Patent ID: 7363945
Filing Date: 2008-04-29
Classification: F16D,Y10T

Abstract:
1. A method of forming a torque-transmitting coupling comprising: forming at least one fitting having at least one elongated tube conforming area, said at least one elongated tube conforming area forming at least one chamfer surface and having at least one overflow groove and a plurality of flat surfaces, said at least one elongated tube conforming area having at least one associated tube arc length that is approximately equal in length to a formed area length of said plurality of flat surfaces with said at least one overflow groove, wherein forming at least one chamfer surface comprises forming an upper surface, a lower surface, and a chamfer transitional surface that transitions between said upper surface and said lower surface and has a chamfer angle of approximately 20° to 25° relative to said lower surface; forming a tube onto said at least one fitting; procuring said tube; and forming an end portion of said tube onto said at least one elongated tube conforming area to form the torque-transmitting coupling.