Abstract: A fan assembly including an air duct; an evaporator coil cover; a radial fan mounted onto the evaporator coil cover and disposed between the air duct and the evaporator coil cover; wherein the air duct includes a ring portion which interlocks with the evaporator coil cover around the radial fan; wherein the evaporator coil cover comprises three darts positioned substantially uniformly around the radial fan position; three grommets, each grommet having a central opening configured to fit over a dart, each grommet having a circumferential ridge configured to interlock with a lower rim or the radial fan is provided. Further provided is a method of reducing noise in a refrigeration appliance.

Abstract: A fan assembly including an air duct; an evaporator coil cover; a radial fan mounted onto the evaporator coil cover and disposed between the air duct and the evaporator coil cover; wherein the air duct includes a ring portion which interlocks with the evaporator coil cover around the radial fan; wherein the evaporator coil cover comprises three darts positioned substantially uniformly around the radial fan position; three grommets, each grommet having a central opening configured to fit over a dart, each grommet having a circumferential ridge configured to interlock with a lower rim or the radial fan is provided. Further provided is a method of reducing noise in a refrigeration appliance.

Abstract: A system and method for computing the parameters of a forge welding machine for the forge welding of one or more materials is provided. A computer program executes a self-tuning routine to compute the operating frequency and operating power setting for the forge welding machine in response to an inputted width of the heat affected zone and an inputted weld temperature.

Abstract: An apparatus and process are provided for supporting a billet inside an induction coil while the billet is being heated by electric induction. Two or more rails of a heat resistant ceramic material provide a curvilinear surface on which the billet can slide into and out of the coil and sit on during the heating process. Rail position adjustment means may be provided for moving the rails to accommodate billets of various sizes.