Firearm safety device

Information

  • Patent Grant
  • 6789341
  • Patent Number
    6,789,341
  • Date Filed
    Wednesday, April 16, 2003
    22 years ago
  • Date Issued
    Tuesday, September 14, 2004
    20 years ago
  • Inventors
  • Examiners
    • Johnson; Stephen M.
    Agents
    • Howard; Robert E.
Abstract
A firearm safety device including a stop tab, a locking strap and a lock tab. The stop tab has an inner end adapted to abut against the muzzle of a firearm. The locking strap is attached to the stop tab and is adapted to be insertable into and through the barrel of a firearm. The locking strap has a plurality of transverse teeth located on an outer surface thereof. The lock tab is removably attached to the stop tab and has a lock housing with a transverse aperture extending therethrough that is adapted to receive the locking strap. The lock housing is adapted to allow the teeth of the locking strap to pass through the transverse aperture as the lock tab is being inserted onto the locking strap, but to prevent removal of the lock tab from the locking strap once insertion has started.
Description




BACKGROUND OF THE INVENTION




The present invention relates to a firearm safety device that provides visual proof that there is no ammunition in the barrel of the firearm and prevents ammunition from being loaded therein until the device is removed.




There have been many suggestions for safety devices that prevent firearms from being accidentally discharged. Such prior art devices include trigger locks, magazine locks, firing pin locks, barrel inserts, cable locks, padlocks, chamber plugs, and electronically programmable devices which allow the firearm to be operated only by an authorized user. Such devices are typically expensive because they have been designed to thwart ingenious children from removing the safety device in a household setting.




There is a need, however, for an inexpensive device which can be used in an adult setting where numerous firearms are present, such as police and military firearm storage areas, gun shows, stores where firearms are sold, etc.




SUMMARY OF THE PRESENT INVENTION




It is an object of the present invention to provide a relatively inexpensive safety device for firearms which prevents the firearm from being accidentally discharged.




It is another object of the present invention to provide a firearm safety device that provides excellent visual proof that the firearm is protected from accidental discharge by a safety device.




The firearm safety device of the present invention includes a stop tab, a locking strap and a lock tab.




The stop tab has an inner end adapted to abut against the muzzle of a firearm.




The locking strap extends from the inner end of the stop tab and is integral and unitary therewith. The locking strap is adapted to be insertable into and through the bore of a firearm barrel and out of the breach opening. The locking strap has a plurality of transverse teeth located on an outer surface thereof.




The lock tab is removably attached to the outer end of the stop tab and has a lock housing with an aperture extending therethrough adapted to receive the locking strap and adapted to allow the teeth of the locking strap to pass through as the lock tab is being inserted onto the locking strap but to prevent removal of the lock tab from the locking strap once insertion is complete.











BRIEF DESCRIPTION OF THE DRAWINGS





FIGS. 1A

,


1


B and


1


C are top perspective views of the firearm safety device of the present invention;





FIG. 2

is a top plan view of the firearm safety device of the present invention;





FIG. 3

is a side elevation view of the firearm safety device of the present invention;





FIG. 4

is an enlarged cross-sectional side view of the lock tab showing a portion of the locking strap locked therein; and





FIG. 5

is a perspective view of a pistol showing the firearm safety device of the present invention locked in place.











DESCRIPTION OF PREFERRED EMBODIMENTS




The firearm safety device


10


of the present invention includes a stop tab


12


, an elongated locking strap


14


extending from the inner end of stop tab


12


, locking strap


14


being integral and unitary with stop tab


12


, and a lock tab


20


releasably attached to the outer end of stop tab


12


.




Stop tab


12


is shown as having a periphery that is generally rectangular in shape, although other shapes could be used, such as circular, oval, etc. The width dimension of stop tab


12


is that dimension perpendicular to the longitudinal axis of locking strap


14


extended, and is of a size that is larger than the largest caliber bore for which the device is intended to be used. The inner end of stop tab


12


is that end attached to locking strap


14


, and the outer end of stop tab


12


is that end attached to lock tab


20


.




Locking strap


14


contains a plurality of locking teeth


16


extending upwardly from the upper surface of locking strap


14


and transverse to the longitudinal axis of locking strap


14


. As best seen in

FIG. 4

, each tooth


16


has a cross-section that is a right triangle with an inclined leading face or ramp


17


and a trailing face


18


that is substantially perpendicular to the longitudinal axis of locking strap


14


.




Locking strap


14


has a cross-section that is shown as being generally rectangular in shape, although other cross-sectional shapes, such as circular, may be used.




Lock tab


20


is releasably attached to stop tab


12


by any suitable means, such as by at least one, but preferably at least two, break-away joints or spiders


22


. Preferably lock tab


20


is releasably attached to the outer end of stop tab


12


, as seen in

FIGS. 1-3

. However, lock tab


20


may, alternatively, be releasably attached to one of the side edges of stop tab


12


.




A lock housing


30


extends above the upper planar surface of lock tab


20


. Lock housing


30


has a transverse aperture


32


extending from an entry end to an exit end thereof. Transverse aperture


32


extends through lock housing


30


and through the adjacent underlying area of lock tab


20


, as shown. Lock housing


30


has a sloping rear wall terminating in upper lip


34


and a vertical front wall terminating in upper lip


34


′. Substantially parallel side walls extend between the outer edges of the front and rear walls. The front wall and side walls are substantially perpendicular to the upper surface of lock tab


20


.




Opposed upper lips


34


,


34


′, together with adjacent sidewalls of lock housing


30


, form the exit end of aperture


32


. Sloping rear wall terminating in upper lip


34


of lock housing


30


is somewhat flexible and acts as a deflectable restraining member relative to teeth


16


of locking strap


14


, as will be discussed further below.




Holes (not shown) may be placed through either or both of stop tab


12


and lock tab


20


, respectively, to receive price tags, evidence tags, etc.




In use, the firearm


40


to be secured against accidental discharge is checked, and any cartridge remaining in the barrel


42


removed. Firearm


40


is illustrated in

FIG. 5

as an automatic or semi-automatic pistol. However, firearm safety device


10


may be used with other types of pistols or rifles having a breech opening. For use with rifles, locking strap


14


would be longer than for use with pistols.




The tail (free) end of locking strap


14


is inserted into the muzzle


44


of the firearm


40


, and pushed therethrough until it enters the breech opening


46


of firearm


40


where it can be pulled outwardly until the inner end of stop tab


12


abuts the muzzle


44


of the firearm


40


.




Lock tab


20


is then removed from stop tab


12


by bending lock tab


20


back and forth relative to stop tab


12


until break-away joints


22


break.




The tail end of locking strap


14


is then inserted into the entry opening of aperture


32


. The tail end of locking strap


14


has no teeth


16


for a distance sufficient to allow the tail end to extend upwardly from the exit opening of aperture


32


a distance sufficient to allow the user to grasp the tail end with his/her fingers. Lock tab


20


is then pushed inwardly along locking strap


14


in the direction shown by the arrow in

FIG. 4

until the lower surface of lock tab


20


abuts firearm


40


adjacent the outer perimeter of breech opening


46


.




During positioning of lock tab


20


onto locking strap


14


the sloping walls


17


of locking teeth


16


push flexible lip


34


of lock housing


30


outwardly a distance sufficient to allow teeth


16


to pass through the outer opening of transverse aperture


32


.




Upon complete insertion of lock tab


20


onto locking strap


14


, the trailing edge


18


of the tooth


16


abutting the upper lip


34


of lock housing


30


prevents lock tab


20


from being removed from strap


14


, as best seen in FIG.


4


. The firearm


40


is now secure against accidental discharge, and that fact is readily observable by an individual upon seeing stop tab


12


extending from the muzzle


44


and the tail end of locking strap


14


extending from breech opening


46


.




The color of stop tab


12


can be selected to be particularly noticeable, such as fluorescent orange or red. Stop tab


12


can contain a suitable inscription, such as “CLEAR BARREL”, to further indicate that the firearm is secured against accidental discharge.




In order to provide a “universal” safety device


10


, the width of locking strap


14


can be selected to be slightly smaller than the diameter of the smallest caliber commonly available firearm, e.g. 0.20 inch for use with 0.22 caliber and larger caliber firearms. In addition, in such “universal” devices the width of stop tab


12


would be larger than the largest caliber bore for which the device is to be used.




Locking strap


14


can be made available in a variety of lengths to accommodate different barrel lengths, from pistol barrel lengths to rifle barrel lengths.




Locking strap


14


is flexible and is preferably formed of a plastic material, such as nylon. Locking strap


14


has a tensile strength sufficient to prevent breaking by application of manual force. Locking strap


14


must be cut in order to remove it from a firearm to which it is attached. A wire or wires (not shown) may be embedded within locking strap


14


in order to make cutting more difficult.




Stop tab


12


, locking strap


14


, locking tab


20


and break-away joints


22


are preferably formed as a single piece, such as by injection molding.




It will be obvious to those having skill in the art that many changes may be made to the details of the above-described embodiments of this invention without departing from the underlying principles thereof. The scope of the present invention should, therefore, be determined only by the following claims.



Claims
  • 1. A firearm safety device comprising:a stop tab having inner and outer ends, said inner end adapted to abut against the muzzle of a firearm; an elongated locking strap adapted to be insertable into and through the bore of a firearm barrel, said locking strap having first and second ends and upper and lower surfaces, said first end of said locking strap being attached to said inner end of said stop tab, said locking strap having a plurality of transverse teeth extending above at least a portion of the upper surface thereof; a lock tab having upper and lower planar surfaces, said lock tab being removably attached to said stop tab by at least two break-away joints; and a lock housing extending from at least one of the planar surfaces of said lock tab, said lock housing having a transverse aperture adapted to receive said locking strap for insertion therethrough, said lock housing adapted to receive and allow said transverse teeth of said locking strap to pass through said transverse aperture during insertion but to prevent removal of said locking strap from said lock housing after insertion has commenced.
  • 2. The firearm safety device of claim 1 wherein said lock tab is removably attached to said outer end of said stop tab.
  • 3. A method for securing a firearm against accidental discharge comprising:opening the breech of the firearm; removing any cartridges from the barrel of the firearm; obtaining a firearm safety device having a stop tab, elongated locking strap and lock tab, said stop tab having inner and outer ends, said elongated locking strap having first and second ends and upper and lower surfaces, said first end of said locking strap being attached to said inner end of said stop tab, said locking strap having a plurality of transverse teeth extending above at least a portion of the upper surface thereof, said lock tab having upper and lower planar surfaces, said lock tab being removably attached to said stop tab, said lock tab having a lock housing extending from at least one of the planar surfaces of said lock tab, said lock housing having a transverse aperture adapted to receive said locking strap for insertion therethrough, said lock housing adapted to receive and allow said transverse teeth of said locking strap to pass through said transverse aperture during insertion but to prevent removal of said locking strap from said lock housing after insertion has commenced; inserting said locking strap into the bore of said firearm until said locking strap exits the breech opening of said firearm and said stop tab abuts against the muzzle of said firearm; removing said lock tab from said stop tab; and inserting said locking strap into said lock housing of said lock tab until said lock tab abuts against said firearm.
  • 4. A method for securing a firearm against accidental discharge comprising:opening the breech of the firearm; removing any cartridges from the barrel of the firearm; taking a firearm safety device having a stop tab, elongated locking strap and lock tab, said stop tab having inner and outer ends, said elongated locking strap having first and second ends and upper and lower surfaces, said first end of said locking strap being attached to said inner end of said stop tab, said locking strap having a plurality of transverse teeth extending above at least a portion of the upper surface thereof, said lock tab having upper and lower planar surfaces, said lock tab being removably attached to said stop tab, said lock tab having a lock housing extending from at least one of the planar surfaces of said lock tab, said lock housing having a transverse aperture adapted to receive said locking strap for insertion therethrough, said lock housing adapted to receive and allow said transverse teeth of said locking strap to pass through said transverse aperture during insertion but to prevent removal of said locking strap from said lock housing after insertion has commenced; removing said lock tab from said stop tab; inserting said locking strap into the bore of said firearm until said locking strap exits the breech opening of said firearm and said stop tab abuts against the muzzle of said firearm; and inserting said locking strap into said lock housing of said lock tab until said lock tab abuts against said firearm.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No. 60/378,856, filed May 7, 2002 now abandoned.

US Referenced Citations (16)
Number Name Date Kind
3484905 Eberhardt Dec 1969 A
3720614 Goodrich Mar 1973 A
4079485 Collier et al. Mar 1978 A
4412397 Bayn Nov 1983 A
4516293 Beran May 1985 A
4665588 Nakano May 1987 A
4705245 Osada Nov 1987 A
5016377 Gunning May 1991 A
5038508 Brown Aug 1991 A
5136758 Wilcox et al. Aug 1992 A
5766218 Arnott Jun 1998 A
5934000 Hayes, Sr. Aug 1999 A
6347435 Davignon et al. Feb 2002 B1
6539589 Thompson Apr 2003 B2
20020189148 Hanson Dec 2002 A1
20030172572 Clark Sep 2003 A1
Foreign Referenced Citations (1)
Number Date Country
1014768 Dec 1965 GB
Provisional Applications (1)
Number Date Country
60/378856 May 2002 US