U.S. patent application number 10/570454 was filed with the patent office on 2007-08-16 for shooting device.
Invention is credited to Michael Raymond Pitt.
Application Number | 20070186457 10/570454 |
Document ID | / |
Family ID | 29226510 |
Filed Date | 2007-08-16 |
United States Patent
Application |
20070186457 |
Kind Code |
A1 |
Pitt; Michael Raymond |
August 16, 2007 |
Shooting device
Abstract
A paintball marker (10) comprises a barrel (11), through which
paintballs may be fired by a firing mechanism (not shown). A handle
(12) is provided to allow a user to comfortably grip the marker
(10) and a trigger (13) is provided, for activating the firing
mechanism. A trigger guard (14) is also provided to help prevent
accidental activation of the firing mechanism. A hopper (15) is
also provided for loading the marker (10) with one or more
paintballs. The marker (10) with one or more paintballs . The
marker (10) is fitted with a switching means (20) operative to
switch the marker (10) between two modes, a live mode in which the
firing mechanism can be activated and a safe mode in which the
firing mechanism cannot be activated. The device is switched
between said modes in response to signals received by a signals
receiving means from a remote source.
Inventors: |
Pitt; Michael Raymond;
(Birmingham, GB) |
Correspondence
Address: |
PEARSON & PEARSON, LLP
10 GEORGE STREET
LOWELL
MA
01852
US
|
Family ID: |
29226510 |
Appl. No.: |
10/570454 |
Filed: |
September 6, 2004 |
PCT Filed: |
September 6, 2004 |
PCT NO: |
PCT/GB04/03800 |
371 Date: |
October 6, 2006 |
Current U.S.
Class: |
42/70.06 ;
124/40; 42/70.01 |
Current CPC
Class: |
F41A 17/46 20130101;
F41A 19/01 20130101; F41A 17/06 20130101 |
Class at
Publication: |
042/070.06 ;
042/070.01; 124/040 |
International
Class: |
F41A 17/00 20060101
F41A017/00 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 4, 2003 |
GB |
0320754.5 |
Claims
1.-54. (canceled)
55. A shooting device for firing a projectile, the device having a
live mode wherein the device is able to fire a projectile and a
safe mode wherein the device is temporarily inhibited form being
able to fire a projectile, the device comprising signal receiving
means and means for switching the device between the live and safe
modes, in which the switching means and the signal receiving means
are configured to enable the device to be switched from the live
mode to the safe mode and from the safe mode to the live mode in
response to signals received by the signal receiving means from a
remote source.
56. A shooting device as claimed in claim 55, wherein the switching
means is connected to the signal receiving means and the switching
between live and safe modes takes place in response to control
signals outputted by the signal receiving means in response to the
signals from the remote source.
57. A shooting device as claimed in claim 55, wherein the signal
receiving means is adapted to receive radio frequency (RF)
signals.
58. A shooting device as claimed in claim 57, wherein the frequency
of the RF signals are 315 MHz; 433 MHz; or 816 MHz,
59. A shooting device as claimed in claim 57, wherein two or more
different coded signals on the same RF frequency are used.
60. A shooting device as claimed in claim 56, wherein the signal
receiving means comprises an aerial and a processing unit, the
processing unit operable to process signals received by the aerial
and thereby output suitable control signals to the switching
means.
61. A shooting device as claimed in claim 55 wherein: the switching
means comprises an engaging element and a locking bar, the engaging
element being spring biased and projecting toward the back of the
trigger such that it engages with the trigger if a user attempts to
pull the trigger and the locking bar being movable from a safe
position wherein it locks the engaging element in position and a
live position wherein it does not lock the engaging element in
position, such that when the locking bar is in the live position,
operation of the trigger causes the engaging element to engage the
trigger; sufficient force applied to the trigger overcomes the
spring bias of the engaging element and permits full operation of
the trigger, and when the locking bar is in the safe position, it
locks the engaging element in position and prevents full operation
of the trigger.
62. A shooting device as claimed in claim 61, wherein movement
means are provided to move the locking bar between said live and
said safe positions in response to signals outputted by said signal
receiving means.
63. A shooting device as claimed in claim 62, wherein the locking
bar is spring biased such that it is maintained in the safe
position unless a force is applied by the movement means.
64. A shooting device as claimed in claim 62, wherein the locking
bar is moved between said live and safe positions by a
solenoid.
65. A shooting device as claimed in claim 64, wherein the distal
end of the locking bar is connected to a metallic rod or similar,
said rod projecting into a solenoid such that when a current flows
in the solenoid, the rod is drawn further into the solenoid,
thereby moving the locking bar from the safe position to the live
position.
66. A shooting device as claimed in claim 61 wherein a power source
is incorporated into the shooting
67. A shooting device as claimed in claim 55, wherein the shooting
device is a paintball marker and the projectiles are
paintballs.
68. A shooting device as claimed in claim 67, wherein the shooting
device is a mechanical paintball marker.
69. A shooting device as claimed in claim 67, wherein the shooting
device is an electric paintball marker.
70. A system comprising: a shooting device for firing a projectile
and a remote control unit, said shooting device having a live mode
wherein the device is able to fire a projectile and a safe mode
wherein the device is temporarily inhibited from being able to fire
a projectile; said shooting device comprises control means
including means for receiving a signal from the remote control
unit; and said control means being configured to switch the device
between the live and safe modes on receipt by the signal receiving
means of a signal from the remote control unit wherein the remote
control unit is operable by someone other than the user of the
shooting device to cause the control unit to transmit a signal to
switch the shooting device between the live and safe modes.
71. A system as claimed in claim 70, said system comprises a
plurality of said shooting devices, the system being configured
such that all active shooting devices of the system within range of
the remote control unit are switched between live and safe modes on
transmission of a signal from the remote control unit.
72. A system as claimed in claim 70, said system comprising a
plurality of said shooting devices, in which the signal transmitted
by the remote control unit is addressed to selected individual
shooting devices in the system such that only the selected shooting
devices of the system within range are switched between live and
safe modes on transmission of a signal from the remote control
unit.
73. A method of remotely controlling the use of a shooting device,
said method comprising the steps of: providing a shooting device
having a live mode wherein it is able to fire a projectile and a
safe mode wherein it is temporarily inhibited from firing a
projectile; providing a control means within said shooting device
including means for receiving a signal from a remote control unit,
said control means being arranged to switch the device between live
and safe modes in response to receipt by the signal receiving means
of signals form the remote control unit; providing said remote
control unit with a transmitter, the remote control unit being
selectively operable to transmit a signal to switch the shooting
device either from the safe mode to the live mode or from the live
mode to the safe mode; and actuating the remote control unit to
cause the remote control unit to transmit a signal to switch said
at least one shooting device either form the safe mode to the live
mode to enable the shooting device to be used or from the live mode
to the safe mode to prevent the shooting device from being
used.
74. The method as recited in claim 73, wherein said method
comprises the step of enabling said remote control unit to be
operated by a person other than the user of the shooting device.
Description
[0001] The present invention relates to a shooting device
switchable between a live mode in which the shooting device may be
fired and a safe mode in which the shooting device may not be fired
and in particular to such a shooting device wherein the shooting
device switches between live and safe modes in response to remotely
generated signals.
[0002] In a paintball game, players use paintball markers,
typically styled to resemble firearms, to fire paint balls at their
opponents. The paint balls are designed to burst on impact and
thereby mark an opponent. A marked opponent is usually out of the
game, and has to leave the playing area.
[0003] If the correct clothing and safety equipment is used
including (full face and ear protection goggles), and people adhere
to safety rules which they are informed of before play, then
paintball is an enjoyable pastime with a very low risk of injury.
However, if players do not wear safety equipment as instructed,
remove safety equipment during play or ignore safely rules, then
there is a risk of serious injury if play continues. For instance
if a player were to remove their eye goggles during play and is
subsequently hit in the eye by a paint ball, they could quite
easily be blinded. In order to reduce this danger, present
paintball markers have manually actuated safety switches which
prevent them being fired when the switch is placed in the safe
position. Players are instructed to put these switches into the
"Safe" position immediately upon on hearing a signal ending the
game.
[0004] Often, when a game is ended or stopped for any reason, some
players may have a number of paintballs remaining and may for some
reason be it excitement, failure to hear the end of game signal or
otherwise, continue to shoot. This is the most dangerous part of
any paintball game, because whilst these players continue to fire
paint balls, other players may have removed their eye goggles
assuming the game had finished. Paintball game operators must
therefore either trust all their patrons to stop shooting
immediately at the end of a game, or they must provide marshals to
either personally check and actuate the manual safety switches on
each individual marker or confiscate player's markers as quickly as
possible at the end of a game.
[0005] It is therefore an object of the present invention to
provide a safer paintball marker.
[0006] According to the present invention there is provided a
shooting device for firing a projectile, having a live mode wherein
the device is able to fire a projectile and a safe mode wherein the
device is unable to fire a projectile, wherein the device is
switched between said live mode and said safe mode in response to
signals received by a signal receiving means from a remote
source.
[0007] In this manner, a paintball marker may be provided which can
be switched from live mode to safe mode remotely. This allows, for
instance, a paintball game operator or marshal to switch some or
all paintball markers in use in a game to safe mode instantaneously
when necessary, thereby reducing the possibility of injuries to
players if other players continue to fire paintballs after the end
of a game.
[0008] Preferably, the shooting device comprises a firing mechanism
for firing a projectile, a barrel along which the projectile is
fired, a handle provided for a user to hold the device and a
trigger which activates the firing mechanism. The shooting device
may additionally comprise a magazine adapted to store a number of
projectiles and may further comprise means for automatically
loading projectiles from the magazine into the firing
mechanism.
[0009] Preferably, the shooting device is a paintball marker and
the projectiles are paintballs, however the invention may
additionally be adapted to switch other firearms between live and
safe modes including but not limited to BB guns, shotguns, pistols
and other handguns, machine guns, rifles, blank firing replica
firearms, starter guns including starting pistols and similar, and
crossbows.
[0010] Preferably the switching between live and safe modes is
carried out by a switching means. Most preferably, the switching
means is connected to the signal receiving means and the switching
between live and safe modes takes place in response to control
signals output by the signal receiving means.
[0011] Preferably, the signal receiving means is adapted to receive
radio frequency (RF) signals. Particularly preferred RF frequencies
are 315 MHz for use in the USA and 433 MHz for use throughout
Europe. Other frequencies, for instance 816 MHz, may of course be
used if desired or necessary due to licensing requirements or
otherwise. In particular two or more different coded signals on the
same frequency may be used if two paintball games are to be
operated in close proximity to each other. Preferably the signal
receiving means comprises an aerial and a processing unit operable
to process signals received by the aerial and thereby output
suitable control signals to the switching means.
[0012] Preferably a manually activated safety switching means may
also be provided whereby the shooting device may be switched to
safe mode manually, as well as remotely.
[0013] Preferably the switching means comprises an engaging element
and a locking bar, the engaging element being spring biased and
projecting toward the back of the trigger such that it engages with
the trigger if a user attempts to pull the trigger and the locking
bar being movable from a safety position wherein it locks the
engaging element in position and a live position wherein it does
not lock the engaging element in position. When the locking bar is
in the live position, operation of the trigger causes the engaging
element to engage the trigger; but sufficient force applied to the
trigger will overcome the spring bias of the engaging element and
permit full operation of the trigger, thus allowing the marker to
be fired. When the locking bar is in the safe position, it locks
the engaging element in position and prevents full operation of the
trigger and thus prevents the marker from being fired.
[0014] In a preferred embodiment, the locking bar is moved by
pivoting about one end, between a safe position and a live
position: in the safe position, the locking bar extends
substantially parallel to and alongside the engaging element, the
distal end of the locking bar located such that it engages a
sidearm of the engaging element, if the trigger is pulled; in the
live position the locking bar is pivoted away from the engaging
element, and is unable to engage the sidearm of the engaging
element if the trigger is pulled. The movement of the locking bar
between said live and safe positions is preferably controlled by
signals output by said signal receiving means. Movement means are
preferably provided to move the locking bar in response to said
signals received by the signal receiving means. Preferably, the
locking bar is spring biased such that it is maintained in the safe
position unless a force is applied.
[0015] The locking bar may be moved between said live and safe
positions by any suitable means however particularly preferred
means of moving the locking bar are a solenoid, a servomotor, an
electro magnet, or a metal nanomuscle, wherein a nanomuscle is
comprised of a single piece or multiple layers of metal alloy
operable to contract when an electric current is passed
therethrough. A particularly preferred metal alloy for this purpose
is that sold under the registered trade mark "FLEXINOL".
[0016] In embodiments wherein the locking bar is moved by a
solenoid, preferably the distal end of the locking bar is connected
to a metallic rod or similar, said rod projecting into a solenoid
such that when a current flows in the solenoid, the rod is drawn
further into the solenoid, thereby moving the locking bar from the
safe position to the live position. As the locking bar is spring
biased, when no current flows in the solenoid, the locking bar
returns to the safe position. Alternatively, of course any other
suitable electromagnet may be used either to move a rod or other
metallic article connected to the locking bar, or to move the
locking bar itself directly.
[0017] In embodiments wherein the locking bar is moved by a
servo-motor, the servo-motor is connected to the distal end of the
locking bar by any suitable means such that the servo-motor is
operative to move the locking bar from the safe position to the
live position. As the locking bar is spring biased, when the
servo-motor is not operated, the locking bar returns to the safe
position.
[0018] In embodiments wherein the locking bar is moved by a
nanomuscle, the nanomuscle is preferably attached to the distal end
of the locking bar by any suitable means and contracts when a
current is passed therethrough, thus moving the locking bar from
the safe position to the live position. As the locking bar is
spring biased, when no current flows through the nanomuscle, the
locking bar returns to the safe position.
[0019] In each of the above cases the engaging element, the locking
bar and the movement means the locking bar are preferably located
in the handle of the shooting device. Preferably, the movement
means are located below the engaging element and locking bar within
the handle and are operable to move the distal end of the locking
bar from the safe position down in to the live position.
[0020] In further alternative embodiments, it is of course possible
to omit the locking bar and to use one or other of the movement
means described above to control the movement of the engaging
element directly.
[0021] Preferably, a power source is incorporated into the shooting
device in order to provide power for the operation of the signal
receiving means and the switching means. The power source is
preferably a battery and most preferably a rechargeable
battery.
[0022] Preferably, a visual indicator is provided which indicates
whether the shooting device is in live mode or safe mode. In a
preferred embodiment, the visual indicator is a tri-coloured light
emitting diode (LED) one colour of which is lit to indicate that
the shooting device is in live mode, another colour being lit to
indicate that the device is in safe mode. Preferably the live mode
is indicated by a green colour and the safe mode is indicated by a
red colour.
[0023] Alternatively and or additionally, other indications of the
mode of the shooting device may be provided. For instance a liquid
crystal display (LCD) may provide information on the current mode
of the device along with other information including not limited
to, current battery power, current game time and or game time
remaining, number of projectiles remaining or similar. In further
possible embodiments the device may emit an audible signal
indicating when the device switches between live mode and safe
mode. The audible signal may be a tone, a repeating tone, a tone
sequence, sampled speech or any other suitable audible signal.
[0024] Preferably, a control unit is provided operative to transmit
an RF signal to the shooting device from a remote location and thus
cause the shooting device to switch between live mode and safe
mode. Preferably, the control unit is a handset operable to switch
the mode of any shooting device within range of its signal. In
alternative embodiments however the handset maybe adapted such that
it addresses selected individual shooting devices and causes only
the selected shooting devices to switch between live mode and safe
mode.
[0025] It is envisaged that such control units may be provided to
enable those running paintball games or other persons supervising
the use of firearms to remotely switch a number of paint ball
markers or other firearms between live and safe modes. In
particular preferred embodiments, the control units will be
provided with at least two control buttons, the first button when
actuated, switching the shooting devices to live mode and the
second button when actuated switching the devices to safe mode.
Alternative embodiments of the control unit may have further
control buttons if desired.
[0026] In a particularly preferred embodiment of the invention, the
control unit has four control buttons and is used in conjunction
with paint ball markers adapted to emit a sampled speech signal
when switched between live mode and safe mode. In such an
embodiment: actuation of the first button switches markers to live
mode and causes the markers to emit an audible signal "game on" or
similar; actuation of the second button switches the markers to
safe mode and causes the marker to emit an audible signal "safety
situation" or similar; actuation of the third button switches
markers to live mode and causes the markers to emit an audible
signal "play on" or similar; and actuation of the fourth button
switches the markers to safe mode and causes the marker to emit an
audible signal "game over" or similar.
[0027] The particular details of any or all of the above
embodiments of the present invention may of course be adapted to
enable such remote mode switching to be fitted to a wide variety of
paintball markers and other shooting devices being of different
sizes and having different layouts.
[0028] The foregoing has in general been directed to providing a
mechanical paintball marker or shooting device which is remotely
switchable between a live mode and a safe mode, however the
invention may additionally be adapted to fit electric paintball
markers as described above. Alternatively, as electric markers are
fired by pulling a trigger to activate a solenoid to release the
firing mechanism, the signal receiving means may be directly
connected to this control signal and may be operative to control a
relay to enable or disable its operation.
[0029] In order that the invention be more clearly understood
embodiments of the invention will be described further herein, with
reference to the accompanying drawings in which:
[0030] FIG. 1a shows a paintball marker, switchable between a live
mode and a safe mode according to the present invention;
[0031] FIG. 1b is a more detailed view of the handle of the
paintball marker of FIG. 1a showing the means for receiving control
signals and consequently switching the paintball marker between
live and safe modes;
[0032] FIG. 2 shows a schematic block diagram of the means for
receiving control signals and consequently switching the paintball
marker between live and safe modes;
[0033] FIG. 3 shows a control unit for transmitting control signals
to switch the paintball marker of FIGS. 1 & 2 between live and
safe modes;
[0034] FIG. 4a shows the relative positioning of an engaging
element and locking bar used to switch the marker between live and
safe modes when the marker is in safe mode;
[0035] FIG. 4b shows the relative positions of the engaging element
and the locking bar during live mode; and
[0036] FIG. 5 shows four different means, which may be used to move
the locking bar.
[0037] Referring now to figures 1a and 1b, a paintball marker 10
according to the present invention is shown. The marker 10
comprises a barrel 11, through which paintballs may be fired by a
firing mechanism (not shown). A handle 12 is provided to allow a
user to comfortably grip the marker 10 and a trigger 13 is
provided, for activating the firing mechanism. A trigger guard 14
is also provided to help prevent accidental activation of the
firing mechanism. A hopper 15 is also provided for loading the
marker 10 with one or more paintballs.
[0038] The marker 10 is fitted with a switching means 20 operative
to switch the marker 10 between two modes, a live mode in which the
firing mechanism can be activated and a safe mode in which the
firing mechanism cannot be activated. Referring now to FIG. 4, the
switching means 20 comprises an engaging element 23 which projects
from the handle 12 towards the trigger 13 and is movable towards
and away from trigger 13, a locking bar 21 adapted to lock the
engaging element 23 in a particular position and movement means 22
for moving the locking bar 21. The engaging element 23 is capable
of sliding towards or away from the trigger 13 within a suitable
housing 29 provided in the handle 12. The engaging element 23 is
biased by a spring 25 such that if no external force is applied it
projects from the handle 12 by a sufficient distance that it
engages the trigger 13, if a user pulls the trigger 13. The locking
bar 21 is pivotable about one end and may be moved by the movement
means 22 from a safe position wherein it is located alongside the
engaging element 23 to a live position wherein the distal end 27 of
the locking bar 21 is pivoted away from the engaging element 23 in
response to a force applied by the movement means 22. A biasing
spring 26 is further provided which acts to retain the locking bar
21 in the safe position except when force is applied to the bar 21
by the movement means 22. The distal end 27 of the locking bar 21
is adapted to abut a sidearm 28 projecting from the engaging
element 23.
[0039] In safe mode the locking bar 21 is in the position shown in
FIG. 4a and thus if the trigger 13 is pulled, the locking bar 21
prevents the engaging element 23 sliding within the housing 29
thereby blocking the movement of the trigger 13 and preventing
activation of the firing mechanism. When the marker 10 is switched
to live mode however, the movement means 22 exerts a force on the
locking bar 21 causing it to pivot into the position shown in FIG.
4b, if the trigger 13 is pulled now, the engaging element 23 slides
within the housing 29 and spring 25 deforms allowing the firing
mechanism to be activated.
[0040] The movement means 22 may be provided by any suitable means
with four suitable embodiments shown in FIG. 5. In FIG. 5a, a
FLEXINOL nanomuscle 51 is connected to the locking bar 21, the
nanomuscle 51 contracting when an electric current is passed
therethrough, thereby providing the necessary force to move the
locking bar 21. In figure 5b, a one end of a metallic rod 52 is
connected to the locking bar 21, the other end of the rod 52
projecting into the core of a solenoid 53. When a current flows in
the solenoid 53, the rod 52 is drawn into the core of the solenoid
53 and thus provides the necessary force to move the locking bar 21
from the safe to the live position. Alternatively, as is shown in
figure 5d, any suitable metallic article 58 may be connected to the
locking bar 21 and be used in conjunction with an electromagnet 57
to provide the force necessary to move the locking bar 21. In FIG.
5c, the locking bar 21 is connected to one end of a rod 55 threaded
onto the drive shaft 56 of a servomotor 54. When a suitable current
is supplied to the servomotor 54 the drive shaft 56 rotates and
consequently moves the rod 55, thereby providing the necessary
force to move the locking bar 21.
[0041] In each of the above cases, current flowing in the movement
means 22 thus equates with live mode and no current flowing in the
movement means 22 equates with safe mode. In each of these cases,
once the current is switched off, the locking bar 21 returns to the
safe position under the influence of the biasing spring 26 This has
the advantage that if the current supply fails the switching means
20 defaults to safe mode.
[0042] The marker 10 is switched between live and safe modes
remotely by use of radio frequency (RF) signals. A signal receiving
means 40 comprising an RF aerial 41 and a processing unit 42 is
provided in the marker 10 to receive such signals. The processing
unit 42 processes the signals received from the aerial 41. As is
shown in FIG. 2, the processing means 42 is connected to the
movement means 22 and is adapted to control the supply of current
to the movement means 22 thereby controlling whether the marker 10
is in live or safe mode in response to the signals received. In
some embodiments, a manually actuated switch may additionally be
provided for switching the marker 10 between live and safe modes.
In these cases however the processing unit 42 may override the
manual switch if particular RF signals are received.
[0043] The processing unit 42 may in some embodiments be connected
to indication means 16, 17 to provide a visual or aural indication
of the mode the marker 10 is in or a visual or aural indication
that the marker 10 has switched from one mode to the other mode. In
particular, the visual indication may be provided by a tri-coloured
light emitting diode (LED) 17, the LED being coloured red to
indicate safe mode and green to indicate live mode. A loudspeaker
16 or other suitable audio signal generator may additionally or
alternatively be provided in the marker 10 to generate an audible
warning that the marker 10 has changed from one mode to another.
The audible warning may be a tone or tone sequence or in preferred
embodiments is a speech sample such as "marker live" or
similar.
[0044] A power source 18 is also provided in the marker 10 to power
the signal receiving means 40, indication means 16, 17 and the
movement means 22. Typically the power source 18 is a rechargeable
battery.
[0045] A paintball marker 10 of this type is suitable for improving
the safety of paintball games. Players may be each provided with a
marker 10 of this type and instructed in its use before proceeding
to the playing area. At this time each player's marker 10 will be
in safe mode. At a predetermined signal from a marshal play will
commence. Along with signaling the start of play, the marshal will
transmit an RF control signal switching all the markers 10 to live
mode. The players may then play as normal. At the end of the game
or if the game needs to be stopped for any other reason the marshal
can use a predetermined signal to stop the game and additionally
transmit an RF control signal to the markers 10 which switches all
of the markers 10 to safe mode. This prevents any players firing
when the game has ended or is paused for any reason.
[0046] Referring now to FIG. 3, a control unit 30 is shown which a
marshal may use to transmit control signals to one or more markers
10. The control unit 30 comprises an RF transmitting aerial 31,
control buttons 32-35, and additionally suitable transmitting,
processing, and control circuitry (not shown) is provided within
the control unit 30.
[0047] In a preferred embodiment, the marshal starts a game by use
of a bell, whistle, siren or other suitable signal to the players
and presses control button 32 which causes the control unit 30 to
transmit a control signal to each marker 10, switching all the
markers 10 to live mode. Each marker 10 may indicate this to the
player by playing a recorded speech sample of "game on" or similar,
and or turning the tri coloured LED 17 to green.
[0048] To end the game the marshal uses a prearranged end signal to
the players and presses control button 33 causing the control unit
30 to transmit a control signal switching each marker 10 to safe
mode. Each marker 10 may indicate this to the player by playing a
recorded speech sample of "game over" or similar, and or turning
the tri coloured LED 17 to red.
[0049] If during a game a safety or other incident occurs requiring
the game to be stopped immediately, the marshal can pause the game
using a prearranged signal to the players and pressing control
button 34 causing the control unit 30 to transmit a control signal
switching each marker 10 to safe mode. Each marker 10 may indicate
this to the player by playing a recorded speech sample of "safety
situation" or similar, and or turning the tri coloured LED 17 to
red. The markers 10 may continue to play the recorded speech sample
at regular intervals until the marshal has investigated the
incident and decided whether the game can safely be resumed or not.
If the game cannot be safely resumed the marshal ends the game as
described previously by using the prearranged signal and pressing
control button 33. If however the game may be safely resumed the
marshal indicates this by using a prearranged signal and pressing
control button 35 causing control unit 30 to transmit a control
signal to each marker 10, switching all the markers 10 to live
mode. Each marker 10 may indicate this to the player by playing a
recorded speech sample of "play on" or similar, and or turning the
tri coloured LED 17 to green.
[0050] It is of course possible to provide such a control unit 30
with control buttons 32 and 35 only if desired. Either this control
unit 30 or any similar control unit with more or less buttons may
be used, and markers that do not have indication means or only use
simple visual or tonal indication means if desired.
[0051] In other embodiments of the invention, the processing unit
42 in each marker 10 may be programmed with a unique identification
(code) number. This would allow a marshal to switch particular
markers 10 to safe mode individually if necessary.
[0052] In a further embodiment of the invention, safe areas are
provided near the paintball playing area for reloading markers 10,
resting, or waiting for particular games to finish etc. In such
safety areas a low power automatic RF transmitter may be provided,
typically at the center of the safety zone and having a range which
substantially covers the safety zone but no further. Such a
transmitter unit transmits a control signal at regular intervals
switching all markers 10 within its range to safe mode. The markers
10 may indicate this by playing a recorded speech sample "safety
area" or similar. Typically when the marker 10 passes through a
predetermined area leading back to the playing area the marker 10
may be allowed to revert to live mode again and indicate this by
playing a recorded speech sample "game on" or similar.
[0053] The above described technology may additionally be used on
firing ranges. A control unit 30 can be used by a firing range
superintendent to activate or make safe any firearms in use on the
range as the situation demands. A transmitter unit may also be
provided by an exit of the firing range to switch all firearms
leaving the range to automatically switch to safe mode.
[0054] It is of course to be understood that the invention is not
intended to be restricted to the details of the above embodiment
which is described by way of example only. In particular it should
be understood that the invention has been described mainly in
relation to paintball markers but the invention may of course be
adapted to other types of firearm.
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