Pivotal screwed fitting

Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool

Patent

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Details

285158, 285190, F16L 2700

Patent

active

041427416

ABSTRACT:
A pivotal screwed fitting for joining pipes has a hollow body including a coupling nipple for attachment to the end of one of the pipes. The hollow body is adjustable about the axis of the coupling nipple. The fitting further has a hollow screw arranged in the hollow body. The hollow screw has a threaded end portion to be screwed into another one of the pipes for tightening the hollow body to the last-named pipe. The hollow screw has a plurality of ports which maintain communication between an axial blind bore of the hollow screw and an annular channel defined together by the hollow body and the hollow screw. A connecting passage defined by a wall of the hollow body maintains communication between the coupling nipple and the annular channel. The passage widens from the coupling nipple in the direction of the annular channel; the wall defining the connecting passage has an at least approximately rotationally symmetrical configuration with respect to the axis of the coupling nipple of the hollow body.

REFERENCES:
patent: 899582 (1908-09-01), Weston
patent: 1057289 (1913-03-01), Sieber
patent: 1095757 (1914-05-01), Wentz
patent: 1532774 (1925-04-01), Page
patent: 1838740 (1931-12-01), Burnham
patent: 2307328 (1943-01-01), Martin
patent: 2492494 (1949-12-01), Mueller
patent: 2872217 (1959-02-01), May
patent: 2943868 (1960-07-01), Hanback

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