Pipe joints or couplings – With assembly means or feature – Guide and support
Patent
1986-03-26
1988-02-16
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Guide and support
285 39, 285367, 285920, F16L 3500
Patent
active
047250801
ABSTRACT:
An apparatus for remotely assembling and disassembling a Graylock type coctor between a pipe and a closure for the pipe includes a base and a receptacle on the base for the closure. The pipe is moved into position vertically above the closure by a suitable positioning device such that the flange on the pipe is immediately adjacent and concentric with the flange on the closure. A moving device then moves two semicircular collars from a position free of the closure to a position such that the interior cam groove of each collar contacts the two flanges. Finally, a tensioning device automatically allows remote tightening and loosening of a nut and bolt assembly on each side of the collar to cause a seal ring located between the flanges to be compressed and to seal the closure. Release of the pipe and the connector is accomplished in the reverse order. Preferably, the nut and bolt assembly includes an elongate shaft portion on which a removable sleeve is located.
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patent: 3220245 (1965-11-01), Van Winkle
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Engineering Material and Design, vol. 21, No. 7, Jul. 1977, p. 16.
Cramer Charles E.
Josefiak Leonard J.
Arola Dave W.
Constant Richard E.
Hightower Judson R.
Reichert Earl T.
The United States of America as represented by the Department of
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