Method of forming a bulge in the rotary tube of a locking mechan

Details Method of forming a bulge in the rotary tube of a locking mechan Method of forming a bulge in the rotary tube of a locking mechan

1988-02-18

1989-07-04

Eley, Timothy V.

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

29447, 29507, 29523, 29525, 72342, B21D 3908

Patent

active

048438570

ABSTRACT:
In a rotary tube locking mechanism, the rotary tube itself is bent to form a controlled bulge. The guide plate cooperates with this controlled bulge to provide an anti-racking function.

REFERENCES:
patent: 3198926 (1965-03-01), Melmoth
patent: 3329456 (1967-07-01), Orlander
patent: 3756671 (1973-09-01), White
patent: 3813117 (1974-05-01), Hackney et al.
patent: 4014138 (1977-03-01), White
patent: 4068409 (1978-01-01), White
patent: 4265102 (1981-05-01), Shimakata et al.
patent: 4727641 (1988-03-01), Kanatani et al.
patent: 4748836 (1988-06-01), Hoeboer et al.

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