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US 4,049,941 AGranted
Method of repairing welded pipe sections
AssigneeLillie Evelyn Beatty
InventorBennie V. Beatty
Life of this patent
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Abstract
Welding connector comprising a housing, means for accommodating an electrode, an insulating cone for fitting within a conical passage, and magnetic means for securely fitting such cone to such passage. Method of passing electrical current from outside a metal pipe to inside thereof.
Claims4
A method of repairing welded pipe sections including passing current from outside welded sections of pipe to inside thereof, comprising the steps of:
- a. perforating the weld linking said sections;
- b. enlarging the perforation to a generally conically tapered configuration.
- c. connecting a current source to one end of an electrode;
- d. passing said electrode at least partially through said perforation;
- and
- e. electrically connecting the other end of said electrode to current utilizing means.
3 more elements
Dependencies are inferred from the claim text.