Connecting or repair device

Details Connecting or repair device Connecting or repair device

1981-08-13

1984-08-14

Callaghan, Thomas F.

Pipe joints or couplings

Packed

Sleeve

285381, 285DIG16, 138 99, 228152, F16L 2106

Patent

active

044653093

ABSTRACT:
A device is provided for connecting together the ends of pipes or tubing or for repairing a fault in a pipe or tubing. The device is comprised of a resilient sheet member in the form of a coil having a layer of heat sensitive bonding material applied to the inner surface of the resilient sheet member. The resilient sheet member coil is formed to an inner diameter slightly less than the outer diameter of the pipe or tubing. In the case where the resilient sheet member is used as a connector, the resilient sheet member is sprung to a diameter larger than the outer diameter of the pipe or tubing and retained in this expanded form by a heat sensitive material which melts upon being heated to allow contraction of the connector. At the same time, the heat sensitive bonding material forms a tight bond to the two ends of the pipes or tubing to be connected. Where the device is utilized as a repair device, the ends of the resilient sheet member are adapted to be sprung apart so that the device may be mounted over the pipe or tubing at the position of the fault. Once mounted in position, the resilient member springs back to its original condition applying an inward force to the outer diameter of the pipe or tubing. Upon heating, the heat sensitive material melts to form a tight bond to the pipe and at least partially fills the fault in the pipe or tubing.

REFERENCES:
patent: 1731991 (1929-10-01), Tracy
patent: 3154330 (1964-10-01), Clark et al.
patent: 3229998 (1966-01-01), Pennington
patent: 3329740 (1967-07-01), Battersby
patent: 3415287 (1968-12-01), Heslop et al.
patent: 3649055 (1972-03-01), Nilsen
patent: 3689114 (1972-09-01), Meserole
patent: 3770556 (1973-11-01), Evans et al.
patent: 3913444 (1975-10-01), Otte
patent: 4092193 (1978-05-01), Brooks
patent: 4338970 (1982-07-01), Krackeler et al.

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