Abstract: An Automatic Soundtrack Generator permits merger of a sound track that is independent of the external sound source, while either recording or playing a video sequence. The Automatic Soundtrack Generator integrates in a video recorder or player a module that generates music or other sounds which either can be mixed with the originally recorded sound (sound mixing), or can replace the originally recorded sound (sound dubbing). This sound mixing or dubbing can be performed either at video/audio record time or at play back time.

Abstract: A method for producing a large-caliber, high-explosive projectile (1, 1′), and a projectile formed according the method, having a projectile casing (2, 2′) that surrounds a chamber (6, 6′) filled with an explosive charge (9, 9′), and that has a mouth (5, 5′) at its tip that can be sealed, and through which the explosive charge (9, 9′) is inserted into the chamber (6, 6′) of the high-explosive projectile (1, 1′). The explosive charge (9, 9′) is disposed in a plastic casing (8), comprised of an elastic material, inside the chamber of the high-explosive projectile (1, 1′). Additional tensioning means (11, 11′, 17, 17′) are provided to compensate for the varying volume of the explosive charge (9, 9′) relative to the projectile casing (2, 2′) if the temperature fluctuates dramatically and maintain the explosive charge (9, 9′) under a pre-stress, particularly when using a plastic bound explosive charge (9, 9′).

Abstract: An apparatus for launching an object in a fluid environment having a tubular member with a forward muzzle end, an opposed rearward end. The object is positioned in the tubular member. Ends of the tubular member are closed by expellable members. Flood valves are located on the expellable members and, on activation, allow flooding of the tubular member by external fluid. A propellant device and an object contact member are disposed within the tubular member. When the propellant device is activated, the object contact member moves the object. These actions are controlled by a control device which first causes the flood valves to enable fluid to flood the interior region. Next, the control device causes the expellable members to be expelled from the tubular member. The control device then causes the propellant device to generate gas in a predetermined manner launching the object from the tubular member.

Abstract: A weapon using a barrel through which a projectile travels being propelled through the use of gas expansion. An expansion chamber communicates with the barrel and is “plugged” using a projectile. The expansion chamber is filled with a gas. In the preferred embodiment, the projectile has a collar which seals the opening between the expansion chamber and the barrel. Once the expansion chamber is filled with a gas, the gas is rapidly expanded, thereby forcing the projectile to be propelled through said barrel. In the preferred embodiment, the gas includes a combustible hydrocarbon; in other embodiments, the gas is expanded by thermal means using a high voltage electrical arc.

Abstract: Pistons (41) are slidably received in a plurality of cylinders (39) disposed radially in a rotor (31), and a plurality of vanes (42) cooperating with the pistons (41) are disposed radially in the rotor (31), so that a vane chamber (54) is defined between a pair of the adjacent vanes (42). The radial movements of each of the pistons (41) and each of the vanes (42) are substantially stopped, so that the volumes of each of the cylinders (39) and each of the vane chambers (54) are not changed, for a period from the end of an exhaust stroke at which a gas-phase working medium is discharged from the cylinder (39) and the vane chamber (54) to the start of an intake stroke at which the supplying of the gas-phase working medium is started. Thus, it is possible to prevent the generation of a water hammer phenomenon due to a liquid-phase working medium confined in the cylinder (39) and the vane chamber (54).

Abstract: In a rotary fluid machine for converting the reciprocal movement of pistons (41) and the rotational movement of a rotor (31) from one into another by the engagement of rollers (59) and annular grooves (60) with each other, a value in a positive peak region of a pressure load of pistons (41) received by the rollers (59) engaged in the annular grooves (60) and a value of a positive peak region of a centrifugal force load received by the rollers (59) are set, so that they are substantially equal to each other, and phases of the two peak regions are deviated from each other. In addition, the phase of a negative peak region of a vane (42) pushing-down load received by the rollers (59) and the phase of the positive peak region of the pressure load of the pistons (41) received by said rollers (59) are established, so that they are overlapped at least partially on each other.

Abstract: An arrangement for axially variably mounting a magnetic field sensor in a guide groove arranged on the exterior of an operating cylinder in which a piston reciprocates. The groove is longitudinally slitted and the sensor has a generally elliptical cross-section which is dimensioned so that the sensor can be inserted into the groove through the slit. By turning the sensor about its longitudinal axis, it becomes restrained to the groove while permitting sliding movement of the sensor over the length of the groove. A screw with an oval head is threaded into the sensor, is disposed inside the groove, and upon turning it the head of the groove engages interior shoulders extending along both sides of the slit. By turning the screw so that the head engages the shoulder, the sensor becomes clamped and thereby fixedly positioned at the desired location along the groove.

Abstract: A particulate filter system is provided including an exhaust system transporting emissions from an engine. A filter such as a diesel particulate filter is disposed in the exhaust system. An acoustic sensor is associated with the exhaust system for detecting one or more frequencies passing through the filter. The frequency corresponds to a filter state indicative of a clean, full, loading, or failed filter. One or more acoustic sensors may fluidly or mechanically coupled to portions of the exhaust system to determine the frequency caused by the exhaust flow through the filter. The acoustic emissions from the filter may be used to compare to a known filter state to determine the present filter state. Alternatively, more sophisticated mathematical approaches may be used in which processed filter information is compared to a known filter state to determine the present filter state.

Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.

Abstract: The trend in personal and light commercial transportation vehicle choices is heading toward electric or fuel cell vehicles capable of zero emission. Their demand for electricity to re-charge batteries or hydrogen to operate fuel cells can best be met by onsite production of electricity and hydrogen from conventional transportation fuel by an on-site energy supply system employing a conversion device. This approach can result in minimum changes in the present day infrastructure of the automobile and truck service station industry and can avoid any disturbances to the normal operation of the electric power industry. The onsite hydrogen/electricity hybrid conversion device is a reformer and/or a fuel cell. The output of the system can be varied to either meet the demand of hydrogen fuel for fuel cell vehicles or to provide electricity for charging batteries used on the electrical vehicles.

Abstract: An improved apparatus and method for use with a natural gas dehydrator. The apparatus and method of the invention provide for recirculation of gaseous or combustible materials so that they are not released into the atmosphere and to provide fuel for the process. Likewise, liquid hydrocarbons are collected. Various components, including separators, an absorber, wet glycol, dry glycol, an effluent condenser, heat exchangers, and a reboiler are utilized in accordance with the present invention.

Abstract: An onboard hydrogen storage unit with heat transfer system for a hydrogen powered vehicle. The system includes a hydrogen storage vessel containing a hydrogen storage alloy configured to receive a stream of hydrogen and provide hydrogen for use in powering a vehicle. During refueling a cooling/heating loop is used to remove the heat of hydride formation from the hydrogen storage alloy and during operation of the vehicle the heating/cooling loop is used to supply heat to the hydrogen storage alloy to aid in hydrogen desorption.

Abstract: The invention relates to a device (1) for the separation of air out of a waste water mixture, in particular such a waste water mixture as arises at a medical or dental-medical treatment station, having a housing (2) which has a round cross-sectional form in horizontal cross-section, an inlet (3) for the waste water mixture which tangentially opens into the housing (2), a first outlet (4) for air, arranged above the inlet (3), and a second outlet (5) for heavy materials, such as waste water, arranged below the inlet (3). For the purpose of improving the separation function, the inlet (3) is arranged in the region of a hollow cone shaped peripheral wall section (6) of the housing (2), which section is downwardly divergent.

Abstract: The invention relates to the food industry. In order to reduce sales expenses and preserve the taste of beer, the inventive device is provided by i-number communication units, necessary for operational connection and disconnection of i-number units for after-fermentation, and each of i-number units for after-fermentation is embodied in such a way so that it is transportable, thermally insulated, hermetic, protected from deposited yeast mixing with non-filtrated beer while transportation and can be connected to a cooling system, arranged at a point of sale and/or dispense.

Abstract: This invention relates to an apparatus for preparing a coffee extract with a fine-bubble froth layer, provided with at least one inlet (2) to which coffee extract is supplied, at least one outlet (4.1; 4.2) for dispensing the coffee extract with the fine-bubble froth layer and at least one liquid flow path extending from the at least one inlet (2) to the at least one outlet (4.1; 4.2) and along which, in use, the coffee extract flows from the at least one inlet (2) to the at least one outlet (4.1; 4.2) while in the liquid flow path a liquid impact surface (12) is included and the at least one inlet is provided with at least one spout opening for generating at least one coffee extract jet which, in use, squirts to the liquid impact surface when the coffee extract is supplied to the at least one inlet. According to the invention, the impact surface (12) is provided with a roughened surface structure.

Abstract: Percolating device, for example intended to equip a coffee machine, comprising a percolating chamber mounted in such a way that it can carry out a displacement in the vertical direction when a control handle is operated. A cap receiving a capsule of product to be infused is also displaced, when the handle is operated, towards the inside of the percolating chamber. A percolating head sliding freely inside the percolating chamber can occupy different relative positions inside the percolating chamber according to the size of the capsule loaded into the cap. A stop device makes it possible to lock the percolating head in a definite position in order to inject steam and/or water through the percolating head.

Abstract: A beverage apparatus (10) having a liquid holding member (12,14,16) with an operating apparatus (42) for performing a particular function, such as heating water to make a beverage, is selectively connected through an electronic switching device (36) to a source of electrical power (40) that is mounted to the liquid holding member (12,14, 16) to convey heat away from the electronic switching device (36) and into the liquid. A radiating heat sink with radiating member (45,47) protects the switching device against potential damaging physical contact is also connected to the switching device (36) and radiates heat generated by the device into the atmosphere for additional cooling of the switching device (36).

Abstract: A device for frying food products in fat under vacuum conditions includes a rotating vacuum chamber for centrifuging the product after frying. The centrifuged product is directed through a valve in the bottom of the vacuum chamber to a slice structure, and subsequently is subjected to atmospheric pressure.

Abstract: Processing apparatus and method for animal products include multiple successive immersions in sanitizing solutions at different successive temperatures within controlled environments including at fluid pressures different from ambient pressure to reduce resident microbial contaminants in preparation for packaging and retail distribution.

Abstract: The machine is operable for continuously extracting moisture or dehydrating food. A plurality of food tray are insertable into a main chamber having an air diffuser mounted on one side and an air collector on the opposite side. Air is drawn through the chamber by a blower. Heat is applied to the food by heater element incorporated at the underside of the food trays. Dampers are located at the air inlet and air exhaust ducts, which may be monitored and adjusted by temperature and moisture sensors for maintaining a selected temperature and moisture condition to extract the moisture content of the food to a desirable condition. The processed food may be retrieved from the machine while a new tray of food is being placed into the chamber.

Abstract: A food preparation station for use on top of a counter. The food preparation station includes a flat work area. On a front edge of the work area is an anchoring ledge. On an opposite rear portion of the work area is a retaining device for holding a cooking utensil, such as a rolling pin. The work area includes a nonskid material affixed to a bottom surface of the work area for preventing slippage of the food preparation station on top of the counter. The preparation station is positioned on top of the counter with the rear portion of the work area abutting a rear wall lying perpendicular to the counter. The preparation station is anchored to the counter by the anchoring ledge being positioned against a front counter edge. The preparation station is preferably constructed of stainless steel.

Abstract: The invention relates to a device for deboning meat slabs for cutlets. The inventive device comprises a base plate (5) and a lateral guiding plate (8) for the meat slab, said base plate (5) and lateral guiding plate (8) forming a removable elbow element (20).

Abstract: A page stacking and binding system has a support tray for receiving pages to be stacked, including a support surface; a drive system arranged so as to direct pages into the support tray, a vibrator interacting with the tray and a press device adapted to apply a compressive force to the stack of pages.

Abstract: A large round baler includes a discharge or outlet gate mounted for swinging vertically about a horizontal transverse axis located approximately at the center of a baling chamber. In one of several variations, two hydraulic cylinders, that are arranged offset to each other, engage the outlet gate at various radial positions, so that both actuating devices cannot simultaneously reach a dead center or a blocking position.

Abstract: A mobile metal crushing system and a method for forming scrap metal bails by crushing automobiles and scrap metal latitudinally, vertically, and longitudinally. The crusher has a frame with wheels and a bailing chamber with a bottom deck, a load door for latitudinal crushing, a crush plate for vertical crushing, and a wall. The wall has a plunger for longitudinal crushing.

Abstract: The present invention provides methods for producing a seamless embossing shim. The shim carries a pattern to be embossed on a decorative medium, such that the image on the decorative medium contains no production seams. The methods comprise several steps. First, the a flat shim is casted onto a plastic cylinder to form a plastic master with the pattern on the outer surface to form a plastic master. Second, the plastic master is used to produce a metal master by depositing a layer of metal on the outer surface of the plastic master. Lastly, the metal master is then used to formed the seamless embossing shim by depositing a layer of metal on the inner surface of the metal master.

Abstract: A rotary press to print patterns on support strips includes a drive for driving the support strip lengthwise at a defined speed; a supply for strip material of the patterns to be applied to the strip located laterally to the lengthwise drive and direction of the support strip; a transfer device for transferring the patterns from the strip material to defined locations on the strip; another drive for driving the strip material through the transfer device intermittently with the defined speed of the support strip. Strip material reorientation elements are arranged along the path of the strip material to modify its direction from transverse to the support strip to the same direction thereof and to deliver the support strip material and the support strip to a transfer device where transfer occurs. Various length and speed controls associated with the strip material deliver the same to the transfer section at a selected speed.

Abstract: It is an object of the invention to provide a method for forming printing inspection data in which the use of a mask plate makes it possible to simply and efficiently form the inspecting data.

Abstract: A mountable cylindrical printing blanket apparatus for use with an off-set printing press is provided. The printing blanket has an inner carrier sleeve layer; a printing blanket affixed to the sleeve with at least one compressible layer having a first porosity, at least one printing face layer, a gap extending axially along the mountable printing blanket and having between about 0.2 millimeters and about 2 millimeters in width and a depth substantially extending through at least one layer; and a compressible sealant therein in an amount sufficient to substantially fill the gap. The compressible sealant has a second porosity and a compressibility in both the radial and the tangential direction such that the compressible sealant has a compressibility greater than the compressibility of the compressible layer.

Abstract: A presensitized lithographic printing plate comprises a hydrophilic support and an image-forming layer. The image-forming layer contains microcapsules. The microcapsules consist of a shell and a core. The shell comprises a polymer. The polymer has a decomposition temperature in the range of 150 to 280° C. The core comprises a polymerizable compound.

Abstract: An object of the present invention is to provide a method for manufacturing such a dry lithographic printing master plate that has eliminated uneven plate performance and more specifically that provides a stable adhesiveness between a heat-sensitive layer and a silicone rubber layer as well as a high aging stability of a coating solution. Provided is a method for preparing a master plate useful for making a dry lithographic printing plate comprising at least a heat-sensitive layer and a silicone rubber layer which are stacked in this order on a substrate, said method comprising the steps of: (1) dissolving a diorgano-polysiloxane and a curing catalyst in a solvent; (2) dissolving a cross-linking agent in a solvent; (3) mixing the solution obtained in the step (1) with the solution obtained in the step (2); and (4) applying the mixture obtained in the step (3) over the heat-sensitive layer to thereby form the silicone rubber layer.

Abstract: The present invention features various systems and methods for providing an image on an organic product to provide a communication to the recipient or otherwise individualize the organic product. Notably, the present invention features an organic product printing system comprising at least one organic product; a support structure that secures one or more organic products therein for printing upon them, wherein the support structure comprises a stabilizer bar for supporting one or more printing assemblies; and at least one printing assembly supported within the support structure, wherein the printing assembly comprises a printing device that prints an image onto the organic product.

Abstract: The present invention is a signal transmission system (10) that can receive a non-electric input signal such as a mechanical shock, detonation, or pyrotechnic signal at an input terminus (12), convert that signal to an electrical signal, and convey the electrical signal to at least one output terminus (16a, 16b) at a remote location where the signal is converted to a non-electric output. To convert the non-electric input signal to an electrical signal, the input terminus (12) comprises a receiving transducer e.g., a piezoelectric, electrochemical, or photovoltaic element. The input terminus (12) is connected by transfer wiring (14) (e.g., an electrical wire harness or a flex cable) to the remote location, where it is received by the at least one output terminus (16a, 16b) and there converted to a non-electric signal that is used for a desired function.

Abstract: A tamping machine for tamping ballast underneath track ties includes a machine frame extending in a longitudinal direction and supported on the track by two undercarriages. Arranged between the undercarriages is a sub-frame which is supported on the track by a further undercarriage with a unit motive drive and connected to the machine frame by a frame support for displacement relative thereto in the longitudinal direction. A tamping unit and a track lifting unit are arranged on the sub-frame between the further undercarriage and the frame support. Operation of the unit motive drive to displace the sub-frame is assisted by an acceleration drive which is rigidly connected to the machine frame and has a piston end with a bracing plunger provided for temporary application to the sub-frame. A maximum stroke of the acceleration drive is shorter than a maximum displacement path of the sub-frame relative to the machine frame.

Abstract: A coring arrangement for casting a railcar bolster, including left and right half center cores having faces defining internal surfaces of each of the bolster top, bottom, and opposing side walls from the bolster central transverse plane to a point between the left and right friction shoe pocket inner and outer walls. The coring arrangement also includes left and right top half end cores having faces defining an internal surface of the bolster top wall, and of each opposing side wall from a point between the left and right friction shoe pocket inner and outer walls to the ends of the bolster. Left and right bottom half end cores have faces defining an internal surface of the bolster bottom wall, and of each opposing side wall from a point between the left and right friction shoe pocket inner and outer walls to the ends of the bolster.

Abstract: An activated silicon-containing aluminum complex flame-proofing agent containing minor amounts of halogen, silicon, oxygen and hydrogen. The silicon being present in amounts of at least trace and having a hexagonal structure; the ratio oxygen to hydrogen in the complex usually being 16:18 and the process for making such complex comprises the steps of treating substantial pure aluminum with acid, then with mercury, then with a halogen acid again to form a slurry. The slurry is then applied on paper, paper pulp, cellulose pulp, plywood, clothing, textiles and any structural porous material for flame-proofing same. Coincidentally, when applied to certain toxic compounds and complexes in a certain way, it renders them non-toxic.

Abstract: An activated silicon-containing aluminum complex explosion and flame-proofing agent containing minor amounts of hydrogen, silicon, oxygen and hydrogen, the silicon being present in amounts of at least trace and having a hexagonal structure; the ratio oxygen and hydrogen in the complex usually being 16:18 and the process for making such complex comprises the steps of treating substantially pure aluminum with acid, then with mercury, then with a halogen acid again to form a slurry. The same slurry is then treated with liquid oxygen and changing the oxygen-hydrogen ratio to 20:18. The same slurry is then dried to crystalline form which, when diluted and added to flammable liquids, like alcohol, acetone, gasoline, petroleum-products, jet-fuel etc., make them explosion and flameproof. If diluted in the required proportion and applied on paper, paper pulp, cellulose pulp, plywood, clothing, textiles and any structurally porous material, it makes them flameproof.

Abstract: A solution for forming a fire resistant coating on substrates such as timber comprises an aqueous solution of an alkali metal silicate containing from about 5 to about 70% by weight of the alkali metal silicate and having dispersed therein a filer in an amount of from about 5 to about 60%. The filler is preferably an intumescent material such as a graphite capable of exfoliation. The solution may be applied by brushing or spraying onto timber in a mine to form coatings from 1 to 4 mm in thickness.

Abstract: A water base ink for ink-jet recording comprises water, a coloring agent, a water-soluble organic solvent, and a benzotriazole-based metal-inactivating agent and alkanolamine. When the ink is used in an ink-jet recording apparatus which has the metal member containing nickel or nickel alloy in an ink supply passage, nickel is eluted from the metal member in an amount of not more than 50 ppm. The ink makes it possible to perform stable jetting operation for a long term without causing any deterioration of metal members of a discharge head due to the metallic corrosion and the elution of nickel into the ink.

Abstract: In an ink composition used for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that begins to be condensation-polymerized as the water evaporates, a condensation-polymerization accelerating agent for accelerating the condensation-polymerization of the water-soluble substance is further contained,

Abstract: An ink for ink-jet recording is provided, which makes it possible to obtain vivid recorded matters by satisfying both of the prevention of the feathering and the prevention of the bleeding even when the recording is performed on regular paper. The ink for ink-jet recording contains a self-dispersing type microparticulate coloring agent, a surfactant, and water. When the surface tension is plotted in the vertical axis, and the concentration of the surfactant is plotted in the horizontal axis, then the correlation between the surface tension and the concentration of the surfactant can be represented by a correlation curve which has one inflection point and which has two local maximum points of curvature on both sides of the inflection point one by one. Further, the ink for ink-jet recording contains the surfactant at a concentration which is higher than a concentration corresponding to the local maximum point of the curvature on the low concentration side.

Abstract: A calcium phosphate cement suitable for use in dental and bone prosthesis is disclosed, which include calcium phosphate particles having a diameter of 0.05 to 100 microns, wherein said calcium phosphate particles on their surfaces have whiskers or fine crystals having a width ranging from 1 to 100 nm and a length ranging from 1 to 1000 nm.

Abstract: The present invention refers to a mixture comprising alpha CaSO4×½H2O, CaSO4×2H2O, a combination of a hardening accelerator, a hardening retarder and a setting expansion inhibitor, and optionally a surfactant.

Abstract: A control structure of supporting foot for collapsible furniture comprises a base having a rotation shaft fixed on a supporting foot. A concave hole is formed in the base and an extension shaft of the rotation shaft is combined with a spring and a sleeve. When the supporting foot is rotated to a predetermined position where the sleeve aims exactly at the concave hole of the base, the sleeve is pushed into the hole by the spring to fix and unfold the supporting foot. On the contrary, when the sleeve is pulled out of the hole, the supporting foot is free flow for getting folded and closed together with the furniture body by relative rotation.

Abstract: A self-adjusting, dynamic floating fixture for ultrasonic welding having a base, a nest assembly for supporting a part to be welded, and a plurality of bearing assemblies operably disposed between the base and the nest assembly to permit the nest assembly to move relative to the base to minimize marking and flash damage to the part to be welded.

Abstract: A gasification system that includes a gasification reactor chamber having perforated conduits or an inner lining that increases the exposed surface area of waste materials to gasification conditions, thereby decreasing gasification temperature, time, and cooling period between subsequent gasification procedures. After an aspirator withdraws and oxidizes fuel gas from the gasification reactor chamber, a flare assembly combusts the mixed fuel gas to provide power or heat to at least one heat recovery device. The at least one heat recovery device recaptures thermal energy entrained in the exhaust, thereby reducing exhaust temperature and eliminating the need for an exhaust stack. An absorber purifies the exhaust and an extractor removes carbon dioxide. A portion of the removed carbon dioxide may be used for industrial purposes or for supporting vegetation. At least a portion of the remaining exhaust is returned to the gasification reactor chamber as recycled process gas, thereby completing a closed-loop system.

Abstract: A method and system for feeding and burning pulverized fuel, such as petroleum coke, in a glass melting furnace, which includes a glass melting and a plurality of burners associated with a pair of sealed regenerative chambers disposed side-by-side which act as heat exchangers, the burners are arranged in a series of ports that are associated with the glass melting region of the furnace. The system includes means for supplying the pulverized fuel by each one of the burners for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx and particulates.

Abstract: A bobbin basket for use with a lock-stitch sewing machine. The bobbin basket defines a receptacle for a thread-carrying bobbin case. The bobbin basket has a wall extending around a central axis and a rib projecting radially from the wall for reception in a raceway of a rotary loop taker, to which the bobbin basket can be operably connected. The bobbin basket is molded from a TORLON®-based material commercially sold under the designation PXM01017.

Abstract: A substantially U-shaped front bumper as seen in a plan view is mounted on a gunnel at a front end of the watercraft so as to partially cover the gunnel. The front bumper has a base portion attached to the gunnel, and an extending portion extending upwardly from the base portion so as to partially cover a streamlined surface of a deck. The base portion is provided with right and left concave portions extending in the lateral direction of the body. The extending portion is provided with a concave portion extending from one end to the other end in the lateral direction.

Abstract: A personal watercraft tri-hull system for improving stability and handling of a personal watercraft at relatively high velocities. The personal watercraft tri-hull system includes a center hull, a first wing and a second wing extending from opposing sides of the center hull, a first hull connected to the distal portion of the first wing and a second hull connected to the distal portion of the second wing. The first hull and the second hull are preferably positioned within the forward portion of the personal watercraft tri-hull system for providing increased stability during high velocity travel. The first hull and second hull include a first inner portion and a second inner portion respectively which are angled inwardly to provide deceleration when the personal watercraft velocity is reduced.