Information
-
Patent Grant
-
6418655
-
Patent Number
6,418,655
-
Date Filed
Thursday, August 19, 199925 years ago
-
Date Issued
Tuesday, July 16, 200222 years ago
-
Inventors
-
-
Examiners
Agents
- Shlesinger, Arkwright & Garvey LLP
-
CPC
-
US Classifications
Field of Search
US
- 042 7008
- 042 7502
- 089 185
- 089 18701
- 089 18702
-
International Classifications
-
Abstract
A shotgun comprises a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking block configured to project into the barrel portion and lock the bolt assembly to the barrel prior to firing, the bolt assembly including a firing pin; and a trigger mechanism including a hammer for striking the firing pin.
Description
FIELD OF THE INVENTION
The present invention relates generally to a shotgun and particularly to a lightweight underbarrel shotgun configured to be secured to a main rifle. The present invention also relates to a bolt assembly, a safety mechanism, a trigger mechanism, and a choke and a retractable stand-off device for use in a firearm such as a shotgun.
BACKGROUND OF THE INVENTION
Law enforcement people have found shotguns to be useful for certain applications, such as blasting door locks, windows and even walls to gain entry into a structure in the course of their work. An officer's standard rifle, such as the AR-15 or M-16, could not efficiently do what a shotgun can do. Thus, a dedicated shotgun is typically carried, in addition to the usual rifle, if use of a shotgun is expected in a situation.
There is, therefore, a need to add the capability of a shotgun to an existing rifle to save the officer from carrying two long barrel guns. However, for the shotgun to be useful, it should be lightweight and should weigh less than the combined weight of the two individuals firearms. Additionally, the shotgun should have safety features and ease of use comparable to the standard rifle.
In a single shot firearm, the bolt is typically pulled back to discharge the spent cartridge and load a new cartridge, and pushed back to place the cartridge in the firing chamber and lock the bolt. However, the motions of pulling back and pushing forward are not simple straight line motions. For example, to unlock the bolt, one may have to lift the bolt handle before one can pull it back. In some guns, the motions could be more complicated.
There is, therefore, a need for single shot firearm where a simple straight line motion of pulling or pushing the bolt handle to eject or load a cartridge also unlocks or locks the bolt at the same time.
When a standard shotgun is used to break down a door lock, the end of the barrel is typically placed some distance from the target, to avoid damage to the barrel from flying debris or deflected pellets. If the shotgun is equipped with a stand-off device, the shotgun barrel can rest directly on the target, since the stand-off device will contain any deflected debris or shots. Since not every situation will require a stand-off device, provisions should be provided to allow its quick removal without too much inconvenience.
There is, therefore, a need for a shotgun equipped with a stand-off device that can be easily and quickly deployed or removed as needed.
Since the shotgun is mounted to a main rifle, it is desirable to be able to use the main rifle's sight for shotgun. To do this, the mounting assemblies for the shotgun should have adjustments to orient the shotgun in relation to the sight.
There is, therefore, a need for mounting assemblies used to secure a shotgun to a main rifle to have adjustment capabilities, such as for range adjustment, so the main rifle's sight can also be used for the shotgun.
Safety of use is always a concern to the user. Prior art firearms are equipped with safety devices that are actuated with small levers, which are hard to see. Thus, one has to look hard or feel its position to determine whether the safety device is on or not. It is, therefore, desirable for a firearm to have adequate and dependable safety features that are easy to use and easy to see whether it is ON or OFF.
In severe cold weather conditions, a user could be wearing heavy gloves while being required to operate a firearm. Where the trigger guard is fixed and immovable, the user's gloved index finger may not fit into the space of the trigger. A trigger guard that can swing out of the way to provide additional finger room at the trigger is, therefore, desirable.
Since an auxiliary gun, such as a shotgun, mounted to a main rifle would not be expected to be used most of the time, it should be as unobtrusive as possible to the user whenever it is not being used. The bolt handle is one part of the gun that can get in the way. It is, therefore, desirable that the bolt handle be provided such that it can be moved out of the way when the shotgun is not being used. Further, since the shotgun can be used by either a left or right-handed person, the bolt handle should be ambidextrous.
OBJECTS AND SUMMARY OF THE INVENTION
It is an object of the present invention to provide an underbarrel shotgun for attachment to a main rifle that is relatively lightweight and easy to use.
It is another object of the present invention to provide an underbarrel shotgun with a bolt assembly that uses a simple translatory straight line motion of pulling back or pushing on a handle to unlock or lock the bolt and eject and load a new cartridge into the firing chamber.
It is still another object of the present invention to provide an underbarrel shotgun that includes a safety mechanism that prevents the hammer from being released and the trigger from being actuated.
It is another object of the present invention to provide an underbarrel shotgun with a choke and a retractable stand-off device that positively locks in place either in the retracted or extended position.
It is another object of the present invention to provide an underbarrel shotgun that includes a front mount that allows for range adjustment to permit use of the main rifle's sight.
It is another object of the present invention to provide an underbarrel shotgun that includes a pivotable trigger guard that can be swung out of the way so that a user with bulky gloves can still operate the trigger.
It is also another object of the present invention to provide a shotgun secured to a main rifle whose magazine case functions as handle for the shotgun when in use.
In summary, the present invention provides a gun, comprising a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking block configured to project into the barrel portion and lock the bolt assembly to the barrel prior to firing, the bolt assembly including a firing pin; and a trigger mechanism including a hammer for striking the firing pin.
The present invention also provides a bolt assembly for a single shot firearm, comprising a bolt; a bolt carrier slidably connected to the bolt; a firing pin disposed in a longitudinal opening through the bolt and bolt carrier; a locking block configured to lock the bolt assembly preparatory to firing, the bolt including a recess into which the locking block is disposed. The bolt and the locking block include respective slots inclined opposite to one another. The bolt assembly includes a bolt carrier having a vertical slot, and a pin received through the slots thereby to secure the bolt to the bolt carrier. The slots are configured such that translatory movement of the bolt carrier causes the locking block to move vertically within the recess.
The present invention further provides a retractable stand-off device for a shotgun, comprising a tubular member for securing to an end of a barrel, the tubular member including an annular flange having an axial slot; a compressible ring secured against the annular flange; a collar secured to another end of the tubular member and engaging the compressible ring, the collar including an axial slot; and a sleeve disposed around the tubular member in a sliding and concentric manner, the sleeve including a plurality of holes. A rear end of the sleeve includes a pin disposed inwardly and positionable between the annular flange and the compressible ring when the sleeve is extended relative to the tubular member. Similarly, a front end of the sleeve includes a pin disposed inwardly and positionable between the collar and the compressible ring when the sleeve is retracted relative to the tubular member.
The present invention also provides a safety mechanism for a firearm having a trigger for releasing a hammer, comprising a pivotable frame including a member. The frame is positionable from a first position wherein the member is disposed clear of the trigger, to a second position wherein the member is disposed behind the trigger to prevent the trigger from being pulled back.
The present invention further provides a trigger mechanism for a gun, comprising a hammer and a latch configured to hold the hammer in a cocked position; and a trigger operably connected to the latch such that pulling back the trigger is effective to move the latch and release the hammer. The trigger is movable through a first range of motion wherein the hammer is not released and a second range of motion wherein the hammer is released.
The present invention also provides a multiple firearm, comprising a main rifle including a barrel portion and magazine case; and a shotgun secured underneath the barrel portion. The shotgun includes a trigger disposed adjacent the magazine case such that the magazine case functions as a handle when the shotgun is being used.
These and other objects of the present invention will become apparent from the following detailed description.
BRIEF DESCRIPTIONS OF THE DRAWINGS
FIG. 1
is a front perspective view of an underbarrel shotgun made in accordance with the present invention.
FIG. 2
is a perspective view of a barrel and a bolt assembly made in accordance with the present invention.
FIG. 3
is a perspective view of the bolt assembly of FIG.
2
.
FIG. 4
is an assembly view of the bolt assembly of FIG.
3
.
FIG. 5
is a cross-sectional view through the receiver of the underbarrel shotgun shown of
FIG. 1
, and shows the bolt assembly in the locked firing position, a safety mechanism in the operative ON position and a trigger guard in the open position.
FIG. 6
is a cross-sectional view taken along line
6
—
6
of FIG.
5
.
FIG. 7
is a cross-sectional view taken through the receiver of the shotgun, showing the bolt assembly in the process of being pulled back and the locking block completely disengaged from the barrel.
FIG. 8
is a cross-sectional view through the receiver of the shotgun, showing the hammer striking the firing pin.
FIG. 9
is a cross-sectional view through the receiver of the shotgun, showing the bolt assembly completely pulled back and a new cartridge being loaded preparatory to being positioned inside the barrel.
FIG. 10
is a perspective view of the trigger and safety mechanisms made in accordance with the present invention.
FIG. 11
is an assembly view of a choke and stand-off assembly made in accordance with the present invention.
FIG. 12
is a cross-sectional view through the choke and stand-off assembly, showing the stand-off in the extended position.
FIG. 13
is a cross-sectional view of the stand-off in the retracted position and the front mounting assembly made in accordance with the present invention.
FIG. 14
is a side elevational view of the underbarrel shotgun of
FIG. 1
, shown secured to a main rifle.
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in the embodiment of a shotgun. However, it should be understood that the invention is also applicable to other types of guns.
An underbarrel shotgun R made in accordance with the present invention is disclosed is FIG.
1
. The shotgun R comprises a barrel
2
, preferably made from steel, joined to a receiver
4
, preferably made from aluminum or some other lightweight material. A bolt assembly
6
resides within the receiver
4
and is slidable therewithin pulling back on a handle
8
to retract and eject a spent cartridge
10
(see
FIG. 7
) and to load a new cartridge from a magazine case
12
into the barrel
2
. Front mounting assembly
14
and rear mount
16
are provide to attach the shotgun R to the main rifle. A choke and stand-doff assembly
18
is removably secured to the barrel
2
.
A screw collar
20
secures the barrel
2
to the receiver
4
. The screw collar
20
has internal threads that mate with corresponding outside threads on a portion of the receiver
4
such that an annular flange
22
on the barrel
2
is captured within the screw collar
20
, as best shown in
FIGS. 1
,
2
and
5
.
The barrel
2
includes a portion
24
that extends into the receiver
4
and includes an opening
26
that receives a locking block
28
that locks the bolt assembly
6
to the barrel
2
prior to firing of the cartridge
10
. An indentation
32
provides clearance for the end of threaded member
34
of the front mounting assembly
14
(see FIG.
1
). A locating pin
36
is received within a corresponding slot (not shown) in the receiver
4
to aid in lining up the barrel with the receiver during assembly.
Referring to
FIGS. 3 and 4
, the bolt assembly
6
includes a bolt
40
operably connected to a bolt carrier
36
. The bolt
34
has a flat portion
38
that is received within a corresponding slot
40
in the carrier
36
and slidable therewith. A recess
42
in the bolt
34
slidably receives the locking block
28
. A spring
44
disposed at the bottom of the recess
42
urges the locking block
28
upwardly, as best shown in FIG.
5
.
An elongated inclined slot
46
is disposed through the thickness of the locking block
28
. A pair of parallel and aligned elongated slots
48
are disposed in the flat portion
38
and are inclined with a slope opposite to the slope of the slot
46
. A vertical elongated slot
50
and a matching vertical elongated recess
52
are disposed at one end of the bolt carrier
36
. A pin
54
is received through the slots
46
,
48
,
50
and the recess
52
to hold the bolt assembly
6
together, as best shown in
FIGS. 3 and 6
.
A square recess
56
holds a correspondingly square post
58
of the handle
8
and is secured therein with a pin
60
.
Referring to
FIG. 5
, the bolt assembly
6
includes a firing pin
62
that is urged by a spring
64
toward the rear of the gun and away from the cartridge
10
. A pin
66
engaging an annular flange
68
holds the firing pin
62
against the force of the spring
64
. The firing pin
62
has a reduced diameter portion
70
that is receivable within the smaller slot
72
of the keyhole slot
74
in the locking block
28
when the locking block is in the down position, as best shown in FIG.
7
. The firing pin
62
has a larger diameter portion
76
that is larger than the smaller slot
72
in the locking block
28
such that the firing pin
62
is prevented from accidentally moving forward and striking the cartridge
10
.
A hammer
78
is released by a trigger mechanism
80
to hit the rear end of the firing pin
62
, thereby discharging the cartridge
10
, as best shown in
FIGS. 5 and 8
. The trigger mechanism includes a trigger
82
connected to a slidable member
84
by a pin
86
. A latch member
88
is connected to the slidable member
84
by means of a longitudinal member
90
. A spring
92
is disposed between a stationary stop
94
and the latch member
88
to urge the latch member
88
toward the hammer
78
. A gap
96
allows the trigger
92
to be pivoted about the pin
86
without releasing the hammer
78
, thereby to provide some slack in the trigger mechanism. The play in the trigger movement provided by the gap
96
advantageously provides the user with greater sense of control when pulling the trigger. Further pressure on the trigger
82
causes the member
88
to move back in a sliding manner through a gap
98
, pulling the latch member
88
with it to release the hammer
78
. The hammer
78
is spring loaded to cause it to rotate about a pin
100
with sufficient force to strike the firing pin
62
and cause the cartridge
10
to discharge, as best shown in FIG.
8
.
When the trigger
82
is released, the spring
92
moves the latch member
88
forwardly, ready to accept the hammer
78
. A spring (not shown) returns the trigger to its original position about the pin
86
. After firing, the bolt assembly
6
is pulled back by means of the handle
8
to eject the spent cartridge through a side opening
102
in the receiver
4
, as best shown in FIG.
1
.
As the handle
8
is pulled back, the bolt carrier
36
moves away from the bolt
34
. The pin
54
will travel from the front to rear of the slots
46
and
48
and from the top to the bottom of the vertical slots
50
and the recess
52
. As the pin traverses these slots, as the bolt carrier
36
is pulled back, the locking block
28
will recede into the recess
42
and retract from the opening
26
in the barrel
2
, thereby releasing the bolt assembly
6
from the barrel
2
. A longitudinal groove
104
disposed on an inside surface of the receiver
4
guides an extending end portion
106
of the pin
54
(see FIG.
3
), as the bolt assembly
6
is pulled back, as best shown in
FIG. 8. A
front portion of the groove
104
is inclined and aligned with the slot
48
in the bolt
34
. The locking block
28
is advantageously held immobile within the recess
42
to prevent it from scraping the inside surface of the receiver as the bolt assembly
6
is slid back and forth within the receiver
4
.
As the bolt assembly
6
is pulled back, the shoulder
108
of the bolt carrier
36
pushes the hammer
78
until it is engaged by the latch member
88
, as best shown in
FIGS. 7 and 9
. Sloping surface
110
on the hammer
78
and sloping surface
114
on the latch member
88
advantageously provides a smooth cocking action. A resilient member
116
, preferably made of rubber, acts as a bumper stop against the rear end of the bolt assembly
6
as its pulled back.
The end portion of the bolt carrier
36
has a recess
118
to allow the end portion of the firing pin
62
to be recessed in the rear face of the bolt carrier
36
, as best shown in
FIGS. 5 and 9
. The bolt carrier
36
is fluted to reduce weight.
A new cartridge
10
is loaded into the receiver by standard means provided by the standard magazine
12
.
Referring to
FIGS. 3 and 5
, the handle
8
is positionable either to the left or right of the shotgun R, depending on the user's preference, or parallel to the bolt assembly
6
when the shotgun R will not be in use. The post
58
is provided with a portion
120
with a square cross-section and a portion
122
with a circular cross-section. A sleeve
124
includes a portion
126
with a square cross-section that mates with the square portion
120
. A spring
128
disposed within the sleeve
124
urges the sleeve
124
against a clip
130
. A longitudinal member
132
is attached to the sleeve
124
. To change the position of the handle
8
, the sleeve
124
is lifted upwardly against the spring
128
until the square portion
130
is positioned in the circular portion
122
. The member
132
is then rotated 90° or 180°, depending on the desired position of the handle and the square portion
126
is then allowed to mate with the corresponding square portion
120
of the post
58
.
Referring to
FIGS. 5 and 7
, the shotgun R is provided with a safety mechanism
34
that prevents the hammer
78
from accidentally being released. The safety mechanism
134
includes a U-shape bracket
136
pivotable about a pin
138
with a flat portion
140
that engages a corresponding flat portion
142
in the hammer
78
, as best shown in FIG.
5
. When the safety mechanism
134
is in the OFF non-safety position, as best shown in
FIG. 7
, the flat portion
140
is disposed vertically such that it does not project a surface onto the flat portion of the hammer
78
. In this position, the hammer is free to rotate about its pin
100
. When the bracket
136
is lowered to the ON safety position, as best shown in
FIG. 5
, the flat portion
140
engages and butts against the flat portion
142
, thereby locking the hammer
78
even if the trigger
82
is pulled.
The bracket
36
when in the ON safety position advantageously provides a visual sign that is readily easy to see for the user to determine whether the safety mechanism is ON and provides an obstruction in the area of the trigger
82
to prevent the user from inserting his finger operating into the area to operate the trigger. In addition, the rear end of the bracket
136
prevents backward movement of the trigger
82
, as best shown in FIG.
5
.
Referring to
FIGS. 5 and 7
, the shotgun R is provided with a trigger guard
144
pivotable about a pin
146
to allow a user with bulky gloves to still operate the trigger
82
.
Referring to
FIG. 10
, the members
84
,
90
and
88
are disposed in a housing
139
(only one-half shown) that allows them to move only in a sliding translatory manner. Thus, the pivoting motion of the trigger
82
is ineffective in the releasing the hammer
78
. At the end of the pivoting motion, as the trigger
82
bottoms out, the member
84
begins to translate as the trigger is further pulled back.
Referring to
FIGS. 11 and 12
, the choke and stand-off assembly
18
comprises a choke
148
and a retractable stand-off device
150
. The choke
148
is screwed to the end of the barrel
2
by means of outside threads
152
that mate with corresponding inside threads
154
inside the barrel
2
. An annular flange
156
with a pair of diametrically opposed slots
58
provides a stop to a composite ring
160
which is secured in place by a collar
162
screwed onto outside threads
164
that cooperate with corresponding inner threads
166
on the collar
162
. The annular flange
156
includes a pair of diametrically opposed semicircular recesses
168
. The collar
162
includes a pair of diametrically opposed slots
170
and a pair of diametrically opposed half-circular recesses
172
.
The ring
160
includes a resilient ring
174
, preferably made of rubber, sandwiched between two metal rings
176
.
The stand-off device
150
includes a plurality of holes
178
to allow expanding gas to escape when the shotgun is fired with the stand-off device is extended and pressed against the target. A pair of diametrically opposed pins
180
extending inwardly into the stand-off device
150
are used to lock the stand-off
150
in the extended position. A pair of diametrically opposed pins
182
extending inwardly into the stand-off device
150
are use to lock the stand-off
150
in the retracted position.
Referring to
FIG. 12
, showing the stand-off device
150
in the extended position, the pins
180
are passed from behind the annular flange
156
through the slots
158
. The composite ring
162
is compressed and the pins
182
are forced between the annular flange
156
and the composite ring
160
until they rest in the respective recesses
168
.
Referring to
FIG. 13
, showing the stand-off device
150
in the retracted position, the pins
182
are passed through the slots
170
from the front of the collar
162
and wedged between the collar
162
and the composite ring
160
until they rest in the respective recesses
172
.
Referring to
FIGS. 1 and 13
, the front mount
14
includes a clamp assembly
184
secured around the barrel
2
, a clamp assembly
186
for being secured around a frame portion of the main rifle and an intermediate assembly
188
secured to the clamp assembly
186
by a pin
190
and to the clamp assembly
184
by a threaded member
192
. The intermediate assembly
188
includes a pair of holes
184
, each disposed at right angle to each other. Each of the holes
194
is configured to receive the pin
190
. A detent
196
engages a corresponding depression on the intermediate assembly
188
at 90° intervals to provide a positive stop to the intermediate assembly
188
which is turned into or out of the clamp assembly
184
when adjusting for range. The clamp assembly
186
stays secured to the main rifle. To adjust for range, the clamp assembly
184
is disconnected from the clamp assembly
186
by removing the pin
194
. The intermediate assembly
188
is then turned one or more quarter turns into or out of the clamp assembly
184
to make the proper range adjustment.
The rear mount
16
is substantially U-shaped with a circular opening
198
adopted to engage a barrel portion of the main rifle. A smaller opening
200
is provided to allow a reduced diameter portion of the main rifle barrel
2
to pass through the mont
16
and be positioned within the larger opening
198
at which time the shotgun is moved into the larger diameter barrel portion of the main rifle where the inner surface of the mount
16
defining the larger opening
198
makes contact with the barrel surface of the main rifle.
Referring to
FIG. 14
, the underbarrel shotgun R is shown mounted to a main rifle
202
. The receiver
4
has a pair of opposed extending portions
204
configured to receive therebetween a portion of the main rifle to stabilize the shotgun R when mounted to the main rifle. The trigger
82
is advantageously positioned adjacent to a magazine case
206
of the main rifle which acts as a handle for the shotgun R.
While this invention has been described as having preferred design, it is understood that it is capable of further modification, uses and/or adaptations following in general the principle of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains, and as may be applied to the essential features set forth, and fall within the scope of the invention or the limits of the appended claims.
Claims
- 1. A gun, comprising:a) a receiver made from a first material; b) barrel having a portion extending into said receiver and made from a second material; c) a collar nut securing said barrel to said receiver; d) a bolt assembly disposed within said receiver and including a locking block configured to project into said barrel portion and lock said bolt assembly to said barrel prior to firing; e) said bolt assembly including a firing pin; f) a trigger mechanism including a hammer for striking said firing pin; g) said bolt assembly including a bolt having a recess into which said locking block is disposed; h) said bolt and said locking block including respective slots inclined opposite to one another; i) said bolt assembly including a bolt carrier having a vertical slot; j) said bolt assembly including a pin received through said slots thereby to secure said bolt to said bolt carrier; and k) said slots are configured such that translatory movement of said bolt carrier causes said locking block to move vertically within said recess.
- 2. A gun, comprising:a) a receiver made from a first material; b) barrel having a portion extending into said receiver and made from a second material; c) a collar nut securing said barrel to said receiver; d) a bolt assembly disposed within said receiver and including a locking block configured to project into said barrel portion and lock said bolt assembly to said barrel prior to firing; e) said bolt assembly including a firing pin; f) a trigger mechanism including a hammer for striking said firing pin; g) said bolt assembly including a bolt having a recess into which said locking block is disposed; h) said locking block includes a keyhole opening; i) said bolt assembly including a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and said bolt carrier and through said keyhole opening; j) said keyhole opening including a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through; and k) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said keyhole opening, thereby preventing forwardly movement of said firing pin.
- 3. A gun, comprising:a) a receiver made from a first material; b) barrel having a portion extending into said receiver and made from a second material; c) a collar nut securing said barrel to said receiver; d) a bolt assembly disposed within said receiver and including a locking block configured to project into said barrel portion and lock said bolt assembly to said barrel prior to firing; e) said bolt assembly including a firing pin; f) a trigger mechanism including a hammer for striking said firing pin; g) said bolt assembly including a handle; and h) said handle is positionable transversely to one side or another side of said receiver.
- 4. A gun as in claim 3, wherein:a) said first material is aluminum.
- 5. A gun as in claim 3, wherein:b) said second material is steel.
- 6. A gun as in claim 3, wherein:a) said firing pin includes end portions recessed within said bolt assembly.
- 7. A gun as in claim 3, wherein:a) said hammer is pivotable from a cocked position about a pivot to a firing position; and b) said bolt assembly is adapted to engage and move said hammer to said cocked position as said bolt assembly is pulled back.
- 8. A gun as in claim 7, wherein:a) said cocked position is substantially horizontal; and b) said firing position is substantially vertical.
- 9. A gun as in claim 3, wherein:a) said trigger mechanism includes a trigger pivotable about a pivot carried by a body movable horizontally; and b) said hammer is released when said trigger is pivoted and said body is moved horizontally.
- 10. A gun as in claim 3, wherein:a) said handle is positionable parallel to said barrel.
- 11. A bolt assembly for a single shot firearm, comprising:a) a bolt; b) a bolt carrier sidably connected to said bolt; c) a firing pin disposed in a longitudinal opening through said bolt and bolt carrier; d) a locking block configured to lock said bolt assembly preparatory to firing; e) said bolt includes a recess into which said locking block is disposed; f) said bolt and said locking block includes respective slots inclined opposite to one another; g) said bolt assembly includes a bolt carrier having a vertical slot; h) said bolt assembly includes a pin received through said slots thereby to secure said bolt to said bolt carrier; and i) said slots are configured such that translatory movement of said bolt carrier causes said locking block to move vertically within said recess.
- 12. A bolt assembly as in claim 11, wherein:a) said locking block includes a keyhole opening; b) said bolt assembly includes a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and said bolt carrier and through said key hole opening; c) said keyhole opening includes a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through; and d) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said key hole opening, thereby preventing forwardly movement of said firing pin.
- 13. A gun, comprising:a) a barrel and a receiver operably secured to said barrel; b) a bolt assembly disposed within said receiver; c) said bolt assembly including a firing pin; d) a trigger mechanism including a hammer for striking said firing pin; e) said bolt assembly including a bolt having a recess into which said locking block is disposed; f) said bolt and said locking block including respective slots inclined opposite to one another; g) said bolt assembly including a bolt carrier having a vertical slot; h) said bolt assembly including a pin received through said slots thereby to secure said bolt to said bolt carrier; and i) said slots are configured such that translatory movement of said bolt carrier causes said locking block to move into or out of said recess.
- 14. A gun, comprising:a) a barrel and a receiver operably secured to said barrel; b) a bolt assembly disposed within said receiver; c) said bolt assembly including a recess into which said locking block is disposed; d) said bolt assembly including a firing pin; e) a trigger mechanism including a hammer for striking said firing pin; f) said bolt assembly including a bolt having a recess into which said locking block is disposed; g) said locking block including a keyhole opening; h) said bolt assembly including a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and said bolt carrier and through said keyhole opening; i) said keyhole opening including a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through; and j) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said keyhole opening, thereby preventing forwardly movement of said firing pin.
- 15. A bolt assembly for a single shot firearm, comprising:a) a bolt; b) a firing pin disposed in a longitudinal opening through said bolt; c) a locking block configured to lock said bolt assembly preparatory to firing; d) said bolt including a recess into which said locking block is disposed; e) said locking block including a keyhole opening; f) said bolt assembly including a firing pin having a smaller diameter portion and a larger diameter portion, said smaller diameter portion is next to and forwardly of said larger diameter portion, said firing pin being received within a longitudinal opening of said bolt and through said key hole opening; g) said keyhole opening including a smaller diameter opening configured to receive said smaller diameter portion and a larger diameter opening configured to allow said larger diameter portion to pass through; and h) said keyhole opening is so disposed such that when said locking block is in a retracted position within said recess, said smaller diameter portion is disposed within said smaller diameter opening of said key hole opening, thereby preventing forwardly movement of said firing pin.
- 16. A bolt assembly for a single shot firearm, comprising:a) a bolt; b) a firing pin disposed in a longitudinal opening through said bolt; c) a locking block configured to lock said bolt assembly preparatory to firing; d) said bolt assembly including a recess into which said locking block is disposed; and e) means for moving said locking block within said recess into a locked or unlocked position, said means for moving including respective slots in said bolt assembly and said locking block and a pin received within said slots.
US Referenced Citations (22)