Metal working – Method of mechanical manufacture – With testing or indicating
Patent
1986-03-14
1988-12-13
Callaghan, Thomas F.
Metal working
Method of mechanical manufacture
With testing or indicating
285197, 285373, 138 99, B23Q 1700
Patent
active
047900580
ABSTRACT:
A clamp for forming a seal on a pipeline section, the clamp comprising a pair of complementary clamp members to be clamped together, each clamp member having an inner surface with a pair of axially spaced, circumferentially extending circumferential seals, and one clamp member having a pair of circumferentially spaced longitudinal seals which extend axially to bridge the gaps between the opposed circumferential ends of the pair of circumferential seals to define four junction zones where the circumferential seals and the longitudinal seals abut, and retention means at each junction zone to connect the circumferential and longitudinal seals together in the retention zones, and at the same time connect the seals to the clamp member at the junction zones. The clamp includes corner seals to provide back-up sealing for the junction zones. The clamp includes heat protection grooves to protect certain of the clamp seals. The clamp may include a pipe branch to provide a hot tapping facility. Embodiments of the clamp have an optimised body design to provide for weight minimization.
REFERENCES:
patent: 1913030 (1933-06-01), Hux
patent: 1930194 (1933-10-01), Dillon
patent: 2839320 (1958-06-01), Hill
patent: 3003793 (1961-10-01), Pitt
patent: 3024046 (1962-03-01), Frost et al.
patent: 3078108 (1963-02-01), Smith
patent: 3396753 (1968-08-01), Foster et al.
patent: 3954288 (1976-05-01), Smith
patent: 4284298 (1981-08-01), Kaufmann, Jr.
patent: 4417755 (1983-11-01), Gittleman
patent: 4486036 (1984-12-01), Storke et al.
patent: 4522434 (1985-06-01), Webb
patent: 4530143 (1985-07-01), Casarcia
patent: 4593942 (1986-06-01), Loker
patent: 4603887 (1986-08-01), Mayfield et al.
patent: 4652023 (1987-03-01), Timmons
patent: 4671544 (1987-06-01), Ortloff
PCT Search Report
"An Introduction to the Design and Behavior of Bolted Joints", Mar. 31, 1983; pp. 230-235.
Plido Pipe Clamp Catalog, Catalog 3000, 35 pages.
Callaghan Thomas F.
International Clamp Company
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