Patent ID: 6692226
Filing Date: 2004-02-17
Classification: F04D,Y10S

Abstract:
A vibration-proof fastener for a radiator comprising: a pair of housings each having four first thru holes adjacent four corners; a motor fan having four second thru holes adjacent four corners made engagable with the first thru holes of said housings; a double-headed fastener having a shank engagable with the second thru holes of said motor fan, a metal pith axially wrapped in the center of the shank, a pair of diametrically enlarged heads respectively connected to two ends of the shank, said heads being symmetrically formed and each having an annular groove to define a pair of clamping flanges engagable with the first thru holes of said housings, a dome on an outer end and a conical portion connecting said heads to said shank; whereby the expansion of said fastener by heat of the motor will prevent vibrations and noises in said radiator.