Coupling or transition fitting for the connection of metal...

Details Coupling or transition fitting for the connection of metal... Coupling or transition fitting for the connection of metal...

2007-08-14

2007-08-14

Bochna, David (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S255000, C285S332100

Reexamination Certificate

active

10682614

ABSTRACT:
A pipe coupling having a radially deformable housing, wherein a pipe is freely insertable into the housing bore and a nut causes engagement of the grip ring with the pipe. The housing bore including a plurality of outwardly extending projections. The grip ring including a plurality of apertures adapted to receive the housing projections and a plurality of inwardly extending burst hole projections. Tightening of the nut causes the grip ring to be forced both radially and longitudinally, whereby the gripping member substantially restricts longitudinal and rotational movement of the pipe.

REFERENCES:
patent: 896204 (1908-08-01), Glauber
patent: 1802572 (1931-04-01), Phillips
patent: 3310323 (1967-03-01), Galloway et al.
patent: 3679239 (1972-07-01), Schmitt
patent: 4119335 (1978-10-01), Rieffle et al.
patent: 5593186 (1997-01-01), Harris
patent: 0690256 (1996-01-01), None
patent: 0 890 774 (1999-01-01), None
patent: 31334177 (1977-12-01), None
patent: 9060771 (1997-03-01), None
patent: 10169860 (1998-06-01), None

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