Two-part protector for a pipe end which is provided with an...

Details Two-part protector for a pipe end which is provided with an... Two-part protector for a pipe end which is provided with an...

2005-12-09

2010-12-28

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

End protectors

Threaded

C138S089000, C215S217000

Reexamination Certificate

active

07857007

ABSTRACT:
A two-part protector for a pipe end provided with an external thread or internal thread has a substantially cylindrical thread part of plastic material that covers the thread of the pipe end and further has a sleeve of metal that is also substantially cylindrical and supports the threaded part rearwardly. The threaded part and the sleeve engage one another lockingly by locking projections and locking cutouts. The sleeve, with a terminal edge that is leading when realizing the locking action, is pressed at least near the locking recesses tightly against the threaded part.

REFERENCES:
patent: 4157100 (1979-06-01), Turk
patent: 4337799 (1982-07-01), Hoover
patent: 4487228 (1984-12-01), Waldo et al.
patent: 4655256 (1987-04-01), Lasota et al.
patent: 4957141 (1990-09-01), Dreyfuss et al.
patent: 5195562 (1993-03-01), Dreyfuss et al.
patent: 0128575 (1984-12-01), None
patent: 0297493 (1989-01-01), None

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