Pipe joints or couplings – With indicator – alarm or inspection means
Patent
1985-02-25
1988-05-03
Husar, Cornelius J.
Pipe joints or couplings
With indicator, alarm or inspection means
285106, 285109, 285420, 285920, 285351, F16L 5500
Patent
active
047415614
ABSTRACT:
A engageable joint having male pipe end and a female pipe end. The male and female pipe ends are removably engaged with gaskets. The gaskets are inflatable and arranged in a plurality of stages in the axial direction to inflatably seal a clearance between the pipe ends, and the joint has a clamp device for clamping the two pipe ends so that the pipe ends can be engaged and disengaged readily and reliably.
REFERENCES:
patent: 820437 (1906-05-01), Pehrson
patent: 3023995 (1962-03-01), Hopkins
patent: 3236544 (1966-02-01), Brown
patent: 3552777 (1971-01-01), Heinrich et al.
patent: 3884511 (1975-05-01), Hermanson
patent: 3997197 (1976-12-01), Marsh
patent: 4274664 (1981-06-01), Thominet
patent: 4302033 (1981-11-01), Evans et al.
patent: 4561679 (1985-12-01), Choate
patent: 4569540 (1986-02-01), Beson
Hashimoto Noritaka
Morita Eiji
Wadamoto Akira
Doryokuro Kakunenryo Kaihatsu Jigyodan
Husar Cornelius J.
Nicholson Eric K.
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