Abstract: A portable, hand-held blower/vacuum unit has a housing structure defined by an upper engine shroud removably connected to the top wall of a lower impeller housing. Disposed within the shroud is a small internal combustion engine having a vertical crankshaft which extends downwardly through a depending well section formed on the top wall of the impeller housing, the lower shaft end being drivingly connected to a centrifugal fan impeller positioned within the impeller housing and operative to force a flow of ambient air therethrough. The engine is resiliently and floatingly mounted within the shroud by a resilient support system which prevents rigid contact between the engine and the shroud or the impeller housing to thereby substantially reduce engine vibration transmitted to the housing structure, and permit deflection of the engine relative to the housing structure to lessen the possibility of engine damage caused by impeller impact from ingested objects.

Abstract: A hand tool has an elongated housing, an adapter at one end of the housing, an electric motor in the housing, and a vane pump in the housing flanged directly to and driven by the motor and having an intake. A conduit is connected in the housing between the intake of the vane pump and the adapter. A battery in the housing is connected to the motor to drive same.

Abstract: A remote controlled fan is operated by a hand held remote control which controls the power, speed of fan rotation, oscillation of the fan, and movement of the fan. The fan operates on either AC power or batteries. The fan can move forward or rearward or rotate about its vertical axis in response to signals from the remote control unit.

Abstract: A portable car-used oil extracting and tire inflation apparatus, mainly comprising an electrical motor on the rotary shaft of which there are pivoted a crank shaft on the front end and a cooling fan on the rear end. A rocker arm is pivotably fixed to the crank shaft by which rocker arm the crank shaft can drive the coaxial pistons of the air and the oil cylinders to move forwards and backwards, forming an air and oil pump to perform oil extracting and tire inflation work.

Abstract: A portable air blower is provided for use around the home for purposes of drying a freshly washed vehicle or the like. The blower is supported on top of the arm of the user and proximate the user's shoulder as the user's arm passes through a rigid loop support which stabilizes the blower on the user's arm. The blower can be so operated for extended periods without the user becoming exhausted. An electric motor powers a fan and electrical resistance coils heat the air which passes therethrough.

Abstract: A combined air vent and pressure switch are provided at the inlet of a liquid pump. The air vent is adapted to exhaust air from a supply line, such as a garden hose, and thereby substantially prevent the pump from running dry before water from the hose reaches the inlet. The pressure switch is connected to the motor of the pump and is adapted to signal the motor to stop if the pressure switch senses a low pressure condition at the pump inlet, such as when there is inadequate liquid or no liquid at the pump inlet. The features of the air vent and pressure switch combine to prevent the pump from being damaged by running the pump without adequate liquid supply.

Abstract: An engine-driven blower unit has a casing, an impeller provided inside the casing, and an engine. The casing has a first opening on its wall close to the cooling fan of the engine so that a portion of the air inside the casing is let out through the first opening toward the engine. A second opening is formed so that a portion of the air around the engine is lead to the inside of the casing, to the downstream of the first opening. Thereby, engine-cooling effect is improved, and operational noise is reduced.

Abstract: Wallboard compound is fed by gravity from a reservoir to the inlet of a positive displacement pump which pressurizes the compound and feeds it to a wallboard taping applicator. The pressure of the compound fed to the applicator is controlled within predetermined limits so as to provide an even and near instantaneous flow of compound to the applicator.

Abstract: Portable, hand carryable acid purification and flushing and transfer systems are provided for use in various refrigerant recovery, recycling and flushing operations performed in conjunction with an air conditioning circuit. The acid purification system is disposed within a carrying housing and includes an accumulation/distillation type acid separator piped in series with a pair of cylindrical dual core filter assemblies. A pair of refrigerant inlet and outlet fittings are externally mounted on the housing. By connecting these fittings in a forced flow refrigerant circuit the refrigerant is passed sequentially through the acid separator and the first and second filter assemblies to cleanse the refrigerant of acid and particulate impurities therein. The portable flushing and transfer system is also disposed in a carrying housing and includes a high capacity liquid refrigerant transfer pump piped in series with a check valve and a relief valve.

Abstract: A convertible cart for a paint sprayer alternatively supports a sprayer pump assembly in either a horizontal or an upright position. When used in the upright position, the pump assembly is positioned for use with a smaller sized paint container, and the container can be securely moved about with the cart. When used in the horizontal position, the pump assembly is positioned for use with a larger sized paint container, and alternatively flexible suction and return hoses permit suction from larger paint containers.

Abstract: A small wheelable line striper is provided with a gasoline engine powered pump which has an outlet designed for direct immersion into a container of paint or other coating material. The gasoline engine and pump are mounted on a pump frame which is attached to two telescoping posts so that the pump and engine may be lifted upwardly out of the bucket of paint. The pump frame is biased upwardly by a nitrogen gas spring which provides an upward force slightly greater than the weight of the engine and pump so that the pump may be lifted automatically. Latches are provided to latch the pump and engine in either the upward or downward positions.

Abstract: A submersible pump such as a sump pump or sewage pump has a handle which also serves to provide electrical connections and an oil port. The handle has two barrels which extend through the top of the pump casing and receive nuts which secure the handle on the pump. O-rings are provided beneath flanges on the barrels for sealing purposes. Retainers for the O-rings hold them beneath the flanges. One barrel has electrical terminal pins molded into it. A power cord can be connected with the pins by inserting a plug on the cord into a socket on the barrel. Within the pump casing, the terminal pins are connected with wiring for the motor. An external float switch controls the on and off conditions of the motor. The second barrel provides an oil passage which may be closed by a removable threaded plug.

Abstract: A hand portable positive pressure blower for fire fighting is described which includes an engine 10 with a drive shaft 12 mounting a propeller 16 within a propeller guard 22. This assembly is rigidly mounted to a central frame 27 that itself is rigid and extends about the engine. The central frame 27 is mounted by pivots 47 to a rigid support frame 37 for movement about a fixed adjustment axis 50. An adjustment means is provided to enable selective angular positioning of the central frame about the adjustment axis. The support frame 37 is mounted on rubber feet 42, 43 at integral pairs of forward and rearward legs 38, 39. The legs 38, 39 are angularly oriented with respect to the adjustment axis. Distances from the feet to the adjustment axis and the angular relationship of the blades promotes a secure footing for the blower and a compact configuration to facilitate transport and storage.

Abstract: To permit at least partial disassembly of a drive motor (2) from a coupled pump system (3) to provide high hydraulic pressure, and separate portability of the motor element and the pump element, a cart, with wheels (4), is provided with a horizontally transversely extending mounting plate (28) on which the motor (22) can seat, with its motor shaft (27) extending vertically. The pump unit (3), which can be formed of two or more high-pressure hydraulic pumps and include a cooling water circulating pump (14), has a vertically extending pump shaft (56). The motor shaft and the pump shaft extend through the mounting plate, and a transmission, preferably a belt transmission, is located below the mounting plate. The belt transmission may include a drive pulley which is hollow in the middle, and formed with an internal gear (33) which engages an external, axially curved gear (14') on the motor drive shaft, to form a separable coupling. The motor can be lifted off the cart, and transported separately.

Abstract: A combined fluid pumping and storage system which is readily portable and employs a compressed gas operated pump together with a liquid container on a vehicle, the vehicle also carrying at least one compressed gas supply for operating the pump whereby the vehicle is easily transported to a site where liquid is to be picked up for transporting elsewhere and can be operated safely in all conditions including potentially flammable conditions.

Abstract: A housing for a fan motor for a portable paint spray gun has a compartment accessible from the bottom in which an air hose is storable and provides an air path from the fan motor to the air hose having a minimum number of turns or curves between the motor exhaust port and the air hose. The housing enhances portability by providing convenient storage for the air hose when not in use and increases fan motor efficiency by reducing drag on the air flow by providing a relatively low resistance air path from the fan motor to the air hose.

Abstract: A manually operated pump includes a pulley sheave oppositely wound with cord and rotatably mounted on a support element, a two-stage pump, and a reciprocal action shaft. The shaft is mounted eccentrically through the assembled pump, including through a clearance hole and slot in a main piston of the pump. The pump is a cylinder with a double-ended piston slidably mounted within and forming a main chamber at each end of the cylinder. An offset high pressure piston extends into the main chamber from each cylinder end for operation with offset high pressure chambers defined in each end of the double-ended piston. Passageways with differential air pressure valves lead from the slot to the main chambers, from the main chambers to the high pressure chambers, and from the high pressure piston to outlets.

Abstract: A portable fluid pumping device includes a valve assembly having a pair of one-way umbrella valves controlling the flow of air to produce a positive pressure at one port and a negative pressure at another port. Each umbrella valve includes a valve stem having a neck received within the mounting opening, and an umbrella skirt integrally joined to the neck to overlie the valve opening. The umbrerlla skirt is relatively thin for its complete extent, and the juncture between the umbrella skirt and neck of the valve stem is of frusto-conical configuration increasing in diameter from the neck to the umbrella skirt.

Abstract: A compressed-air generator with adjustable pressure output and/or adjustable air throughput has a housing (11) and a fan motor arranged in the housing (11) below the top side (27) thereof. Further provided is an adjustment member which may be adjusted by way of a rotary knob (45) and which is provided for adjustment of the pressure output and/or the air throughput. In the compressed-air generator (8), a protective apparatus (47) at least partially covering the rotary knob (45) is provided, with the rotary knob (45) preferably being arranged on the top side (27) of the housing (11) (FIG. 1).

Abstract: An apparatus for driving a sampling pump disposed in a monitoring well comprises a structural support member including a container for pressurized gas; a platform having a top surface and supported by the structural member; an air compressor secured on the top surface and operably connected to the container; a venturi for generating a vacuum from the pressurized gas in the container; an engine for driving the air compressor; and a controller operably connected to the container, the generating means and the sampling pump for alternately directing compressed air and vacuum to the pump to thereby operate the pump.

Abstract: A cartridge fed infusion pump containing a plurality of linear peristaltic pumps. Each pump is powered by a direct current motor. The motor has a shaft which rotates to perform a pump cycle. A position encoder mounted on the shaft is used to determine when the shaft has reached the stop position in the pump cycle. A reverse pulse is used to quickly stop the motor shaft.

Abstract: A battery-operated air pump for a bicycle, adapted to serve as a transportable accessory by its size and cylindrical shape, so that it is readily carried in the rack usually used for a water bottle, and thus is accessible to the bicyclist as a substitute for the water bottle to be used for tire inflation and other end uses.

Abstract: A portable fluid pumping device includes a piston-cylinder drive in which the piston head is formed with a central section of smaller diameter than the cylinder, and a peripheral flexible section slidably engageable with the side wall of the piston, to thereby produce a slidable seal which obviates the need of a rolling diaphragm. The device further includes a noise-muffling construction, a relief valve presettable for presetting the degree of suction, and a detachable collection container having a cut-off valve for disconnecting the container when it is full with liquid.

Abstract: An apparatus includes a compressor having an outlet. A U-shaped reservoir, having a substantially constant internal cross section, is in fluid communication with the outlet. The reservoir has two leg portions and a connecting portion, the compressor being located between the two leg portions wherein an overall dimension of the apparatus is reduced. This apparatus may be used for dispensing soft drinks, beer and the like. It is especially useful where the width of the compressor reservoir unit is critical.

Abstract: A vehicle tire compressor driven by attachment to the battery of a vehicle has a pressure gauge determining the output pressure. The gauge has a moving indicator indicating pressure on a dial. A photoelectric sensor can be adjustably positioned relative the dial to a pre-selected pressure such that, when the moving indicator indicates the said pre-selected pressure, the photoelectric sensor output will change, means being provided to detect this change and stop further operation of the compressor.

Abstract: A portable pump assembly having a hollow housing with enlarged top and bottom is provided for holding a motor, switch, and battery pack. A pump chamber is formed on the underside of the housing and houses a pump impeller mounted on the end of the motor shaft. A flexible discharge tube extends from the pump and passes through an opening in the enlarged bottom such that the tube may be conveniently wrapped around the housing for storage or extended for use. A removable cover provides an easy access for replacing batteries. Further, the batteries are carried in a battery pack which plugs into a receptacle in the housing, thus simplifying and speeding battery replacement.

Abstract: A diaphragm pump with a pumping component composed of a paint stage and propulsion stage; a hydraulic component; and an engine component such as a motor, fashioned such that, in a first predefined position or orientation the hydraulic component and the motor are mounted to each other in side-by-side arrangement, and the pumping component sits on top of the hydraulic component, whereby it is possible to cant the diaphragm pump by 90.degree. and thus bring it into a second operable position for orientation. Unguided paint valves are thereby applied such that, in both positions of the pump, they enclose the same angle with the horizontal line. A measuring stick and an intake line are strategically arranged to be useable in both positions of the pump. A stationary support frame and a mobile support frame are presented to facilitate the flexible positioning or orientation of the pump.

Abstract: A backpack-type power working machine comprising: a carrying frame having side guard sections on both sides thereof, a fan attached to the carrying frame through intermediation of vibration-damping members, an engine connected to the fan, and an air cleaner having side end sections and situated at a position behind the fan and above the engine, the side end sections of the air cleaner being respectively attached to the side guard sections of the carrying frame.

Abstract: A motor driven compressor is supplied with power from a battery and supplies compressed air at the outlet of an air hose. Compressed air via the hose is supplied to a lifting device, for example a bellows of an invalid seat assembly. In the apparatus the output of the compressor is passed through a non-return valve so that when the compressor is turned off supplied air cannot bleed back through the compressor. A pressure switch breaks the electrical circuit should pressure build up excessively at the output. Additionally, an air dump valve is provided to enable pressure in the output line to be vented to atmosphere. Operation of the compressor is controlled by a hand control.

Abstract: A portable compressor of the tire in which an electrically powered compressor is housed in a case. The case having a hinged plug capable of being connected to and having fixed thereto by the connection a portable light fitting. The light fitting having permanently attached to it a length of electrical cord with a plug for temporary attachment to the cigar lighter of a vehicle to draw power from the vehicle's electrical system. The light fitting including an outlet socket to which the hinged plug can be connected for electrical connection of the electrically powered compressor and for fixing and supporting the light fitting on the case. The hinging of the plug allowing it and the light fitting when attached to it to be folded flat to the case for storage, and the light fitting to be upstanding from the case to illuminate the region of the case. When the light fitting is removed from the plug, however, it can be used as a portable light fitting independent of the case.

Abstract: A portable, high-pressure, power washing system is described which includes an electric motor driven gear pump where the electric motor is effectively water cooled by virtue of being contained in a thermally conductive housing surrounded by an insulating water jacket through which the water being pumped is made to flow before reaching the pump's inlet port. The pump is driven through a gear reduction mechanism such that a relatively inexpensive, single-phase, series AC (universal) motor normally operating at a high rpm can be employed. By proper dimensioning of the pump chamber relative to the drive and idler gears and by providing a flow divider at the pump chamber's discharge orifice, high pumping efficiency is obtained. Completing the assembly is a discharge wand for directing the high pressure water at the surface to be cleaned and for controlling the on/off state of the pump's drive motor.

Abstract: The present invention relates to an air compressor assembly. The compressor assembly includes an air tank, a compressor body, and a joining part for joining the air tank and the compressor body. The air tank has an axis therealong. The compressor body adjacent to the tank has an axis therealong for supplying compressed air to the air tank, the axis of the compressor body being disposed parallel to the axis of the tank. The compressor body includes a cylinder head, the cylinder head having an axis therealong, the axis of the cylinder head being disposed perpendicular to the axis of the compressor body and inclined to the tank.

Abstract: This invention relates to an improved portable air pump and in particular to one that utilizes a compressing rod, a cylinder and a base to pump air in the object that requires air. By pressing the compressing rod down, air will be forced to flow through a one way valve into an air duct and blow out of an air outlet. The spring will return the compressing rod to its original position because of its elastic force. A force block shall cause the cylinder to move forward so that a squeezer may squeeze a rubber fixture to eliminate an air gap so that air will not flow toward other directions but air nozzle as desired.

Abstract: To remove leachate collection in a drainfield under a landfill site with an inclined pipe conduit connected to a main leachate collection conduit pipe, the access pipe opening to the surface with a discharge flexible hose with a submersible pump on the end in carriage device including a housing attached around the submersible pump with two pairs of wheels freely and rotatably attached to the housing with the wheels angled outwardly and rotating in planes which intersect on a line parallel to the longitudinal center line of the housing, the line being above the housing and proximate the center line of the pipe conduit.

Abstract: An air circulation device including a blower having a hollow housing with a rotatable squirrel cage blower incorporated therein with discharge louvers being adjustable for controlling the direction of air flow discharged from the air circulation device. The air circulation device is supported on a stand of hollow construction having air inlet openings elevated above the lower end thereof together with a filter structure associated with the air inlet openings to remove particulate material and pollutants from the air taken into the air circulation device with hollow air transfer members extending from the hollow stand to the interior of the squirrel cage blower through doughnut shaped seal devices of lightweight compressible foam material.

Abstract: A housing for a pressure washer for internal components of the washer such as a pump, an electric motor for the pump and a valve assembly. The housing has first and second identical interconnected housing halves. The inner surface of the housing halves include pairs of ribs interacting to engage the internal components.

Abstract: A modular infusion pump system utilizes a positive displacement pump for pumping a known quantity of fluid for each stroke. A plurality of longitudinally spaced apart fixed combs cooperate with a resilient tube to define a known pumping volume. A plurality of movable combs are interdigitated with the fixed combs and are periodically linearly directed to cause the pump volume to be compressed, and therefore the fluid expelled. A rotary to linear drive system is connected with the movable combs and a ratchet system prevents counterrotation when the motor is in the off position. Valves are disposed above and below the pumping unit to appropriately seal off the pumping volume. The valves and the movable combs are operated by means of cams carried by a common shaft.

Abstract: A portable rechargeable battery-operated slender tubular blower for removing relatively light debris from hard surfaces such as sidewalks, driveways, decks or workbench surfaces. The blower uses an axial flow blower fan arranged for noise minimization and energy efficient operation. Blower tube inlet and outlet portions are arranged for debris removal effectiveness by optimizing airflow volume and velocity parameters.

Abstract: A portable air compressor driven by an electric drill is disclosed. The compressor is rugged, reliable, and designed for economical mass-production for widespread marketing to professional mechanics and do-it-yourself home craftsmen. In one embodiment, a pair of "clam shell" mating housing halves enclose the crankcase and cylinder. In another embodiment, the "clam shell" halves are molded from a plastic material and are mounted on the rearward portion of a die-cast cylinder housing.

Abstract: A diaphragm pump is mounted on a frame or bracket. The inlet of the diaphragm pump connects with a flexible hose or tubing having a probe designed to fit into a vehicle fluid passage such as the dip stick passage associated with the oil pan of a vehicle. The outlet to the diaphragm pump is connected to one of a pair of based hollow tube members designing part of a bracket for support of the pump. Each hollow tube has a generally S shape configuration and is connected to the other tube by cross braces. One of the hollow tubes has the dual function of acting as a support bracket for the diaphragm pump assembly and as a fluid conduit, which is connected to the diaphragm pump outlet at one end and defines a discharge passage into a container at the opposite end. The bracket assembly may thus be supported on a drum or other container by the bracket members with one of the bracket members serving as the discharge tube into the container.

Abstract: A mobile pumping unit including a housing enclosing an engine driven pump. The housing defines an air inlet chamber substantially isolated from an engine compartment. Air drawn into the inlet chamber by an engine driven blower is conveyed along a flow path and absorbs waste heat from the engine and is discharged to the ambient from an exit chamber. The inlet and exit chambers each include acoustic material for controlling noise in the air flow path. A conventional exhaust silencer is disposed in the exit chamber so that noise radiated from its surfaces is also controlled. A ventilation flow path for the engine compartment is established by bleeding off a portion of said cooling air and discharging it through a secondary outlet formed in the housing. A hot air outlet for the cooling air is formed by a self-opening door hingedly mounted to the housing which is automatically opened by the air pressure in the exit chamber when the pump unit is started. The door is operatively connected to an exhaust pipe cover.

Abstract: A portable floating apparatus for providing pressurized air to a submerged diver. The apparatus is comprised of the combination of a gasoline engine and an air compressor, said combination being housed in a buoyant container similar to a suitcase. The gasoline engine is preferably a two-stroke engine which drives the air compressor. The top of the container has large outlets for the intake of fresh air for compression, engine cooling and the exit of exhaust gases. These outlets have cowlings extending therefrom to reduce flooding by water from spraying or waves in rough seas. A small outlet on the side of the container with a coupling allows a flexible hose to supply air to a submerged diver. An optional fan may be inserted in the duct of one cowling to provide additional ventilation and cooling. The air supply hose, cowlings and other exterior components can be stored in the container when not in use.

Abstract: An improved portable compressor kit for use with motor vehicles including a detachable light. The compressor kit has an electrical cord which is plugged into the cigarette lighter socket of a vehicle. The case is wired so that it supplies electricity to the compressor held by the case and also to a light held by the case. The light may be unplugged from its connection with the case as may be the conductor which leads from the cigarette lighter socket, and this conductor may then be plugged into the removable light to provide a portable light.

Abstract: A pneumatic system (10) is shown in its most preferred use in a spray gun (12) to remotely control a pressure washer. The system (10) generally includes an integrally formed, homogeneous squeeze box (40) including a location ear (52), a nose tube (46), a bellows (44) and a discharge tube (48). Bellows (44) is generally rectangular in cross section and includes a flat top (62) and bottom (63) and accordion sides (64) having generally longitudinal fold lines (72, 74, 76, 78, 80) which are generally parallel to the mold part line (93) and the tubes (46, 48) but include a 2.degree. draft for ease in mold removal. A valve and spring tube (42) is loosely received on the nose tube (46) for sealing a vent hole (60) provided therein when the bellows (44) is compressed by a trigger (30) of gun (12) and for biasing the trigger (30) to an uncompressed bellows condition.

Abstract: A fire booster device is provided and consists of a portable air blower with an elongated hollow extension sleeve to guide forced air directly onto a source of a fire. In a modification the extension sleeve is movable and adjustable thereon for greater mobility of the device.

Abstract: A pump unit is provided with a housing enclosing a motor and a pump block flanged thereto. The housing closely follows the contours of the motor and the pump block and is provided with external projections for accommodating accessories for use with the pump unit. A handle is integrally formed at an upward projection of the housing, the upward projection serving as an enclosure for a capacitor connected to the motor.

Abstract: The invention is directed to an improved blower-vacuum apparatus or unity which relies on the judicious placement of the components to reduce or eliminate vibration and rotation forces thereby contributing greatly to operator comfort.

Abstract: A multi-functional implement useful as a portable automobile accessory which includes a main casing and an air functional portion mounted in the main casing. The air functional portion includes a first mechanism for blowing air outwardly of the main casing and a second mechanism for pumping air under pressure outwardly of the main casing. A motor having an output shaft extending in a longitudinal direction is movably mounted in a frame which is mounted in the main casing such that the motor is movable back and forth in the longitudinal direction. A lever is pivotably mounted to the main casing and connected to the motor for moving the motor between a first position at which the motor is engageable with the first mechanism to effect blowing of air outwardly of the main casing and a second position at which the motor is engageable with the second mechanism to effect pumping of air under pressure outwardly of the main casing.

Abstract: A portable lubricating apparatus is illustrated which utilizes an upright removable and replaceable container of grease for delivery through a hose and nozzle carried on a wheeled chassis wherein a frame is carried adjacent one end of the wheeled chassis receiving the container of grease in such a way that a connection with the dispensing mechanism is effected by the act of replacing and installing a new container of grease.

Abstract: An improved structure of a fixed device of fan switch, which is to fix a fan switch fixing plate to the steering gear box that firmly attached to the motor and to fix a fan switch to the fixing plate through two of the supporting rods of the fixing plate, and at the same time, to fix a plastic back cover to the fixing plate through the other two supporting rods of the fixing plate so as to combine the motor, the fan switch fixing plate, the fan switch and the plastic back cover together as one unit.