Abstract: A fuel injector nozzle has a housing defining a blind bore with at least one fuel injection spray orifice defined at a bottom portion of a spray tip and a guide passage defined at a top portion of the bore. An injection chamber of the bore is disposed between the orifice and the guide passage. A fuel injection passage intersects the guide passage. A needle check is slidably disposed in the blind bore for movement between a first position and a second position. In the first position, a seat portion of the check is disposed in the bore against the bottom portion of the tip while a guide portion of the check together with the guide passage define a first flow area restricting fluid flow therethrough. In the second position, the seat portion of the check is spaced from the bottom portion of the tip, and the guide portion and guide passage define a second flow area larger than the first flow area and less restrictive of flow therepast.

Abstract: An apparatus for conditioning and dispensing a mixture of wet and dry insulation material is provided. The apparatus includes a hopper with a partition disposed in the hopper so as to define a wet material receiving compartment and a dry material receiving compartment. A plurality of shafts are rotatably and longitudinally supported in the hopper. The shafts are provided with helically arranged spikes which serve to incorporate the wet and dry insulation material together, as well as condition the insulation material. A lower shaft acts to convey the wet insulation material to an air lock while a pair of upper shafts function to incorporate the dry insulation material into the wet insulation material at various points.

Abstract: A portable fire-fighting container is comprised of a box with a top opening and compartments on its sides. A liquid receptacle is positioned inside the box under the top opening thereof. An interior liner is positioned inside the liquid receptacle. An open top of the liquid receptacle is covered with a removable lid. Sling attachments arranged around the box enable the container to be airlifted by a helicopter. The lid is removed and positioned vertically on top of the box to provide directional stability in flight. When placed at a fire location, leveling jacks around the box provide stability on uneven ground. Trapezoidal frames are hinged along the edges of the top opening of the box. The frames are pivoted upward and supported at an acute angle by braces extending between the frames and the top of the box, thus forming an inverted truncated pyramid.

Abstract: The present invention relates to an apparatus designed to apply cleaning fluids to all types of surfaces and to apply those fluids to vertical, horizontal, angled, and overhead surfaces. The apparatus is designed so that it is able to glide easily over uneven or irregular surfaces. This is possible, in part, because the section of the washing apparatus that dispenses the cleaning fluid is kept in a spaced relationship to the surface being cleaned by the pressure of the cleaning fluid. The apparatus of the present invention includes a spraying unit, a support assembly and a bottom control unit. The spraying unit includes a housing, a swivel, and a spray bar having nozzles rotatably connected the housing. The support assembly includes an adjustable pole hingedly connected to the spraying unit at one end. The bottom control unit includes a base that is hingedly connected to the pole at its other end. At least one high pressure fluid line is connected to the spray bar.

Abstract: A liquid dispenser comprises a pumping assembly attached to a liquid storage container. The pumping assembly includes an outlet port for dispersing liquid from the container. The outlet port includes a plurality of channels that communicate with a plurality of orifices through which a liquid is dispensed to an exterior of the storage container. The orifices arranged are in two series of concentric rings.

Abstract: A fire suppression method and apparatus has a sprinkler head support bracket which is installable immediately above a ceiling tile. The support bracket is configured with a plurality of openings such that multiple locations for the sprinkler head may be used and the exact "center of tile" installation of the sprinkler head can be accomplished with a wide variety of suspended ceiling assemblies and sprinkler heads. The support bracket rests on grid support members and arches over the ceiling tile. Hold down clips are provided to maintain the bracket in position relative to the grid support members. A pipe clamp is provided which is insertable within the bracket to retain a drop nipple within it. The drop nipple is adjustable relative to the horizontal to move it upwardly or downwardly relative to the ceiling tile. In this fashion, the vertical location of the sprinkler head can be adjusted depending upon the elevation of the ceiling tiles used and the style of sprinkler head used.

Abstract: An actuator is provided for a check valve, having particular utility in a dry fire control system. The check valve is responsive to a drop in the system air pressure occasioned by opening of one or more sprinkler heads in the fire control system. The movement of the actuator to its open position, establishes a water drain line therethrough, while advantageously also opening a previously sealed vent outlet for the pressurized air within the actuator. The seal for the vent outlet may be manually adjustable to compensate for manufacturing tolerances. The actuator may respond to either the magnitude of system air pressure drop, or the rate of system air pressure drop.

Abstract: An orifice for a pressure-type flow rate controller, which can be produced by a simple method at a low cost, that provides a linearity--between the pressure P1 on the upstream side of the orifice and the flow rate--over a wide range of the pressure ratio P2/P1 of the pressure P2 on the downstream side of the orifice to the upstream pressure P1 and that permits adjustment with ease of flow characteristics among a plurality of orifices. The orifice comprises an inlet taper 1 in the shape of a bugle and a short narrowed straight section 2 adjoining the inlet taper 1, both formed by cutting one opening end of a preliminary hole 6 made in an orifice plate D, and further comprises a short inner taper 3 and an enlarged straight section 4 connecting with the taper 3 which are formed by enlarging the preliminary hole 6 at the other opening end, the short inner taper 3 adjoining the narrowed straight section 2 on one side and neighboring the enlarged straight section 4 on the other side.

Abstract: A power washer wand has a loop or helix which balances the forces of the water stream. By balancing these forces, the back pressure is greatly reduced. This results in less fatigue for the user and also enables the wand to be extended in order to reach high or distant surfaces without the use of a ladder or scaffold. The wand may also include a universal joint. This joint allows the angle between the wand nozzle or tip and the surface being washed to remain substantially constant. The wand may be longer than conventional wands and may be connected to an extension.

Abstract: In accordance with the present invention, there is provided a balanced high volume, low pressure paint spray gun. The spray gun is provided with a spray gun body connectable to a paint source and an air source. The spray gun is provided with a head insert engaged with the spray gun body. The head insert has a paint atomization chamber formed therein, a paint passage formed therethrough extending into the paint atomization chamber for receiving paint from the paint source, an atomization air passage and a shaping air passage for receiving air flow from the air source therethrough, and a balancing air passage formed therein extending into the paint atomization chamber. The spray gun further has a shaping air chamber defined by the spray gun body.

Abstract: A harness assembly for assisting a user in transporting a fire hose includes an adjustable strap assembly secured to a chest plate. The device is secured to a wearer with the chest plate positioned on the chest and abdomen. Attached to the chest plate is a nozzle assembly including a manifold portion that is disposed adjacent the wearer's side which may be coupled with the outlet of a fire hose. The nozzle assembly further includes an intermediate section perpendicularly extending from the manifold portion and a dispensing portion perpendicularly extending from the intermediate section and away from the user. The dispensing portion includes a water control valve, a clip for attaching the nozzle assembly to the chest plate and a pair of diametrically opposed handles which may be grasped by a user. The unique design of the nozzle assembly allows a user to maintain the hose at his or her side while being able to dispense water therefrom at a point directly in front of the user for enhanced control.

Abstract: This invention relates to an improved pouring spout of the type of ones which are detachably connected to a filling container for transferring liquid in a receiving container. These kind of pouring spout include an inlet tube for receiving liquid from the filling container, and an outlet tube telescopically mounted to slide onto the inlet tube for guiding liquid therefrom into the receiving container. The spout also comprises a liquid valve which opens and closes automatically upon sliding of the outlet tube. The current invention further comprises an air passage and an air valve for regulating an air flow inside the spout from the receiving container into the receiving container, such that the flow of liquid inside the spout stops automatically when the receiving container is full, thereby avoiding spillage of liquid. The pouring spout of the invention also resolve the problem of emanations related to the transfer of dangerous volatile and highly inflammable liquid.

Abstract: The foam based product solution delivery apparatus is simple in structure and operation and makes use of pressurized gas to power a pressure operated pump to draw the water/foam-concentrate/product(s) from supply tank(s) and propel the resultant solution (foam fluid), with pressurized gas injected therein, through an agitation apparatus that mechanically agitates the water/foam/product(s) solution to create the foam based product solution for transmission to the foam delivery apparatus. Interposed in the delivery apparatus between the pump and the outlet end of the hose, the agitation apparatus functions to significantly increase the foam expansion prior to delivery of the foam through the delivery apparatus. The agitation apparatus comprises an exterior housing inside of which is mounted a set of motionless mixing blades that function to mix and expand the foam.

Abstract: A trampoline sprinkler system is provided including an elongated tube constructed from a water impermeable, flexible, collapsible material. The tube preferably has a uniform circular cross-section along an entire length thereof. The elongated tube is configured to define a pair of discrete closed ends, an inner periphery, an outer periphery, an upper apex, and a lower apex. The elongated tube further has at least one row of apertures formed between the inner periphery and the upper apex of the tube along the entire length thereof. Next provided is a linear coupling pipe mounted on the tube for coupling with a water source, wherein water is sprayed upwardly and inwardly with respect to the elongated tube.

Abstract: A sprayer can convert the entire manual effort used to operate a manual pump into energy for spraying liquid. The sprayer has a liquid tank filled with a liquid, and an air tank having a pressurized air supply valve through which pressurized air can be introduced into the air tank. The air tank communicates with a float valve having a valve hole communicating with a spray nozzle and a hollow rod as the outlet of a manual pump. Pressurized air is introduced into the air tank through the pressurized air supply valve to increase the air pressure in the tank to a predetermined bias pressure. Then, the manual pump is operated to suck liquid in the liquid tank and supply the thus sucked liquid through the float valve into the air tank.

Abstract: A device mountable on a material container for dispensing fluid or pasty material therefrom is disclosed. The device comprises a first pump (10) for selectively dispensing the material from the container through an outlet (31), said first pump being mountable on the container by means of an attachment member (11), and a manual actuation member (30) movable between an inoperative position and an actuated position. The device further comprises a second pump (20) for dispensing compressed air at the same time as the material is dispensed. The second pump comprises two elements (21, 22), i.e. a plunger (21) and a pump cylinder (22) slidably housing the plunger (21), and is designed to feed a flow of compressed air to the outlet (31) in order to spray the material. One of said two elements (21, 22) of said second pump (20) is secured to said attachment member (11) of the first pump (10), whereas the other of said two elements (21, 22) is secured to the actuation member (30).

Abstract: A piezoelectric actuator is disclosed, wherein a superposing pulse is generated just after a command pulse falls to thereby reduce oscillations of displacement in piezoelectric elements. In the piezoelectric actuator, an exciting pulse having a preselected pulse width is applied across terminals of the piezoelectric elements to cause strains in dimension for the piezoelectric elements. A pulse is superposed such that it is superposed at a timing a at which the exciting pulse is turned on, and then the exciting pulse is once turned off for a minute length of time, or an interval between b and b', and turned on again at c. The pulse to be superposed is supplied with a timing less than one-fourth a period of an oscillation of the piezoelectric elements. The piezoelectric actuator is effective to prevent the resonance phenomenon and preferably employed for the fuel-injection apparatus.

Abstract: The colliding-jet nozzle which includes a nozzle body portion having a proximal end, a distal end and a fluid inlet defined partially therethrough. The body portion also includes first and second outlet ports disposed through the nozzle body portion for directing fluid from the inlet outwardly therefrom. A proximal end of a first hollow tube is attached and in fluid communication with the first outlet port and a distal end of the first hollow tube extends outwardly therefrom. A first end of a second hollow tube is attached and in fluid communication with the second outlet port and a second end of the second hollow tube is axially aligned with the distal end of the first hollow tube to define a gap therebetween such that fluid exiting from the first outlet port and fluid exiting from the second outlet port directly collide with each other to atomize fluid.

Abstract: An injection valve is described, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, with a valve body having a valve opening surrounded by a valve seat to form a spray opening, and with a valve needle which is pressed into its closed position, has a closing head and extends through the valve opening so that the closing head which works together with the valve seat is in contact with the valve seat on the spray side when the valve is closed.

Abstract: An aerosol device for dispensing texture material for matching existing accoustical ceiling texture. The device comprises a container, a valve assembly, a dispensing nozzle, a hardenable material, and pressurized inert gas as a propelling mechanism. The hardenable material and pressurized inert gas are placed into the container. When the valve assembly is opened, the the inert gas forces the hardenable material out of the container through the dispensing nozzle. The dispensing nozzle diverts at least a portion of the hardenable material exiting the container to develop a spray suitable for the application of the hardenable material onto the ceiling surface being textured. The hardenable material preferably comprises at least water, filler, binder, and polystyrene particles. The inert gas is preferably nitrogen.