Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2852880 A
Publication typeGrant
Publication date23 Sep 1958
Filing date4 Nov 1955
Priority date4 Nov 1955
Publication numberUS 2852880 A, US 2852880A, US-A-2852880, US2852880 A, US2852880A
InventorsKauffman Clark E
Original AssigneeKauffman Clark E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Survival gun
US 2852880 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 23, 1958 c. E. KAUFFMAN SURVIVAL GUN Filed NOV. 4, 1955 4mm nf u v a nf. Il .m m

y far/ref 676172?? United States Parent SURVIVAL GUN Clark E. Kauffman, Leesburg, Fla. Application November 4, 1955, Serial No. 544,859

2 Claims. (Cl. 425-2) My invention relates -to weapons and has particular relation to a survival gun.

One purpose of my invention is to provide a survival gun which-may be easily and simply `broken down and reassembled within a lminimum space for carrying and storage.

Another purpose is to provide a survival gun of maximum simplicity and light weight.

Another purpose is to provide a fire-arm having a minimum sum of elements to provide a maximum in simplicity and a minimum in weight as well as to reduce the space required for carrying and packaging.

Another purpose is to provide a firearm which may be produced at a minimum cost.

Another purpose is to provide a simple survival firearm with which a variety of types of ammunition may be employed and which may be used, depending upon the type of ammunition, for the securing of game and even for limited self-defense.

Another purpose is to provide a survival gun which, consisting of this particular structure, may be dropped without a parachute by a plane to survivors and others on the ground.

Other purposes will appear from time to time in the course of the specification and claims.

I illustrate my invention more or less diagrammatically in the following drawings, wherein- Figure l is a side view with parts brokenaway and in partial cross-section;

Figure 2 is a detail View taken on the line 2 2 of Figure l;

Figure 3 is a detail view illustrating the trigger slot employed with my invention;

Figure 4 is a view taken on the line 4--4 of Figure 3.

Like parts are indicated by like numerals throughout the specification and claims.

lReferring now to the drawings and particularly to Figure l, the numeral 1 illustrates generally a butt plate which may, for example, be formed of metal. As illustrated in Figures l and 2, the butt plate has a generally at rear face 2 and a parallel forward face 3. The butt plate 1 may be generally rectangular in cross-section and may have its opposite corners rounded as indicated at 4 and 5 in Figure 2. Rigidly secured to the face 3 of the butt plate 1 and adjacent one end thereof, in any suitable manner, is a tubular stock member 6. The member 6 may have the threads 7 about the outer circumferential surface of its open end portion 8.

Threadedly engaged, when my survival gun is in its assembled condition illustrated in Figure l, with the end portion 8 is the angularly oset end portion 9 of the receiver `member 10, the end portion 9 having internal threads 11 for this purpose. While the connection of the receiver member with the stock 6 is shown as by means of the threads 7, 11, it will be understood that this connection could be a bayonet -or other type `of removable, manual connection without departing from the nature and scope of my invention.

The hollow tubular receiver member .10 has its opposite end internally threaded as at 12 to removably receive the tubular barrel 13 having at its inner end the external threads 14 for engagement with the threads 12 of the receiver member 10.

15 is a striker slidably mounted Within the receiver l0. The striker 15 has a forwardly `projecting tiring` pin 16. Secured within a forward portion of the receiver 10 is a block or blocks 17 having an axial opening or passage 1=8 therethrough. The passage 1'8 taking` the general form and shape ofthe pin 16 and positioned in alignment therewith to receive the pin 16. A yie1d-v able means, such as the spring 20, is positioned in the. receiver 10 behind the striker 15. The spring 20` has its forward end positioned in contact with the rear face 21 of the striker 15 and its opposite end seated againsty a rear plug or abutment 22 secured within the receiver 10 adjacent the rear portion 9 thereof. u i

A finger stud or trigger member 25 is connectedto the striker 15 through the medium of the reduced stud `26..

The stud 26 extends from the striker' 15 within' the receiver 10 through a trigger slot 30 in the lower portion of the receiver 10, the trigger portion 25 being positioned` outside the receiver 10 and having an annular shoulder or flange 25a for slidable movement along the receiver 10 on opposite sides of the slot 30. The slot 30. has an` L-shaped offset slot portion 31 adjacent its forward end, as illustrated best in Figure 3. The slot portion 31 is formed to receive the pin or stud portion 26 to providea safety lock for my survival gun. i

As best seen in Figure 1, the tubular stock 6 is adapted to provide storage for extra ammunition such as theammunition illustrated generally at 40, for example.

The butt plate 1 carries on its surface 3 and spaced from the stock 6, a rigidly connected socket member 42. The socket 42 has the internal threads 43 arranged to receive `the external threads 14 of the barrel-13. The barrel 13 is shown in its stored position in dottedlinesfof Figure l, threads 14 being engaged with the threads 43." As illustrated in Figure l, the barrel 13 is formed of a length such as to extend from the socket 42 to a position generally adjacent the outer end of the receiver member 10 to provide a storage or carrying assembly of my survival gun which shall occupy the smallest possible area.

Whereas I have described and illustrated a practical and operative device, nevertheless, many changes may be made in the size, shape, number and disposition of parts without departing from the spirit of my invention. I, therefore, wish my description and drawings to be taken as in a broad sense illustrative or diagrammatic, rather than as limiting me to my precise showing.

The use and'operation of my invention are as follows:

My survival gun is carried or stored with the barrel 13 in the position shown in dotted lines in Figure 1 and with the remainder of the elements of my survival gun in the position illustrated in Figure l. A supply of ammunition may be safely carried in the hollowl tubular stock 6.

When it is desired that the gun be used, the receiver 10 may be easily and simply disconnected from the stock 6. The required ammunition may be removed from the stock 6 and the receiver member 10 may be easily and simply connected to the stock 6. Of course, when the user carries ammunition in a belt or other carrier, it is unnecessary to remove the receiver 10 to obtain ammunition. In such case, the ammunition stored in the stock 6 may be allowed to remain therein as emergency ammunition. In either event, the user then disconnects the hollow tubular barrel 13 from the socket 42 and connects the barrel 13 to the outer end of the receiver 10. In the form illustrated in the drawing, the operator merely turns the barrel 13 to engage the threads 12, 14 of the Patented Sept. 23, 1958V 3 receiverf1'0 and barrel '13. Around of ammunition such as the yround 40, shown inthe yright hand upper portion of Figure 1, is carried in the barrel 13. The operator then merely moves the finger stud or trigger 25 from the'slot 31 laterally into'theislot30f The operator then drawsthe trigger 25 rearwardlyy against'the action-of the spring'f20. The operator then fires the gun by merely releasingfhis'finger from' the trigger 25, the spring 20 then urges the striker 15 rapidlyV forward in the receiver tof-bring the pin16l through the-passage 18 into contact with the ammunition 40 to re the gun.

` After the gun is fired, the operator removes the barrel 13 vfrom the receiver 10, extracts and discards the empty shell therefrom, if any, and-reloads for the next shot.l

When it is no longer necessary or desired to `tire my survival gun, the operator. merely removes the barrel from the'receiver, as it is shown in the shooting position, illustratedin the `upper portion of Figure 1, and attaches the barrel'13 to the socket 42 of the butt plate 1, as illustrated'in'thefcarrying position in the lower portion of" Figure 1.

I claim:

1. In a survival gun, a combination stock and ammunition'st'rage'member, said member comprising a plate, and av first, elongated, hollow tubular member having oneend thereof fixedly secured to one face of said plate, said tubular' member extending outwardly substantially perpendicularly from said plate, a receiver removably secured at one'end thereof to the outer, opposite end of said tubular member, said receiver having a springoperated triggerI element movably mounted and retained therewithin, and a barrel, said barrel comprising a second, elongated, hollow tubular member removably engagable with the opposite end of said receiver, said barrel having an internal diameter substantially equal to that of said rst tubular member, said plate having on said face thereof, at apoint spaced from said first tubular member, a socket element formed identically with the said opposite end ofsaid receiver and positioned to removably receive said barrel and to retain-said barrel in a plane substantially paralleling that occupied by said rst tubular member.

2. In a demountable survival gun, a combination stock and ammunition storage member, said member comprising a substantially flat plate, a rst, elongated, hollow, pipe-like, tubular member having one endI thereof xedly secured to one face of said plate, said member extending outwardly substantially perpendicularly from said plate and having an attaching formation at its outer end, a receiver member comprising a pipe-like member having an outer diameter substantially equal to that of said combination stock and storage member, and having attaching formations adjacent one of its ends formed and adapted for engagement with said stock member outer end, said receiver member having a spring-operated trigger element movably, mounted and retained therewithin and having attaching formations at its opposite end, a barrel comprising a second, elongated, hollow, pipe-like member having attaching formations at one of its ends formed and adapted for engagement with said attaching formations at said opposite end of said trigger member, said barrel having an inner andouter diameter substantially equal to that of said stock member, said plate having on said face thereof, at a point spaced from said stock member, an element havingattaching formations formed identically with the attaching formations at said opposite end of said receiver member and positioned to removably receive said barrel and to retain said barrel in a plane substantially paralleling that occupied by said rst tubular member, the combined length of said stock member and receiver member being substantially equal to the length of said barrel.

References Cited in the file of this patent UNITED STATES PATENTS 652,583 Baird June 26, 1900 1,775,178 Frantzius Sept. 9,l 1930 2,353,885 Fanger et al. July 18, 1944 2,365,188 Gorton Dec. 19, 1944 2,447,091 Pope Aug. 17, 1948 FOREIGN PATENTS 573,694- Great Britain Dec. 3, 1945

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US652583 *26 Jun 1900John T BairdFolding gun.
US1775178 *11 Sep 19299 Sep 1930Von Frantzius PeterPistol
US2353885 *18 Apr 194218 Jul 1944Cleve F ShafferShoulder mortar
US2365188 *10 Mar 194319 Dec 1944Gorton Walter TFirearm
US2447091 *18 Sep 194317 Aug 1948Pope Arthur JInterchangeable gun barrel and stock
GB573694A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3708902 *11 Aug 19709 Jan 1973Space Age Control IncSurvival weapon system
US4685235 *8 Sep 198611 Aug 1987Maremont CorporationBarrel alignment device in automatic weapon
US6295751 *26 May 20002 Oct 2001Charles J. PiwonskiFlare attachment for a firearm with a removable barrel
US649095911 Sep 200110 Dec 2002Walter M LavinRecoilless telescoping barrel gun
US696422010 May 200415 Nov 2005Walter M LavinFloating barrel handgun method of recoil elimination
US20050247186 *10 May 200410 Nov 2005Lavin Walter MFloating barrel handgun method of recoil elimination
U.S. Classification42/76.1, 42/106, 42/75.2, 42/6, 42/71.1
International ClassificationF41A11/00
Cooperative ClassificationF41A11/00
European ClassificationF41A11/00