Inflatable plug

Details Inflatable plug Inflatable plug

1984-06-18

1985-05-21

Marcus, Stephen

Pipes and tubular conduits

With closures and plugs

Inflatable

F16L 5512

Patent

active

045180156

ABSTRACT:
A novel inflatable plug for interrupting fluid flow in a pipe is provided which effects a stable, rigid seal while at the same time has a minimal axial length so as to be easily maneuverable. The plug is made from flexible, impermeable fabric and is provided with finely distributed, flexible inelastic connector elements or threads running in the axial direction and secured to opposed walls. When the plug is inflated, the threads prevent the opposed walls from separating a greater distance than the length of the threads. A complete plug assembly is also disclosed, comprising three such plugs in series, mounted on a bracing support frame and provided with a fail-safe inflation system.

REFERENCES:
patent: 1181984 (1916-05-01), Arni
patent: 1258402 (1918-03-01), Garner
patent: 2431897 (1947-12-01), Wensley
patent: 2912033 (1959-11-01), Neisler, Jr. et al.
patent: 2927609 (1960-03-01), Vander Lans
patent: 3036342 (1962-05-01), Fino
patent: 3289788 (1966-12-01), Evans et al.
patent: 3339931 (1967-09-01), Hundt et al.
patent: 3343708 (1967-09-01), Haas
patent: 3618639 (1971-11-01), Daley et al.
patent: 3915197 (1975-10-01), Piccirilli
patent: 3946761 (1976-03-01), Thompson et al.
patent: 4083384 (1978-04-01), Horne et al.
patent: 4293017 (1981-10-01), Lambe

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