Metal deforming – By use of tool acting during relative rotation between tool... – With cutting of work or product
Reexamination Certificate
1999-01-29
2001-11-13
Carone, Michael J. (Department: 3641)
Metal deforming
By use of tool acting during relative rotation between tool...
With cutting of work or product
C042S059000, C042S066000, C042S067000, C042S084000, C042S096000, C042S099000
Reexamination Certificate
active
06314777
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates in general to a gunlock and more particularly to a magnetically operated revolver lock, which causes interference inside of one of the bullet cylinder chambers by radial captured balls, such that the cylinder cannot rotate as to align a round with the firing pin, that any munitions round will be off-line with the firing pin, that the cylinder cannot open away from the revolver to load the revolver and the revolver hammer cannot extend back sufficiently to cause activation of the firing pin. Deactivation of the lock is accomplished by insertion of a magnetic key into a hole in the rear of the lock-housing, causing the balls to retract Into the lock-housing ball captivating hole, thus allowing the lock to be withdrawn from the revolver.
BACKGROUND OF THE INVENTION
The safety of commercially available and existing or used firearms has become a national issue, with recent legislation passed, requiring a dealer to offer a locking means for the firearms at the time of purchase. The concern for loaded and unlocked firearms within the household may soon result in a mandatory law that requires all firearms, new and used, have locking devices. Few gunlocks are designed exclusively for revolvers. Most gunlocks available are designed to be used on all types of firearms with the result that some features are not optimized for revolver application.
Conventionally, and in the past, many revolver gunlocks lock the firearm trigger by interlocking two separate pieces together around the trigger area. Additionally, there are revolver gunlocks in which a cable or chain is inserted into the barrel and out the rear breach of the firearm and ultimately secured on either end, thereby making the firearm inoperative. There is also a plug device that fits inside of a revolver cylinder hole to prevent cylinder rotation, but does not function as a locking device but only as a plug device.
Examples of representative patented inventions are as follows:
U.S. Pat. No. 4,110,928 issued Sep. 5, 1978 to Smith for Safety
Device for Preventing Unauthorized Actuation of Touch
-
Actuated Mechanism
describes a magnetically operated trigger lock in which a pivotally mounted magnetically responsive bar positioned on the inside of the handle of the firearm is displaced allowing for trigger movement when the user wears a magnetic ring to activate the device. The '928 device requires a modification to the firearm in order to install the magnetically responsive bar inside the handle of the firearm.
U.S. Pat. No. 5,743,039 issued Apr. 28, 1998 to Garrett for
Combination Locking Device for Firearms
relates to a combination locking device either for engaging or disengaging existing safety devices on firearms, or as an independent safety device to block the firing mechanism of the firearm. The '039 device is a mechanical spring-loaded assembly that, like the '928 device above, requires a modification of the firearm.
U.S. Pat. No. 5,241,770 issued Sep. 7, 1993 to Lambert for
Gun Locking Apparatus
depicts a locking device for revolvers in which an outer tube having a plurality of collet spring fingers at one end receives a central mandrel in complementary coaxial relationship with it, wherein the outer tube with the central mandral inserted effects a spreading of the collet fingers to permit engagement with a rear terminal end of an associated revolver cylinder or barrel of a long arm, such as a rifle. The collet fingers include annular flanges received with the rear face of the cylinder or chamber for locking the device within the revolver structure. Coaxially aligned bores of the outer tube and the central mandral when aligned permit positioning of a padlock therethrough to lock the device in position.
U.S. Pat. No. 4,213,263 issued Jul. 22, 1980 to Brouthers for
Firearm Trigger Guard Assembly
features a trigger guard assembly removably secured to the frame of the firearm by three support points. The first support point is a lug and socket means at the front of the trigger guard frame. The second support point is provided by a spring-biased plunger at the rear of the trigger guard assembly having a wedged end coacting with a slot in the frame. The third support point comprises a pin means extending through ears of the trigger guard frame and the revolver frame and providing a pivot pin for the hammer.
U.S. Pat. No. 5,357,704 issued Oct. 25, 1994 to Benkovic for
Firearm Lock
is directed to a gunlock comprising a hardened steel rod threaded at each end, the threaded ends respectively engaging a cartridge shaped plug and rotatable tumbler lock. The lock is fixed within a sleeve body adapted to fit snugly around a barrel end of a firearm to be locked. The cartridge plug fits snugly within the firing chamber of the firearm in the same manner as a cartridge adapted to be fired within the gun. The rod inserted down the bore of the barrel is threadedly engaged with the cartridge plug by rotating a mating key engaged in the lock. Removal of the key secures the gunlock within the firearm.
U.S. Pat. No. 5,412,959 issued May 9, 1995 to Bentley for
Gun Lock Assembly
is directed to a gunlock comprised of a two major components, an elongated rod member and a predetermined length of flexible cable whose opposite ends can be secured together with a lock. The elongated rod member has a shank portion of sufficient length to extend into the breech of a gun. The head portion has an aperture through which the cable is threaded. The cable is also threaded through a trigger guard and locked. The flexible cable has a predetermined length such that the rod member cannot be removed from the gun barrel without unlocking the lock.
The above patent inventions all provide a solution to the locking of firearms and usually to handguns. All have limitations, however, in that they require a modification to the firearm to install, or they are expensive to purchase or they have a key that does not permit rapid unlocking in tactical or unlit situations. Most are of a size that makes casing or holstering difficult These limitations may deter the firearm owner from locking the firearm, resulting in a situation where firearms are deliberately left unlocked loaded for security reasons. No revolver gunlock is known to exist in which the design is specifically directed to a revolver such that the cylinder of the revolver is positively locked and secured by a lock-housing with multiple radial protruding balls, cam rollers or other shaped particles, or by means of an internal ball/cam roller expanding/extracting plunger rod, restoring spring and inner attached permanent magnet, and to have the capability of being quickly or instantaneously magnetically activated and deactivated. Such a gun lock would be inexpensive and would allow the firearm to have munitions rounds in the remaining cylinder chambers for rapid loading in the event of an emergency, and be compact for ease of casing or holstering.
SUMMARY OF THE INVENTION
An object of the invention is to provide a device that locks a revolver bullet cylinder chamber such as by inserting a tubular section portion of a lock-housing with a plurality of radial expanding balls, cam rollers, or similar components staked in a same plurality of captive holes or openings along the tubular section, into the revolver cylinder from the front, towards the rear, and in which the balls are positively captured between the inner rear and forward walls of the cylinder bullet hole and the housing tubular section, at the shoulder junction of the two adjoining walls such that the locking device cannot be conventionally defeated without the disengagement of the interfering balls by use of a magnetic key, mechanical key, or other locking/unlocking/key mechanism.
It is also an object of the present invention to provide such a revolver-locking device that positively secures a cylinder bullet hole of a revolver so as to not allow the necessary rotation of the cylinder to fully cock the hammer of the revolver, thereby rendering the firearm safe from discharging a round.
Carone Michael J.
Gun Lock Corp.
McCormick Paulding & Huber LLP
Richardson John
LandOfFree
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