Loading patent…
AssigneeWisconsin Centrifugal, Inc.
InventorsLawrence D. Koltz, Herbert E. Pritzlaff
Estimating the term…
An apparatus and method for concentrically and radially aligning and welding together two tubular metal components, such as a metal pipe or tubing, and a tubular flanged member, or two or more metal pipes or tubings. The adjacent end wall portions of the two tubular metal components are positioned against each other in contiguous or abutting relationship; a segmented generally cylindrical or tubular mandrel or split sleeve unit, embodying component radial segments, and having an inflatable elastic tubular member or boot arranged therein, is inserted into the segmented tubular mandrel or split sleeve unit; the inflatable elastic tubular member or boot is then inflated to expand the component radial segments of the segmented tubular mandrel or split sleeve unit radially outwardly against the internal surfaces of the tubular metal components to position and hold them in properly mated or concentrically axially and radially aligned position and in contiguous or abutting relationship with and relative to each other; the contiguous or abutting end wall portions of the tubular metal components are then preliminarily or tack-welded together from outside the tubular metal components while a stream of argon, or other inert gas, is discharged radially outwardly into the weld area from within the segmented tubular mandrel into the weld area during the preliminary or tack-welding operation to insure an oxide-free preliminary or tack-weld joint; the inflated elastic tubular member or boot is then partially deflated, and the segmented tubular mandrel or split sleeve unit and the deflated elastic tubular member or boot are withdrawn from the thus preliminarily or tack-welded tubular metal components; and the welding operation is then completed by filling in the weld area with weld metal from outside the tubular metal components while a stream of argon or other inert gas is blown into the weld area from the welding head to assure an oxide-free completed weld joint.
An apparatus for concentrically and radially aligning tubular metal components together in coaxial and radial alignment prior to welding them together, in which the said tubular metal components have internal peripheral wall surfaces providing a central internal bore in the said tubular metal components, and the said tubular metal components having outer peripheral wall surfaces and contiguous inner end wall portions each provided with an annular groove and with the said annular grooves coacting to provide an annular groove and weld area between the said contiguous inner end wall portions on the outer peripheral wall surfaces of the said tubular metal components, the said apparatus comprising:
An apparatus for aligning and retaining tubular metal components together in aligned relationship during the operation of preliminarily welding them together, in which said tubular metal components have internal peripheral wall surfaces providing a central bore in the said tubular metal components and the said tubular metal components have outer peripheral wall surfaces and contiguous end wall portions having weld areas which are to be welded together, the said apparatus comprising:
An apparatus for aligning and retaining tubular metal components together in aligned relationship during the operation of preliminarily welding them together, in which said tubular metal components have internal peripheral wall surfaces providing a central bore in the said tubular metal components and the said tubular metal components have outer peripheral wall surfaces and contiguous end wall portions having weld areas which are to be welded together, the said apparatus comprising:
A method of coaxially and radially aligning the two tubular metal components and welding contiguous inner end wall portions thereof together in coaxially and radially aligned relationship, which comprises the steps of:
A method of coaxially and radially aligning two tubular metal components and welding contiguous inner end wall portions thereof together in coaxially and radially aligned relationship, which comprises the steps of:
An apparatus for concentrically and radially aligning metal components together in coaxial and radial alignment prior to welding them together, in which the said tubular metal components have internal peripheral wall surfaces providing a central bore in the said tubular metal components, and the said tubular metal components having outer peripheral wall surfaces and contiguous inner end wall portions each provided with a first annular groove and with the said first annular grooves coacting to provide a weld area between the said contiguous inner end wall portions and on the outer peripheral wall surfaces of the said tubular metal components, the said apparatus comprising:
An apparatus for concentrically and radially aligning and welding tubular metal components together in coaxial and radial alignment prior to welding them together, in which the said tubular metal components have internal peripheral wall surfaces providing a central internal bore in the said tubular metal components, and in which the said tubular metal components have outer peripheral wall surfaces and contiguous inner end wall portions each provided with an annular groove and with the said annular grooves coacting to provide a weld area between the said contiguous inner end wall portions and on the outer peripheral wall surfaces of the said tubular metal components, the said apparatus comprising:
An apparatus for concentrically and radially aligning and welding together a metal pipe or tubing and an annular flanged member of different internal diameters in coaxial and radial alignment prior to welding them together, in which the said metal pipe or tubing and the said annular flanged member have internal peripheral wall surfaces providing a central internal bore in the said metal pipe or tubing and in the said annular flanged member, and the said metal pipe or tubing and the said annular flange member having outer peripheral wall surfaces and contiguous inner end wall portions each provided with an annular groove and with the said annular grooves coacting to provide a weld area between the said contiguous inner end wall portions and on the external peripheral wall surfaces of the said tubular metal components, the said apparatus comprising:
An apparatus for concentrically and radially aligning and welding together tubular metal components of varying internal diameters in coaxial and radial alignment prior to welding them together, in which the said tubular metal components have internal peripheral wall surfaces providing a central internal bore in the said tubular metal components, and in which the said tubular metal components have outer peripheral wall surfaces and contiguous inner end walls portions each provided with an annular groove and with the said annular grooves coacting to provide a weld area between the said contiguous inner end wall portions and on the outer peripheral wall surfaces of the said tubular metal components, the said apparatus comprising:
An apparatus for concentrically and radially aligning tubular metal components in coaxial and radial alignment prior to welding them together, in which one of the said tubular metal components is an elongated metal pipe or tubing, and in which the said tubular metal components have internal peripheral wall surfaces providing a central internal bore in the said tubular metal components, and in which the said tubular metal components have external peripheral wall surfaces and contiguous inner end wall portions each provided with an annular groove and with the said annular grooves coacting to provide a weld area between the said contiguous inner end wall portions and on the external peripheral wall surfaces of the said tubular metal components, the said apparatus comprising:
An apparatus for aligning and retaining tubular metal components together in aligned relationship during the operation of preliminarily welding them together, in which said tubular metal components have internal peripheral wall surfaces providing a central bore in the said tubular metal components and the said tubular metal components having external peripheral wall surfaces and contiguous end wall portions having weld areas which are to be welded together, the said apparatus comprising:
A method of coaxially and radially aligning two tubular metal components and for welding contiguous inner end wall portions thereof together in coaxially and radially aligned relationship, which comprises the steps of:
Dependencies are inferred from the claim text.