Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1976-02-27
1977-03-29
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285231, 285356, 285423, 285DIG16, F16L 3500
Patent
active
040145689
ABSTRACT:
In a joint for pipe, a first sleeve surrounds and is bonded to the leading edge of a pipe section. A second sleeve, which acts as a male nut, is positioned on the pipe section rearward of the first sleeve, is externally threaded, and has an internal diameter greater than the diameter of the pipe section upon which it is mounted. An elastomeric spacer ring is positioned intermediate the two sleeves. A collar is bonded to and extends from an end of a second pipe section. The collar has an internally threaded portion adjacent its forward end for threaded engagement with the externally threaded second sleeve on the other pipe section, and has a second portion rearward of the threaded portion which is adapted to receive the first sleeve and spacer ring on the other pipe section. This second portion of the collar has an internal annular groove and a sealing ring in the groove for engagement by the first sleeve. The first sleeve is tapered with respect to the adjoining portion of the collar so that when the parts are connected, a ball and socket arrangement of predetermined angular capability is provided for the pipe sections while maintaining sealing engagement between the sealing ring and the adjoining sleeve.
REFERENCES:
patent: 2294160 (1942-08-01), Crone et al.
patent: 2560263 (1951-07-01), Wiegrand et al.
patent: 3236543 (1966-02-01), Mueller
patent: 3701548 (1972-10-01), McGuire
Carter J. Warne
Neher Martin Duane
Arola Dave W.
Ciba-Geigy Corporation
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