CA2142399A1 - Firearm safety lock - Google Patents
Firearm safety lockInfo
- Publication number
- CA2142399A1 CA2142399A1 CA 2142399 CA2142399A CA2142399A1 CA 2142399 A1 CA2142399 A1 CA 2142399A1 CA 2142399 CA2142399 CA 2142399 CA 2142399 A CA2142399 A CA 2142399A CA 2142399 A1 CA2142399 A1 CA 2142399A1
- Authority
- CA
- Canada
- Prior art keywords
- firearm
- blocking device
- bore
- chamber
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/44—Safety plugs, e.g. for plugging-up cartridge chambers, barrels, magazine spaces
Abstract
A device for locking firearms and of the type having a chamber blocking device (10) which is placed into the chamber of the firearm: which engages a bore blocking device (20) which is placed into the barrel of the firearm: and which has a lock means (30) which fastens the two devices together. In addition, the chamber blocking device (10) engages the extractor (94) of the firearm: the lock body (28) blocks the muzzle of the firearm: and the locked device prevents the cycling of the firearm.
Description
2~23~
I~&~ Field of InveDtion The invention relates to the security of firearms and provides a positive method of locking and preventing the loading and firing of a firearm without requiring the 5 diDa~ llJly~ partial destruction, or permanent ~ iril -l;.... of the firearm.
Discussion of Prior Art 10 Several firearm safety devices have been developed and marketed which attempt to increase the safety and security of an unattended firearm in some way.
The ;ull~ lwal devices which have been recently marketed are:
Trigger Lock.
Cylinder Lock.
Cable Lock.
Bore-Blocker, and Bore-Plug variants.
Strap "Locks", and variants.
20 The Trigger Lock is a device which fits through the trigger guard of a firearm and prevents .. ~ of the trigger. The device does not prevent the loading or cycling of the firearm. It is usable on any firearm which has a distinct trigger guard of suitable ' The device does not generally interfere with the storage and 2~ ~23~
transpon of the firearrn, howeYer it would prevent the storage of a handgun type firearm in a holster, limiting the ,.1,~ for Military, Police, Security Guard, or some types of ~U~ iLiv~ shooting use.
5 The Cylinder Lock is a device which has application to swing out cylinder revolvers or revolving rifles only. The device is placed in one cylinder of the revolver when the cylinder is in the loading (swung out) position. The device does not contain a true lock, although current liUIIIIII~ I designs could be modified to do so, and it prevents the normal storage or carrying of the firearm. In addition, the use of the Cylinder 10 Lock type of security devices would severely mar the exterior finish of the firearm where contact occurs. This would seriously degrade the appearance of the firearm and could lead to corrosion or damage where a the exterior finish was worn or damaged.
15 The Cable Lock, in its many variants, is a locking cord which is fitted through the action or magazine well of the firearm. The Cable Lock relies on the cable jamming the bolt or some other key pan of the firearrn and preventing it from cycling or locking in the firing position. This type of device is very susceptible to the design of the firearrn. In general, it will work on pump action or semi-automatic firearms. It 20 will not work well on many bolt action firearms because these firearms do not have the restrictive geometry required to ensure safety. Also, the camming action of the rifle bolt as it closes can be used to degrade the cable eventually allowing the normal closing of the bolt. The Cable Lock will not work at all on most manual firearms 3~
since the geometry on which the lock relies is not present. The use of the cable lock on revolver type firearms is limited at best. It can obstruct a single cylinder and perhaps limit the cylinder rotation during the firing cycle of the firearm, but it is not generally suitable to render the firearm inoperative.
The Bore-Blocker is a device which attempts to block the actual bore of the firearm.
The device relies on a , ' of the component parts and thus is not a lock. It is intended to prevent young children from operating a firearm so equipped because the ", ~ , requires .".--1f~1.1P strength. It could have application to a number 10 of firearms types since it attempts to block the bore rather than hinder the This device could also prevent the loading of the chamber of the firearm.
The variants of the Bore Blocker type security device are the Bore Plug devices.
These devices rely on engaging a part of the firearm geometry and using this to secure a plug in the bore of the firearm. Several means have been tried to achieve this goal, including the use of expanding pins which engage the bore and which would lead to marking and serious df~ Li~ of the firearms bore surface with even normal use. The firearm bore would be severely damage should an attempt be made to remove the device, even through the efforts of some one handling the 20 firearm and being unfamiliar with the device installed. Other variants of the Bore Plug extend through the bore and engage some parts of the firearrn chamber with expanding collet type means or multiple fingers of material. These do not necessarily block the loading of the firearm, and their use would seriously diminish the finish and 2~3~9 thus firing accuracy of the bore of the firearm.
The Strap Lock type of firearms safety device is essentially made up of bands of rubber or like material which are placed over key parts of the firearm to hinder the 5 loading or l ' of the firearm's action. These straps may be of a non-e~panding type which are fitted and secured in place and must be cut free in order to access the firearm. Neither type of Strap Lock contains an actual lock means, but they are simply intended to prevent very weak persons (such as young children) from accessing the firearm easily or to provide short term hindrance of the action of the 10 firearm.
None of these previous devises have been widely accepted by firearm owners. The devices all :~rc-lmrli~h some aspect of the desired result, but none of the devices provide definite security for the firearm owner against ' i...,l loading and 15 firing.
Several patents have been taken out in areas relating to the security of firearms.
Canadian Patent 1219482 entitled EXTERNALLY VISIBLE SAFETY DEVICE FOR
20 EiIREARMS, issued to Johnson describes a device which fits into the magazine well of a firearm and blocks the bolt from travelling forward into battery. This device is held in place by the magazine catch of the firearm and is intended as a range safety accessory. It is not a lock and may be readily removed by unskilled persons.
~239~
Canadian Patent 1197719 entitled PrREARM SAPETY APPARATUS AND
METHOD POR USING SAME, issued to Bayn describes a device which is designed to fit into the breech or muzzle of a firearm and be held in place by a frangible strap.
The strap is secured in place and must be cut to release. This is not a ~ ly 5 durable or reusable security method.
Canadian Patent 1073256 entitled RIFLE BOLT LOCKING APPARATUS, issued to Dubeil describes a device intended to lock the bolt of a rifle in place and prevent the loading or cycling of the action of the rifle. This type of device prevents the 10 operation of the ætion but does not positively identify or prevent the previous loading of, or discharge of the previously loaded cartridge.
Canadian Patent 945411 entitled TRIGGER SAPETY DEVICE issued to Sperling, places a block behind the trigger of the firearm. The device may be fitted or locked, 15 as in the Trigger Lock previously described, in place. This device does not insure that the firearm can not be loaded or ~--ir--F.Y:lrnin~ir.n of the United States Patents shows a number of other patents have beenissued in this area.
U.S. Patent 5241770 entitled GUN LOCKING APPARATUS issued to Lambert, places a plug through the bore of the firear~n and uses an expanding means to engage the chamber of the firearm. This device would not prevent the cycling or loading of 2~
all types of firearms and the locking means is exposed where it could easily be cut free releasmg the firearm for use. U.S. Patent 5001854 to Durman is a variant of this type of design with the same drawbacks.
U.S. Patent 5239767 entitled HIGH SECURITY GUN LOCK DEVICE issued to Briley et al, places an extension through the bore of the firearm to engage a modified dummy round in the chamber of the firearm. A complex manually . ' ' lock is used to secure the device in place. The lock is fully exposed and can be released through ", ~ ;"" freeing the firearm. The dummy round is modified to expand upon attempted forced removal, and thus forcibly engage the interior of the firearm bore causing permanent marking and damage. The means of locking the parts together is a contracting spring collet type ;~ lIL which is not solid through the locking plane and which could be overcome by application of sufficient force.
1~ U.S. Patent 5171924 entitled FLAGGED FIREARMS LOCK METHOD AND
APPARATUS issued to Honey et al, places an expanding plug through the bore from the chamber. The plug is designed to be completely contained within the firearm and to push a warning flag forward from the muzzle when the firearm is loaded. This could be dangerous because it requires the firearm be loaded in order to fully engage the device and the device does not prevent the discharge of the firearm. Discharging the firearm with the plug in place could result in severe personnel injury. The device does not provide a secure locking means for retaining the device in plæe, rather it is manually inserted and removed without aid. U.S. Patent 5179234 to Cvetanovich is Z~2~9~
also a variant of this type of design.
U.S. Patent 4908971 entitled SAFETY LOCK FOR ~IREARMS issued to Chaney, places a friction fitting plug into the bore of the firearrn, which engages a plug in the 5 chamber. The device is fitted and retained solely by friction and is not a lock in that no key or, ' is required to release it. Eurther, the device protrudes S~ icallLly from the muzzle of the firearrn in order that it may be grasped for remoYâl, and this limits the storage of the firearm in much the same manner as the device of Briley et al. U.S. Patents 4999940, 4969284, and 4783924 also describe 10 variants of the bore block device with various drawbacks that cause these designs to not meet the needs of the invention described herein.
In addition, a number of patents have been issued for plug type devices, including U.S. Patents 5231236, 5115589, 5054223, 5048211, 5044105, and 4827649. These 15 devices do not secure the firear~ns from both the chamber and muzzle and they depend on the friction of tines or sealing rings to remain in place and to resist forceable removal. These designs are considered not, rr- 1,~ secure and they are generally designed in a manner that could cause UlUl~,eooal~y damage to the firearm during their normal use.
There are additional designs, predating those indicated, which have been studied but they do not meet the needs of the firearm lock design stated herein. Significant work in the area of external firearms safety devices has only recently begun and an invention of the type described herein will exceed the utility of these previous devices.
Each of the devices mentioned can contribute to increasing the safety of a firearm and/or to reducing the possibility of an accidental discharge. However, none of the ideas fully meets the goals of positively resisting tampering and ' ' removal, 5 of hmdering or preventing the loading and firing of the firearm, and of being easily removed and reliably reinstalled from a variety of firearm models and all types of cartridge firing firearm designs.
10 Objects aod Advantages Accordingly, several objects and advantages of my invention are:
(a) to provide a firearm lock which is durable and reusable;
1~ (b) to provide a firearm lock which can be easily installed and removed;
(c) to provide a firearm lock which will prevent or hinder the loading and firing of live when installed in the firearm;
(d) to provide a firearm lock which will not interfere will normal L~ JulL~liu and storage of the firearm;
20 (e) to provide a firearm lock which will not mark or degrade the exterior finish of the firearm in which it is installed;
(f) to provide a firearln lock which will not mark or degrade the interior finish of the firearm in which it is installed;
(g) to provide a firearrn lock which will prevent or hinder the cycling of the action of the firearrn when installed in the firear n;
(h) to provide a firear~n lock which can be easily adapted to fit various firearrn types, calibers, and barrel lengths; and, 5 (i) to provide a firearm lock which will be adaptable to all types of cartridge firing firearm actions.
~urther objects and advantages of my invention will become apparent from a cul~;dcla~iull of the drawings and ensuing description of it.
Drawing Figures Eiigure 1 shows a ~cl~e~,~ivc view of the invention before installation in the firear n.
Pigure 2 shows a section view of the invention partially in place in the firearm.
I;igure 3 shows a section view of the invention fixed in place in the fireartn.
20 ~igure 4 shows a section view of the invention with the lock located outside of the firear n's barrel.
Figure 5 shows a section view of an alterrlate ClllbO-IilllCll~ of the invention utilising a 2142~
rotating locking element.
Reference Numerals In Drawings Equivalent parts in alternate . ' - ' have the same numbers, but alphabetic suffixes are added:
10 Chamber blocking device 10 lZ Extractor~,.~;,~,~,..,.~..l feature 14 Through hole 16 F..~"."~...~..~ surfaces 18 Alignment guide 20 Bore blocking device 15 22 Bore block 24 Locking bar 26 Locking bar tip 28 Lock body 30 Lock 20 32 Bore protector 34 Muzzle protector 40 Muzzle cover 90 ~irearm barrel 2~ 9~
92 Firearm bolt 94 Firearm extractor 96 Firearm muzzle device Description of Invention - Figures 1 A typical ~ ' of the invention is illustrated in Figure 1.
10 The firearm lock is comprised of a chamber blocking device 10 which exterior ~llG~ iull takes the form of a cartridge suitable to the firearm and fits into the firearm's chamber amd prevents the loading or firing of live , and a bore blocking device 20 which fits into the barrel of the firearm and locks to the chamber block 10. In the preferred ~llIL ' a durable material such as a corrosion resistant steel is used for the chamber block 10, a bore block 22, a locking bar 24, a locking bar tip 26, and a lock body 28. A lock 30 is a suitable ~oll....~ lly available lock. In detail:
The chamber block 10 has a grooved 16 hole 14 through it's centre. The hole 14 20 allows the insertion of the locking bar tip 26 into the chamber block 10. The grooves 16 are made to engage the locking bar tip 26. The grooves 16 are designed to prevent the locking bar tip 26 from being withdrawn by pushing, pulling, twisting, rotating, or a .~ ... of IIIU~. ' of the two assemblies relative to one another. The 39~
grooves 16 may be designed to allow for multiple t~ r~ points to facilitate the al~ mm~ n of differing barrel 90 lengtbs.
The bore blocking device 20 is comprised of a bore block 22 which contains a locking bar tip 26 and moumts a lock body 28. A locking bar 24 engages a lock 30 and fits within the bore block 22. The locking bar 24 slides inside of the bore block 22 under the influence of the lock 30 causing the locking bar tip 26 to be fixed m l --~;~ L. -- -';
with the chamber block 10 and to thus fix the bore block 20 in place relative to the chamber block 10.
The bore blocking device 20 contains elements, the lock body 28 and muzzle cover40, which contact the muzzle of the firearm in a manner which prevents the complete firearm lock assembly from being drawn partially or completely rearward through the barrel 90 of the firearm.
The chamber block 10 contains a feature 12 which engages the extractor of a firearm 94 and prevents or hinders the drawing of a bolt 92 to the rear once the firearm lock is secured in place.
Description of Inventioll - Figllre 4 An alternate ~ l,o~ of the invention is shown in Figure 4 where a lock 30a is ~23~g placed outside of a barrel 90 of a firearm. A lock body 28a covers the muzzle toprevent cycling of the firearm. The lock 30 remains outside of the barrel 90. This - ' is p~,.; ' '~, applicable to firearms with a muzzle device 96 which makes access to the muzzle of the barrel 90 with the key difficult.
The remaining ~ of the invention remain the same.
Description of Invention - Pigure 5 An second alternate t~ bol" of the invention is shown in Figure 5. A chamber block l0b is designed to accept a multiple pinned locking bar tip 26b. A bore block 22b is formed to maintain the position of the locking bar tip 26b relative to the chamber block l0b. A lock 30b is a ~ullh..~., ''~l available rotating-type lock.
The remaining ~~ -~ ~ of the invention remain the same.
Operation - Fignres 2 and 3 20 The manner of operating the firearm lock is simple and easily mastered.
The chamber blocking device l0 is placed into the chamber of the firearm. The bolt 92 of the firearm is closed and the extractor 94 engages the rim of the chamber block ~ 9;~
10. The bore blocking device 20 is slid completely into the barrel 92 of the firearm.
The lock 30 is actuated to fix the device in place.
Pigure 2 shows the chamber block 10 in place in the firearm barrel 90. The firearm 5 bolt 92 has been closed and ti3e firearm extractor 94 has engaged the chamber block 10. The bore block 20 is partially inserted in the barrel 90. The lock 30 is in the released position allowing the locking bar tip 26 to contract amd fit into the chamber block 10.
E~igure 3 shows the bore block 20 completely in place. The lock 30 has been actuated and the locking bar 24 has moved to force tne locking bar tip 26 to engage the chamber block 10.
The bore protector 32 and the muzzle protector 34 can be seen between the bore block 20 and the firearm's barrel 90. The bore protector 32 can be fixed or can be movable to cover the locking bar tip 26 during installation of the bore block 20 to fully protect the barrel of the firearm from damage. The muzzle protector 34 can be fixed or moveable and may be of varying thickness to provide an ~ . fit to the firearm's barrel length.
Removal of the firearm lock is I . ' ' I by operating the lock 30 to release the locking bar 24. The bore block 20 is withdrawn from the firearm. The bolt 92 of the firearm is cycled to the rear and the chamber block 10 is removed from the chamber of the firearln by the extractor 94 or by angling the firearm to cause the chamber block 10 to slide free.
Operation of the alternate .~ b- ' is identical to the manner described herein.
Surmnal y, R~ ~ ' nnd Scope Accordingly, the reader will see that the Pirearm Lock can be used to quickly, easily, ~U~ ly, and effectively lock any firearm. In addition, the Eiirearm Lock provides positive, visible proof that the subject firearm is safe and cannot be fired. A"
P uLll~ llolt:, the l~irearm Lock has the additional advantages in that;
it can be easily ' .:d for all calibers and barrel lengths;
it provides a positive lock preventing tampering with the firearln through 15 preventing the cycling of the action of the firearm;
it provides a means of safely handling firearms during the training of novice shooters;
it provides a means of safely training Police or other security personnel in the use of firearms in an interactive (role playing) ~lvilolull~lL with maximum safety 20 for all p~h Li~ ,llt~, it does not depend on the firearm's action type or external physical geometry to operate correctly and effectively.
2~ ~2~9 Although the description above contains several ~ iri~ . these should not be construed as limitmg the scope of the invention, but as merely providing il!i i,.~;.,..
of the some of the presently preferred ~ ' ' of the invention. For example, the bore blocking device could be made using a flexible bore block to allow use in 5 related ~ requiring the positive closure of a straight or non-straight bore;
the locking bar tip could have different shapes such as squared or rounded gripping surfaces; etc.
Thus the scope of the mvention should be determined by the appended claims and 10 their legal e4uiv ' rather that by the examples given.
I~&~ Field of InveDtion The invention relates to the security of firearms and provides a positive method of locking and preventing the loading and firing of a firearm without requiring the 5 diDa~ llJly~ partial destruction, or permanent ~ iril -l;.... of the firearm.
Discussion of Prior Art 10 Several firearm safety devices have been developed and marketed which attempt to increase the safety and security of an unattended firearm in some way.
The ;ull~ lwal devices which have been recently marketed are:
Trigger Lock.
Cylinder Lock.
Cable Lock.
Bore-Blocker, and Bore-Plug variants.
Strap "Locks", and variants.
20 The Trigger Lock is a device which fits through the trigger guard of a firearm and prevents .. ~ of the trigger. The device does not prevent the loading or cycling of the firearm. It is usable on any firearm which has a distinct trigger guard of suitable ' The device does not generally interfere with the storage and 2~ ~23~
transpon of the firearrn, howeYer it would prevent the storage of a handgun type firearm in a holster, limiting the ,.1,~ for Military, Police, Security Guard, or some types of ~U~ iLiv~ shooting use.
5 The Cylinder Lock is a device which has application to swing out cylinder revolvers or revolving rifles only. The device is placed in one cylinder of the revolver when the cylinder is in the loading (swung out) position. The device does not contain a true lock, although current liUIIIIII~ I designs could be modified to do so, and it prevents the normal storage or carrying of the firearm. In addition, the use of the Cylinder 10 Lock type of security devices would severely mar the exterior finish of the firearm where contact occurs. This would seriously degrade the appearance of the firearm and could lead to corrosion or damage where a the exterior finish was worn or damaged.
15 The Cable Lock, in its many variants, is a locking cord which is fitted through the action or magazine well of the firearm. The Cable Lock relies on the cable jamming the bolt or some other key pan of the firearrn and preventing it from cycling or locking in the firing position. This type of device is very susceptible to the design of the firearrn. In general, it will work on pump action or semi-automatic firearms. It 20 will not work well on many bolt action firearms because these firearms do not have the restrictive geometry required to ensure safety. Also, the camming action of the rifle bolt as it closes can be used to degrade the cable eventually allowing the normal closing of the bolt. The Cable Lock will not work at all on most manual firearms 3~
since the geometry on which the lock relies is not present. The use of the cable lock on revolver type firearms is limited at best. It can obstruct a single cylinder and perhaps limit the cylinder rotation during the firing cycle of the firearm, but it is not generally suitable to render the firearm inoperative.
The Bore-Blocker is a device which attempts to block the actual bore of the firearm.
The device relies on a , ' of the component parts and thus is not a lock. It is intended to prevent young children from operating a firearm so equipped because the ", ~ , requires .".--1f~1.1P strength. It could have application to a number 10 of firearms types since it attempts to block the bore rather than hinder the This device could also prevent the loading of the chamber of the firearm.
The variants of the Bore Blocker type security device are the Bore Plug devices.
These devices rely on engaging a part of the firearm geometry and using this to secure a plug in the bore of the firearm. Several means have been tried to achieve this goal, including the use of expanding pins which engage the bore and which would lead to marking and serious df~ Li~ of the firearms bore surface with even normal use. The firearm bore would be severely damage should an attempt be made to remove the device, even through the efforts of some one handling the 20 firearm and being unfamiliar with the device installed. Other variants of the Bore Plug extend through the bore and engage some parts of the firearrn chamber with expanding collet type means or multiple fingers of material. These do not necessarily block the loading of the firearm, and their use would seriously diminish the finish and 2~3~9 thus firing accuracy of the bore of the firearm.
The Strap Lock type of firearms safety device is essentially made up of bands of rubber or like material which are placed over key parts of the firearm to hinder the 5 loading or l ' of the firearm's action. These straps may be of a non-e~panding type which are fitted and secured in place and must be cut free in order to access the firearm. Neither type of Strap Lock contains an actual lock means, but they are simply intended to prevent very weak persons (such as young children) from accessing the firearm easily or to provide short term hindrance of the action of the 10 firearm.
None of these previous devises have been widely accepted by firearm owners. The devices all :~rc-lmrli~h some aspect of the desired result, but none of the devices provide definite security for the firearm owner against ' i...,l loading and 15 firing.
Several patents have been taken out in areas relating to the security of firearms.
Canadian Patent 1219482 entitled EXTERNALLY VISIBLE SAFETY DEVICE FOR
20 EiIREARMS, issued to Johnson describes a device which fits into the magazine well of a firearm and blocks the bolt from travelling forward into battery. This device is held in place by the magazine catch of the firearm and is intended as a range safety accessory. It is not a lock and may be readily removed by unskilled persons.
~239~
Canadian Patent 1197719 entitled PrREARM SAPETY APPARATUS AND
METHOD POR USING SAME, issued to Bayn describes a device which is designed to fit into the breech or muzzle of a firearm and be held in place by a frangible strap.
The strap is secured in place and must be cut to release. This is not a ~ ly 5 durable or reusable security method.
Canadian Patent 1073256 entitled RIFLE BOLT LOCKING APPARATUS, issued to Dubeil describes a device intended to lock the bolt of a rifle in place and prevent the loading or cycling of the action of the rifle. This type of device prevents the 10 operation of the ætion but does not positively identify or prevent the previous loading of, or discharge of the previously loaded cartridge.
Canadian Patent 945411 entitled TRIGGER SAPETY DEVICE issued to Sperling, places a block behind the trigger of the firearm. The device may be fitted or locked, 15 as in the Trigger Lock previously described, in place. This device does not insure that the firearm can not be loaded or ~--ir--F.Y:lrnin~ir.n of the United States Patents shows a number of other patents have beenissued in this area.
U.S. Patent 5241770 entitled GUN LOCKING APPARATUS issued to Lambert, places a plug through the bore of the firear~n and uses an expanding means to engage the chamber of the firearm. This device would not prevent the cycling or loading of 2~
all types of firearms and the locking means is exposed where it could easily be cut free releasmg the firearm for use. U.S. Patent 5001854 to Durman is a variant of this type of design with the same drawbacks.
U.S. Patent 5239767 entitled HIGH SECURITY GUN LOCK DEVICE issued to Briley et al, places an extension through the bore of the firearm to engage a modified dummy round in the chamber of the firearm. A complex manually . ' ' lock is used to secure the device in place. The lock is fully exposed and can be released through ", ~ ;"" freeing the firearm. The dummy round is modified to expand upon attempted forced removal, and thus forcibly engage the interior of the firearm bore causing permanent marking and damage. The means of locking the parts together is a contracting spring collet type ;~ lIL which is not solid through the locking plane and which could be overcome by application of sufficient force.
1~ U.S. Patent 5171924 entitled FLAGGED FIREARMS LOCK METHOD AND
APPARATUS issued to Honey et al, places an expanding plug through the bore from the chamber. The plug is designed to be completely contained within the firearm and to push a warning flag forward from the muzzle when the firearm is loaded. This could be dangerous because it requires the firearm be loaded in order to fully engage the device and the device does not prevent the discharge of the firearm. Discharging the firearm with the plug in place could result in severe personnel injury. The device does not provide a secure locking means for retaining the device in plæe, rather it is manually inserted and removed without aid. U.S. Patent 5179234 to Cvetanovich is Z~2~9~
also a variant of this type of design.
U.S. Patent 4908971 entitled SAFETY LOCK FOR ~IREARMS issued to Chaney, places a friction fitting plug into the bore of the firearrn, which engages a plug in the 5 chamber. The device is fitted and retained solely by friction and is not a lock in that no key or, ' is required to release it. Eurther, the device protrudes S~ icallLly from the muzzle of the firearrn in order that it may be grasped for remoYâl, and this limits the storage of the firearm in much the same manner as the device of Briley et al. U.S. Patents 4999940, 4969284, and 4783924 also describe 10 variants of the bore block device with various drawbacks that cause these designs to not meet the needs of the invention described herein.
In addition, a number of patents have been issued for plug type devices, including U.S. Patents 5231236, 5115589, 5054223, 5048211, 5044105, and 4827649. These 15 devices do not secure the firear~ns from both the chamber and muzzle and they depend on the friction of tines or sealing rings to remain in place and to resist forceable removal. These designs are considered not, rr- 1,~ secure and they are generally designed in a manner that could cause UlUl~,eooal~y damage to the firearm during their normal use.
There are additional designs, predating those indicated, which have been studied but they do not meet the needs of the firearm lock design stated herein. Significant work in the area of external firearms safety devices has only recently begun and an invention of the type described herein will exceed the utility of these previous devices.
Each of the devices mentioned can contribute to increasing the safety of a firearm and/or to reducing the possibility of an accidental discharge. However, none of the ideas fully meets the goals of positively resisting tampering and ' ' removal, 5 of hmdering or preventing the loading and firing of the firearm, and of being easily removed and reliably reinstalled from a variety of firearm models and all types of cartridge firing firearm designs.
10 Objects aod Advantages Accordingly, several objects and advantages of my invention are:
(a) to provide a firearm lock which is durable and reusable;
1~ (b) to provide a firearm lock which can be easily installed and removed;
(c) to provide a firearm lock which will prevent or hinder the loading and firing of live when installed in the firearm;
(d) to provide a firearm lock which will not interfere will normal L~ JulL~liu and storage of the firearm;
20 (e) to provide a firearm lock which will not mark or degrade the exterior finish of the firearm in which it is installed;
(f) to provide a firearln lock which will not mark or degrade the interior finish of the firearm in which it is installed;
(g) to provide a firearrn lock which will prevent or hinder the cycling of the action of the firearrn when installed in the firear n;
(h) to provide a firear~n lock which can be easily adapted to fit various firearrn types, calibers, and barrel lengths; and, 5 (i) to provide a firearm lock which will be adaptable to all types of cartridge firing firearm actions.
~urther objects and advantages of my invention will become apparent from a cul~;dcla~iull of the drawings and ensuing description of it.
Drawing Figures Eiigure 1 shows a ~cl~e~,~ivc view of the invention before installation in the firear n.
Pigure 2 shows a section view of the invention partially in place in the firearm.
I;igure 3 shows a section view of the invention fixed in place in the fireartn.
20 ~igure 4 shows a section view of the invention with the lock located outside of the firear n's barrel.
Figure 5 shows a section view of an alterrlate ClllbO-IilllCll~ of the invention utilising a 2142~
rotating locking element.
Reference Numerals In Drawings Equivalent parts in alternate . ' - ' have the same numbers, but alphabetic suffixes are added:
10 Chamber blocking device 10 lZ Extractor~,.~;,~,~,..,.~..l feature 14 Through hole 16 F..~"."~...~..~ surfaces 18 Alignment guide 20 Bore blocking device 15 22 Bore block 24 Locking bar 26 Locking bar tip 28 Lock body 30 Lock 20 32 Bore protector 34 Muzzle protector 40 Muzzle cover 90 ~irearm barrel 2~ 9~
92 Firearm bolt 94 Firearm extractor 96 Firearm muzzle device Description of Invention - Figures 1 A typical ~ ' of the invention is illustrated in Figure 1.
10 The firearm lock is comprised of a chamber blocking device 10 which exterior ~llG~ iull takes the form of a cartridge suitable to the firearm and fits into the firearm's chamber amd prevents the loading or firing of live , and a bore blocking device 20 which fits into the barrel of the firearm and locks to the chamber block 10. In the preferred ~llIL ' a durable material such as a corrosion resistant steel is used for the chamber block 10, a bore block 22, a locking bar 24, a locking bar tip 26, and a lock body 28. A lock 30 is a suitable ~oll....~ lly available lock. In detail:
The chamber block 10 has a grooved 16 hole 14 through it's centre. The hole 14 20 allows the insertion of the locking bar tip 26 into the chamber block 10. The grooves 16 are made to engage the locking bar tip 26. The grooves 16 are designed to prevent the locking bar tip 26 from being withdrawn by pushing, pulling, twisting, rotating, or a .~ ... of IIIU~. ' of the two assemblies relative to one another. The 39~
grooves 16 may be designed to allow for multiple t~ r~ points to facilitate the al~ mm~ n of differing barrel 90 lengtbs.
The bore blocking device 20 is comprised of a bore block 22 which contains a locking bar tip 26 and moumts a lock body 28. A locking bar 24 engages a lock 30 and fits within the bore block 22. The locking bar 24 slides inside of the bore block 22 under the influence of the lock 30 causing the locking bar tip 26 to be fixed m l --~;~ L. -- -';
with the chamber block 10 and to thus fix the bore block 20 in place relative to the chamber block 10.
The bore blocking device 20 contains elements, the lock body 28 and muzzle cover40, which contact the muzzle of the firearm in a manner which prevents the complete firearm lock assembly from being drawn partially or completely rearward through the barrel 90 of the firearm.
The chamber block 10 contains a feature 12 which engages the extractor of a firearm 94 and prevents or hinders the drawing of a bolt 92 to the rear once the firearm lock is secured in place.
Description of Inventioll - Figllre 4 An alternate ~ l,o~ of the invention is shown in Figure 4 where a lock 30a is ~23~g placed outside of a barrel 90 of a firearm. A lock body 28a covers the muzzle toprevent cycling of the firearm. The lock 30 remains outside of the barrel 90. This - ' is p~,.; ' '~, applicable to firearms with a muzzle device 96 which makes access to the muzzle of the barrel 90 with the key difficult.
The remaining ~ of the invention remain the same.
Description of Invention - Pigure 5 An second alternate t~ bol" of the invention is shown in Figure 5. A chamber block l0b is designed to accept a multiple pinned locking bar tip 26b. A bore block 22b is formed to maintain the position of the locking bar tip 26b relative to the chamber block l0b. A lock 30b is a ~ullh..~., ''~l available rotating-type lock.
The remaining ~~ -~ ~ of the invention remain the same.
Operation - Fignres 2 and 3 20 The manner of operating the firearm lock is simple and easily mastered.
The chamber blocking device l0 is placed into the chamber of the firearm. The bolt 92 of the firearm is closed and the extractor 94 engages the rim of the chamber block ~ 9;~
10. The bore blocking device 20 is slid completely into the barrel 92 of the firearm.
The lock 30 is actuated to fix the device in place.
Pigure 2 shows the chamber block 10 in place in the firearm barrel 90. The firearm 5 bolt 92 has been closed and ti3e firearm extractor 94 has engaged the chamber block 10. The bore block 20 is partially inserted in the barrel 90. The lock 30 is in the released position allowing the locking bar tip 26 to contract amd fit into the chamber block 10.
E~igure 3 shows the bore block 20 completely in place. The lock 30 has been actuated and the locking bar 24 has moved to force tne locking bar tip 26 to engage the chamber block 10.
The bore protector 32 and the muzzle protector 34 can be seen between the bore block 20 and the firearm's barrel 90. The bore protector 32 can be fixed or can be movable to cover the locking bar tip 26 during installation of the bore block 20 to fully protect the barrel of the firearm from damage. The muzzle protector 34 can be fixed or moveable and may be of varying thickness to provide an ~ . fit to the firearm's barrel length.
Removal of the firearm lock is I . ' ' I by operating the lock 30 to release the locking bar 24. The bore block 20 is withdrawn from the firearm. The bolt 92 of the firearm is cycled to the rear and the chamber block 10 is removed from the chamber of the firearln by the extractor 94 or by angling the firearm to cause the chamber block 10 to slide free.
Operation of the alternate .~ b- ' is identical to the manner described herein.
Surmnal y, R~ ~ ' nnd Scope Accordingly, the reader will see that the Pirearm Lock can be used to quickly, easily, ~U~ ly, and effectively lock any firearm. In addition, the Eiirearm Lock provides positive, visible proof that the subject firearm is safe and cannot be fired. A"
P uLll~ llolt:, the l~irearm Lock has the additional advantages in that;
it can be easily ' .:d for all calibers and barrel lengths;
it provides a positive lock preventing tampering with the firearln through 15 preventing the cycling of the action of the firearm;
it provides a means of safely handling firearms during the training of novice shooters;
it provides a means of safely training Police or other security personnel in the use of firearms in an interactive (role playing) ~lvilolull~lL with maximum safety 20 for all p~h Li~ ,llt~, it does not depend on the firearm's action type or external physical geometry to operate correctly and effectively.
2~ ~2~9 Although the description above contains several ~ iri~ . these should not be construed as limitmg the scope of the invention, but as merely providing il!i i,.~;.,..
of the some of the presently preferred ~ ' ' of the invention. For example, the bore blocking device could be made using a flexible bore block to allow use in 5 related ~ requiring the positive closure of a straight or non-straight bore;
the locking bar tip could have different shapes such as squared or rounded gripping surfaces; etc.
Thus the scope of the mvention should be determined by the appended claims and 10 their legal e4uiv ' rather that by the examples given.
Claims (18)
1. A FIREARM SAFETY LOCK of the type comprising a generally cartridge shaped chamber blocking device which prevents the loading of a cartridge into the chamber of said firearm and which contains one or more engagement surfaces to retain an expanding or rotating engagement element, a bore blocking device sized to pass freely through the bore of the subject firearm and into said chamber blocking device and incorporating an engagement means where by the position of said bore blocking device is fixed relative to said chamber blocking device by mechanical engagement and secured by a lock means to fix relatively said relationship between said chamber blocking device and said bore blocking device.
2. The firearm lock of claim 1. wherein the chamber blocking device occupies the chamber of the firearm and contains an engagement means for engaging the locking surfaces of said bore blocking device at a single position.
3. The chamber blocking device of claim 2. wherein it contains an engagement means which may allow the engagement of said locking surfaces at multiple positions.
4. The chamber blocking device of claim 3. wherein the chamber blocking device is sized to extend beyond the length of the subject firearm's chamber, into the bore of the firearm to provide additional locking surface positions or to allow fitting to multiple similar calibers of firearm.
5. The chamber blocking device of claim 2. or claim 3. or claim 4.
wherein a surface is provided to engage the extractor of the firearm.
wherein a surface is provided to engage the extractor of the firearm.
6. The chamber blocking device of claim 2. or claim 3. or claim 4.
wherein no surface is provided to engage the extractor of the firearm.
wherein no surface is provided to engage the extractor of the firearm.
7. The chamber blocking device of claim 5. or claim 6.
wherein a relief is placed in the surface of the chamber blocking device which fits against the breech face to allow for a clearance for the firing pin of the firearm.
wherein a relief is placed in the surface of the chamber blocking device which fits against the breech face to allow for a clearance for the firing pin of the firearm.
8. The chamber blocking device of claim 7. wherein a cushioning element is fitted to said firing pin relief feature.
9. A chamber blocking device of claim 3. or 4. which is sized to extend rearward and prevent the closing of the firearm's bolt.
10. The firearm lock of claim 1. wherein the bore blocking device occupies the bore of the firearm and contains an engagement means for extending into the chamber blocking device and engaging the locking surfaces of said chamber blocking device, and contains a locking means for securing the position of the engagement means within the chamber blocking device.
11. The bore blocking device of claim 10. wherem the bore blocking device contains an extension from the centre-line of the firearm bore outward to partially or fully cover the muzzle of the barrel of the firearm.
12. The bore blocking device of claim 11. wherein the muzzle cover is prevented from marring the firearm by a fixed protective element.
13. The bore blocking device of claim 11. wherein the muzzle cover is prevented from marring the firearm by a movable protective element.
14. The bore blocking device of claim 11. wherein the muzzle cover is prevented from marring the firearm by an expandable or compressible protective element.
15. The bore blocking device of claim 10. wherein the bore blocking element is prevented from marring the interior of the bore of the firearm by a fixed cover.
16. The bore blocking device of claim 10. wherein the bore blocking element is prevented from marring the interior of the bore of the firearm by a moveable cover.
17. The bore blocking device of claim 10. wherein the locking means is configured to be located inside of the bore of the firearm.
18. The bore blocking element of claim 10. wherein the locking means is configured to be located outside of the bore of the firearm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2142399 CA2142399A1 (en) | 1995-02-13 | 1995-02-13 | Firearm safety lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2142399 CA2142399A1 (en) | 1995-02-13 | 1995-02-13 | Firearm safety lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2142399A1 true CA2142399A1 (en) | 1996-08-14 |
Family
ID=4155229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2142399 Abandoned CA2142399A1 (en) | 1995-02-13 | 1995-02-13 | Firearm safety lock |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2142399A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429981A (en) * | 2014-12-22 | 2017-12-01 | 佐瑞生活塑造解决方案有限公司 | For locking and controlling the apparatus and method of weapon |
-
1995
- 1995-02-13 CA CA 2142399 patent/CA2142399A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107429981A (en) * | 2014-12-22 | 2017-12-01 | 佐瑞生活塑造解决方案有限公司 | For locking and controlling the apparatus and method of weapon |
| EP3237827A4 (en) * | 2014-12-22 | 2018-08-22 | Zore Life Shaping Solutions Ltd. | Device and method for locking and controlling a weapon |
| US10309740B2 (en) | 2014-12-22 | 2019-06-04 | Zore Life Shaping Solutions Ltd. | Device and method for locking and controlling a weapon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |