Tube thread forming apparatus and method

Details Tube thread forming apparatus and method Tube thread forming apparatus and method

2007-05-01

2007-05-01

Crane, Daniel C. (Department: 3725)

Metal deforming

By three or more coacting relatively movable tools

Concurrently actuated tools

C072S353600, C072S354200, C072S370040, C072S370050

Reexamination Certificate

active

11022423

ABSTRACT:
A tube partial thread forming apparatus and method is disclosed. A tube is placed on the apparatus around internal die sections, which are separated by a mandrel to cause the internal die sections to engage the tube. stripper pieces are moved into engagement around the outer surface of the tube to secure and support the tube. External die sections extend through the stripper pieces and engage the tube and form partial threads thereon.

REFERENCES:
patent: 279118 (1883-06-01), Allen
patent: 1268789 (1918-06-01), Bryant
patent: 1368890 (1921-02-01), Canfield
patent: 1823047 (1931-09-01), Hothersall
patent: 3254619 (1966-06-01), Green
patent: 5694802 (1997-12-01), Tanaka et al.

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