Abstract: A device in which a needle-shaped valve element of a control valve is inserted into the throttle hole of a fuel channel to adjust the fuel flow rate. Accurate adjustments can be made with a small number of rotations of the control valve. A compensation channel 16 having a metering jet 17 for establishing the minimum required engine flow rate is provided to a valve element 13 of a manual control valve 12 that is inserted in a throttle hole 18 of a primary fuel channel 7. The flow rate is adjusted between the maximum required engine flow rate and the flow rate established by the compensation channel 16 in the gap between the external peripheral surface 13a of the valve element 13 and the entrance edge 18a of the throttle valve 18. Fuel can thereby be adjusted with a small number of rotations of the control valve 12. Accurate fine adjustment can be made with a small number of rotations even when the fine adjustment is achieved by reducing the taper angle of the conical portion 13A.

Abstract: An elongated drain screw mechanism having a solid front end disposed in the fuel bowl of a carburetor. The mechanism has an intermediate section disposed in the bowl the intermediate section having at least one transverse opening into which fuel in the bowl can flow, and a rear section extending through the bowl to the outside of the bowl. The rear section has a hollow open end and has a longitudinal channel connected to the transverse opening and communicating with the hollow open end. A first quick disconnect coupler is disposed in and seals said open end of the rear section. The first coupler has a normally closed position which blocks fuel flow and can be placed in open position at which fuel can flow.

Abstract: A carburetor, especially for the internal combustion engine in a motor-driven implement, is provided. Formed in the carburetor is an intake channel that has at least one partition extending in the direction of the longitudinal axis of the intake channel. The partition divides the intake channel into at least one air channel and at least one mixture channel. At least one fuel nozzle opens into the mixture channel. Pivotably mounted in the intake channel is a butterfly valve. To obtain a favorable starting and acceleration condition, with reduced exhaust gas values in the full throttle range, the butterfly valve is provided with at least two sections that are moveable relative to one another.

Abstract: The present invention recognizes that the build-up of residue in a metal alloy injection valve used to inject a liquid phosphorous precursor compound is due to the nickel in the alloy affecting the liquid phosphorous precursor compound. The invention thus provides components manufactured of an alloy having a low nickel content, preferably less than 5% nickel, and more preferably less than 1%. In an additional aspect of the invention, the alloy is provided with a higher chromium content, preferably at least 15% chromium, more preferably 16-27%.

Abstract: A carburetor with a manual priming pump having an integrated fuel drain which provides both the engine manufacturer and end user with an easy way to drain fuel from a fuel chamber of the carburetor. The priming pump has a pump chamber defined by a resilient priming bulb. The pump chamber generally communicates between the fuel chamber and a fuel-and-air mixing passage of the carburetor body and is preferably positioned above the fuel chamber. The dual function of the manual priming pump, prime or drain, is switched by a valve with a rotatable selector member received between a seat and the resilient priming bulb of the pump. The selector member moves between a drain position and a priming position thus enabling draining of the fuel chamber or priming of the carburetor via successive manual depressions of the priming bulb.

Abstract: A device for introducing ozone uniformly into water flowing through a conduit for disinfecting the water. An ozone-contacting vessel is provided and includes a downflow tube through which water is caused to flow. The downflow tube is positioned vertically within a diffusion chamber. Within the downflow tube are a plurality of layers of transversely extending porous elements that are in communication with a source of ozone to provide a relatively uniform distribution of fine ozone bubbles over the cross-sectional area of the downflow tube. The downflow tube can be J-shaped, to convey ozonated water into downstream ozone reaction cells to permit oxidation or disinfection of the water being treated. An outlet seal plate is provided at the J-tube outlet to prevent backflow into the J-tube upon shutdown of the contactor cell containing the J-tube.

Abstract: A carburetor for an internal combustion engine is provided and includes at least one adjusting screw disposed in a housing for regulating the fuel/air mixture. The adjusting screw is screwed into a bore of the carburetor housing. The adjusting screw is embodied as a cheese head screw, whereby one end of the screw is provided with two slots that are cross-shaped relative to one another and extend over the diameter of the cheese head screw.

Abstract: A choke valve of an engine carburetor is movable between “ON” and “OFF” end positions relative to the carburetor body and is biased to a selected one of the two positions by a spring which passes through a dead point during movement of the choke valve from one to the other of the end positions. A separate adjusting element movably mounted on the carburetor body and positionable by the engine operator moves the valve element past the dead point to achieve movement of the valve from one to the other of its end points without the adjusting element being drivingly connected with the choke valve in at least the “ON” end position of the valve.

Abstract: A carburetor float bowl drain screw and recovery system includes a retaining screw having a threaded forward end, an intermediate portion having a plurality of transverse holes leading to an axial channel and an internally threaded end portion terminating in a hex head. An externally threaded insert engages the end portion and includes a tapered forward portion which engages tapered internal walls on the retaining screw to effect a seal, an internal channel and a hexagonal rear portion terminating in a cylindrical end for coupling a fuel line thereto. When the insert is loosened fuel flows through the holes in the screw into the screw channel and then outwardly through the insert channel to a fuel line. The fuel bowl may thus be safely drained.

Abstract: A process and apparatus for producing a polymeric foam, wherein foam components are brought together under pressure and are passed through a permeable discharge head where the pressure is reduced. The permeable discharge head comprises a diffuser element having a structure such as to require division, divergence and convergence of flow paths in three dimensions within its axial thickness, considered in the direction of flow therethrough. The diffuser element comprises plural individual woven wire meshes sintered together to form a composite element. The invention also provides the diffuser element.

Abstract: A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).

Abstract: A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).

Abstract: An apparatus comprising a rotatable mass of structured packing for mass or heat transfer between two contacting fluids of different densities wherein the packing mass is made up of corrugated sheets of involute shape relative to the axis of the packing mass and form a logarithmic spiral curved counter to the direction of rotation.

Abstract: This invention discloses an atomizer for hairdressing which generates micro-size liquid particles by means of electricity-mechanical power conversion elements as a source of ultrasonic wave. The atomizer for hairdressing of this invention intakes air and forcibly send it into a path made of an elastic member. Then it generates minute-diameter liquid particles from the surface of a stored liquid by means of the vibration of the electricity-mechanical power conversion means. Those liquid particles are heated and inducted into the above-mentioned path. The micro-size liquid particles having a diameter of several .mu.m or less generated by the ultrasonic vibration can be controlled at a predetermined temperature. Moreover, the particles can be blown out independently or with hot or cool air.

Abstract: Disclosed herein is an engine throttle control for marine propulsion devices and the like, which control includes a main control lever mounted for movement between a neutral or idle position and a full throttle position, a throttle lever adapted to actuate the engine throttle in response to rotational movement of the throttle lever, an actuation member operably connected to the control lever and mounted for movement in response to movement of the control lever, and means connecting the throttle lever to the actuation member for rotating the throttle lever in response to the movement of the actuation member and for effecting gradually increasing rotational movement of the throttle lever relative to incremental movement of the actuation member during at least a portion of control lever movement from the idle position toward the full throttle position.

Abstract: Apparatus comprising a liquid flow path having two parallel connected sections, namely a first section adapted to provide turbulent flow and a second section adapted to provide laminar flow. Water flowing through the apparatus divides between the two sections in a ratio which is arranged to be independent of the total flow, the flow through the second section being saturated with oxygen. The apparatus thus provides a controlled concentration of oxygen. Temperature compensation is achieved by arranging for changes in the flow ratio caused by viscosity variations to compensate for variations in oxygen solubility.