Ammunition and explosives – Cartridges – Practice projectile type
Patent
1982-06-28
1984-02-14
Tudor, Harold J.
Ammunition and explosives
Cartridges
Practice projectile type
F42B 502, F42B 902
Patent
active
044309406
ABSTRACT:
A cartridge adapter for a firearm including a chamber, a barrel and a center firing pin, the cartridge adapter including a body portion with an axial passage including a first passage section extending from the free end of a smaller cylindrical outer section, a second passage section extending from the free end of a larger cylindrical outer section, a shoulder section adjacent the internal end of the second passage section, a third passage section slightly larger than the first passage section extending from the shoulder section toward the first passage section, a fourth tapered passage section joining adjacent ends of the first and third passage sections, a firing assembly disposed within and having a diameter and a length substantially the same as that of the second passage section, the firing assembly including a breech block member and a firing pin extension member, the breech block member including a throughbore extending from a central point on the free end of the breech block member to a peripheral point on the opposite end of the breech block member, the breech block member having a smooth cylindrical outer surface along substantially its entire length except for a transverse annular recess intermediate the length thereof, the firing pin extension member being disposed within the throughbore and extending from one end thereof to the opposite end thereof, the firing pin extension member having a smooth cylindrical outer surface, an O-ring disposed within the annular recess and contacting the second passage section throughout its length and further contacting both the second passage section and the firing pin extension member along a portion of its length.
REFERENCES:
patent: 803983 (1905-11-01), Brayton
patent: 1517702 (1924-12-01), Brubaker
patent: 2107034 (1938-02-01), Guthrie
patent: 2196136 (1940-04-01), Wood
patent: 2321737 (1943-06-01), Engel
patent: 3388665 (1968-06-01), Koehler
Tudor Harold J.
Urban Arthur L.
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