US20080070476A1 - Pneumatic blood-hit effect - Google Patents
Pneumatic blood-hit effect Download PDFInfo
- Publication number
- US20080070476A1 US20080070476A1 US11/857,543 US85754307A US2008070476A1 US 20080070476 A1 US20080070476 A1 US 20080070476A1 US 85754307 A US85754307 A US 85754307A US 2008070476 A1 US2008070476 A1 US 2008070476A1
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- Prior art keywords
- membrane
- recited
- fitting
- hose
- valve
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
- F41B9/0003—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid
- F41B9/0031—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the liquid being pressurised at the moment of ejection
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
- A63J7/00—Auxiliary apparatus for artistes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
- F41B9/0078—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the gun housing, e.g. its shape or concealment
- F41B9/0084—Concealed gun housings, e.g. concealed nozzles in a garment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J5/00—Target indicating systems; Target-hit or score detecting systems
- F41J5/14—Apparatus for signalling hits or scores to the shooter, e.g. manually operated, or for communication between target and shooter; Apparatus for recording hits or scores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J5/00—Target indicating systems; Target-hit or score detecting systems
- F41J5/24—Targets producing a particular effect when hit, e.g. detonation of pyrotechnic charge, bell ring, photograph
Definitions
- the present invention generally relates to special effects technology and, more particularly, to a system and method where for a blood-hit effect without pyrotechnics.
- the squib in reality is an electrically ignited detonator that an actor wears on their person.
- the squib is backed by a steel plate to protect the actor from harm when the charge is detonated.
- a pre-manufactured plastic bag of stage blood is fastened.
- the whole setup is wire harnessed with a control cable connected to a pyrotechnic controller. The actor then places his costume over the blood bag/detonator/steel plate setup.
- a state licensed pyrotechnic operator is required to activate the detonator from the controller and the detonators explosive powers will burst through the blood bag and rupture the pre-scored/distressed area of the costume where this effect will reveal a simulation of a bullet hole with blood being ejected.
- the conventional blood-hit effects may be dangerous, and require bulky components, such as a steel plate. This limits the scenarios in which the effect can be used since the plate and the equipment is cumbersome.
- a pyrotechnic specialist is needed by law in many jurisdictions to activate the charge. This adds to the complexity of usage and the overall expense.
- a blood-hit effect system includes a pressure vessel and a solenoid configured to fit on a person.
- a hose connects to the solenoid and is filled with a fluid.
- a radio control device activates the solenoid to open to release air from the pressure vessel such that the fluid in the line is ejected from a nozzle located on the body of the person to provide the effect of being shot at the location of the nozzle.
- the nozzle may be located on the person at an arbitrary location.
- a vest is provided with a plurality of predefined holes where the nozzle is installed.
- Multiple nozzles may be employed in communication with the same or different pressure vessels and solenoids. The effect hits may be timed to simulate multiple shots at different locations or at different times.
- An apparatus for a blood-hit effect includes a pressurized reservoir, a valve, and a hose having a first end portion coupled to the reservoir through the valve.
- the hose is configured to store an ejection fluid and the hose includes a second end portion.
- a membrane is configured to cover a second end portion of the hose.
- the membrane is disposed at a location on a subject where an effect is to occur.
- the membrane is configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane.
- An apparatus for a blood-hit effect includes a pressurized reservoir having a controlled valve for releasing pressure in accordance with a control event, a hose having a first end portion coupled to the reservoir through the valve, the hose configured to store an ejection fluid, the hose having a second end portion; and a fitting connected to the second end portion of the hose and having an opening in fluid communication with the hose; and a membrane configured to cover the opening in the fitting, the membrane configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane in accordance with the control event.
- the apparatus is mounted on the subject where an effect is to occur.
- a garment may be mounted on the subject where an effect is to occur and configured with at least one hole, the at least one hole being dimensioned and configured to receive a fitting on which the membrane is connected, wherein the membrane is disposed at least flush with a surface of the garment.
- the at least one hole may include a plurality of holes formed at a plurality of locations on the garment.
- the garment may include a vest which fits under a wardrobe item.
- the second end portion may include a fitting and an open ended cap such that the membrane is secured between the fitting and the cap.
- the cap preferably includes an inner circumference having a knife edge for contacting the membrane.
- the fitting may include a flange.
- the apparatus further includes an electrical power source for controlling the valve and the valve includes a normally closed solenoid valve.
- the valve may be controlled remotely.
- the membrane preferably includes a polymeric material stretched across a seal ring.
- the ejection fluid may include at least one of a colored fluid and particulate matter.
- FIG. 1 is a schematic diagram of an exemplary system showing a back side of a vest having two pressure vessels, two solenoids, batteries and a radio controlled device for opening the solenoids to release pressure into a material-filled hose in accordance with one embodiment;
- FIG. 2 is a schematic diagram of an exemplary system showing a front side of the vest of FIG. 1 having predefined hole locations where the effect may be desired in accordance with the embodiment of FIG. 1 ;
- FIG. 3 is a diagram showing an alternate enclosure to permit pressure build up before yielding in accordance with an illustrative embodiment
- FIG. 4 is a side view of an exit nozzle in accordance with one illustrative embodiment
- FIG. 5 is an exploded view showing the use of a check valve in the hose/pressure line in accordance with one illustrative embodiment
- FIG. 6 is a flow diagram showing operation of the blood-hit effect in accordance with one illustrative embodiment
- FIG. 7 is an exploded view showing the use of a membrane and ring in accordance with one illustrative embodiment
- FIG. 8 is a perspective view of a fitting and cap assembly for capturing a membrane therebetween in accordance with one embodiment
- FIG. 9 is a cross-sectional view showing the cap and membrane of FIG. 8 ;
- FIG. 10 is a cross-sectional view showing the fitting with a direction changing feature for redirecting fluid.
- the present invention provides systems and methods for pneumatic blood-hit effects.
- a non-pyrotechnic detonator supported effect is provided, which overcomes the disadvantages of conventional effects.
- the blood-hit effect incorporates principles of compressed air to deliver high velocity gas into a chamber capable of exploding.
- the chamber includes an effect liquid, which may be theatrical stage blood or any other matter which is needed to exit a terminating output nozzle so as to burst out the loaded substance.
- Such matter may include particulate matter, which would have been unacceptable and dangerous while using a pyrotechnic charge.
- the blood-hit in accordance with the present principles achieves an alternative to the standardized technique as previously described using non-pyrotechnic devices and explosive perishables such as detonators.
- the present invention is described in terms of a blood-hit effect; however, the present invention is much broader and may include any effect carried out on a person. For example, another effect may include an oozing wound or blemish, etc.
- the present invention is applicable to any method where a bursting action is needed including replacing any application where pyrotechnics were previously employed.
- processor or “controller” should not be construed to refer exclusively to hardware capable of executing software, and may implicitly include, without limitation, digital signal processor (“DSP”) hardware, read-only memory (“ROM”) for storing software, random access memory (“RAM”), and non-volatile storage.
- DSP digital signal processor
- ROM read-only memory
- RAM random access memory
- any element expressed as a means for performing a specified function is intended to encompass any way of performing that function including, for example, a) a combination of circuit elements that performs that function or b) software in any form, including, therefore, firmware, microcode or the like, combined with appropriate circuitry for executing that software to perform the function.
- the invention as defined resides in the fact that the functionalities provided by the various recited means are combined and brought together in the manner which the disclosure calls for. It is thus regarded that any means that can provide those functionalities are equivalent to those shown herein.
- the illustrative system 10 includes a garment such as, e.g., a body vest 12 in two pieces 14 and 16 .
- the body vest 12 may be constructed of a foam material or other soft and flexible material.
- vest 12 includes, e.g., 1 ⁇ 4′′ and/or 1 ⁇ 8′′ closed cell foam incorporating hoop and loop fasteners 18 (or other fasteners) to strap or sandwich an actor/wearer with the vest 12 for a snug fit.
- one piece 14 of the vest material is positioned on the front (chest & belly) and one piece 16 of the material is placed on the actor/wearer's back.
- Fasteners 18 can be employed to secure the two pieces 14 and 16 of material, e.g., at the locations of broadside from waist area to the area under the armpit on both sides left and right. Fasteners 18 may also be used to secure the two pieces 14 and 16 over the left and right shoulders. Straps 20 may be stretchable or non-stretchable as needed and connect to fasteners 18 .
- the device to may be employed without the vest 12 .
- a piece of foam or other material may be secured by tape of the like to an actor and the hose and the fitting as will be described below may be stowed in a concealed way somewhere on the actor's body. If the vest 12 is employed, the end fitting 46 and hose can easily be stowed and concealed in or under the vest 12 .
- the front piece 14 includes an array of bullet hole locations 22 preset to achieve a desired effect of a bullet hit on the actor/talent wearing the vest 12 .
- the end of a fitting 46 is preferably flush or underflush with the vest material to help conceal the fitting 46 during a performance. It should be understood that the pattern of holes may be modified or placed on any body part of an actor.
- the back piece 16 secures multiple components including a delivery system 24 employed to achieve the desired effect from the front piece 14 .
- the vest 12 may be provided in different sizes, e.g., petite, small, med, large and extra large.
- Delivery system 24 includes an ultra light weight pressure vessel 26 (two are illustratively shown) constructed to hold, e.g., about 100 psi.
- Vessel 26 may include a plastic material, such as polyvinyl.
- Vessel 26 is preferably a cylinder with about a 1′′ diameter having modified hose barb plugs 28 connected with 1 ⁇ 4′′ npt female threads on a first end and a 1 ⁇ 4′′ npt shorts nipple plugs 32 on the other end.
- the plugs 28 and 32 may create a seal that is secured using hose clamps 34 or equivalent devices.
- Plugs 28 are preferably fitted with an air intake valve 36 employed to charge the vessels 26 with air or gas. Intake air filler valve 36 may be of the kind used to inflate automobile and bicycle tires.
- Vessel(s) 26 may be configured in different orientations and may be of different sizes.
- Modified hose barb plug 32 includes a short nipple fitted to the input side of a 1 ⁇ 4′′ Normally Closed 12 Volt DC solenoid 40 .
- a battery pack 52 or other power source is employed. It should be understood that other diameter fittings may be used and that the system 10 can also be adapted to operate with 110 Volt AC or other power source. However, use of AC power includes the use of a cable from the solenoid 40 to connect to a powered voltage line.
- Fitted to the output side of the solenoid 40 is a fitting 42 (e.g., a 1 ⁇ 4′′ npt PI (push-in) fixed elbow or straight fitting).
- “Push-in” connected to this fitting 42 is a hose 44 , e.g., 1 ⁇ 4′′ poly vinyl hose.
- the length of the hose 44 may be determined by the distance to the location of the desired effect hole or location on the body where the effect is needed.
- fitting 46 Fitted at the end of the hose 44 , which may include a modified 1 ⁇ 4′′ npt PI (push-in, i.e., a spring loaded quick connect fitting) fixed elbow. Fitting 46 may be a threaded end of an elbow cut down by at least about 50%.
- a piece of light gauge plastic shipping tape 48 or other polymeric material is adhered to the fitting 46 to create a leak proof seal under normal atmospheric pressure.
- Tape 48 may be employed to be the burstable interface during operation of the system 10 .
- Tape 48 may include plastic wrap, cellophane, transparent tape, rubber, etc. While tape 48 may be employed with adhesive other mechanical, chemical bonding or adhesive connections may be employed to secure the membrane or tape to the fitting 46 .
- FIGS. 1 and 2 is preferably secured to a user or subject on, which the effect will be employed.
- a user preferably employs the effect on his/her person and the effect is activated during a film or television production, in an on-stage-production, reenactment or other event where a staged blood-hit or similar effect is needed.
- fitting 46 securedly receives a plastic cup-like enclosure 50 .
- Enclosure 50 may be glued or otherwise fixed in place.
- Enclosure 50 is open ended toward the pressure line 44 to receive high velocity fluid.
- Enclosure 50 is designed to burst when solenoid 40 releases pressurized fluid into the hose 44 .
- Enclosure expands and then yields to provide a burst with fluid ejected.
- Enclosure 50 may be scored 53 to provide weak spots to ensure that the enclosure 50 bursts under pressure.
- enclosure 50 may include a membrane 59 stretched, adhered or formed on a ring 67 .
- the ring 67 can thread onto fitting 46 (or attach by other means).
- the membrane 59 can function similarly to the enclosure 50 and provide a pressure build up to permit a bursting effect in operation.
- the membrane 59 and ring 67 could provide an easy and repeatable attachment/detachment with the fitting to permit reliable operation of the device.
- the membrane 59 may be bonded, glued, mechanically connected (compression fitted or interference fitted), etc. to the ring.
- the ring 67 may be employed to secure fitting 46 to vest 12 as depicted in FIG. 7 .
- Membrane 159 includes a polymeric material, rubber, plastic or the like. In one embodiment a polyethylene plastic is employed, in another embodiment, a rubber is employed. Membrane 159 may have a thickness of between about 0.25 mils to about 2 mils, the thickness of which is adjusted to provide a particular effect. For example, if the effect is to make blood splatter a thicker membrane 159 is desirable. If the blood or other fluid is to ooze, a thinner membrane 159 is desirable. A preferred thickness range for a blood hit is between about 1 to 1.5 mils. Membrane may also be scored to create a desired effect.
- Membrane 159 may be stretched and secured on a ring 160 .
- Ring 160 may include an o-ring or other sealing device.
- one or more o-rings 167 may be employed on either side of the membrane 159 to provide a pressure seal against pneumatic pressure during the effect operation.
- a fitting 162 includes a threaded portion 164 to receive a threaded portion 174 of a cap 168 .
- Cap 168 includes an open end with an overhanging surface 170 that terminates in a knife edge 172 at its inner circumference.
- membrane 159 is placed into cap as shown in FIG. 9 .
- Cap 168 is threaded over fitting 162 to capture the membrane 159 and ring 160 between a surface 166 and an underside of the overhang 170 as shown in FIG. 9 .
- membrane 159 experiences a suitable pressure
- membrane 159 expands outward in the direction of arrow A. Expansion of the membrane 159 causes contact with knife edge 172 all around the inner circumference of the cap 168 .
- the inner circumference of the cap may have other profiles including points which can yield the membrane sooner. These points may extend radially inward from the inner circumference or take other shapes.
- fitting 162 may be modified in a plurality of ways to provide directional or splattering effects.
- a flat head screw 182 or other hardware that effects flow may be installed in fitting 162 .
- a securing portion 180 may be connected or attached to fitting to secure the screw or hardware 180 .
- the fluid is directionally splattered in the direction of arrows “B”.
- a cotton ball or other obstructions may be employed in the fitting to create splatter.
- one or more solenoids 40 are powered by a battery pack 52 (or other power source).
- a recharge plug 55 may be included to recharge the batteries 52 .
- An in-line power switch may also be included to disconnect the batteries when not in use.
- a radio receiver 54 receives a command from a remote operator with a transmitter (not shown) and signals the solenoid or solenoids 40 to open, releasing pressure into the hose 44 . Due to the pressure change, tape 48 , enclosure 50 or membrane 59 , 159 bursts open or off the fitting 46 to create the blood-hit effect.
- solenoids 40 may be provided by wireless or wired means.
- wired means may include a hand switch on the actor carrying the blood-hit device.
- Switch connection may be activated by an on-stage switch, e.g., the actor steps on a contact that makes a connection with a contact on the actor's shoe to activate the blood-hit device.
- solenoids may be controlled and timed electronically using a processor chip or other computer-like device (on or off the subject with the effect) to synchronize the activation of blood-hit effects at different positions.
- the chip may be remote or on the blood-hit apparatus.
- Radio receiver 54 may be configured to set off multiple shots by controlling multiple solenoids 40 , or a single solenoid 40 which includes a mechanical switch (e.g., valves) to switch between hoses ( 44 ) to permit multiple shots to be produced.
- a mechanical switch e.g., valves
- fitting 46 may include a flange 60 to permit better attachment to the vest 12 .
- Flange 60 further assist in reducing the amount of protrusion passed the vest 12 .
- Other spacers and pads may also be employed as needed to ensure that the amount of protrusion is maintained to a desired amount.
- a membrane 59 may be adhered to the open end of the fitting 46 or otherwise secured to the fitting to resist fluid in the tube or hose until the burst effect is provided.
- a one-way check valve 62 may be employed between the fitting 42 from the solenoid 40 and the hose 44 . This prevents back flow and increases the reliability of the effect.
- Check valve 62 may include a cracking pressure of e.g., 2 pounds.
- a method for employing the effect in accordance with present principles is illustratively depicted.
- subject e.g., actor/talent
- one or more solenoids are set at a normally closed position.
- using a compressor e.g., fitted with an air hose with, e.g., a tire valve chuck, provide a pressure regulated to 100 psi, or charge the pressure vessel or vessels to an appropriate level.
- guide poly vinyl hose from solenoid output to a location or locations of a desired blood effect by placing the end with the fitting outwardly from the body of the actor into the vest through one of the preset bullet hole locations.
- the hose should be tucked inside between the front part of vest and the body of the actor,
- the modified elbow fitting with an adhesive tape at the end of the poly vinyl hose should fit into any one of the preset bullet hole locations pushed in and flush with the front of the vest.
- the exit end of the hose is preferably terminated with a membrane and cap.
- the poly vinyl hose is disconnected from the solenoid and carefully filled with blood (e.g., between about 5-15 milliliters) or other liquid or particulate matter.
- the hose is then reconnected to the solenoid.
- a wardrobe item or costume to be worn over the vest is pre-cut, e.g., in the pattern of a plus sign (+) and then temporarily fastened together on the actor so that the costume is ready to be ruptured by placing the precut over the output nozzle.
- the system is commanded for the solenoid to open via electrical connection, releasing contents of stage blood fluid in the hose between solenoid and output nozzle.
- the force will rupture the precut wardrobe/costume and blood fluid will burst out with high velocity.
- the command is preferably activated by a wireless method, although a wired method may also be employed.
- a 12 volt solenoid is preferred.
- a small 12 volt battery or an eight cell battery harness using AAA or AA batteries may be securely fastened to the back part of the vest alongside the pressure vessel.
- a 12 volt radio receiver switch in line between battery and solenoid is triggered by a radio remote transmitter (not shown).
- the procedure may be repeated as the equipment is re-useable.
- multiple effect shots may be run concurrently or in succession on a same person. While the vest is preferably, other garments, costumes or props may be employed with the blood-hit effect in accordance with the present principles.
- a state licensed pyrotechnician is not needed, and permission to use explosives and permits granted by the Fire Dept are also not needed.
- Department of Traffic (DOT) hazardous shipment or transport of explosives is not necessary.
- Alcohol, Tobacco and Firearms (ATF) agency permits for the permission to purchase and/or store ATF regulated detonators, is no longer needed.
- Permission to use hazardous materials of a pyrotechnic substance at a location of an agreed property owner is necessary. Additional liability coverage of crew and talent hired by the production company is not needed.
- Detonators, pyrotechnic controllers, cables, channel devices boxes, fire extinguishers etc. are no longer needed.
- the fear factor and risk of actors including production crew is greatly reduced, and no more hazards involved for scenes including fire or actors smoking cigarettes.
- the present principles provide a great amount of flexibility in the type of effect provided. For example, the following may be adjusted: levels of pressurization stored in the air reservoir (up to e.g., 120 psi for safety reasons), choice of desired amount of liquids in delivery hoses creates differentiating mechanical output effects, a small cotton wad may be installed in the elbow fitting directly under the membrane ( 159 ) prior to loading liquids in delivery hoses (to distribute the load), viscosity of liquid loaded into delivery hoses may be controlled, membrane thickness, length of delivery hose, wardrobe preparations etc.
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Abstract
An apparatus for a blood-hit effect includes a pressurized reservoir, a valve, and a hose having a first end portion coupled to the reservoir through the valve. The hose is configured to store an ejection fluid and the hose includes a second end portion. A membrane is configured to cover a second end portion of the hose. The membrane is disposed at a location on a subject where an effect is to occur. The membrane is configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane.
Description
- This application claims priority to Provisional Application No. 60/845,701 filed on Sep. 19, 2006 and incorporated herein by reference.
- The present invention generally relates to special effects technology and, more particularly, to a system and method where for a blood-hit effect without pyrotechnics.
- Conventional techniques for achieving a bloody bullet hit on an actor include using what the industry refers to as a “SQUIB”. The squib, in reality is an electrically ignited detonator that an actor wears on their person. The squib is backed by a steel plate to protect the actor from harm when the charge is detonated. On top of the detonator, a pre-manufactured plastic bag of stage blood is fastened. The whole setup is wire harnessed with a control cable connected to a pyrotechnic controller. The actor then places his costume over the blood bag/detonator/steel plate setup.
- A state licensed pyrotechnic operator is required to activate the detonator from the controller and the detonators explosive powers will burst through the blood bag and rupture the pre-scored/distressed area of the costume where this effect will reveal a simulation of a bullet hole with blood being ejected.
- The conventional blood-hit effects may be dangerous, and require bulky components, such as a steel plate. This limits the scenarios in which the effect can be used since the plate and the equipment is cumbersome. In addition, a pyrotechnic specialist is needed by law in many jurisdictions to activate the charge. This adds to the complexity of usage and the overall expense.
- Therefore, a need exists for a blood-hit effect that overcomes these disadvantages.
- A blood-hit effect system includes a pressure vessel and a solenoid configured to fit on a person. A hose connects to the solenoid and is filled with a fluid. A radio control device activates the solenoid to open to release air from the pressure vessel such that the fluid in the line is ejected from a nozzle located on the body of the person to provide the effect of being shot at the location of the nozzle.
- The nozzle may be located on the person at an arbitrary location. In one embodiment, a vest is provided with a plurality of predefined holes where the nozzle is installed. Multiple nozzles may be employed in communication with the same or different pressure vessels and solenoids. The effect hits may be timed to simulate multiple shots at different locations or at different times.
- An apparatus for a blood-hit effect includes a pressurized reservoir, a valve, and a hose having a first end portion coupled to the reservoir through the valve. The hose is configured to store an ejection fluid and the hose includes a second end portion. A membrane is configured to cover a second end portion of the hose. The membrane is disposed at a location on a subject where an effect is to occur. The membrane is configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane.
- An apparatus for a blood-hit effect includes a pressurized reservoir having a controlled valve for releasing pressure in accordance with a control event, a hose having a first end portion coupled to the reservoir through the valve, the hose configured to store an ejection fluid, the hose having a second end portion; and a fitting connected to the second end portion of the hose and having an opening in fluid communication with the hose; and a membrane configured to cover the opening in the fitting, the membrane configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane in accordance with the control event.
- In alternate embodiments, the apparatus is mounted on the subject where an effect is to occur. A garment may be mounted on the subject where an effect is to occur and configured with at least one hole, the at least one hole being dimensioned and configured to receive a fitting on which the membrane is connected, wherein the membrane is disposed at least flush with a surface of the garment. The at least one hole may include a plurality of holes formed at a plurality of locations on the garment. The garment may include a vest which fits under a wardrobe item. The second end portion may include a fitting and an open ended cap such that the membrane is secured between the fitting and the cap. The cap preferably includes an inner circumference having a knife edge for contacting the membrane. The fitting may include a flange. The apparatus further includes an electrical power source for controlling the valve and the valve includes a normally closed solenoid valve. The valve may be controlled remotely. The membrane preferably includes a polymeric material stretched across a seal ring. The ejection fluid may include at least one of a colored fluid and particulate matter.
- The advantages, nature, and various additional features of the invention will appear more fully upon consideration of the illustrative embodiments now to be described in detail in connection with accompanying drawings wherein:
-
FIG. 1 is a schematic diagram of an exemplary system showing a back side of a vest having two pressure vessels, two solenoids, batteries and a radio controlled device for opening the solenoids to release pressure into a material-filled hose in accordance with one embodiment; -
FIG. 2 is a schematic diagram of an exemplary system showing a front side of the vest ofFIG. 1 having predefined hole locations where the effect may be desired in accordance with the embodiment ofFIG. 1 ; -
FIG. 3 is a diagram showing an alternate enclosure to permit pressure build up before yielding in accordance with an illustrative embodiment; -
FIG. 4 is a side view of an exit nozzle in accordance with one illustrative embodiment; -
FIG. 5 is an exploded view showing the use of a check valve in the hose/pressure line in accordance with one illustrative embodiment; -
FIG. 6 is a flow diagram showing operation of the blood-hit effect in accordance with one illustrative embodiment; -
FIG. 7 is an exploded view showing the use of a membrane and ring in accordance with one illustrative embodiment; -
FIG. 8 is a perspective view of a fitting and cap assembly for capturing a membrane therebetween in accordance with one embodiment; -
FIG. 9 is a cross-sectional view showing the cap and membrane ofFIG. 8 ; and -
FIG. 10 is a cross-sectional view showing the fitting with a direction changing feature for redirecting fluid. - It should be understood that the drawings are for purposes of illustrating the concepts of the invention and are not necessarily the only possible configuration for illustrating the invention.
- The present invention provides systems and methods for pneumatic blood-hit effects. Advantageously, a non-pyrotechnic detonator supported effect is provided, which overcomes the disadvantages of conventional effects. In accordance with one embodiment, the blood-hit effect incorporates principles of compressed air to deliver high velocity gas into a chamber capable of exploding. The chamber includes an effect liquid, which may be theatrical stage blood or any other matter which is needed to exit a terminating output nozzle so as to burst out the loaded substance. Such matter may include particulate matter, which would have been unacceptable and dangerous while using a pyrotechnic charge. The blood-hit in accordance with the present principles achieves an alternative to the standardized technique as previously described using non-pyrotechnic devices and explosive perishables such as detonators.
- It is to be understood that the present invention is described in terms of a blood-hit effect; however, the present invention is much broader and may include any effect carried out on a person. For example, another effect may include an oozing wound or blemish, etc. In addition, the present invention is applicable to any method where a bursting action is needed including replacing any application where pyrotechnics were previously employed.
- The present description illustrates the principles of the present invention. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the principles of the invention and are included within its spirit and scope.
- All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the principles of the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions.
- Moreover, all statements herein reciting principles, aspects, and embodiments of the invention, as well as specific examples thereof are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future, i.e., any elements developed that perform the same function, regardless of structure.
- The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing software in association with appropriate software. When provided by a processor, the functions may be provided by a single dedicated processor, by a single shared processor, or by a plurality of individual processors, some of which may be shared. Moreover, explicit use of the term “processor” or “controller” should not be construed to refer exclusively to hardware capable of executing software, and may implicitly include, without limitation, digital signal processor (“DSP”) hardware, read-only memory (“ROM”) for storing software, random access memory (“RAM”), and non-volatile storage.
- Other hardware, conventional and/or custom, may also be included. Their function may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually, the particular technique being selectable by the implementer as more specifically understood from the context.
- In the disclosure hereof, any element expressed as a means for performing a specified function is intended to encompass any way of performing that function including, for example, a) a combination of circuit elements that performs that function or b) software in any form, including, therefore, firmware, microcode or the like, combined with appropriate circuitry for executing that software to perform the function. The invention as defined resides in the fact that the functionalities provided by the various recited means are combined and brought together in the manner which the disclosure calls for. It is thus regarded that any means that can provide those functionalities are equivalent to those shown herein.
- Referring now in specific detail to the drawings in which like reference numerals identify similar or identical elements throughout the several views, and initially to
FIGS. 1 and 2 , asystem 10 for a blood-hit in accordance with one embodiment is illustratively shown. Theillustrative system 10 includes a garment such as, e.g., abody vest 12 in twopieces body vest 12 may be constructed of a foam material or other soft and flexible material. In one embodiment,vest 12 includes, e.g., ¼″ and/or ⅛″ closed cell foam incorporating hoop and loop fasteners 18 (or other fasteners) to strap or sandwich an actor/wearer with thevest 12 for a snug fit. In one example, onepiece 14 of the vest material is positioned on the front (chest & belly) and onepiece 16 of the material is placed on the actor/wearer's back.Fasteners 18 can be employed to secure the twopieces Fasteners 18 may also be used to secure the twopieces Straps 20 may be stretchable or non-stretchable as needed and connect tofasteners 18. - It should be understood that the device to may be employed without the
vest 12. A piece of foam or other material may be secured by tape of the like to an actor and the hose and the fitting as will be described below may be stowed in a concealed way somewhere on the actor's body. If thevest 12 is employed, the end fitting 46 and hose can easily be stowed and concealed in or under thevest 12. - The
front piece 14 includes an array ofbullet hole locations 22 preset to achieve a desired effect of a bullet hit on the actor/talent wearing thevest 12. The end of a fitting 46 is preferably flush or underflush with the vest material to help conceal the fitting 46 during a performance. It should be understood that the pattern of holes may be modified or placed on any body part of an actor. In this example, theback piece 16 secures multiple components including adelivery system 24 employed to achieve the desired effect from thefront piece 14. Thevest 12 may be provided in different sizes, e.g., petite, small, med, large and extra large. -
Delivery system 24 includes an ultra light weight pressure vessel 26 (two are illustratively shown) constructed to hold, e.g., about 100 psi.Vessel 26 may include a plastic material, such as polyvinyl.Vessel 26 is preferably a cylinder with about a 1″ diameter having modified hose barb plugs 28 connected with ¼″ npt female threads on a first end and a ¼″ npt shorts nipple plugs 32 on the other end. Theplugs Plugs 28 are preferably fitted with anair intake valve 36 employed to charge thevessels 26 with air or gas. Intakeair filler valve 36 may be of the kind used to inflate automobile and bicycle tires. Vessel(s) 26 may be configured in different orientations and may be of different sizes. - Modified
hose barb plug 32 includes a short nipple fitted to the input side of a ¼″Normally Closed 12Volt DC solenoid 40. Abattery pack 52 or other power source is employed. It should be understood that other diameter fittings may be used and that thesystem 10 can also be adapted to operate with 110 Volt AC or other power source. However, use of AC power includes the use of a cable from thesolenoid 40 to connect to a powered voltage line. - Fitted to the output side of the
solenoid 40 is a fitting 42 (e.g., a ¼″ npt PI (push-in) fixed elbow or straight fitting). “Push-in” connected to this fitting 42 is ahose 44, e.g., ¼″ poly vinyl hose. The length of thehose 44 may be determined by the distance to the location of the desired effect hole or location on the body where the effect is needed. Fitted at the end of thehose 44 is fitting 46, which may include a modified ¼″ npt PI (push-in, i.e., a spring loaded quick connect fitting) fixed elbow. Fitting 46 may be a threaded end of an elbow cut down by at least about 50%. This is done to minimize the protruding profile when fitted into thefront part 14 of thevest 12. At the end of this modified open ended elbow or fitting 46, a piece of light gaugeplastic shipping tape 48 or other polymeric material is adhered to the fitting 46 to create a leak proof seal under normal atmospheric pressure.Tape 48 may be employed to be the burstable interface during operation of thesystem 10.Tape 48 may include plastic wrap, cellophane, transparent tape, rubber, etc. Whiletape 48 may be employed with adhesive other mechanical, chemical bonding or adhesive connections may be employed to secure the membrane or tape to the fitting 46. - It should be understood that the apparatus depicted in
FIGS. 1 and 2 is preferably secured to a user or subject on, which the effect will be employed. A user preferably employs the effect on his/her person and the effect is activated during a film or television production, in an on-stage-production, reenactment or other event where a staged blood-hit or similar effect is needed. - In an alternate embodiment in
FIG. 3 , fitting 46 securedly receives a plastic cup-like enclosure 50.Enclosure 50 may be glued or otherwise fixed in place.Enclosure 50 is open ended toward thepressure line 44 to receive high velocity fluid.Enclosure 50 is designed to burst whensolenoid 40 releases pressurized fluid into thehose 44. Enclosure expands and then yields to provide a burst with fluid ejected.Enclosure 50 may be scored 53 to provide weak spots to ensure that theenclosure 50 bursts under pressure. - In another embodiment in
FIG. 7 ,enclosure 50 may include amembrane 59 stretched, adhered or formed on aring 67. Thering 67 can thread onto fitting 46 (or attach by other means). Themembrane 59 can function similarly to theenclosure 50 and provide a pressure build up to permit a bursting effect in operation. Themembrane 59 andring 67 could provide an easy and repeatable attachment/detachment with the fitting to permit reliable operation of the device. Themembrane 59 may be bonded, glued, mechanically connected (compression fitted or interference fitted), etc. to the ring. Thering 67 may be employed to secure fitting 46 to vest 12 as depicted inFIG. 7 . - Referring to
FIGS. 8 and 9 , an alternate embodiment is shown for securing amembrane 159 in accordance with the present principles.Membrane 159 includes a polymeric material, rubber, plastic or the like. In one embodiment a polyethylene plastic is employed, in another embodiment, a rubber is employed.Membrane 159 may have a thickness of between about 0.25 mils to about 2 mils, the thickness of which is adjusted to provide a particular effect. For example, if the effect is to make blood splatter athicker membrane 159 is desirable. If the blood or other fluid is to ooze, athinner membrane 159 is desirable. A preferred thickness range for a blood hit is between about 1 to 1.5 mils. Membrane may also be scored to create a desired effect.Membrane 159 may be stretched and secured on aring 160.Ring 160 may include an o-ring or other sealing device. In addition or alternately, one or more o-rings 167 may be employed on either side of themembrane 159 to provide a pressure seal against pneumatic pressure during the effect operation. - A fitting 162 includes a threaded
portion 164 to receive a threadedportion 174 of acap 168.Cap 168 includes an open end with an overhangingsurface 170 that terminates in aknife edge 172 at its inner circumference. During assembly in preparation for the effect,membrane 159 is placed into cap as shown inFIG. 9 .Cap 168 is threaded over fitting 162 to capture themembrane 159 andring 160 between asurface 166 and an underside of theoverhang 170 as shown inFIG. 9 . When themembrane 159 experiences a suitable pressure,membrane 159 expands outward in the direction of arrow A. Expansion of themembrane 159 causes contact withknife edge 172 all around the inner circumference of thecap 168. This permits a circumferential yielding effect and permits an additional amount of fluid to exit thecap 168 from the fitting 162. In addition, by selecting the pressure and the thickness of themembrane 159, a predictable and repeatable effect can be achieved. The inner circumference of the cap may have other profiles including points which can yield the membrane sooner. These points may extend radially inward from the inner circumference or take other shapes. - Referring to
FIG. 10 , fitting 162 may be modified in a plurality of ways to provide directional or splattering effects. In one embodiment, aflat head screw 182 or other hardware that effects flow may be installed in fitting 162. A securingportion 180 may be connected or attached to fitting to secure the screw orhardware 180. During operation, as fluid is ejected, the fluid is directionally splattered in the direction of arrows “B”. Alternately, a cotton ball or other obstructions may be employed in the fitting to create splatter. - Referring again to
FIG. 1 , during operation, one ormore solenoids 40 are powered by a battery pack 52 (or other power source). Arecharge plug 55 may be included to recharge thebatteries 52. An in-line power switch may also be included to disconnect the batteries when not in use. A radio receiver 54 receives a command from a remote operator with a transmitter (not shown) and signals the solenoid orsolenoids 40 to open, releasing pressure into thehose 44. Due to the pressure change,tape 48,enclosure 50 ormembrane - It should be understood that the activation of
solenoids 40 may be provided by wireless or wired means. For example, wired means may include a hand switch on the actor carrying the blood-hit device. Switch connection may be activated by an on-stage switch, e.g., the actor steps on a contact that makes a connection with a contact on the actor's shoe to activate the blood-hit device. It should also be understood that solenoids may be controlled and timed electronically using a processor chip or other computer-like device (on or off the subject with the effect) to synchronize the activation of blood-hit effects at different positions. The chip may be remote or on the blood-hit apparatus. - Radio receiver 54 may be configured to set off multiple shots by controlling
multiple solenoids 40, or asingle solenoid 40 which includes a mechanical switch (e.g., valves) to switch between hoses (44) to permit multiple shots to be produced. - Referring to
FIG. 4 , fitting 46 may include aflange 60 to permit better attachment to thevest 12.Flange 60 further assist in reducing the amount of protrusion passed thevest 12. Other spacers and pads may also be employed as needed to ensure that the amount of protrusion is maintained to a desired amount. Amembrane 59 may be adhered to the open end of the fitting 46 or otherwise secured to the fitting to resist fluid in the tube or hose until the burst effect is provided. - Referring to
FIG. 5 , a one-way check valve 62 may be employed between the fitting 42 from thesolenoid 40 and thehose 44. This prevents back flow and increases the reliability of the effect. Checkvalve 62 may include a cracking pressure of e.g., 2 pounds. - Referring to
FIG. 6 , a method for employing the effect in accordance with present principles is illustratively depicted. Inblock 102, ensure subject (e.g., actor/talent) has a snug fit by pre-fitting into a correct sized one or two-piece vest. (using the fasteners to make the snug fit). Inblock 104, one or more solenoids are set at a normally closed position. Inblock 106, using a compressor, e.g., fitted with an air hose with, e.g., a tire valve chuck, provide a pressure regulated to 100 psi, or charge the pressure vessel or vessels to an appropriate level. Inblock 108, guide poly vinyl hose from solenoid output to a location or locations of a desired blood effect by placing the end with the fitting outwardly from the body of the actor into the vest through one of the preset bullet hole locations. Preferably, the hose should be tucked inside between the front part of vest and the body of the actor, The modified elbow fitting with an adhesive tape at the end of the poly vinyl hose should fit into any one of the preset bullet hole locations pushed in and flush with the front of the vest. Alternately, the exit end of the hose is preferably terminated with a membrane and cap. - In
block 110, the poly vinyl hose is disconnected from the solenoid and carefully filled with blood (e.g., between about 5-15 milliliters) or other liquid or particulate matter. The hose is then reconnected to the solenoid. Inblock 112, a wardrobe item or costume to be worn over the vest is pre-cut, e.g., in the pattern of a plus sign (+) and then temporarily fastened together on the actor so that the costume is ready to be ruptured by placing the precut over the output nozzle. - In
block 114, the system is commanded for the solenoid to open via electrical connection, releasing contents of stage blood fluid in the hose between solenoid and output nozzle. The force will rupture the precut wardrobe/costume and blood fluid will burst out with high velocity. The command is preferably activated by a wireless method, although a wired method may also be employed. For total wireless remote control, a 12 volt solenoid is preferred. A small 12 volt battery or an eight cell battery harness using AAA or AA batteries may be securely fastened to the back part of the vest alongside the pressure vessel. A 12 volt radio receiver switch in line between battery and solenoid is triggered by a radio remote transmitter (not shown). - In
block 116, the procedure may be repeated as the equipment is re-useable. In addition, multiple effect shots may be run concurrently or in succession on a same person. While the vest is preferably, other garments, costumes or props may be employed with the blood-hit effect in accordance with the present principles. - Many advantages are provided by the present system over the standard methods for creating the blood-hit effect with the use of pyrotechnics. For example, a state licensed pyrotechnician is not needed, and permission to use explosives and permits granted by the Fire Dept are also not needed. Department of Traffic (DOT) hazardous shipment or transport of explosives is not necessary. Alcohol, Tobacco and Firearms (ATF) agency permits for the permission to purchase and/or store ATF regulated detonators, is no longer needed. Permission to use hazardous materials of a pyrotechnic substance at a location of an agreed property owner is necessary. Additional liability coverage of crew and talent hired by the production company is not needed. Detonators, pyrotechnic controllers, cables, channel devices boxes, fire extinguishers etc. are no longer needed. In addition, the fear factor and risk of actors including production crew is greatly reduced, and no more hazards involved for scenes including fire or actors smoking cigarettes.
- In addition, the actor remains relatively clean since the blood or other material is directed away from the vest and outside of the vest. It should be understood that similar embodiments may be employed for wall hits or other hits in accordance with the present principles.
- It should also be understood that the present principles provide a great amount of flexibility in the type of effect provided. For example, the following may be adjusted: levels of pressurization stored in the air reservoir (up to e.g., 120 psi for safety reasons), choice of desired amount of liquids in delivery hoses creates differentiating mechanical output effects, a small cotton wad may be installed in the elbow fitting directly under the membrane (159) prior to loading liquids in delivery hoses (to distribute the load), viscosity of liquid loaded into delivery hoses may be controlled, membrane thickness, length of delivery hose, wardrobe preparations etc.
- Having described preferred embodiments for system and method for a pneumatic blood-hit effect (which are intended to be illustrative and not limiting), it is noted that modifications and variations can be made by persons skilled in the art in light of the above teachings. It is therefore to be understood that changes may be made in the particular embodiments disclosed which are within the scope and spirit of the invention as outlined by the appended claims. Having thus described aspects of the invention, with the details and particularity required by the patent laws, what is claimed and desired protected by Letters Patent is set forth in the appended claims.
Claims (24)
1. An apparatus for a blood-hit effect, comprising:
a pressurized reservoir;
a valve;
a hose having a first end portion coupled to the reservoir through the valve, the hose configured to store an ejection fluid, the hose having a second end portion; and
a membrane configured to cover a second end portion of the hose, the membrane being disposed at a location on a subject where an effect is to occur, the membrane configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane.
2. The apparatus as recited in claim 1 , wherein the apparatus is mounted on the subject where an effect is to occur.
3. The apparatus as recited in claim 1 , further comprising a garment mounted on the subject where an effect is to occur and configured with at least one hole, the at least one hole being dimensioned and configured to receive a fitting on which the membrane is connected, wherein the membrane is disposed at least flush with a surface of the garment.
4. The apparatus as recited in claim 3 , wherein the at least one hole includes a plurality of holes formed at a plurality of locations on the garment.
5. The apparatus as recited in claim 3 , wherein the garment includes a vest which fits under a wardrobe item.
6. The apparatus as recited in claim 1 , wherein the second end portion includes a fitting and an open ended cap such that the membrane is secured between the fitting and the cap.
7. The apparatus as recited in claim 6 , wherein the cap includes an inner circumference having a knife edge for contacting the membrane.
8. The apparatus as recited in claim 1 , wherein the fitting includes a flange.
9. The apparatus as recited in claim 1 , further comprising an electrical power source of activate the valve and the valve includes a normally closed solenoid valve.
10. The apparatus as recited in claim 1 , wherein the valve is controlled remotely.
11. The apparatus as recited in claim 1 , wherein the membrane includes a polymeric material stretched across a seal ring.
12. The apparatus as recited in claim 1 , wherein the ejection fluid includes at least one of a colored fluid and particulate matter.
13. An apparatus for a blood-hit effect, comprising:
a pressurized reservoir having a controlled valve for releasing pressure in accordance with a control event;
a hose having a first end portion coupled to the reservoir through the valve, the hose configured to store an ejection fluid, the hose having a second end portion; and
a fitting connected to the second end portion of the hose and having an opening in fluid communication with the hose; and
a membrane configured to cover the opening in the fitting, the membrane configured to burst in accordance with an instantaneous release of pressure from the valve to eject the ejection fluid through the membrane in accordance with the control event.
14. The apparatus as recited in claim 13 , wherein the apparatus is mounted on a subject where an effect is to occur.
15. The apparatus as recited in claim 13 , further comprising a garment mounted on the subject where an effect is to occur and configured with at least one hole, the at least one hole being dimensioned and configured to receive the fitting on which the membrane is connected, wherein the membrane is disposed at least flush with a surface of the garment.
16. The apparatus as recited in claim 15 , wherein the at least one hole includes a plurality of holes formed at a plurality of locations on the garment.
17. The apparatus as recited in claim 15 , wherein the garment includes a vest which fits under a wardrobe item.
18. The apparatus as recited in claim 13 , further comprising an open ended cap configured to threadedly engage the fitting such that the membrane is secured between the fitting and the cap.
19. The apparatus as recited in claim 18 , wherein the cap includes an inner circumference having a knife edge for contacting the membrane.
20. The apparatus as recited in claim 13 , wherein the fitting includes a flange.
21. The apparatus as recited in claim 13 , further comprising an electrical power source and the valve includes a normally closed solenoid valve.
22. The apparatus as recited in claim 13 , wherein the valve is controlled remotely.
23. The apparatus as recited in claim 13 , wherein the membrane includes a polymeric material stretched across a seal ring.
25. The apparatus as recited in claim 13 , wherein the ejection fluid includes at least one of a colored fluid and particulate matter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/857,543 US20080070476A1 (en) | 2006-09-19 | 2007-09-19 | Pneumatic blood-hit effect |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US84570106P | 2006-09-19 | 2006-09-19 | |
US11/857,543 US20080070476A1 (en) | 2006-09-19 | 2007-09-19 | Pneumatic blood-hit effect |
Publications (1)
Publication Number | Publication Date |
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US20080070476A1 true US20080070476A1 (en) | 2008-03-20 |
Family
ID=39189190
Family Applications (1)
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US11/857,543 Abandoned US20080070476A1 (en) | 2006-09-19 | 2007-09-19 | Pneumatic blood-hit effect |
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WO2015081447A1 (en) * | 2013-12-06 | 2015-06-11 | 8879192 Canada Inc., Dba Direct Hit Fx | Device for a special effect explosion or burst |
US20160169637A1 (en) * | 2014-11-12 | 2016-06-16 | Raymond Lee Eng | Impact activated explosion simulator |
CN112076482A (en) * | 2020-09-18 | 2020-12-15 | 陈通 | An ornamental absorbent doll |
US12268256B1 (en) * | 2019-09-17 | 2025-04-08 | B J Zarcone | Wearable fogging apparatus |
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