US 3,942,277 AGranted

Unitary firing pin and extractor

OwnerMaxwell G. Atchissoninventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

Firearm apparatus embodied in a semi-automatic, blowback operated rifle. The firearm includes a receiver made of two plates spaced apart to receive a bolt mechanism including a bolt mounted for reciprocal motion within a channel-shaped member; the operating spring for the bolt assembly is received in a slot within the bolt and is retained in place by the channel-shaped member. A unitary firing pin/extractor carried by the bolt functions as a firing pin and also provides multiple extractor functions. A simplified firing mechanism includes a hammer positioned to the rear of a cartridge magazine and operatively connected by a three-finger sear bar to a trigger mounted in front of the magazine. A safety mechanism is provided in conjunction with the trigger guard. Numerous components of this firearm apparatus provide multiple functions contributing to the economy and efficiency of the present firearm apparatus.

Claims7

Dependent claims

A firing pin for use in a firearm, comprising:

a flat unitary member including a base portion and a pair of arm portions extending from said base portion in generally parallel spaced apart relation to each other to terminate at respective ends spaced apart from said base portion;
said arm portions maintaining said ends spaced apart from each other a predetermined distance and being resiliently deformable with respect to each other to permit increase of said predetermined distance;
each of said spaced apart arm portions having an elongate inner surface facing in confronting relation toward the other of said arm portions, said elongate surfaces being mutually parallel to define a movement guide slot between said arm portions for the entire unitary firing pin;
first extractor member disposed at said end of one of said arm portions to engage the rim of a cartridge;
second extractor member disposed at said end of said other arm portion in spaced relation with said first extractor member to engage the rim of a cartridge disposed between said first and second extractor members;
and
means disposed on one of said arm portions in operative alignment with the primer of a cartridge disposed between said first and second extractor members.

4 more elements

A firing pin for mounting on the exterior of a flat bolt portion having a pair of parallel spaced apart longitudinal sides, the bolt portion having an elongate slot extending along one of said sides, an aperture disposed in one of said sides, a rear end, and a slot disposed in the rear end of the bolt portion, said firing pin comprising:

a flat unitary structure including an end member and a pair of arm members extending from said end member in generally parallel spaced apart relation to each other to terminate at respective ends spaced apart from said end member;
one of said arm members having an inner edge which is slidably receivable in the elongate slot provided in such bolt portion;
the other of said arm members having an inner edge which contacts and is slidably disposed along the other of such parallel spaced apart sides of the bolt portion;
said end member being received in the rear end slot of the bolt portion and having a portion extending rearwardly beyond the rear end slot to receive a hammer blow;
first extractor member disposed at said end of one of said arm members to engage the rim of a cartridge;
second extractor member disposed at said end of the other of said arm member in confronting spaced apart relation with said first extractor member to engage the firing member of a cartridge disposed between said first and second extractor members;
and
firing means disposed on one of said arm members in operative alignment to fire a cartridge disposed between said first and second extractor members.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/438,568Filed 1 Feb 1974 · division
Priority: 3 May 1972
Granted: 9 Mar 1976
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

F41A 15/14
For bolt-action guns: the ejector being mounted on or within the bolt; Extractors per se
F41A 19/13
Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms: percussion or firing pins, i.e. fixed or…
F41C 7/00
Shoulder-fired smallarms
F41A
Functional features or details common to both smallarms and ordnance