War games land mine

Information

  • Patent Grant
  • 6553912
  • Patent Number
    6,553,912
  • Date Filed
    Monday, April 9, 2001
    23 years ago
  • Date Issued
    Tuesday, April 29, 2003
    21 years ago
Abstract
A war games land mine includes a fluid supply mechanism, a housing and a sealing device. The fluid supply mechanism is configured for containing and selectively releasing therefrom a pressurized fluid. The housing has an interior surface, a first orifice and a second orifice, the first orifice of the housing being fluidly coupled with the fluid supply mechanism. The sealing device is movably mounted within the housing, the sealing device having a first side and a second side. The first side and the interior surface of the housing define a first chamber therebetween, the first chamber being fluidly coupled with the first orifice. The second side and the interior surface defining a second chamber therebetween, the second chamber being fluidly coupled with the second orifice and configured for being substantially filled with a marking agent. The sealing device is configured for being moved within the housing upon release of the pressurized fluid from the fluid supply mechanism to thereby eject the marking agent through the second orifice.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a war games land mine, and, more particularly, to a war games land mine which uses the release of a gas under pressure to cause the discharge of a marking agent.




2. Description of the Related Art




War games land mines are currently available for use in simulated war games. Such war games land mines typically incorporate some form of a marking agent such as paint or water. Several of these war games land mines generate the force needed to disperse the marking agent by piercing of a CO


2


cartridge, with the CO


2


directly impacting upon the marking agent. Such a system presents a problem in that the marking agent is not fluidly separated from the actuator/piercing mechanism, allowing the marking agent to potentially contaminate this mechanism and other areas of the land mine.




SUMMARY OF THE INVENTION




The present invention relates to a war games land mine which uses a piston within a cylinder arrangement to discharge the marking agent through a discharge nozzle and to thereby fluidly separate the marking agent from the actuator/piercing mechanism and prevent contamination of other portions of the war games land mine.




The invention comprises, in one form thereof, a war games land mine including a fluid supply mechanism, a housing and a sealing device. The fluid supply mechanism is configured for containing and selectively releasing therefrom a pressurized fluid. The housing has an interior surface, a first orifice and a second orifice, the first orifice of the housing being fluidly coupled with the fluid supply mechanism. The sealing device is movably mounted within the housing, the sealing device having a first side and a second side. The first side and the interior surface of the housing define a first chamber therebetween, the first chamber being fluidly coupled with the first orifice. The second side and the interior surface defining a second chamber therebetween, the second chamber being fluidly coupled with the second orifice and configured for being substantially filled with a marking agent. The sealing device is configured for being moved within the housing upon release of the pressurized fluid from the fluid supply mechanism to thereby eject the marking agent through the second orifice.




An advantage of the present invention is that the marking agent is maintained fluidly separate from the gas-source module, including the trigger assembly, preventing the contamination thereof with the marking agent.




A further advantage of the present invention is that the impact of pressurized fluid upon the piston promotes steady and even dispersal of the marking agent through the nozzle.




Another advantage of the present invention is that both refillable and disposable marking agent containment systems are available for use therewith.




An additional advantage of the present invention is that the gas-source module can be adapted to use various sources of pressurized gas, including gas cartridges, large bottles of gas and air compression systems, or other pressurized fluid.




A yet another advantage is that any of a variety of marking agent release activators may be used, including, but not necessarily limited to, a trip wire, a motion sensor, a proximity sensor, a radio frequency receiver/transceiver, a timer and an electronic controller.




A further advantage is that the device can be provided with a manual reset device for each of the piercer driver/hammer and the piston.




A yet further advantage is that any of a variety of marking agents may be used including, but not necessarily limited to, paint and water.











BRIEF DESCRIPTION OF THE DRAWINGS




The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become more apparent and the invention will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:





FIG. 1

is an isometric view of a first embodiment of a war games land mine of the present invention;





FIG. 2

is a cut-away view of a war games land mine of

FIG. 1

of the present invention in a loaded or unfired position;





FIG. 3

is a cut-away view of a first embodiment of a war games land mine of the present invention in an as-fired position;





FIG. 4

is a sectional view taken along line


4





4


in

FIG. 2

, showing the trigger catch in the unfired position;





FIG. 5

is a sectional view taken along line


5





5


in

FIG. 3

, showing the trigger catch in the fired position;





FIG. 6

is a cut-away view taken along line


6





6


in

FIG. 1

;





FIG. 7

is an exploded view of an alternate embodiment of a marker-source module of the present invention, featuring a disposable marker agent cartridge;





FIG. 8

is a cross-sectional view of the disposable marker agent cartridge of

FIG. 7

;





FIG. 9

is an end view of the disposable marker agent cartridge of

FIG. 7

;





FIG. 10

is a sectional view taken along line


10





10


in

FIG. 7

;





FIG. 11

is a cut-away view of an alternate embodiment of a war games land mine in an as-fired condition; and





FIG. 12

is a cut-away end view of yet another alternate embodiment of a war games land mine, as viewed toward the manifold lid.











Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate at least one preferred embodiment of the invention, in one form, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.




DETAILED DESCRIPTION OF THE INVENTION




Referring now to the drawings, and more particularly to

FIGS. 1-3

, there is shown a war games land mine


20


which generally includes a gas-release module


22


and a marker-source module


24


. Gas-release module


22


further includes a gas source


28


and a trigger assembly


30


. Marker-source module


24


further includes a marker-source module housing


32


, a delivery nozzle


34


and a piston


36


.




Gas source


28


is a source of a gas under pressure. Gas source


28


is preferably a gas cartridge


38


filled with carbon dioxide or air. Gas cartridge


38


has a neck


40


with a sealed opening


42


at the end thereof Alternatively, gas source


28


may be a compressed gas source (not shown) such as a larger bottle or compressed air system using a valve to selectively release the gas therein. The primary function of gas source


28


is to provide a fluid under pressure that can be selectively released and eventually impinge upon piston


36


. Consequently, it is contemplated that any pressurized fluid, such as a pressurized liquid, could be provided to fulfill this function.




Gas-release module housing


26


includes housing elements for both gas source


28


and trigger assembly


30


. Specifically, gas-release module housing


26


includes gas cartridge receiver


44


into which gas cartridge


38


is inserted. Neck


40


of gas cartridge


38


is positioned within cartridge seat


46


. Sealed opening


42


of neck


40


abuts against seal


48


, seal


48


being composed of polytetraflouroethylene (PTFE). Cartridge seat


46


is sealingly held in contact with gas cartridge receiver


44


by an O-ring


50


. O-rings


50


are used throughout war games land mine


20


for purposes of sealingly retaining fluid materials within war games land mine


20


and/or holding contacting parts together, a portion of such O-rings


50


being labeled. Gas cartridge


38


is releasably held within gas cartridge receiver


44


by a cartridge cap


52


. Preferably, cartridge cap


52


may be screwed into gas cartridge receiver


44


.




Gas-release module housing


26


further includes a main trigger housing


54


, a manifold


56


and a manifold lid


58


for collectively containing trigger assembly


30


. Main trigger housing


54


, manifold


56


and manifold lid


58


together define a first gas channel


60


for channeling gas from gas source


28


toward marker-source module


24


. Manifold lid


58


is attached to manifold


56


by manifold mounting bolts


62


(one of which is labeled). Main trigger housing


54


is sealingly mounted between gas cartridge receiver


44


and manifold


56


.




Trigger assembly


30


includes, in the embodiment shown in

FIGS. 1-3

, a piercer


62


and a hammer


64


, which acts as a piercer driver. Piercer


62


is mounted in piercer housing


66


, piercer housing


66


being positioned within main trigger housing


54


. Piercer


62


has a sharp end


68


and a blunt end


70


. Sharp end


68


is located adjacent sealed opening


42


of neck


40


and is configured for piercing therethrough, such piercing thereby initiating a gas flow


72


(shown schematically, in

FIG. 3

) from gas cartridge


38


. Sharp end


68


of piercer


62


is biased away from sealed opening


42


by a spring


74


.




Hammer


64


is slidably positioned within hammer sleeve


76


, manifold


56


and manifold lid


58


. Specifically, hammer head


78


is slidable along hammer sleeve


76


, and hammer stem


80


is slidable within manifold


56


, through stem hole


81


, and manifold lid


58


. Hammer spring


82


, which is positioned between hammer head


78


and manifold


56


, provides the momentum necessary, when released, to drive hammer head


78


at blunt end


70


of piercer


62


and to thereby drive sharp end


68


thereof into sealed opening


42


of gas cartridge neck


40


, allowing gas flow


72


to emanate from gas cartridge


38


.




Hammer stem


80


has a notch


84


therein for receiving trigger catch


86


. Hammer stem


80


is also provided with a pull ring


88


for pulling hammer


64


into a reset position in which trigger catch


86


engages with notch


84


. Hammer stem


80


is further provided with a safety clip hole


90


for receiving safety clip


92


therein (shown assembled in

FIG. 1

) to prevent unwanted firing of hammer


64


against piercer


62


. Safety clip


92


is preferably tethered (not shown) to war games land mine


20


to prevent the loss of safety clip


92


when not attached to hammer stem


80


.




Trigger catch


86


and the mechanisms related to its movement are best seen in

FIGS. 4 and 5

, which are sectional views of

FIGS. 2 and 3

, respectively. Trigger catch


86


, as shown in

FIG. 4

, is held against notch


84


of hammer stem


80


by the coaction of tension spring


94


and solenoid trigger


96


. Steel pins


98


are used to aid in the positioning of each of trigger catch


86


, tension spring


94


and solenoid trigger


96


. Solenoid trigger


96


is coupled with a solenoid


100


which acts as a biasing device therefor. Solenoid


100


is positioned within an electronics control module (ECM)


102


, ECM


102


being mounted below gas-release module


22


and marker-source module


24


.




Trigger catch


86


may be released from notch


84


, thereby allowing hammer


64


to be activated, either mechanically by use of a trip wire


104


(

FIGS. 1 and 4

) or by a reverse operation of solenoid


100


, as indicated schematically by arrow


106


in

FIG. 5. A

reverse operation of solenoid


100


may be initiated by a motion sensor, a proximity sensor, a radio frequency transmitter/receiver and/or a timer incorporated in and/or associated circuit board


108


(

FIG. 6

) of ECM


102


. Solenoid


100


and circuit board


108


are preferably powered by a pair of nine volt batteries


110


. Solenoid


100


, circuit board


108


and nine volt batteries


110


are each shown in phantom in FIG.


6


.




Marker-source module housing


26


is defined by primary cylinder


112


, manifold


56


and manifold lid


58


, the three of which together define a second gas channel


114


. First gas channel


60


and second gas channel


114


come in direct fluid communication with one another in a region between manifold


56


and manifold lid


58


, thereby allowing gas flow


72


to proceed from gas-release module


22


into marker-source module


24


. First end


116


, having a first orifice


117


, of primary cylinder


112


is preferably threadingly connected to manifold


56


. Primary cylinder


112


essentially functions as a housing and a container so it is contemplated that other appropriate housing configurations could be employed.




Delivery nozzle


34


includes a cap


118


and a spray release mechanism


122


. Cap


118


is connectable to second end


120


, having a second orifice


121


, of primary cylinder


112


, preferably by screw threading, as shown schematically in FIG.


6


. Spray release mechanism


122


includes a spray deflector


124


and a deflector biasing spring


126


. Spray deflector


124


may be designed to create one or more streams or sprays at angles ranging from 1 to 360°. Deflector biasing spring


126


tends to bias spray deflector


124


into a closed position within delivery nozzle


34


. The presence of a force F is needed to overcome that bias and to cause spray release mechanism


122


to activate and thereby permit release of a marking agent


128


. Alternatively, marking agent


128


could be directly ejected out of second orifice


121


of second end


120


, second orifice


121


having a diameter equal to or less than that of second end


120


.




Marking agent


128


is composed of at least one of a marking fluid and a marking slurry. Marking agent


128


is preferably water or a washable paint. Piston


36


has a first piston side


130


and a second piston side


132


. Marking agent


128


is contained within primary cylinder


112


in a volume or marker chamber


131


defined at one end by cap


118


and at another end by second piston side


132


of piston


36


.




First piston side


130


is in fluid communication with second gas channel


114


and is thereby in the pathway of gas flow


72


upon release of gas from gas cartridge


38


. Primary cylinder


112


and first piston side


130


together form a gas chamber


133


for receiving gas flow


72


. Impingement of gas flow


72


upon first piston side


130


causes piston


36


to move towards delivery nozzle


34


, ultimately creating a sufficient force F upon spray deflector


124


to overcome deflector biasing spring


126


, resulting in the outward release of marking agent


128


through spray release mechanism


122


. The provision of O-rings


50


within piston


36


helps to ensure that no marking agent


128


leaks back into second gas channel


114


. Conversely, O-rings


50


in piston


36


also help to minimize, if not prevent, unwanted leakage of gas flow


72


around piston


36


, thereby helping to maximize the amount of force with which gas flow


72


is able to impact first piston side


130


.




Marker-source module


24


may be further provided with a reset rod


134


for resetting piston


36


from its “as fired” position


136


, as shown in

FIG. 3

, to its “loaded” position


138


, as shown in FIG.


2


. Reset rod


134


is preferably provided on its exterior end


140


with a knob


142


to aid in pulling piston


36


to its “loaded” or reset position


138


. Interior end


144


of reset rod


134


has a clip


146


mounted thereto to allow reset rod


134


to engage with second piston side


132


during reset of piston


36


. Upon resetting, cap


118


of delivery nozzle


34


can be removed from primary cylinder


112


to allow refilling thereof with marking agent


128


and then reaffixed to primary cylinder


112


.




An alternative marker-source module housing


150


is shown in

FIGS. 7-10

. Marker-source module


150


includes a disposable marker cartridge


152


, a primary cylinder


154


, an adapter


156


, a retainer bolt


158


and a delivery nozzle


160


. Primary cylinder


154


and delivery nozzle


160


are similar in structure and function to primary cylinder


112


and delivery nozzle


34


, respectively, of the first embodiment and thus are not discussed in great detail with regard to this embodiment.




Disposable marker cartridge


152


, as best seen in

FIG. 8

, includes a disposable cylinder


162


, a disposable piston


164


and a pull-tab seal


166


, with a marking agent


168


therein. Disposable cylinder


162


is sized so as to fit within and against primary cylinder


154


. Disposable cylinder


162


is provided with an open end


170


into which disposable piston


164


is sealingly and slidably received. Delivery end


172


of disposable cylinder


162


has a delivery hole


174


therein, as best shown in

FIG. 9

, through which marking agent


168


may reach delivery nozzle


160


. Delivery hole


174


is covered by pull-tab seal


166


during storage and delivery, with pull-tab seal


166


being removed prior to insertion of disposable marker cartridge


152


into marker-source module


150


.




Disposable piston


164


has a hollow cup shape. Disposable piston


164


is provided with at least one rounded ridge


176


which permits a relatively small portion of the surface area of disposable piston


164


to actually be in contact with disposable cylinder


162


while still achieving a sufficient seal therebetween.




Adaptor


156


permits various size disposable cylinders


162


to be sealingly connected with manifold


56


. Adaptor taper


178


accommodates such size variation. Adapter


156


is provided with a gas-flow hole


180


to permit gas to flow from manifold


56


into disposable cylinder


162


and toward disposable piston


164


. Adaptor


156


is further provided with a tap seat


182


for receiving retainer bolt


158


via which adaptor


156


can be releasably fixed to and in proper alignment with manifold


56


.




ECM


102


may allow for a variety of electronic features to be added on or included therein. An electronic display for displaying information or a buzzer for audibilizing information may be provided. A timer function would permit the automatic firing of the unit. A radio frequency transmitter may generate more than one code for firing of more than one land mine. A transceiver may also be adopted for sending and receiving RF signals. The transceiver could be further used to allow communication between players on the field as well as being used as a firing device. A servo-motor can substitute for the solenoid for activating the trigger. The servo-motor, having positional accuracy, may also activate another device other than the trigger.




The electronic housing (not labelled) of ECM


102


would preferably be molded of plastic. The molded housing may then incorporate a power switch for more economical manufacture. External contacts may be provided for another device or for a device-to-device physical connection.




In another alternate embodiment, war games land mine


190


(

FIG. 11

) is shown in an as-fired condition. War games land mine


190


has a gas-release module


192


and a marker-source module


194


, the latter including a nozzle


195


. Gas-release module


192


is equipped and functions similar to gas-release module


22


and is not described in further detail with respect to this embodiment. Further, marker-source module


194


is equipped and functions similar to marker-source module


24


except for those details expressly described herewith. Specifically, piston


196


has piston hole


198


with an O-ring


199


positioned therein. Reset rod


200


extends through piston hole


198


during a firing and reset sequence. Reset rod


200


has an exterior end


202


and an interior end


204


, interior end


204


having an associated retaining clip


205


(retaining clip


205


being configured similar to clip


146


). Reset rod


200


has a primary diameter


206


beginning at exterior end


202


and extending to, but not including, interior end


204


. At least a portion of interior end


204


instead has a secondary diameter


208


which is slightly less than primary diameter


206


. Primary diameter


206


is chosen so as to result in an essentially gas-tight seal with piston hole


198


and O-ring


199


yet to allow relatively easy movement of piston


196


upon reset rod


200


. However, at interior end


204


, a gas-tight seal between piston hole


198


, O-ring


199


and reset rod


200


does not exist due to the gap therebetween resulting from secondary diameter


208


being less than primary diameter


206


. Consequently, at the end of a firing cycle, i.e. when piston


196


reaches interior end


204


of reset rod


200


, gas used for the firing sequence can escape beyond piston


199


and outward through nozzle


195


.




In yet a further embodiment, war games land mine


210


(

FIG. 12

) is shown from a cut-away end view along a plane between a manifold (not shown) and manifold lid


212


. War games land mine


210


includes both a hammer stem


214


and a reset or piston rod


216


, with hammer stem


214


also having a corresponding hammer notch


218


therein. Hammer stem


214


and hammer notch


218


are structured and function similar to hammer stem


80


and notch


84


and, thus, are not discussed in further detail here. However, reset rod


216


is provided with a reset notch


220


and has a reset rod stabilizer


222


associated therewith. Reset rod stabilizer


222


is pivotally positioned upon pin


224


(upon which pin


224


a solenoid trigger (not shown in this embodiment) is also positioned and pivots about). Reset rod stabilizer


222


has a stabilizer set position


226


and a stabilizer release position


228


(shown in phantom in FIG.


12


). Reset rod stabilizer


222


has a stabilizer spring


230


associated therewith, and when in stabilizer set position


226


, reset rod stabilizer


222


is biased into reset notch


220


by stabilizer spring


230


. Reset rod stabilizer


222


is kept in stabilizer set position


226


during the firing sequence to help restrict the movement of and thereby stabilize the positioning of reset rod


216


through the turbulence created by the firing sequence.




War games land mine


20


is operated in the following manner. Trigger assembly


30


is activated in order to release the gas from gas source


28


and into first gas channel


60


. The gas thereby flows from first gas channel


60


into second gas channel


114


. Upon flowing into second gas channel


114


, the gas impacts upon first piston side


130


of piston


36


. Piston


36


is moved as a result of the impaction of the gas upon first piston side


130


, thereby actuating second piston side


132


against marking agent


128


. Second piston side


132


impacts against marking agent


128


with a sufficient force to cause at least a substantial portion of marking agent


128


to thereby be expelled through delivery nozzle


34


, causing a spray or stream of marking agent


128


to emanate therefrom.




Various other alternative features (not shown) are possible. Nozzle


34


may be a single-hole nozzle having a servo-controlled axial latitude and longitude, operable from an RF transmitter. Additionally, the orifice size and/or flow of fluid from nozzle


34


may be regulated manually or by servo. The flow is restricted by varying how much of the flow passage is blocked by a movable gate. With respect to trigger assembly


30


, solenoid


100


itself may be used to provide the energy for piercing gas cartridge


38


by axially aligning the two, using a solenoid of the push-type variety. Furthermore, gas cartridge receiver


44


, cartridge seat


46


and main trigger housing


54


could be combined into one unitary part as so could piercer housing


66


and hammer sleeve


76


. Separate parts were used in the first embodiment due to ease of manufacture. Reset rod


134


, although easing piston reset, is not required therefor. Reset rod


134


is also not necessary when using disposable marker cartridge


152


.




Instead of gas cartridge


38


as the gas source, a compressed gas system, such as a larger bottle or a compressed air system, incorporating a valve release, could be used. In such an instance, a valve release mechanism would be used as part of the trigger assembly instead of a piercer assembly. A yet further alternative would be to replace gas source


28


with another pressurized fluid source.




In general, many components of this product would ideally be made of plastic, aluminum or other material that is inexpensive; readily formed and/or machined; and both mechanically and chemically durable. Additionally, such components may be made by any of a variety of appropriate manufacturing methods.




While this invention has been described as having a preferred design, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains and which fall within the limits of the appended claims.



Claims
  • 1. A war games land mine, comprising:a gas-release module, including: a gas-release module housing, said gas-release module housing defining a first gas-flow pathway therein; a gas source mounted within said gas-release module housing and having a gas under pressure therein, said first gas-flow pathway extending to said gas source; and a trigger assembly positioned in association with said gas source and configured for releasing said gas from said gas source and into said first gas-flow pathway; and a marker-source module positioned in association with said gas-release module, said marker-source module including: a marker-source module housing defining a second gas-flow pathway therein, said second gas-flow pathway being in fluid communication with said first gas-flow pathway and thereby being configured to receive said gas released from said gas source, said marker-source housing including a primary container, said primary container configured for retaining at least one marking agent therein, said primary container having a delivery nozzle fluidly coupled therewith proximate a distal end thereof; a piston movably mounted in said primary container, said piston defining one end of a containment region for the at least one marking agent within said primary container, said piston having a first piston side and a second piston side, said second piston side being configured to be positioned adjacent the at least one marking agent and to be actuatable thereagainst, said first piston side being in fluid communication with said second gas-flow pathway, said first piston side thereby being configured to be impacted by said gas released from said gas source in a manner sufficient to cause at least a substantial portion of the at least one marking agent to be expelled through said delivery nozzle; and a plurality of o-rings between said piston and said primary container, said plurality of o-rings encompassing said piston, said plurality of o-rings engaging both said piston and said primary container.
  • 2. The war games land mine of claim 1, wherein said gas source is comprised of a gas cartridge containing said gas therein, said gas cartridge having a first cartridge end, said trigger assembly including a piercer and a piercer driver, said piercer having a sharp end positioned adjacent said first cartridge end and an opposing blunt end, said piercer driver configured for impacting said blunt end of said piercer and for thereby propelling said sharp end of said piercer into said first cartridge end to create a hole therein to release said gas from within said gas cartridge.
  • 3. The war games land mine of claim 2, wherein said gas-release module housing has a first cartridge end seat and a piercer driver housing positioned therein, a piercer housing being located between said first cartridge end seat and said piercer driver housing, said first cartridge end being mounted in said first cartridge end seat, said piercer being slidably movable toward and away from said first cartridge end within said piercer housing, said piercer driver being drivingly movable toward said piercer driver housing.
  • 4. The war games land mine of claim 3, wherein said piercer driver includes a driver spring configured for propelling said piercer driver toward said piercer, said piercer driver further including a driver spring release mechanism configured for selectively permitting said driver spring to expand and thereby propel said piercer driver toward said piercer.
  • 5. The war games land mine of claim 4, wherein said driver release mechanism has at least one release activator associated therewith for permitting said driver spring to expand, each release activator being one of a trip wire, a motion sensor, a proximity sensor, a radio frequency transmitter, a timer and an electronic controller.
  • 6. The war games land mine of claim 5, wherein said piercer driver is further configured to be pulled in order to compress said driver spring and configured for coacting with said driver release mechanism to hold said driver spring under compression.
  • 7. The war games land mine of claim 5, wherein said driver release mechanism is mechanically coupled with a solenoid, said solenoid biasing said driver release mechanism toward said piercer driver, said piercer driver having a notch therein into which said driver release mechanism is configured to be biased to thereby hold said driver spring under compression.
  • 8. The war games land mine of claim 1, further comprising an electronics control module mounted adjacent to said gas-release module and to said marker-source module, said electronics control module being configured for controlling at least one of said trigger assembly and said delivery nozzle.
  • 9. The war games land mine of claim 1, wherein each at least one marking agent is one of water and paint.
  • 10. A war games land mine, comprising:a gas-release module, including: a gas-release module housing, said gas-release module housing defining a first gas-flow pathway therein; a gas source mounted within said gas-release module housing and having a gas under pressure therein, said first gas-flow pathway extending to said gas source; and a trigger assembly positioned in association with said gas source and configured for releasing said gas from said gas source and into said first gas-flow pathway; and a marker-source module positioned in association with said gas-release module, said marker-source module including: a marker-source module housing defining a second gas-flow pathway therein, said second gas-flow pathway being in fluid communication with said first gas-flow pathway and thereby being configured to receive said gas released from said gas source, said marker-source housing including a primary container, said primary container configured for retaining at least one marking agent therein, said primary container having a delivery nozzle fluidly coupled therewith proximate a distal end thereof; and a piston movably mounted in said primary container, said piston defining one end of a containment region for the at least one marking agent within said primary container, said piston having a first piston side and a second piston side, said second piston side being configured to be positioned adjacent the at least one marking agent and to be actuatable thereagainst, said first piston side being in fluid communication with said second gas-flow pathway, said first piston side thereby being configured to be impacted by said gas released from said gas source in a manner sufficient to cause at least a substantial portion of the at least one marking agent to be expelled through said delivery nozzle; wherein said delivery nozzle is comprised of a cap, said cap being releasably attached to said distal end of said primary container, said cap having a delivery opening therein, said delivery opening having a spring-loaded deflector movably mounted therein, said spring-loaded deflector being biased into said delivery opening for restricting flow therefrom, said spring-loaded deflector being configured for releasing at least one of a spray and a stream of the at least one marking agent upon actuation of said second piston side against the at least one marking agent.
  • 11. A war games land mine, comprising:a gas-release module, including: a gas-release module housing, said gas-release module housing defining a first gas-flow pathway therein; a gas source mounted within said gas-release module housing and having a gas under pressure therein, said first gas-flow pathway extending to said gas source; and a trigger assembly positioned in association with said gas source and configured for releasing said gas from said gas source and into said first gas-flow pathway; and a marker-source module positioned in association with said gas-release module, said marker-source module including: a marker-source module housing defining a second gas-flow pathway therein, said second gas-flow pathway being in fluid communication with said first gas-flow pathway and thereby being configured to receive said gas released from said gas source, said marker-source housing including a primary container, said primary container configured for retaining at least one marking agent therein, said primary container having a delivery nozzle fluidly coupled therewith proximate a distal end thereof; and a piston movably mounted in said primary container, said piston defining one end of a containment region for the at least one marking agent within said primary container, said piston having a first piston side and a second piston side, said second piston side being configured to be positioned adjacent the at least one marking agent and to be actuatable thereagainst, said first piston side being in fluid communication with said second gas-flow pathway, said first piston side thereby being configured to be impacted by said gas released from said gas source in a manner sufficient to cause at least a substantial portion of the at least one marking agent to be expelled through said delivery nozzle; wherein said marker-source module housing has an end wall and has a piston rod movably mounted therein, said piston rod extending inside said marker-source module housing and through said piston, said piston being slidably mounted thereupon, said piston rod being configured for moving said piston to a reset position from an as-fired position.
  • 12. The war games land mine of claim 11, wherein said piston rod has an exterior rod end and an interior rod end, said interior rod end extending inside said marker-source module housing and through said piston, said piston rod having a primary rod diameter beginning at said exterior rod end and extending up to about said interior rod end and having a secondary rod diameter, said secondary rod diameter being smaller than said primary rod diameter.
  • 13. The war games land mine of claim 11, wherein said piston rod has a piston rod stabilizer associated therewith, said piston rod stabilizer being configured for being biased against said piston rod.
  • 14. A method of discharging a war games land mine, comprising:providing a gas-release module, including: a gas-release module housing, said gas-release module housing defining a first gas-flow pathway therein; a gas source mounted within said gas-release module housing and having a compressed gas therein, said first gas-flow pathway extending to said gas source; and a trigger assembly positioned adjacent said gas source, said trigger mechanism being configured for releasing said gas from under compression within said gas source and into said first gas-flow pathway; and providing a marker-source module mounted adjacent to said gas-release module, said marker-source module including: a marker-source module housing defining a second gas-flow pathway therein, said second gas-flow pathway being in fluid communication with said first gas-flow pathway, said marker-source housing including a primary container, said primary container having at least one marking agent therein, said primary container having a delivery nozzle fluidly coupled therewith proximate a distal end thereof; a piston movably mounted in said primary container, said piston defining one end of a containment region for the at least one marking agent within said primary container, said piston having a first piston side and a second piston side, said first piston side being positioned adjacent the at least one marking agent and being actuatable thereagainst, said second piston side being in fluid communication with said second flow pathway; and a plurality of o-rings between said piston and said primary container, said plurality of o-rings encompassing said piston, said plurality of o-rings engaging both said piston and said primary container; activating said trigger mechanism in order to release said gas from said gas source and into said first gas-flow pathway, said gas flowing from said first gas-flow pathway into said second gas-flow pathway, said gas impacting upon said said second piston side; and moving said piston via said impacting of said gas upon said second piston side, said first piston side thereby being actuated against the at least one marking agent with a sufficient force to cause at least a substantial portion of the at least one marking agent to be expelled through said delivery nozzle.
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Number Date Country
2642160 Jul 1990 FR