Metal working – Method of mechanical manufacture – Repairing
Patent
1979-02-08
1980-08-26
Combs, Ervin M.
Metal working
Method of mechanical manufacture
Repairing
2940208, 285223, 138 97, 138DIG8, 138DIG11, B22D 1910
Patent
active
042188121
ABSTRACT:
Method and means of rapidly repairing damaged portions of conduits and pipes which are difficult or impossible to weld, whereby in the vicinity of the pipes to be maintained prepared replacement pipe sections are stored each together with two associated quick-action unions which comprise an annular coupling body bridging the pipe ends to be joined and having at least one threaded portion and a sealing insert which may be compressed by means of plugs adapted to be screwed into the threaded portion, and after cutting out a portion of the pipe which includes the damaged area and the length of which corresponds substantially to the length of the prepared replacement pipe section the latter is inserted into the pipe line and sealed by rightening and quick-action.
REFERENCES:
patent: 398526 (1889-02-01), McCloskey
patent: 1997845 (1935-04-01), Adams
patent: 2068876 (1937-01-01), Snyder, Jr.
patent: 2595705 (1952-05-01), Rosecrans, Sr.
patent: 2673100 (1954-03-01), Shumaker
patent: 3488072 (1970-01-01), Allen et al.
patent: 3552781 (1971-01-01), Helland
patent: 3776577 (1973-12-01), Dickey
patent: 3865410 (1975-02-01), Chen
Combs Ervin M.
NYBY Bruk AB
Rising V. K.
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