configuration as needed depending on the welding process being undertaken. The modular functional blocks may be in the form of one or more different welding wire delivery blocks, gas delivery blocks, cooling water delivery blocks, shim plates, end plates, shield cup, cover plates, insulating plates, etc.

Abstract: The present disclosure relates to a system of modular functional blocks that may be used to facilitate easy assembly of a welding head assembly in any one of a wide variety of configurations to allow for distribution of welding wire, gas, cooling fluid and other media throughout an interconnected assembly of the modular functional blocks. As such, the modular functional blocks can be mixed and matched into any desired configuration as needed depending on the welding process being undertaken. The modular functional blocks may be in the form of one or more different welding wire delivery blocks, gas delivery blocks, cooling water delivery blocks, shim plates, end plates, shield cup, cover plates, insulating plates, etc.

Abstract: A new air cushion support system for air cushion vehicles is composed of a plurality of annular peripheral jet units or modules distributed in an array in a common plane. Each peripheral jet module develops a separate air cushion or air bubble under the module to provide a plurality of independent air cushions under a vehicle. Each peripheral jet module or unit is a spring-loaded pressurized air valve with a control piston at the center of the valve spring biased to respond to back pressure variation of the air bubble or air cushion developed beneath the module caused by variations in terrain over which a vehicle is traveling. Each module or valve is formed by a pod defined by an inwardly sloping peripheral outer wall or pod skirt for directing pressurized air inwardly and downwardly toward the pod. Each module further includes a valve head, piston or pit seating within the pod skirt.