Patent ID: 7040520

Claim:
A suspension mechanism for a fan motor of a combustion chamber in a combustion-powered tool for driving a fastener into a workpiece, the tool generating an upward axial acceleration of the motor upon a combustion in the chamber and a subsequent reciprocal axial acceleration of the motor, at least one of the accelerations causing the motor to oscillate relative to the tool, the suspension mechanism comprising: a mount having an inner ring configured to be secured to the motor, an outer ring configured to be secured to a portion of the tool, and a web radially disposed between and connecting said inner and outer ring, said inner ring, outer ring, and web being a unitary piece; said mount being configured to suspend the motor relative to a cylinder head of the tool at least partially within a cavity of the cylinder head; said mount being configured to directly engage the motor and provide a sole connection within the cylinder head between the motor and the cylinder head; wherein said web includes at least one corrugation.