Ratchet-locking collar

Details Ratchet-locking collar Ratchet-locking collar

1997-10-27

1998-09-08

Johnson, Stephen M.

Firearms

Stock or barrel connectors

Barrel to receiver

89 3711, 403 93, 403105, F41A 2500

Patent

active

058027556

ABSTRACT:
A device that locks a threaded collar around a cylindrical gun barrel has a lunger extending in a radial direction through the collar. The plunger rides upon a series of ratchet teeth, disposed around the circumference of the gun barrel. The ratchet teeth include ramps and steps. As the collar is threaded onto the gun barrel, the plunger rides up the ramp of each ratchet tooth and drops into the step of the next ratchet tooth around the gun barrel. When in place, the plunger is pushed backwards against the wall of the ratchet tooth and arrests rotation of the collar in the unthreading direction. To remove the collar, the plunger is lifted clear of the ratchet tooth. With the plunger held clear of the step of the ratchet tooth, the threaded collar can be unthreaded.

REFERENCES:
patent: 856575 (1907-06-01), Elliott
patent: 1360539 (1920-11-01), Laurent
patent: 1563737 (1925-12-01), Froelich
patent: 1994489 (1935-03-01), Simpson
patent: 2345127 (1944-03-01), Kehne
patent: 2610426 (1952-09-01), Emerson
patent: 3790014 (1974-02-01), Mucsi
patent: 4294159 (1981-10-01), Wendler et al.
patent: 4602890 (1986-07-01), Duda

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