Abstract: A hanging device includes a retractable post and a leg assembly including a short leg and two long legs fixed to a lower end of the post. At least one set of support rod assembly is fixed to the post and two support rods which may be positioned in horizontal positions are provided to support bicycles thereon.

Abstract: A front panel for a display rack has a base, upstanding sidewalls connected along their bottom end portions to the base, face members connected to the front edges of the sidewalls, and an elongate connecting member connected to the top end portions of the face members. The base, face members and connecting member define a viewing window for the display rack through which a beverage container in a display rack in a refrigerator can be viewed. The base and connecting member curve outward to position a beverage container forward in the display rack. A pair of downwardly extending fingers fit into receiving slots in a front segment of the rack to fasten the front panel to the front segment of the display rack.

Abstract: A ratchet wrench storage adapter for use with a prior art storage mechanism for sockets. The ratchet wrench storage adapter comprises a ratchet wrench coupling opening bounded by a wrench receiving opening edge that is further coupled to an storage adapter clip. The adapter can then be coupled to the ratchet wrench and also to a prior art storage mechanism.

Abstract: A wrench support rack assembly includes aligned first and second confining members. Each of the confining members defines a groove, and has opposing first and second groove-defining faces confining the groove and spaced apart from each other by a first distance. A pressing member includes an L-shaped first leg disposed proximate to the first confining member, an L-shaped second leg disposed proximate to the second confining member, and a bridging portion interconnecting the first and second legs and having an abutment face spaced apart from a plane which is co-planar with the second groove-defining faces of the first and second confining members by a second distance that is shorter than the first distance.

Abstract: A hanger assembly comprises a housing, an outer rail, an inner rail and a slide member. The housing defines a chamber with at least one longitudinal opening. Within the chamber, the outer rail is fixedly mounted in a substantially parallel position relative to the longitudinal axis of the housing. The inner rail is slidingly engaged to the outer rail. The slide member is slidingly engaged to the inner rail. At least a portion of the slide member extends from the chamber through the at least one opening in the housing. The slide member is constructed and arranged to be moveable relative to the inner rail and the inner rail is constructed and arranged to be moveable relative to the outer rail, such that when the slide member is moved relative to the inner rail, the inner rail is simultaneously moved relative to the outer rail.

Abstract: In a releasable locking device, which is useful at a beam-to-column connection in a storage rack, a housing having a lateral wall with two parallel slots has an end wall at an outer end and is open at the inner end, a locking pin having an internal portion movable within and along the lateral wall is movable between a retracted position and an extended position, toward which the locking pin is biased, and an outer sleeve is movable outside and along the lateral wall of the housing and is connected to the locking pin via a connecting pin extending through the locking pin, through the parallel slots, at each end to the outer sleeve. The outer sleeve has an external flange to facilitate pulling of the outer sleeve to move the locking pin toward the retracted position.

Abstract: The invention is directed to a ring lift crane with a liftable ring forming a circular traveling path and having a plurality of segments which can be connected to one another. Within the ring, there is arranged a chassis having a superstructure which is connected with the chassis so as to be rotatable and which has a plurality of winches. The superstructure is provided with an adapter in each of two oppositely located end areas, and the adapters are supported in a rolling manner on the circular traveling path of the ring by rollers which are arranged in the end area of the adapters.

Abstract: A closure cap (1) with a cap base (2) and with a cap skirt (3) comprises an inner seal (4). The inner seal is provided with bleeding reliefs (11) which lift the sealing effect as soon as the cap base (2) is displaced axially upwards. The closure cap (1) comprises a first abutment and a second abutment (8). On screwing-on firstly the second abutment (8) comes into engagement with the container opening. By way of this a weakening zone (9) in the region of the cap base (3) is pretensioned to a predeterminable value. On account of the predeterminable pretensioning of the weakening zone (9) a bleeding at an exactly defined excess pressure is possible.

Abstract: A redundant seal for a vehicle fuel tank filler neck closure is provided for closing and opening an automobile fuel tank to the atmosphere. The redundant seal (48) includes a lower shoulder (51) which sealably engages a first valve seat and an upper shoulder (53) which sealably engages a second valve seat. The redundant seal (48) is appropriate for use in applications such as filler neck closures, pressure and vacuum-relief systems within tank filler neck closures, and capless filler neck closure systems.

Abstract: A lid for a container holding a flowable substance has an annular top wall. A side wall depends from the top wall, and has a mounting portion for connecting the lid on the container. The top wall has an opening that is adapted to permit the flow of the substance through the lid. The top wall also has a retaining member. The lid further has a closure member positioned on the mounting portion. The closure member is movable between a first position and a second position, wherein at least a portion of the closure member is received in the opening in the first position and at least a portion of the closure member is received in the retaining member in the second position. The opening and the closure member are cooperatively dimensioned such that the closure member is removably inserted in the opening. The retaining member and the closure member are cooperatively dimensioned such that the closure member is removably inserted in the retaining member.

Abstract: A paint container liner system including disposable liners and an open container for receiving at least one of the disposable liners, the liners being sized and configured to fit into the inside of the container and around the rim of the container, the liners being maintained in position in the container by a suction generated during installation in one embodiment and by a noncuring adhesive interposed between the liner and container in another embodiment, the liners also being stretched around the rim of the container and in another embodiment configured with a rounded bottom to retain the liner in place during use, the system also including a container cap with a slot for supporting a paint brush during periods of nonuse.

Abstract: An integral fuel tank fastener having a unitary fastener feature or hollow protuberance carried by and formed into a preferably blow molded multi-layer plastic fuel tank shell. The fuel tank shell preferably has a continuous intermediate layer, or permeation barrier, between continuous inner and outer layers in which the protuberance is formed without producing any discontinuities that could degrade the permeation integrity of the fuel tank. The hollow protuberance projects into a fuel chamber defined by the inner layer and has an enlarged head at its distal end. The outer layer defines a blind cavity of the hollow protuberance which substantially follows the contours of the opposite side. A female clip, independent of the fuel tank, preferably engages the protuberance about the inner layer of the shell.

Abstract: A water cooler with a drip tray in which liquid in the drip tray drains through a drain hole connected to a pump. When liquid is detected, the pump activates to pump the liquid to a remote drain. A filter at the drain hole traps overly-large particles. One filter embodiment includes a vertical rigid pipe with a plurality of side wall apertures through which the liquid drains. Another filter embodiment includes a fine mesh at the drain hole. The drip tray is covered by a removable strainer. With the first filter embodiment, the strainer includes a plug that fits into the upper opening of the filter pipe to hold the strainer in place. The electric pump is activated by a sensor that detects the presence of liquid in the inlet hose and remains on for a period after liquid is no longer detected so that the liquid is pumped the full distance to the drain.

Abstract: The invention relates to a device for selectively dispensing different liquids (I, II) from a single item of packaging containing a plurality of independent reservoirs (R1, R2), each reservoir having a drawing-off member (P1, P2) equipped with a dispensing head (11, 12) and suitable for being actuated by relative movement of said head, said device being characterized in that it comprises a central housing (1) supporting the reservoirs (R1, R2) peripherally and movably relative to the associated dispensing heads (11, 12) secured to or integral with said housing (1), and including a selective locking key (2) for selectively locking said reservoirs in positions in which they are fixed relative to said heads (11, 12).

Abstract: A food product cartridge comprising a delivery and dosage member, said cartridge having a base part wherein an endless screw and a delivery opening are housed, characterized in that the endless screw is provided to operate a shutter for opening and closing the delivery opening.

Abstract: A dispensing device for dispensing liquid from a container, the dispensing device including a main body which includes an end wall having an internal side face directed towards the interior of the container and an external side face, a dispensing outlet, and a closure moveable relative to the main body between open and closed positions to selectively open and close the dispensing outlet, a chamber between the external side face and the dispensing outlet, a liquid transfer port in the main body for permitting liquid flow from the container interior to the chamber and a breather port in the main body providing communication between the container interior and the chamber, the liquid transfer port and the breather port being spaced apart from one another so as to form a static head therebetween.

Abstract: A tool-toting device for connection to a belt to be worn about the waist of a tradesman for the purpose of carrying a tool of a type having an elongated handle and angled or transverse head portion includes a support backing associatable as part of the belt; and a tool support spring clip having a first generally horizontally disposed side-spring clip portion having a first and second end and connected to the support backing.

Abstract: A multi-functional small pouch accessory that is made of a variety of materials and has easy access to storage for keys, money, identification, etc. The pouch is compact and easy to use with its adjustability and slide-ability. The pouch has ornamentation and comes in a variety of colors and fun shapes. The pouch folds in half creating two storage pockets and has a separate third clear-windowed identification pocket visible only when in the open position. The pouch has a small hook and loop closure to secure in the closed position but still allows for quick and easy access. The pouch easily attaches and detaches to a shoelace, boot, ankle, any body part or pet with or without a separate adjustable strap, rope or chain. Two elastic loops on the back and side of the pouch, makes it possible to fit and slide the pouch along any size strap, rope or chain.

Abstract: A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having a shaft portion 30, which is inserted into the hook holding portion 20 and provided with fitting teeth 31 meshing with the engaging teeth 47, an elastic body 27 adapted to push the hook 2 against a handle portion at all times, and a slip-off preventing part holding portion adapted to move the hook 2 in a direction of an axis thereof against a force of the elastic body 2 and to cancel the mesh between the teeth to thereby enable the hook 2 to turn.

Abstract: A moveable stowage for a ladder or other equipment on top of a vehicle comprises a stowage frame and an outer frame secured pivotally at its forward end. The moveable stowage may be releasably secured in the stowed position or held in an access position. The stowage frame is adapted to slide on at least one pivot assembly from a substantially horizontal stowed position to an access position, and the forward end of the stowage frame is pivotally connected to the outer frame in order to slide along the outer frame thus enabling the stowage frame to reach an access position approaching the vertical. Other embodiments are described, which assist in counter balancing the stowage frame.

Abstract: The rack for mounting to a vehicle includes horizontal upper and lower cross members. A pair of downwardly disposed mounting posts are mounted on opposite ends of the upper cross member. Where the truck is a pickup truck having a cargo box, the posts fit downwardly into the post holes in the side walls of the pickup truck box. At least one wheel clamp assembly is mounted, at it's an upper end, to the upper cross member and mounted at its lower end to the lower cross member. Each wheel clamp assembly includes first and second opposed facing parallel vertical clamp members defining a wheel receiving space therebetween sized for snug mating on either side of a wheel disposed between the clamp members and the cross members. The clamp members each have laterally aligned apertures therethrough.

Abstract: Dispenser for rolls of a web-shaped material, such as paper, said dispenser having space for at least two rolls, at which one space is located adjacent the outlet opening (14) and is intended for a first roll in a use position and the second space is located above the first space and is intended for a roll in standby position. A lock (24, 25;27) is intended to keep the second roll in standby position. The disk plate is spring-loaded (23) and cooperates with the lock such that when a roll is located in place in the disk plate the lock (24, 25;27) prevents the standby roll from falling down.

Abstract: An explosive powder charge-operated setting tool having a drive piston (4) for driving a pin-shaped nail (5) in a constructional component in a single drive-in step, and a control circuit (I) for controlling a setting depth (T) and including control electronics (7), a set point generator (8) for setting the setting depth (T), a position-determining sensor (9) for determining a position of a lower dead point (uTP) of movement of the drive piston (4), and a regulator (10) for an automatic adjustment of a motion energy of the drive piston; and a method of controlling the setting depth (T).

Abstract: In a fastener driving tool, a retention system for a piston comprises a buffer and a set of bearings in a cage, the bearings being abutted against the buffer. The buffer provides a force urging the bearing radially inwardly toward the piston so that the bearings retain the piston in a predetermined position when the piston is not being actuated.

Abstract: A fastener driving tool is provided having a housing with an axis, the housing enclosing a piston having a driver blade, a nosepiece associated with the housing and extending in the axial direction, the nosepiece having a barrel for accepting a fastener and for axially guiding the driver blade toward impact with the fastener, a magazine associated with the nosepiece for feeding a collation strip of fasteners to the barrel of the nosepiece, and a magazine follower slidably mounted on the magazine for biasing the collation strip of fasteners toward the nosepiece, the magazine follower having a profile, and wherein the collation strip includes an extension having a profile that complements the profile of the magazine follower.

Abstract: A magazine assembly for a fastening tool. The magazine assembly includes a feed mechanism having a fastener follower that includes a cam device. The feed mechanism also includes a cam follower which is employed to engage the cam device so that fasteners may be loaded into the magazine assembly. The cam follower alternately engages and disengages the cam device in response to movement of the fastener follower relative to the cam device. The magazine assembly also includes a clamp assembly for coupling the magazine assembly to the body of a fastening tool.

Abstract: The present invention provides a tool for driving a fastener from a detachable magazine. The tool includes a tool housing having a proximal end and a distal end and a power source enclosed by the housing. A nosepiece is attached to the housing and has a channel and a first alignment structure. The magazine is removably attached to the tool and has a magazine housing and a shear block that is mounted to the proximal end of the magazine housing. There is a second alignment structure and a face on the shear block such that the channel and the face form a barrel when the first alignment structure is engaged with the second alignment structure and the magazine is removably attached to the tool. Upon firing of the tool, the fastener is propelled by the power source, through the barrel and into the workpiece.

Abstract: A fastener collation strip has pairs of vertically aligned rail-engaging members or projections which have convergent sides disposed within at least two mutually orthogonal planes such that lower and upper tip regions of the rail-engaging members or projections define point-type contacts whereby the fastener collation strips are movably supported upon the rail members of the magazine section of the fastener-driving tool. As a result of the point-type contacts, frictional forces generated between the collation strips of fasteners and the rail members of the magazine section of the fastener-driving tool are effectively reduced as much as possible whereby the conveyance or transportation of the collation strips of fasteners through the magazine section of the fastener-driving tool is effectively facilitated so as to render the conveyance or transportation of the collation strips of fasteners through the magazine section of the fastener-driving tool as smooth as possible.

Abstract: A multi-functional welding platform is disclosed. The multi-functional welding platform has a box body at a base thereof. The rear side thereof is installed with a power input end, a power regulator, a high voltage discharging plate, a power output end, etc. A lower side of the platform is installed with an air inlet space. A rear side of the space has a fan. A plurality of air inlet holes are distributed on the platform and filtering material is placed therein. Other than providing the general device for welding, harmful gas or metal smoke enters into the air inlet holes on the platform and then is filtered and then exhausted from the fan so that the operators will not breath harmful gas.

Abstract: An efficient and effective process for manufacturing of hardened aluminum components is achieved by coordinating the material preparation steps with the forming steps. The resulting product is a hardened aluminum component with desirable strength characteristics. The process includes initial heating of sheet material in order to prepare it for further processing. The sheet material is then quenched to promote appropriate material conditioning. A product forming sub-process is then undertaken in a relatively short period of time following the quenching. The product forming is done while the material is in a relatively ductile condition, thus easing forming operations, and avoiding product spring-back problems. Lastly, the component is naturally aged, to provide the final hardening operations. The resulting product has very desirable strength characteristics, due to the combined forming and hardening process.

Abstract: This invention relates to multi-sectioned file folders, and particularly to the construction of an integrally formed self sectioning file folder having at least a sectioning panel formed between a front and a rear cover. The invention provides for the self-sectioning panel as part of a pocket panel which pocket panel may be formed as a pocket on the front or rear cover of the file folder by a series of folding and a sealing operation. The invention provides for the formation of such a self-sectioning panel of “book mark” strips for separating piles of paper, formed from a single panel sectioned and continuously folded piece of material, where the book-mark array can be formed by only two folds and a sealing operation.

Abstract: An improved mailbox designed to rid bacteria and other biological germs present in contents. Designed as a mailbox for small-business or home, the mailbox has a housing assembly with an access door. Within the housing is an ultra violet and ozone generating system. At a rear section of the housing assembly is an extractor assembly, which includes an air intake, filtering system, and extraction fan. When the access door is opened, a micro-switch is triggered, activating a timer assembly. For a first predetermined amount of time, the ultra violet and ozone generating system operate to sterilize bacteria and other biological germs present in the contents, while an “unsafe” indicator is illuminated. Once that operation is complete, the extractor assembly operates for a second predetermined time. When the second predetermined time expires, a “safe” indicator illuminates, notifying a user that the contents have been sterilized for a predetermined amount of time.

Abstract: The present invention provides a method of enabling a first user to record in a computer system, using a business card of a second user, an electronic mail address of the second user, the business card including coded data indicative of the identity of the business card and of at least one reference point of the business card, the method including the steps of: receiving, in the computer system, indicating data from a sensing device regarding the identity of the business card and a position of the sensing device relative to the business card, the sensing device, when placed in an operative position relative to the business card, sensing the indicating data using at least some of the coded data; identifying, in the computer system and from the indicating data a request to record the electronic mail address of the second user; and recording, in the computer system at a location accessible to the first user, the electronic mail address of the second user.

Abstract: A customer management system and method using an LCD barcode displayed on a mobile terminal. The present invention is simply and conveniently identifies customers using commodity barcodes being widely used and customer information barcodes on cellular phones, realizing effective marketing at minimum cost according to the purchase propensities or preferences of the customers for commodities and rapidly provides the customers with a variety of commodity information and a variety of benefits based on the results of their barcode use at any place, thereby effectively managing the customers integratedly.

Abstract: An automatic teller system and a method of operating the system wherein the system can receive a personalized normal PIN or duress PIN from a user. If the user enters the duress PIN, the system determines that it is a duress PIN and actuates a silent alarm to notify authorities of the possible crime. The system will then simulate a normal transaction, perhaps with a reduced maximum withdrawal amount, so as to not alert a thief or potential thief that the alarm has been actuated, while dispensing bills marked with special ink that is visible only when viewed under special light. Also, the serial numbers of the bills dispensed under duress are recorded by the automatic teller system and automatically communicated to authorities. Under duress conditions, it is preferable that the monitoring of the ATM be enhanced.

Abstract: An electronic-money collecting system is capable of returning a lost IC card used as an ‘electronic purse’ to a legitimate owner or an issuing institution with a high degree of efficiency. When a lost IC card containing data representing electronic money is found, the finder inserts the card into a public terminal, and information read from the card is transmitted to a card center by way of a communication line. At the center, a storage unit containing identification and contact data is searched for owner contact data, and the owner of the lost IC card is notified of the implementation of processing to collect the IC card. Also, a finder is given reward money recorded in a found IC card or, when an attempt made by a finder to illegally draw money, information on the finder is recorded, allowing abuse of a found IC card to be detected early.

Abstract: A memory (1) in a non contact type IC card (100) includes a data protection region (B2) storing data requiring security and an region (B1) storing other data. A main control circuit (2) generates data to be stored and designates a location for data storage in the region (B1) or the data protection region (B2) according to a content of the data. An address non selecting circuit (4) selects whether the generated data is to be written into the location in the data protection region (B2) designated by the main control circuit (2) according to a state of a state setting circuit (3).

Abstract: A process and apparatus determines whether a person is authorized to purchase a restricted goods, such as tobacco or alcohol, or attend a restricted even, such as a strip tease act or a movie, or receive a certain discount, such as a senior discount. The person has a date of birth and a corresponding age and an identification material, such as a driver's license, having the date of birth encoded on a magnetic strip attached thereto. The date of birth is magnetically read from the magnetic strip attached to the identification material. The apparatus has a magnetic reader, a microprocessor, and a warning device. The magnetic reader reads the date of birth from the magnetic strip attached to the identification material. The microprocessor is electrically coupled to the magnetic reader and programmed to receive the date of birth read and to compute the age by comparing the date of birth to the first date. The first date is inputted into the microprocessor.

Abstract: In a machine for counting bars, for example metal bars, that are to be sent on to a packaging station which packages a pre-set number of them in bundles, the problem of precise counting of the bars is solved by using, for the conveyance of the bars to the counting station, a screw conveyor, in which each groove of the screw has a wall having a pitch increasing more rapidly as compared to the normal pitch of the screw, thus making it possible, in the case where more than one bar is present in the same groove, to render the lying plane of the bars not parallel to the specific axis of the counting means. This is obtained by providing one of the faces of the grooves either with a special step having a continuously increasing width, or with a continuously increasing inclination.

Abstract: A magnetic card reader to read magnetic cards having either a first or a second format for the magnetic data on a stripe. The reader includes a first and second format processor for first and second patterns, a format selector to select one of the two format processor in accordance with a selection or indication command from a host computer. A format determinator determines if the format read out from the card is consistent with the indicated format.

Abstract: A carrier case for accommodating paper sheets, cards or the like having radio frequency data carriers attached thereto or watermarked therein. A device is provided for reading out information from the radio frequency data carriers while eliminating the need for externally removing the paper sheets, cards or the like having the radio frequency data carriers attached thereto or watermarked therein. The carrier case is provided therein with an opening for insertion of the data reading device, and is also provided with a movable divider plate. When it is desired to read out data from the radio frequency data carriers, the divider plate is tilted so that the data reading device can read out the data from the data carriers with a good sensitivity in a relationship contacted with the radio frequency data carriers or not contacted therewith.

Abstract: The present invention provides a bar code scanning device that is compatible, in terms of communication and data, with information equipment conforming to PCMCIA standards, that is mounted in a card housing of a compact flash card size, and that has a laser beam scanning section integrated thereinto and which applies a scanning beam to an interior of the card housing through a window to obtain bar code information from light obtained when the scanning beam from the window is reflected.

Abstract: A recording medium comprises pairs of groove tracks and land tracks provided side by side while being bent periodically, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of a curvature smaller than a radius of a curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks.

Abstract: A plastic thermostat housing having a vent passage including a valve portion (46), a cap portion (48), and an outlet portion (54), with the cap portion (48) being larger in cross sectional area than the cap, portion (48). A check valve (52) is inserted into the valve portion (46) and a cap (50) with a vent hole (56) is inserted into the cap portion (48) for retaining the check valve (52) in the vent passage. The assembly is characterized by the plastic material of the housing (12) being deformed into engagement with the cap (50) for retaining the cap (50) in the valve portion (48) of the vent passage. The cap (50) may comprise a plastic material to be fused to the housing (12).

Abstract: In a convective treatment system a wind-actuated instrument mounted near an end of an air hose provides, generates, issues, or sounds an audible alarm when the end becomes disconnected from a convective device and pressurized air continues to flow through the end. The instrument may be mounted on an interface device receivable on the end. The interface device may include means for reducing or stopping the flow of air through the end in response to the disconnection.

Abstract: The present invention provides a turbo heater which utilizes a gas turbine engine and a heat exchanger assembly. The gas turbine engine is adapted to efficiently operate over a prolonged period of time and at varying power outputs without adverse or detrimental effects to the components thereof. For example, the gas turbine engine includes bearing assemblies and a fuel delivery systems which are uniquely designed for the demands of repeated cycling (i.e. starting and stopping), as well as operation at various power outputs without damage to the gas turbine engine. In addition, the use of exhaust gas from the gas turbine engine eliminates direct impingement of combustion on the heat exchanger element, thereby significantly increasing the durability and life span of the turbo heater.

Abstract: In a vehicle air conditioner, a flow control member is disposed in an inlet tank of a heating heat exchanger for heating air to be blown into a passenger compartment using a fluid as a heating source. In the heating heat exchanger, a ratio between a first area where the fluid flows, and a second area where the fluid does not flow is changed by controlling an operation position of the flow control member. Thus, a flow ratio between hot air from the first area of the heating heat exchanger and cool air from the second area thereof can be adjusted, so that the temperature of air blown into the passenger compartment can be adjusted.

Abstract: A fuel injector for fuel injection systems of internal combustion engines has an electromagnetic actuating element including a magnet coil, a tubular internal pole and an external magnetic circuit part, a valve sleeve having an internal opening and thin walls and a movable valve closing body which works together with a valve seat assigned to a valve seating body. The valve seating body and the internal pole are fixedly arranged in the internal opening in the valve sleeve . The internal pole has a longitudinal slot formed by producing it by rolling and/or bending.

Abstract: A spray sprays a liquid medicine from a spray part 30. When a liquid sensing electrode 55, 56 arranged on the spray part 30 senses the quantity of the liquid stored in a storage part 30a and determines that the quantity of the liquid decreases, a pin part 27 is driven by a solenoid 26 for feeding the liquid medicine from a liquid medicine bottle 20 to the storage part 30a of the spray part 30 through a feed pipe 25, and the feeding interval is obtained when the liquid medicine is intermittently fed for adjusting power supplied to a piezoelectric element 50 of the spray part 30 so that the feeding interval is constant. Consequently, a spray capable of automatically adjusting the quantity of spraying per unit time to a constant level for spray liquids having various properties can be provided.

Abstract: A sprayer that includes two pressurized tanks physically and fluidly coupled to each other is disclosed. One tank is inverted with respect to the other so that the top of one tank is adjacent to the bottom of the other tank, and vice versa. One tank contains a propellant such as carbon dioxide and the other contains a tear agent or other chemical irritant. The invention includes a shut-off valve adapted to regulate the flow of the chemical, and a dispensing head for accurate, controllable delivery.