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US 3,954,122 AGranted
Cold pressure weld, and low-pressure piping system capable of being made with this cold pressure weld
AssigneeUltra-Centrifuge Nederland N.V.
InventorsTheodorus Gerrit Abrahamsen, Tom DEBlieck
Life of this patent
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Abstract
Headers for low pressure piping system, preferably of the type that has multiple channels and is split in two parts, that can be jointed by means of grooves the side walls of which interlock at such a small angle to a perpendicular on the central plane that, upon pressing the parts of the weld together, the walls thereof become welded together as a result of friction, pressure and plastic deformation.
Claims4
A high vacuum piping system comprising
- a plurality of headers, at least one header of which is connected to a number of distributing pipes,
- a multiple header comprised of at least two of said plurality of headers, the central axes of said headers of said multiple header being located in one common central plane,
- means for connecting said headers of said multiple header together, said means comprising at least one jointing wall portion which is located between the headers it connects together and constitutes a part of each of them,
- said multiple header being divided along the central plane into two separate components, said components having cooperating junction surfaces, and
- means for hermetically sealing said separate components along said junction surfaces, said means comprising a cold state compression pressure weld at at least one junction surface.
2 more elements
Dependencies are inferred from the claim text.