Thread protector

Details Thread protector Thread protector

2006-06-27

2006-06-27

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

End protectors

Threaded

C138S09600T, C285S333000

Reexamination Certificate

active

07066209

ABSTRACT:
In a protector for protecting a trapezoidal female thread of a pipe formed to an end thereof, the protector has a male thread formed thereto so as to be threaded with the female thread as well as the height of the thread of the male thread is made larger than the height of the thread of the female thread. With this arrangement, a surface treatment applied to the surface of the female thread or a male thread formed to the end of the pipe can be prevented from being damaged, and in particular, a surface treatment applied to a guide flank surface, a load flank surface, a corner portion, and the like of the thread can be prevented from being subjected to wear, damage, and the like.

REFERENCES:
patent: 1776528 (1930-09-01), Unke
patent: 2900435 (1959-08-01), Curtiss
patent: 4809752 (1989-03-01), Strodter
patent: 09-072467 (1997-03-01), None
patent: 2001-065752 (2001-03-01), None
patent: 2001-199469 (2001-07-01), None

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