Breech-block system for a firearm

Details Breech-block system for a firearm Breech-block system for a firearm

2007-10-30

2007-10-30

Hayes, Bret (Department: 3641)

Ordnance

Automatic

Blow back breech block

C089S180000, C042S014000

Reexamination Certificate

active

11189283

ABSTRACT:
A breech system for a firearm exhibits a breech which can be locked in its movement in the barrel block by at least one locking element, which is pressed against the rear end of the barrel by means of a breech spring surrounding the rigid barrel of the weapon, the barrel being enclosed with the exception of the front and rear apertures, whereby the breech spring is supported at the rear section of the barrel and at least one link element subjected to tension connects the front end of the breech spring and the breech. In order to guarantee precise function and in a manner which is safe for the user, by means of a simple arrangement which is reproducible in manufacture, a purely mechanical delay element is inserted in the link between the breech (10) and the breech spring (9).

REFERENCES:
patent: 956431 (1910-04-01), Schmeisser
patent: 1138376 (1915-05-01), Hammond
patent: 1840054 (1932-01-01), Reising
patent: 2535156 (1950-12-01), Pastore et al.
patent: 3755948 (1973-09-01), Heinicke
patent: 4579037 (1986-04-01), Gillum
patent: 4760663 (1988-08-01), Zedrosser
patent: 5325617 (1994-07-01), Vojta et al.
patent: 6761102 (2004-07-01), Giza
patent: 6993864 (2006-02-01), O'Clair et al.

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