Patent ID: 7438210

Claim:
A welder comprising: a housing having top and bottom ends, the housing having a fastener receiver extending from within the housing out through the top end of the housing; vibration means mounted within the housing adjacent to the bottom end of the housing; a horn mounted to the bottom end of the housing such that the horn vibrates as the vibration means vibrate; a motor having a shaft; and a mounting assembly having a body and a fastener, the fastener having top and bottom ends, the top fastener end being connected within the mounting assembly body to the motor shaft such that the fastener rotates as the motor shaft is being driven, the bottom fastener end extending out of the mounting assembly body through the top end of the housing into a portion of the fastener receiver, wherein the fastener pulls the housing with the horn vertically upward towards the mounting assembly body upon rotation of the fastener in a first direction causing the fastener to extend into a larger portion of the fastener receiver, wherein the fastener pushes the housing with the horn vertically downward away from the mounting assembly body upon rotation of the fastener in a second direction opposite the first direction causing the fastener to extend into a smaller portion of the fastener receiver.