Flexible tube means, especially for an expansible valve

Details Flexible tube means, especially for an expansible valve Flexible tube means, especially for an expansible valve

1982-11-22

1984-08-28

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflatable

138 89, 138109, F16L 5512

Patent

active

044678363

ABSTRACT:
An expandible plug-like device is disclosed for insertion into a conduit for closing or sealing off the conduit. The device has a flexible and elastic hose that is reinforced by at least two reinforcement plies made of flexible metal cables. The hose is secured at least one end of the device by the reinforcement plies being locked or held by rigid closure elements. These elements include an inner support element, an outer support element and a bottom seal sealing element. The inner and outer elements have conical locking surfaces which diverge towards one end of the device and a wedge is arranged between the end edges of the reinforcement plies in order to lock the plies against the support element and the reinforcement element.

REFERENCES:
patent: 2428189 (1947-09-01), Wolfram
patent: 2610869 (1952-09-01), Allison
patent: 2809056 (1957-10-01), Kaiser
patent: 3217282 (1965-11-01), Chevalier et al.
patent: 4191217 (1980-03-01), Kadono et al.
patent: 4413653 (1983-11-01), Carter

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