Protective closure for external pipe threads

Details Protective closure for external pipe threads Protective closure for external pipe threads

1976-06-10

1978-03-21

Phillips, Charles E.

Pipes and tubular conduits

End protectors

Threaded

215275, 215329, 220320, 285DIG2, B65D 5906

Patent

active

040797562

ABSTRACT:
A plastic closure securely mounted on the external threads at the end of a pipe, tubing, casing, or the like for protecting the external threads from damage. The closure comprises a tapered sleeve which is normally uncompressed and compressed by tightening a metal strap enclosing the sleeve for securing it to the pipe end. When the closure is mounted on the pipe end in its compressed condition, threads on the inner peripheral surface of the sleeve are urged into engagement with the external pipe threads for tightly securing the closure to the pipe end. The sleeve has a conical seat for the strap in its normal uncompressed condition, and in the compressed condition of the sleeve the seat is cylindrical relative to the axis of the sleeve. The sleeve has a flat surface on which the strap seal is placed and a slot for receiving a projection on the strap to prevent circumferential movement of the strap before and during tightening.

REFERENCES:
patent: 1349789 (1920-08-01), Schirra
patent: 1906182 (1933-04-01), Riney
patent: 2039757 (1936-05-01), Von Till
patent: 2121436 (1938-06-01), Lytle
patent: 2312513 (1943-03-01), Wilson
patent: 2989087 (1961-06-01), Higgins

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