Abstract: An electrically conductive plastic (ECP) material can be used to heat water in a reservoir of a respiratory humidifier to encourage heating and/or humidification of gases passing through the respiratory humidifier. The electrically conductive plastic material can at least in part overmould the base and/or walls of the chamber and/or the reservoir of the respiratory humidifier. The reservoir can also partially or fully be formed from the electrically conductive plastic material.

Abstract: Various embodiments concern a handheld paint sprayer for spraying a paint. The sprayer can comprise a shell body comprising a door that, when opened, exposes an opening into an interior of the shell body, the door configured to close over the opening. The sprayer can further comprise a trigger connected to a handle, a motor in the interior, and a paint reservoir connected to the shell body. The sprayer can further comprise a nozzle in fluid communication with the reservoir and a pump located in the interior of the shell body. The pump is operated by the motor, the pump configured to pump the paint from the reservoir out of the nozzle as a spray. The pump is removable from the interior of the shell body through the opening when the door is opened but is not removable through the opening when the door is closed.

Abstract: Provided is a humidification and air cleaning apparatus. The humidification and air cleaning apparatus includes: a water tank storing water; a watering housing disposed in the water tank and suctioning water stored in the water tank to spray suctioned water to the outside; a watering motor providing a torque to the watering housing; a watering groove protruding inside the watering housing, suctioning water of the water tank into the watering housing when rotating, and pumping the suctioned water to an upper side of the watering housing; a nozzle disposed in the watering housing and spraying the upwardly pumped water to the outside of the watering housing; and a water curtain preventing rib disposed inside the watering housing, disposed over the watering groove, and mutually interfering with the pumped water.

Abstract: A pump-fan assembly of an air modification device may include a fan, a pump and a disk. The fan may include a central hub disposed on a top surface of the disk, and a plurality of blades extending from the hub towards an outer circumferential edge of the disk. The pump may include a hollow pump body defining an inner tubular passage between an inlet end and a discharge end. An impeller may be arranged at the inlet end and an outlet port may be arranged at the discharge end. The pump and the fan may be coupled at an interface between the discharge end of the pump body and a bottom surface of the disk. The outlet port may be disposed in the interface and arranged to guide a stream of pumped liquid along the bottom surface of the disk. The disk may define a liquid barrier.

Abstract: A convertible humidifier that includes a base portion that produces mist, a control panel that controls the production of the mist by the base portion, at least one reservoir detachably connectable to the base portion for holding water used to produce mist, and a nozzle configured to direct the mist. At least one reservoir includes a pass-through connection that provides a flow path for mist from the base portion to exit the humidifier through an opening on the reservoir. The nozzle is detachably connectable directly to the opening in a first operation mode, and the nozzle is connected to an extending portion which is detachably connected to the opening in a second operation mode.

Abstract: A convertible humidifier that includes a base portion that produces mist, a control panel that controls the production of the mist by the base portion, a reservoir, detachably connectable to the base portion, which holds water to be used by the base portion to produce the mist, and a nozzle configured to direct the mist. The reservoir includes a pass-through connection that allows the mist produced by the base portion to be directed to an opening on a top surface of the reservoir. The nozzle is detachably connected to the opening on the top surface in a first operation mode, and the nozzle is detachably connected to an extending portion, which is detachably connected to the opening on the top surface, in a second operation mode.

Abstract: A gas heat sub-base for use in conjunction with a PTAC or similar HVAC terminal unit, the sub-base having a housing with a front side, back side, top and bottom all defining an interior space. The top is configured to mate with the bottom of the PTAC unit. The sub-base also includes a plurality of air intake louvers on the front side of the housing and a heat exchanger located within the interior space of the housing. The gas heat sub-base is separate from, but is integrated with, the PTAC unit. A heating and cooling unit includes a PTAC unit with the gas heat sub-base.

Abstract: A system may include a portable spray device having a battery powered drive, a rotary atomizer driven by the battery powered drive, and a syringe configured to supply a liquid to the rotary atomizer, wherein the rotary atomizer is configured to rotate to atomize the liquid into a spray. A system may include a portable spray device having a barrel portion with a first syringe fluidly coupled to a spray head, and a handle portion coupled to the barrel portion via a break-action mechanism. The handle portion may include an actuator assembly configured to drive a first plunger in the first syringe.

Abstract: The present invention provides a disperser that gives a local dispersing effect and a homogenous dispersing effect and that achieves a more efficient dispersion. The shearing disperser comprising a rotor and an opposing member that is opposite the rotor, wherein the disperser disperses a slurry or liquid mixture by allowing the mixture to pass through the disperser and outwardly between the rotor and the opposing member by centrifugal force, and wherein the disperser further comprises a plurality of gaps that are provided between the rotor and the opposing member and lead the mixture outwardly; and a buffering space that is provided to connect an outermost gap to a gap located in a position inward from the outermost gap and that retains the mixture.

Abstract: A misting fan includes a rotatable fan blade collar, a plurality of fan blades mounted around the rotatable fan blade collar, a mist-generating assembly, a drive mechanism and a motor. The mist-generating assembly includes a mist nozzle disposed inside the fan blade collar and a hose with one end being coupled to the nozzle. The motor includes a motor shaft for rotating the fan blade collar through the drive mechanism. An axis of rotation of the motor shaft is offset from an axis of rotation of the fan blade collar.

Abstract: The invention concerns a device comprising a rotary body (1) made of a fibrous or porous material, means for rotating (3, 4) said body (1) and means for inputting liquid (10, 11) contacting said body (1), so as to subject said liquid to the dispersing action of forces at the liquid/solid interface, and to rotate the body (1) so as to subject the comminuted liquid to a centrifugal force.

Abstract: A misting fan includes a rotatable fan blade collar, a plurality of fan blades mounted around the rotatable fan blade collar, a mist-generating assembly, a drive mechanism and a motor. The mist-generating assembly includes a mist nozzle disposed inside the fan blade collar and a hose with one end being coupled to the nozzle. The motor includes a motor shaft for rotating the fan blade collar through the drive mechanism. An axis of rotation of the motor shaft is offset from an axis of rotation of the fan blade collar.

Abstract: A hand-held paint spray gun apparatus having a paint reservoir on the gun and reciprocating piston driven by a motor in the hand-held paint spray gun, the gun having a multiple orifice spray tip with a pair of apertures emitting generally fan or cone shaped overlapping spray patterns. A locking nut retains the cylinder to a motor frame and a frame carries the spray tip, with one of the nut and frame having a corrugated surface and the other of the locking nut and the spray tip frame having a plurality of protrusions engaging the corrugated surface. The protrusions are spaced apart circumferentially from each other and with respect to the spacing of a plurality of troughs and crests in the corrugated surface such that only one protrusion at a time is nested in a trough of the corrugated surface.

Abstract: A housing has walls terminating with an opening and a circular aperture adapted to hold a bottle. A fan assembly has a motor within the housing. The fan assembly has propellers exterior of the housing. The fan assembly has a rotatable shaft and a button. The button is operatively coupled to the motor. A spray assembly has a tube. The tube has an input end and an outlet end. A trigger extends through the opening. A pump operatively couples the trigger and the tube. A drinking assembly has a passageway extending through the housing. The drinking assembly has a straw. The straw has a lower end positionable within the bottle and an upper end positioned above the housing.

Abstract: A hand-held device for applying a layer of fluid droplets on a target or subject is provided. The device includes a housing with a fluid reservoir. The device further includes an inlet port in the housing for receiving pressurized fluid. A rotatable brush roll in the housing includes a plurality of bristles. The brush roll is configured for rotation along an axis positioned to have a selected spatial relationship relative to an exit window in the housing. A conduit for delivering the pressurized fluid to the bristles in the brush roll is provided. At least one flipper element is positioned to contact the tips of the bristles extending over a corresponding section of the rotatable roll so that fluid collected therein is propelled through the exit window in the housing with a pattern at least in part based on the selected spatial relationship between the rotation axis of the brush roll and the exit window. An outlet port is provided for draining fluid that accumulates in the reservoir.

Abstract: A side-handle mist sprayer has a mist-liquid container (3) with a side handle (1) vertically above a container base (2). A finger aperture (4) is positioned between a front container extension (5) and the side handle. A spray-trigger pump (6) having a spray trigger (7) is contained in the side handle. The spray trigger is positioned forwardly from the side handle for being finger operable with one or more fingers of a user inserted into the finger aperture for simultaneously holding the side-handle mist sprayer in a use orientation and squeezing the spray trigger to mist-pump liquid from the mist-liquid container through a mist nozzle (9) on a top-front side of the front container extension. A soft-blade fan (10) extended from a fan-power pack (11) is positioned on a front side of the front container extension. The mist nozzle is positioned to direct mist onto back sides of soft blades of the soft-blade fan for being fanned by rotation of the soft-blade fan.

Abstract: A centrifugal humidifier having a rotatable body for propelling water outwardly on to an impingement surface that brake up the propelled water into droplets which are then entrained in a stream of air and discharged to the surroundings, wherein the impingement surface has a multiplicity of sawtooth ridges oriented with the more gradually inclined sides facing toward the direction from which the water is propelled by the rotatable body which promotes breaking up the water into finer droplets.

Abstract: A self-propelled irrigation machine including an elongated main boom pivoted at one end to a center pivot and supported on a plurality of self-propelled, non-steerable drive units. An extension boom is pivotally secured to the other end of the main boom for irrigating corner areas of the field. A steerable drive tower supports the extension boom and includes a pair of steerable drive wheels. The guidance and control for the extension boom includes a UWB receiver and a computer positioned on the steerable drive tower for receiving and processing UWB information as to the location of the steerable drive tower and for determining the optimal steer angle for the steerable drive wheels relative to the movement of the main boom. At least one UWB transmitters are located within receiving range of the UWB receiver. Signals transmitted by the UWB transmitters are received by the UWB receiver on the steerable drive unit and are used to determine current location and optimal steer angles relative to the main boom.

Abstract: A hand-held, pneumatically propelled, metering dispenser for powdered or granular products such as pesticides, the dispenser having a manually operated pneumatic pump, a product canister, a metering scoop insertable into the product canister in operative alignment with the pneumatic pump, and a discharge line into and through which powder or granules supported in the scoop are blown by operation of the pneumatic pump.

Abstract: A slurry dispenser dispensing slurry by a pair of counter-rotating wheels is provided in a chemical mechanical polishing process used in manufacturing integrated circuits. The slurry dispenser is driven by variable speed motors at a predetermined speed empirically determined to dispense a desired amount of slurry. The shape of the rotating wheels controls the vertical distribution of the spray. Openings in the housing of the slurry dispenser and the speed of rotation of the wheels controls the horizontal distribution of the spray. The slurry dispenser can be constructed out of materials chemically inert with respect to the slurry.

Abstract: A system for applying a viscous mass upon a surface comprising a housing having a spout and a reservoir for carrying the viscous mass, an abutment spaced from the reservoir, and an impeller rotatably mounted proximate the reservoir having radially extending substantially flexible impeller elements for passing through and collecting the viscous mass upon rotation of the impeller, and for successively engaging the abutment past which the impeller elements are flexed, whereupon release therefrom impel mass particles through the spout against the surface, the abutment being selectively positionable for impelling the viscous mass in a predetermined trajectory.

Abstract: A device for generating a spray of mist or fine droplets includes a spinning rotor within a mist chamber. The rotor has inner walls which taper conically outwardly from the open bottom of the rotor to a hole near the top of the rotor. Liquid is pumped by a finger actuated pump from a cartridge module into a bowl surrounding the bottom end of the rotor. A spray is created as the liquid is formed into droplets as it passes through the hole in the rotor under centrifugal force. A directional light source is used for aiming the spray.

Abstract: A system for applying a viscous mass upon a surface comprising a housing having a spout and a reservoir for carrying the viscous mass, an abutment spaced from the reservoir, and an impeller rotatably mounted proximate the reservoir having radially extending substantially flexible impeller elements for passing through and collecting the viscous mass upon rotation of the impeller, and for successively engaging the abutment past which the impeller elements are flexed, whereupon release therefrom impel mass particles through the spout against the surface, the abutment being selectively positionable for impelling the viscous mass in a predetermined trajectory.

Abstract: A device for spraying a liquid has a rotating surface, preferably one with an edge apron which is angled obliquely toward the outside, from whose possibly serrated outer spraying edge the liquid is flung out. The rotating surface is partially covered by a housing which is provided with an opening which leaves a partial circumference free. The device has a reservoir and a flow path for collecting retained drops, in whose circulation a pump is provided which is embodied to reunite collected liquid with the inflowing liquid. A conveying surface of a pump, preferably a friction pump, is disposed coaxially with the axis of rotation of the rotating surface.

Abstract: An improved atomizer comprises an atomizing mechanism, a housing mounted over the atomizing mechanism, a rotor mounted on the housing, the rotor having a number of blades made of flexible material mounted thereon, and a delivery tube connected between a back of the rotor and the atomizing mechanism. The rotor is driven by a motor disposed in the housing and configured as a frame with a number of ribs integrally formed thereon so that fluid can be atomized and diffused through the rotor with a good effect.

Abstract: A device for generating a spray of mist or fine droplets includes a spinning rotor within a mist chamber. The rotor has inner walls which taper conically outwardly from the open bottom of the rotor to a hole near the top of the rotor. Liquid is pumped by a finger actuated pump from a cartridge module into a bowl surrounding the bottom end of the rotor. A spray is created as the liquid is formed into droplets as it passes through the hole in the rotor under centrifugal force. A directional light source is used for aiming the spray.

Abstract: There is disclosed an integral portable fan and atomizing head unit forming a portable cooling unit adapted for direct attachment to a fluid reservoir such as a bottle, formed by a unit having an upper chamber and a lower chamber and a connector secured to the lower chamber. The upper chamber is provided with a motor and electrical means to activate and deactivate the motor and fan means including flexible fan blades mounted externally on the upper chamber and connected to the motor to turn in response to the activation of the motor. The lower chamber is provided with pump means and pump activation means and provided with an atomizing head in order to atomize fluid pumped up through the head. The connector is attached to the lower chamber and is adapted to disengageably engage a fluid reservoir directly, such as a bottle.

Abstract: A droplet applicator (3) utilised for the application of concentrated chemicals, e.g. fertiliser, pesticides or herbicides. The applicator device (3) is comprised of a plurality of fibres (9) extending and rotatable about a central hub (8) such that upon rotation of the device, the chemical liquid supplied to an upper surface is dispersed by the fibres (9).

Abstract: A brush-type dampening unit in a rotary printing machine, includes at least one revolving carrier member having a multiplicity of brush bristles arranged thereon a pan roller dipping at least partly into a dampening-fluid pan, and revolving in a direction opposite to that of the carrier member, adjusting means for adjusting the position of the carrier member with respect to the pan roller, the revolving carrier member and pan roller having respective separately controllable drives independent of a drive of the printing machine, and means for zonally metering a quantity of dampening fluid over the width of the machine, as well as for influencing a direction of movement of the dampening fluid.

Abstract: A spray device is used to deliver a liquid, liquid containing a solid or a solid in a shaped flow onto a surface. The spray device can be used to deliver the material downwardly, laterally or upwardly in the form of droplets, a curtain or a mist. The spray device consists of a housing which uses a center shaft to deliver the material from the feed end to the discharge end. At the discharge end this center shaft has a flange which rotates with the center shaft. This flange is adjustable. Disposed over this center shaft flange is a flange fixedly attached to the nozzle housing. The material that is being delivered is shaped into the desired form in this flange region of the spray device. This spray device is non-clogging. In a preferred embodiment the surface that is being coated is the surface of an edible food product such as a cookie, biscuit, cracker or candy. The coating can be an oil, an oil containing dissolved or suspended flavorants, or a confection such as chocolate.

Abstract: The invention relates to a liquid atomizer having a liquid atomizing rotor rotatable about an axis, and designed to feed a liquid into its inlet, along a liquid flow surface of the rotor and through its outlet as an atomized spray. The liquid flow surface is formed by a bent sheet member, fluted or zig-zag in formation, forming a closed figure surrounding the axis, and two generally symmetrically formed sheet portions, and doubler seams on diametrically opposite sides of the sheet portions for counterbalancing during rotor rotation about the axis.

Abstract: A centrifugal sprayer of the type having an electric motor driving a disc element, and coupled to a feed mechanism suspended in immersion in a container of liquid to be sprayed, including an external axially supporting bushing surface about the cone feeder, wherein the lower feed opening of the cone feeder is supported by a mating conical bushing surface, thereby providing laminar flow to the inlet of the cone feeder.

Abstract: A portable paint spraying device for generating a paint spray by centrifugally impelling liquid paint from the edge of a vertically oriented spinning disc. The disc is driven by an electric motor which also drives a conveyor screw used to lift the paint upwardly from a reservoir or container through a vertically oriented pump tube and into a spray chamber in the sprayer housing. The pump tube has a horizontal portion at the upper end thereof terminating in a delivery orifice through which the liquid paint is discharged into a centrally located recess or well in the front face of the disc. The disc has a relatively large flat annular region surrounding the central well which is in turn surrounded by an outer peripheral angled flange or lip having a feathered edge.

Abstract: A method of measuring the containment efficiency of a biological safety cabinet comprises releasing an aerosol of identifiable droplets within the cabinet and then sampling ambient air in the proximity of the cabinet so as to determine if particles of said droplets have escaped from the cabinet. Apparatus for producing a suitable aerosol comprises an impeller rotatable about an upright axis, an electric motor for rotating the impeller at high speed, (e.g. 20,000 to 30,000 r.p.m.), a reservoir for potassium iodide aerosol solution disposed above the impeller, and a hypodermic needle for providing a controlled flow of aerosol solution from the reservoir to the impeller, whereby rotation of the impeller disperses particles of the aerosol solution.

Abstract: A rotary-type melt applicator for forming pavement markings comprising a hopper for containing a marking composition having a composition outlet in its bottom and a plug-shaped member for opening or closing the outlet, with or without an oil bath surrounding the side wall of the hopper for maintaining the composition in a molten state, and a pair of rollers disposed adjacent to each other below the hopper, one of the rollers being a smooth-surfaced roller rotatable in a direction for feeding the marking composition to the other roller, the other roller being an applicator roller rotatable in a direction opposite to the direction of rotation of the feeding roller and having many sharp peripheral teeth extending axially thereof. The composition flowing out from the outlet onto the feeding roller is finely divided and scraped off therefrom by the sharp teeth of the applicator roller and then applied to a roadway surface.

Abstract: A pipe lining apparatus includes a distributor head which throws cement mortar centrifugally against the interior of a pipe, a trowel which smooths the cement mortar and a liquid coating spray applicator which applies a curing control substance to the trowelled lining. The spray applicator comprises an air atomizing device which produces a very fine coating spray and blows it onto the freshly applied mortar lining without disturbing the lining. Also, in one embodiment the coating spray application is mounted to swing laterally with the trowel so as to be maintained centrally in the pipe.

Abstract: A portable pump spraying device includes a container for the liquid to be sprayed, a housing positioned above the container having a spraying chamber, a pumping unit to elevate the liquid to the spraying chamber, and a rotating disc in the spraying chamber to attenuate and impel the liquid by centrifugal force through an egress port in the housing. Interceptor baffles within the spraying chamber finely trim the liquid spray as it leaves the egress port and direct the excess liquid back to a reservoir for recirculation. The pumping unit includes a rod that is reciprocated by an eccentric on the rotating shaft on which the disc is mounted. The rod acts as a piston which on its suction stroke withdraws liquid from the container and on its compression stroke discharges the withdrawn liquid and forces it through a nozzle onto the disc in the spraying chamber.

Abstract: Apparatus for building up and repairing a refractory lining of an industrial oven or like hot-running vessel comprises a disc rotatable in a horizontal plane in either direction for centrifugally depositing a granular refractory material on a portion of the lining to be built up or repaired, a conduit having an outlet opening above the disc for feeding the granular material thereto, and a drive shaft for the disc and for mixing and conveying elements for the granular material in the conduit, these elements being capable of conveying the granular material to the rotatable disc in either one of the selected directions of rotation of the disc.