Protective device for pipes

Details Protective device for pipes Protective device for pipes

1982-04-09

1984-03-27

Shepperd, John W.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 91, 138 96T, 138104, 73335, 116 67R, F16L 5524

Patent

active

044387830

ABSTRACT:
A device that protects the inner surface of pipes from rust is disclosed. This device is especially useful for pipes provided with threading and a thread guard at their threaded ends to form an airtight seal. The device comprises a holder that can be inserted in the pipes on which a number of receptacles are attached at intervals. The receptacles are filled with a drying agent or dessicant and are made of a moisture permeable material. A moisture indicator may be placed in the base of the thread guard.

REFERENCES:
patent: 1705837 (1929-03-01), Rowan
patent: 2716338 (1955-08-01), Blinn
patent: 2737205 (1967-03-01), Stringfield
patent: 2826222 (1958-03-01), Case
patent: 2977993 (1961-04-01), Scherer
patent: 3052083 (1962-09-01), Piquerez
patent: 3085424 (1963-04-01), Berg
patent: 3246758 (1966-04-01), Wagner
patent: 3260234 (1966-07-01), Serrano et al.

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