Patent ID: 6719186
Filing Date: 2004-04-13
Classification: B23K

Abstract:
In the connection of two pipe segments via welding operations, wherein the two pipes segments have fiberglass linings, a method for reducing the transfer of heat from said welding operations to said fiberglass linings comprising:coupling a first end of a weld shield device to a first pipe segment of said two pipe segments, wherein said weld shield device includes an insulation material and a sleeve body and wherein grooves on opposite ends of said weld shield device mate with ends of fiberglass liners of said two pipe segments; coupling a second pipe segment of said two pipe segments to a second end of said weld shield device, wherein said sleeve body creates a welding gap between said two pipe segments, and wherein said weld shield device at least partially occupies a cutout portion of said fiberglass linings; and welding the two pipe segments together at said welding gap, said insulation material reducing heat from transferring from said welding operations to said fiberglass linings.