Method of forming a spacer used to space end to end piping

Details Method of forming a spacer used to space end to end piping Method of forming a spacer used to space end to end piping

1992-07-13

1993-10-19

Crane, Daniel C.

Metal deforming

By tool-couple embodying nonplanar tool-face

With complementary tool-faces

72385, 140 88, 29173, 2989014, 29888073, 227143, B21F 3700

Patent

active

052535070

ABSTRACT:
A method of forming undulate protrusions on a split ring with the ring placed in a die to first form a center protrusion and then to form the other protrusions located between the first formed protrusion and the ring ends.

REFERENCES:
patent: 1668297 (1928-05-01), Wuerfel
patent: 1689608 (1928-10-01), Williams
patent: 2854301 (1958-09-01), Lutz
patent: 3748889 (1973-07-01), Miller

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