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Publication numberUS3022598 A
Publication typeGrant
Publication dateFeb 27, 1962
Filing dateSep 14, 1960
Priority dateSep 14, 1960
Publication numberUS 3022598 A, US 3022598A, US-A-3022598, US3022598 A, US3022598A
InventorsWikstrom Hugo M
Original AssigneeWikstrom Hugo M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Safety device for a revolver
US 3022598 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Feb. 27, 1962 H. M. WIKSTROM 3,022,598


3,022,598 SAFETY DEVKIE FOR A REVQLVER Hugo M. Wilrstrom, Port Washington, N.Y. (60 E. 42nd St., New York, N.Y.) Filed Sept. 14. 1960, Ser. No. 56,019 1 Claim. ((Ii. 42-66) This invention relates to a safety device for guns.

The all too frequent headlines relating to accidental though the guns are stored with the chamber under the hammer unloaded, many accidents have still occurred. For example, with revolvers, the empty chamber under the hammer prevents a blow on the hammer from accidentally discharging the weapon but does not prevent an accidental advancement of a fresh round by accidentally pulling the trigger of the revolver.

It is, therefore, a further object of this invention to provide an improved safety device for revolvers which would prevent accidental rotation of the cylinder of the revolver.

This invention will be more clearly understood by reference to the following description taken in combination with the accompanying drawings, of which:

FIG. 1 is a plan view of a revolver with the safety device installed;

FIG. 2 is an exploded elevation view of the components of the safety device in accordance with this invention;

FIG. 3 is a partially sectioned view showing the safety device installed within the chamber of a revolver cylinder;

FIG. 4 is a partially sectioned view showing the safety device within the chamber of a revolver cylinder and extending into the breech of the revolver; and

FIG. 5 is a view taken along lines 5-5 of FIG. 4.

In FIG. 1 there is shown a revolver with the safety device installed. As will be noted, the safety device is extremely simple comprising a fiber washer 12 through which extends a bar 14 having apertures spaced along the length of the bar through which a clip or a lock 16 may be inserted. Thus, with the safety device installed, the gun may'still be handled and easily transported. However, transporting of the gun does not in any way affect the security of the safety device. The construction of features of the safety device may best be seen by reference to FIGS. 2-5.

In the figures there is shown the safety device comprising the bar 14, the lock washer 12, the clip or lock 16 and a cartridge-like dummy round 18 having an extendable bullet portion 20.

The dummy round is formed to the same outline dimensions as that of the cartridge used in the revolver to be safetied. It is then inserted within the chamber 22 of the cylinder 24 until the annular lip 26 of the dummy round fits in the chamber in the same fashion as would a normal round of ammunition. Mounted within the cartridge case 28 of the dummy round 18 is a movable bullet 20 biased into the retracted position through the co-action of spring 30 on the shoulder formed on the bullet 20. The bullet is preferably formed of relatively soft plastic to protect the breech of the gun against abra- States Patent 0 sion by the bullet portion as the safety device is operated.

The bullet portion 20 is provided with a rectangular aperture 34 extending therethrough at the terminus of which is provided a rectangular recess 36 the major axis of which is at right angles to the major axis of the rectangular aperture. To safety the gun, the rod 14 is inserted through the aperture until the ears 38 are within cavity 40. The rod is then rotated degrees and pulled outward so that the ears 33 will engage the recess 36. Once engaged, the rod is locked in position so that it cannot he accidentally dislodged therefrom but must be deliberately pushed further into the gun and rotated before it can be disengaged from the bullet portion 20. Other locking means are, of course, equally effective.

The rod 14 is then pulled outwardly to extend the bullet portion 20 into the breech 42 of the revolver as is best shown in FIG. 4. The extension is continued for any convenient distance until one of the apertures 44 through rod 14 is aligned with the exterior of the washer 12. At this time, a clip 16 may be inserted through the hole. Alternatively, a lock may be applied through the hole.

As may thus be seen the safety device not only affords safety against accidental discharge through a blow on the hammer of a revolver but also prevents accidental advancement of a live round through accidental pulling of the trigger of the revolver. It will be noted that the safety device will similarly lock the operating mechanism of an automatic pistol.

While providing safety against accidental discharge, the safety device can be easily, rapidly and conveniently removed merely by freeing the rod, pushing the rod inwardly, rotating the rod and withdrawing the rod. The dummy round need not be removed. With a revolver, it will just remain in the cylinder. With an automatic pistol or rifle the round will be ejected as'the gun is cocked. It will be noted that a simple clip is advantageous for use when the gun is handled as, for example, in storage and dispensing of guns to guards during their tour of duty. For use as a safety as, for example, by police ofiicers at their homes, a lock is preferably used to prevent accidents by children.

This invention will be variously embodied and modified within the scope of the subjoined claim.

What is claimed is: a

A safety device for a revolver having a barrel and a rotatable cylinder provided with chambers to carry rounds of ammunition into alignment with said barrel of said revolver, saidsafety device comprising: a dummy round, said dummy round consisting of a cartridge case, a bullet portion movably mounted within said cartridge case and spring means biasing said bullet portion into said cartridge case, said dummy round having the outline dimensions of a live round when said bullet portion is in said biased position, means insertable through said barrel of said revolver to engage said bullet portion and extend said bullet portion into said barrel of saidrevolver, and means to hold said last-named means in the extended position.

References Cited in the file of this patent UNITED STATES PATENTS 1,585,075 Boyce May 18, 1926 2,327,334 Parker Sept. 3, 1941 2,479,107 Garretson Aug. 16, 1949 2,655,755 Nichols Oct. 20, 1953 2,763,081 I-luckabee Sept. 18, 1956 2,887,807 Santangelo May 26, 1959 FOREIGN PATENTS 321,332 Great Britain Nov. 7, 1929

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1585075 *Feb 10, 1925May 18, 1926Boyce James WToy cartridge
US2327334 *Sep 3, 1941Aug 17, 1943Camille ParkerFirearm lock
US2479107 *Jul 31, 1948Aug 16, 1949Garretson Donald JGun lock
US2655755 *Mar 31, 1950Oct 20, 1953Nichols Talley WToy cap pistol and cartridge
US2763081 *Nov 3, 1953Sep 18, 1956Huckabee John MGun barrel sealing device
US2887807 *Jul 11, 1956May 26, 1959Santangelo Clifford LFirearm locking device
GB321332A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3137957 *Jul 19, 1962Jun 23, 1964Frank B WilliamsSafety device for firearms
US3208176 *Jun 10, 1964Sep 28, 1965Giles John ESafety device for guns
US3360880 *Apr 21, 1966Jan 2, 1968J A FiondellaSafety device insertable in the chamber of a firearm
US4048741 *Jul 29, 1976Sep 20, 1977Chiodo Daniel JRotation-preventing lock assembly
US4224753 *Aug 4, 1978Sep 30, 1980Bielman Thomas FSafety device for firearms
US4398366 *Nov 5, 1981Aug 16, 1983Wernicki John JGun lock
US4412397 *Mar 19, 1982Nov 1, 1983Bayn William HFirearm safety apparatus and method of using same
US4569144 *Sep 26, 1984Feb 11, 1986Russell ThurberHandgun safety device
US4777753 *Sep 11, 1987Oct 18, 1988Stancato Albert JProjectile capturing gun safety device
US4783924 *Feb 13, 1987Nov 15, 1988Firelock, Inc.Handgun safety device
US4802298 *Apr 8, 1988Feb 7, 1989Baugus Ronald GGun cylinder lock device
US4961277 *Dec 29, 1989Oct 9, 1990Nathan RosenbaumQuick release safety device for handguns
US4969284 *Sep 27, 1989Nov 13, 1990Healey Christopher TShotgun disabling device
US5001854 *Aug 3, 1990Mar 26, 1991Derman Jay SGun safety locking devices
US5038508 *Aug 8, 1989Aug 13, 1991Brown Frank CSafety device for a firearm
US5052142 *Jul 16, 1990Oct 1, 1991Mikus Edward MSafety lock for revolvers
US5062233 *Jan 14, 1991Nov 5, 1991Brown Franklin CSafety device for a firearm
US5233777 *Sep 3, 1992Aug 10, 1993The Marlin Firearms CompanyFirearm safety lock assembly
US5239767 *Mar 9, 1992Aug 31, 1993Intellectual Resources Group, Inc.High security gun lock device
US5313733 *Oct 28, 1992May 24, 1994Meade Ronald AQuick release safety device for firearms
US5331759 *Oct 16, 1991Jul 26, 1994Marceau Ian WEjection port lock for firearms
US5412959 *Nov 23, 1993May 9, 1995Bentley; James K.Gun lock assembly
US5446988 *Jun 14, 1994Sep 5, 1995Frederick, Jr.; AlbertFirearm safety device
US5737864 *Dec 26, 1996Apr 14, 1998Otto; MiltonSafety-device for locking fire-arms
US5852893 *Apr 18, 1997Dec 29, 1998Fujimori; KenjiGun for appreciation and production method thereof
US6170186 *Apr 12, 1999Jan 9, 2001Waymon Burton ReedFirearm safety apparatus
US6442881Feb 19, 2001Sep 3, 2002Donald R. KellermanFirearm barrel lock
US6543171Apr 12, 2002Apr 8, 2003Donald R. KellermanFirearm barrel lock
US6796071 *Apr 20, 2001Sep 28, 2004Kenneth M. LaneGun lock
US6796072Jan 27, 2003Sep 28, 2004Ammo-Safe, Inc.Firearm safety device
US6862831Oct 3, 2003Mar 8, 2005Benjamin CanadayFirearm breech safety lock
US7121033 *May 30, 2005Oct 17, 2006Ray WallerGun lock
DE1156001B *Mar 20, 1962Oct 17, 1963Hans BaumannGas-Handschusswaffe mit einer im Lauf angebrachten Sperre fuer feste Munition
WO1988006264A1 *Feb 12, 1988Aug 25, 1988Newtech ProductsHandgun safety device
WO1992010714A1 *Oct 16, 1991Jun 14, 1992Marceau Ian WEjection port lock for firearms
WO2003064954A2 *Jan 29, 2003Aug 7, 2003Ammo Safe IncFirearm safety device
U.S. Classification42/66, 42/70.11, 102/430, 102/444
International ClassificationF41A17/00, F41A17/44
Cooperative ClassificationF41A17/44
European ClassificationF41A17/44