U.S. patent application number 12/536984 was filed with the patent office on 2011-02-10 for m1 garand enhanced battle rifle(ebr)kit.
Invention is credited to Mark Anthony Lammers.
Application Number | 20110030546 12/536984 |
Document ID | / |
Family ID | 43533762 |
Filed Date | 2011-02-10 |
United States Patent
Application |
20110030546 |
Kind Code |
A1 |
Lammers; Mark Anthony |
February 10, 2011 |
M1 Garand Enhanced Battle Rifle(EBR)Kit
Abstract
The current invention is an improvement upon the M1 Garand
semiautomatic rifle U.S. Pat. No. 1,892,141, and is related to the
sighting and feed mechanism of that rifle. The M1 Garand
semiautomatic rifle U.S. Pat. No. 1,892,141 has a problem with only
being able to be loaded with an enbloc clip and not being able to
mount a center line optical sight or other devices over the
receiver of the rifle. The invention solves this problem by
producing a trigger housing assembly, box magazine assembly, op-rod
spring guide, operating rod catch and spring, and scope mount/rail
as a unified system or kit for the rifle, that all function on the
rifle without permanent alteration of the existing receiver or
barrel.
Inventors: |
Lammers; Mark Anthony;
(Delaware, OH) |
Correspondence
Address: |
Mark Anthony Lammers
314 Willow Run Ln
Delaware
OH
43015
US
|
Family ID: |
43533762 |
Appl. No.: |
12/536984 |
Filed: |
August 6, 2009 |
Current U.S.
Class: |
89/139 ; 42/50;
42/69.02; 89/191.01 |
Current CPC
Class: |
F41A 9/65 20130101; F41A
11/02 20130101; F41C 7/00 20130101 |
Class at
Publication: |
89/139 ;
42/69.02; 42/50; 89/191.01 |
International
Class: |
F41C 7/00 20060101
F41C007/00; F41A 3/00 20060101 F41A003/00; F41A 9/61 20060101
F41A009/61; F41A 5/00 20060101 F41A005/00 |
Goverment Interests
BACKGROUND OF THE INVENTION
[0001] The invention relates to the M1 Garand rifle (or US Service
Rifle Caliber 30 M1) used as the main battle rifle of the United
States from 1936 to 1957. The rifle had stellar reputation for
accuracy and reliability, but had two serious shortcomings that
shooters today have complained about. The rifle can only feed from
8 round enbloc clips fed from the top of the receiver, and can only
mount optics on the side of the receiver for this reason. The
limited ammunition capacity of 8 rounds, and limited range of
optics due to the off center mount, have limited the rifles use for
longer range shooting and, tactical shooting matches where larger
capacity rifles have an advantage. What is needed to solve both
problems is one complete kit system, to be installed on the rifle
at one time, increasing both ammunition capacity with box magazines
loaded from the bottom, and a center line receiver mounted optics
rail. Since the M1 is also a collector rifle, the kit must complete
it's design functions with no permanent modification to the rifle.
Claims
1. A specified purpose kit consisting of a trigger housing
assembly, magazine assembly, operating rod spring guide, operating
rod catch assembly, and scope mount assembly, for the purpose
converting an M1 rifle to detachable box magazine feeding, and
in-line with bore receiver mounted optics or accessory sighting
systems, using standardized industry accepted mounting rings. The
purposes of the kit to be accomplished with permanent alteration of
the receiver/barrel group of the rifle.
2. The trigger housing assembly of claim 1. above to consist of a
machined, cast, or other manufacture method housing of steel or
other material to fit in place of the standard trigger housing on
the M1 rifle and utilize all parts of the standard housing except
for parts supplied with the new housing. The new part to provide
full function of the standard part in addition to fixing the
magazine box in place in the rifle.
3. The Magazine assembly of claim 1. above to consist of a box
shaped part, stamped, machined, cast or molded of steel or other
suitable material and sized to fit the magazine well of the M1
rifle receiver without modification to said receiver with internal
spring and follower designed for the part. The part of sufficient
length to hold the desired number of rounds. The part cut to work
with the trigger housing above.
4. The Operating Rod Spring Guide of claim 1. above to consist of a
steel or other material part, lathe turned, cast, or made by other
method to replace the follower rod of the M1 rifle and its purpose
of guiding the operating rod spring. The part to mount in an
existing hole on the rifle.
5. The Operating Rod Catch Assembly of claim 1. above, to consist
of a machined, cast, or other method of manufacture part of steel
or other material, and a standard method of manufacture spring for
its operation. The part to replace the part of the same name on the
M1 rifle and function in its place and mount in a similar
manner.
6. The Scope Mount Assembly of claim 1. above, to consist of a
mounting block and rail, both parts machined, cast, or made by
other method of steel or suitable materials, designed to replace
the rear sight of the M1 rifle and to by design and mechanical
means attach to points of the rear sight base without permanent
modification of the receiver in any way. The rail to have slot cuts
and dimensions to interface with both Mil Std-1913 scope rings and
the Weaver commercial type rings.
Description
SUMMARY OF THE INVENTION
[0002] The invention is a kit that converts the M1 rifle to box
magazine feed, and center line receiver mount optics and
accessories, with no permanent modification to the rifle.
BRIEF DESCRIPTION OF THE DRAWINGS:
[0003] FIG. 1. Trigger Housing Assembly Side view
[0004] FIG. 2. Trigger Housing Assembly Bottom view
[0005] FIG. 3. Magazine Assembly
[0006] FIG. 4 Operating Rod Spring Guide
[0007] FIG. 5. Operating Rod Catch
[0008] FIG. 6. Operating Rod Catch Spring
[0009] FIG. 7. Scope Mount Assembly
DETAILED DESCRIPTION OF THE INVENTION
[0010] The invention is a kit designed to address two problems that
shooters have recognized in the M1 Garand Rifle/US Rifle Caliber 30
M1, U.S. Pat. No. 1,892,141, the limited capacity of the 8 round
enbloc clip and the side mount optical sight requirement. The kit
converts the M1 rifle to Box magazine feeding by means of replacing
the trigger housing with the part in FIGS. 1 and 2, the follower
Rod with the new Operating Rod Spring Guide in FIG. 3, Operating
Rod Catch with a new part of the same name in FIG. 4 along, with
the addition of the spring in FIG. 5. The second problem of being
forced to mount the optical sights on the side of the receiver is
addressed by replacing the rear sight with the part in FIG. 5, the
scope mount and rail assembly.
[0011] The parts in FIGS. 1 and 2, the trigger housing assembly can
be made by methods well known to the industry, machining, forging,
casting or other methods, the preferred material would be steel,
but other materials such as aluminum, plastics or other metals
could probably be used. Proper Heat treatment by any standard
method will aide in toughness and wear characteristics if steel or
other metals are used.
[0012] The Part in FIG. 3. The magazine assembly is formed from
steel, aluminum or other material of sufficient strength and
appropriate wear characteristics to complete is designed function.
The part also contains a follower made steel, aluminum or other
material formed by stamping, milling, forging, casting or other
methods, mounted on wire spring to feed the rounds in consistent
manner.
[0013] The part in FIG. 4. The Operating Rod Spring Guide is
preferably made of steel or other metal, and is best turned on
lathe, with cut made by milling or other methods, but any standard
method of getting the same shape would suffice. Other materials
such as aluminum or other alloys could also be used, along with
some plastics. Again heat treatment will be key in aiding in the
wear and strength characteristic of the part.
[0014] The part in FIG. 5. The Operating Rod Catch is again made
from heat treated steel in the ideal, but could be made other
suitable materials as long as they are of sufficient strength and
wear profiles. The part is made by milling in the preferred case,
but EDM machining or other methods to achieve the same result would
be sufficient. The shape of the part is the ideal shape but
slightly differing shapes can work as well, including those
catching the op rod on both sides of the spring guide.
[0015] The Operating Rod Catch spring in FIG. 6. is the preferred
shape but others could be used to power the part in FIG. 4 as well,
this spring is made of music wire but other materials could be
used.
[0016] The part in FIG. 7. the scope mount assembly is made of
steel or other suitable material machined, cast or made by other
method to have the shape and characteristics for the designed
purpose. There can be several shapes of the base to mount the rail,
and all would work, the one shown was the easiest to machine and
illustrate.
[0017] The end user of the invention will see the benefit of
enhanced accuracy at longer ranges, less frequent reloads, easier
reloading of the rifle, and easier use in multiple roles for both
sporting and competition use. The rifle will also be easily
restored to its original configuration as no permanent alterations
have been made by the installation of the kit.
[0018] While the listed configuration is the preferred embodiment
of the invention those skilled the art will see that there can be
minor changes in methods or materials or design that will not
depart from the invention, and therefore it is aimed to cover all
such changes which fall within the true spirit and scope of the
invention.
* * * * *