Pipe joints or couplings – Elbow
Patent
1987-07-22
1990-04-24
Arola, Dave W.
Pipe joints or couplings
Elbow
285158, 285330, 285356, 285906, 156 731, F16L 5500
Patent
active
049194615
ABSTRACT:
A pressure cylinder, such as a master cylinder or wheel cylinder for an hydraulic vehicle braking system has a plastic molded body within which a threaded insert is engaged and restrained rotationally and axially. A seal is positioned within the body between surfaces of the insert and body. The insert provides a seat against which is clamped, in use, a corresponding seat on a flared end of a pipe, the letter being retained within the body by a pipe nut threadedly engaged with the insert. Long-term thread torque and clamping force are sustained by the insert rather than by the plastic body which can be subject to "creep".
REFERENCES:
patent: 2570477 (1951-10-01), Paquin
patent: 2776151 (1957-01-01), Harkenrider
patent: 3702707 (1972-11-01), Rosun
patent: 4126338 (1978-11-01), Coel et al.
patent: 4674775 (1987-06-01), Tajima et al.
patent: 4714278 (1987-12-01), Gassmunn
Arola Dave W.
Lucas Industries Public Limited Company
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