Pipe joint for hydraulic pipe

Details Pipe joint for hydraulic pipe Pipe joint for hydraulic pipe

1992-03-04

1994-07-19

Nicholson, Eric K.

Pipe joints or couplings

Swivel

Pipe in socket type

285278, 285 98, F16L 1706

Patent

active

053302370

ABSTRACT:
A pipe joint can be attached to a hydraulic apparatus so as to be able to absorb vibrations of a pipe or the like connected to thereto. The pipe joint comprises a joint member having one end provided with an externally threaded portion in which external threads are cut, an annular clearance groove and an O ring squeezing surface, and an intermediate member to be fixedly screwed in the hydraulic apparatus, provided with an internally threaded portion in which internal threads are cut and an annular clearance groove. When the externally threaded portion of the joint member is screwed completely in the intermediate member, the externally threaded portion of the joint member drops into the annular clearance groove of the intermediate member, and the internally threaded portion of the intermediate member drops into the annular clearance groove of the joint member, so that the joint member is able to turn relative to the intermediate member.

REFERENCES:
patent: 1951460 (1934-03-01), Williams et al.
patent: 2533421 (1950-12-01), Bodnar
patent: 2560263 (1951-07-01), Wiegand et al.
patent: 2632659 (1953-03-01), Lee, II
patent: 2907590 (1959-10-01), Oswald
patent: 2926935 (1960-03-01), LaMarre
patent: 3145035 (1964-08-01), Hanback
patent: 3999781 (1976-12-01), Todd
patent: 4042262 (1977-08-01), Mooney et al.
patent: 4239262 (1980-12-01), Krupp et al.
patent: 4478438 (1984-10-01), Elorriaga, Jr.
patent: 4763693 (1988-08-01), Valley

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