Patent ID: 6103035
Filing Date: 2000-08-15
Classification: B29C,B29K,B29L,Y10T

Abstract:
A method of welding at least two members together, said method comprising the steps of:(a) selecting at least first and second members to be joined, each of said members having a sealing face, said members configured so as to be a stile or rail of a window or sash or door, said members having thermoplastic properties sufficient such that localized flow can occur through the application of frequency generated vibrations;(b) generating repetitive movements to at least one of said faces using a means for vibrating said one of said faces at a frequency range of at least about 50 Hz to 1000 Hz; said movements to said one of said faces creating a melt pool of material at said one of said faces which will create a weld upon solidifying when in contact with the other of said faces;(c) placing said other of said faces in contact with said one of said faces prior to said melt pool solidifying, thereby creating a weld between said first and second member.