Methods of providing a tube with a thread ring

Details Methods of providing a tube with a thread ring Methods of providing a tube with a thread ring

1975-03-05

1976-02-17

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29523, 285354, 2853824, B21D 3900, B23P 1100

Patent

active

039382400

ABSTRACT:
The plumbing assembly includes a tube having a free edge portion at which at least one inverted T-shaped projection is formed. The projection is located with its cross bar extending parallel to the free edge of the tube and the stem thereof extending from the cross bar towards the free edge and terminating at a point spaced therefrom. An annular ring formed with a threaded outer peripheral surface and a relatively smooth inner surface has at least one recess formed in its inner surface for receiving the stem portion of the T-shaped projection, thereby to prevent relative rotation between the tube and the ring.

REFERENCES:
patent: 384114 (1888-06-01), Barry
patent: 673971 (1901-05-01), Bartliff
patent: 779896 (1905-01-01), Wood
patent: 1290613 (1919-01-01), McDonough
patent: 1533886 (1925-04-01), Mueller et al.
patent: 1738915 (1929-12-01), Mueller
patent: 1953665 (1934-04-01), Wallace
patent: 2485960 (1949-10-01), Donahue
patent: 2829802 (1958-04-01), Paull
patent: 3400865 (1968-09-01), Hester
patent: 3497946 (1970-03-01), Tingley

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