Patent ID: 6353981
Filing Date: 2002-03-12
Classification: F16B,Y10T

Abstract:
A spring fastener comprising a first side structure and a second side structure opposite the first side structure, the first side structure comprising a first wave-shaped multiple engagement spring having a first integral number of pairs of recesses and respective peaks, the second side structure comprising a second wave-shaped multiple engagement spring having a second integral number of pairs of recesses and respective peaks, the first integral number being different than the second integral number, wherein the first side structure and the second side structure are integrally connected to form a U-shaped configuration having a bottom end and a top end, the top end having a top end length and two opposite extremities, both the first spring and the second spring being partially cut from a respective side structure in a manner to extend away from the U-shaped configuration, and both the first spring and the second spring having a free high end disposed under the top end of the U-shaped configuration, and a low end connected to a respective side structure in the vicinity of the bottom end of the U-shaped configuration.