Patents Examined by Tim R. Miles
  • Patent number: 5753147
    Abstract: A fuel delivery system for use with an internal combustion engine includes a fuel delivery device such as a carburetor 12, or a throttle body or port fuel injection fuel regulator 16, a fuel vaporizer 14 that provides the carburetor 12 with vaporized fuel, a fuel regulator 16 that regulates fluid characteristics of the fuel, and an electronic control module 18 that controls the fuel regulator 16. The fuel delivery device includes a body 22 having an inlet port 28 and an outlet port 30 and a throttle valve assembly 24 that regulates the air stream flowing through the body 22. The throttle valve assembly 24 is adapted to induce a vortex in the air stream, and to release vaporized fuel into the center of the vortex. An actuating mechanism 46 causes two vanes 42 and 44 to rotate in opposite directions, which induces the vortex.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: May 19, 1998
    Assignee: Inverness Family Trust
    Inventor: Paul H. Hudz
  • Patent number: 5753149
    Abstract: A nozzle assembly for use in a cooling tower having a hot water deck including a nozzle body positioned in an opening in the deck, the body having mounted at the bottom thereof a diffusion plate for diffusing water, a vortex crown member telescopically received within said nozzle body, the crown member having an orifice ring which defines an orifice opening through which water passes for engaging the diffusion plate, with the nozzle body and the crown member being locked to the deck when the crown member is fully telescopically received with the nozzle body.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: May 19, 1998
    Assignee: C. E. Shepherd Company, Inc.
    Inventors: Charles E. Shepherd, Hakija Kovic
  • Patent number: 5753148
    Abstract: A needle valve limiter cap of single-stage and two stage types having a hollow cylindrical outer body of rigid material, carrying a limiter arm. A spring steel hollow retainer clip sleeve is telescopically received in the body and has inwardly and outwardly protruding resilient barbs reversely oriented relative to one another to respectively engage the cap body and the needle valve shank to respectively prevent retrograde relative telescopic motion between the clip and the body and between the clip and valve shank. Easy seating of the single or two-stage caps into their locked first and/or second stage needle adjustment positions also produces an audible click and feel as the inwardly protruding spring barb(s) snap into a needle shank groove or grooves. A cap living-hinge type anti-tamper flap at the cap end prevents access of any adjustment tool to a needle valve head.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: May 19, 1998
    Assignee: Walbro Corporation
    Inventors: Eric L. King, George M. Pattullo, Karl P. Richter
  • Patent number: 5750056
    Abstract: A throttle-responsive device is provided which includes a lever which is selectively displaced from a remote point so as to actuate the primer bulb of an engine.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: May 12, 1998
    Assignee: Murray, Inc.
    Inventors: Richard James Pitman, Thomas Doyle Baggett
  • Patent number: 5746950
    Abstract: A drain assembly hose collection adapted to receive bleeder lines and/or overflow lines from a roof-supported evaporative cooler or the like in a manner which will help divert water flow away from the roof, thereby reducing serious staining and/or roof damage and at the same time providing a flexibility accommodating various plumbing and environmental ordinances.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: May 5, 1998
    Inventor: Robert Villanueva
  • Patent number: 5744072
    Abstract: Apparatus and a process for use in aeration of a fluid. The apparatus includes a tubular drive shaft having a first end and a second end. The first end is coupled to a selectively rotatable power source. A compressed air source is in fluid communication with the tubular drive shaft. A first propeller having a propeller shaft is coupled to the second end of the tubular drive shaft. An atomizing mechanism is located proximate the propeller shaft. The apparatus may further include a second propeller having a propeller shaft positioned between the first propeller and the second end of the tubular drive shaft. In another mode of operation, the aerator may be used solely as a mixer in an nitrification/de-nitrification process without the introduction of outside air or compressed air.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: April 28, 1998
    Assignee: Aeration Industries International, Inc.
    Inventor: Rudolf R. Karliner
  • Patent number: 5743240
    Abstract: A hand-guided, portable tool includes a housing and an internal combustion engine mounted in the housing. A fuel tank is mounted in the housing. The internal combustion engine has a carburetor with induction port for preparing a fuel/air mixture. An air filter is mounted in the housing. The air filter has a clean air side that is connected to the induction port. The internal combustion engine also has a control chamber with inlet valve. The control chamber is filled with fuel supplied thereto via the inlet valve from the fuel tank. The control chamber supplies fuel to the carburetor. The internal combustion engine has a compensation chamber delimited on one side by a control diaphragm that controls the inlet valve. The compensation line connects the compensation chamber to the clean air side of the air filter. The compensation line has a first connection section connected to the clean air side of the air filter and a second connection section connected to the compensation chamber.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: April 28, 1998
    Assignee: Andreas Stihl
    Inventors: Gerhard Zerrer, Manfred Reinhardt
  • Patent number: 5741443
    Abstract: An apparatus and method for introducing oxygen into a subsurface stratum of a thermally stratified body of water, while maintaining the thermal stratification thereof substantially undisturbed, comprising a closed flow path wherein water enters an inflow aperture, extends upwardly through an upflow chamber, through a horizontal chamber, downwardly through a downflow chamber, and through an outflow aperture. Both the inflow aperture and the outflow apertures are positioned within the subsurface stratum. Within the conduit is an aerator which introduces oxygen, an impeller which assists the flow of water through the conduit and which mixes water with oxygen, and a collector which collects undissolved gas within the conduit at the horizontal chamber. Outside the conduit, and above the outflow aperture, an interceptor means collects undissolved gas outside of the outflow aperture, and prevents vertical circulation of water discharged from the outflow aperture means.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: April 21, 1998
    Inventor: Andy Gemza
  • Patent number: 5741444
    Abstract: A humidor and method for high humidity, ambient temperature storage of items includes a water reservoir with a relatively large surface area which is gradually and uniformly heated in response to a humidity sensor. The temperature in the reservoir is raised at a rate of less than 1 degree Fahrenheit per 4 minutes to a maintained temperature of less than 5 degrees F. above ambient temperature until a desired humidity level is reached. The humidor enclosure includes convection heating elements which create a convection current between air inlets and outlets to draw fresh air into the humidor. A water level sensor in the water reservoir deactivates the reservoir heater and convection heating elements when the water level drops below a minimum level and simultaneously actives a water level low warning signal.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: April 21, 1998
    Assignee: Humicon Corporation
    Inventor: Richard A. Kasuli
  • Patent number: 5738807
    Abstract: An air bubble generating apparatus has an air supplying device integrated with a pump. The air bubble generating apparatus comprises a pump for pumping water and for receiving a vacuum at a center portion thereof during pumping the water, a driving source for driving the pump, and an air supplying device for supplying air for the water by using an air pressure difference between the center portion in the vacuum state and an atmosphere. The air supplying device includes a hollow shaft through which the air flows, a first valve assembly adjacent to a first end of the hollow shaft and screwed in a bearing holder of the driving source, and a second valve assembly arranged at a second end of the hollow shaft. When the pump is operated so that a vacuum pressure is generated in the pump, the solenoid valve opens, so that there is a difference in pressure between the pump and the air supplying device.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: April 14, 1998
    Assignee: Daewoo Electronics Co. Ltd
    Inventor: Sung-Dai Moon
  • Patent number: 5738808
    Abstract: A humidifier for an inhalant gas, which humidifies an inhalant gas having a controlled composition without invasion of bacteria by bringing a stream of the inhalant gas into contact with one side of a water vapor-permeable membrane which is in contact with liquid water on the other side.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: April 14, 1998
    Assignees: Asahi Glass Company Ltd., Asahi Glass Engineering Co., Ltd.
    Inventor: Junjiro Iwamoto
  • Patent number: 5736072
    Abstract: The present invention is directed to a device for producing carbonated water. The device includes a hermetic container, a first pipe member continually conducting a carbonic acid gas into an inner hollow space of the hermetic container, a second pipe member intermittently conducting pressurized water into the inner hollow space of the hermetic container in response to demand, and a third pipe member intermittently conducting carbonated water temporarily staying in the container to a location outside of the container in response to demand. A nozzle is connected to one end of the second pipe member and is disposed within the container at a top end thereof. The nozzle has a plurality of holes which allow the pressurized water to be downwardly injected into the inner hollow space of the container. A plate member may be disposed within the inner hollow space of the container.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: April 7, 1998
    Assignee: Sanden Corporation
    Inventor: Takeshi Satoh
  • Patent number: 5725810
    Abstract: The packing for a counterflow high pressure column contains an ordered array of shaped lamella aligned parallel to the column axis. The packing comprises a bundle of strings extending in the direction of the column axis. Each string consists of a stack of packing elements, with adjacent elements belonging to different strings respectively forming a packing section perpendicular to the column axis. Each packing element is constructed in layers formed by the lamella. The layers are oriented in such a manner that gap-like or channel-like intermediate spaces between the lamella are laterally bounded by transversely lying lamella of adjacent packing elements belonging to the same packing section.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: March 10, 1998
    Assignee: Sulzer Chemtech AG
    Inventors: Bernhard Brunner, Philipp Suess
  • Patent number: 5720906
    Abstract: A down-drafting constant vacuum pressure type diaphragm carburettor includes a carburettor body with an induction passage, a throttle valve, a Venturi portion variable of open area. A vacuum actuated valve is arranged at upstream side of the throttle valve across the induction passage and extending in horizontal direction from one side to the other side, and controls an open area of a Venturi portion depending upon a vacuum pressure generated in the Venturi portion. A jet needle is mounted on the vacuum actuated valve. A fuel control system including a diaphragm arranged between a recessed portion of the carburettor body and a cover covering for defining a regulator chamber at the side of the recessed portion and an atmospheric pressure chamber at the side of the cover, and a valve seat. The diaphragm is arranged at lower side of a longitudinal axis of the jet needle.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: February 24, 1998
    Inventors: Susumu Yamanaka, Katsuhiko Tsutsui, Masaru Asada, Shigemitsu Nitta
  • Patent number: 5720905
    Abstract: A cleaning apparatus including a housing holding an air pump, an ozone generator, a high voltage generator, a cooling fan and a bubble generator, wherein a mixing cylinder is connected between the air pump and an ozone output port of the ozonizer to mix ozone from the ozonizer with air from the air pump, permitting the mixture to be guided to the bubble generator for producing air bubbles when the bubble generator is put under water, the mixing cylinder including a stepped cylindrical body having a big diameter section connected to the air pump and a small diameter section longitudinally extended from the big diameter section and connected to the bubble generator, an air outlet at the periphery of the big diameter section, a pipe connected between the air outlet and an air input port of the ozonizer, an ozone inlet at the periphery of the small diameter section, a pipe connected between the ozone inlet and the ozone output port of the ozonizer, and an inside annular flange extended from one end of the small d
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: February 24, 1998
    Assignee: Liu Chang International Co., Ltd.
    Inventor: Hsi-Yin Ho
  • Patent number: 5718848
    Abstract: An evaporative air cooler evaporates water in multistages by passing air across a series of spaced parallel wetted wicks (11) which repeatedly interrupt air flow. This enhances both evaporation and heat transfer rates.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: February 17, 1998
    Assignee: F F Seeley Nominees Pty Ltd
    Inventor: Robert Wilton James
  • Patent number: 5718847
    Abstract: Drain apparatus drains an evaporative cooler housing by siphon action. The siphoning action is started when a pump which pumps water for cooler pads is turned off, and the water in a conduit flows downwardly and a valve is switched, directing the downwardly flowing water into a chamber disposed over the overflow standpipe in the housing. The water level in the chamber is the water level in the housing, and the down flowing water fills the chamber, causing the water to flow down the pipe and lowering the atmospheric pressure in the chamber to begin siphoning action. At the same time, a check valve at the bottom of the chamber opens to allow water from the housing to flow into the chamber to drain the housing. Several embodiments are disclosed, including embodiments in which siphoning action may be commenced by raising and lowering a drain hose connected to the standpipe.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: February 17, 1998
    Inventor: Robert L. Koble, Jr.
  • Patent number: 5716555
    Abstract: Disclosed is an adjustable apparatus for regulating the flow of fuel into a carburetor by use of a specially designed fuel metering rod. The hollow rod includes four different sets of holes along its sides at one end, each set separated from the adjacent sets by ninety degrees (90.degree.). The holes of each set are graduated from large to small, and each set covers a different range of hole sizes. The rod slides into a housing on the side of the carburetor, the holes regulating the amount of filtered fuel delivered to the carburetor. By sliding the rod, different sized holes on the rod line up with the exit opening in the housing to the carburetor. Sliding the rod also moves a linkage which causes the opening or closing of the air valves of the carburetor. The rod may be removed and rotated (either 90.degree., 180.degree. or 270.degree.) to allow a different set of holes to line up with the exit opening to the carburetor.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: February 10, 1998
    Assignee: Concerned Shareholders
    Inventors: Vernon T. Mullican, Edwin G. Mulligan
  • Patent number: 5711902
    Abstract: Disclosed is a gas-induced reactor which mainly includes a tank body without inner baffles and a draft tube with inner baffles mounted in the tank body. An upper and a lower turbines are installed in series on a shaft of said tank body and enclosed by the draft tube. The turbines each have six 45.degree. pitched, rectangular, flat blades. When the two turbines rotate at high speed to agitate gas and liquid in the draft tube, a downward regular gas vortex is formed at a center of liquid surface in the tank body above the draft tube. The regular gas vortex is pulled inward to the draft tube and is disturbed by the baffles in the draft tube to become an irregular gas vortex in the draft tube. The irregular gas vortex is broken by the rotating turbines into bubbles which are angularly distributed out of the draft tube and into liquid in the tank body.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: January 27, 1998
    Inventor: Yung-chien Hsu
  • Patent number: 5709822
    Abstract: A fuel regulating method and mechanism for a rotary throttle (barrel-type) carburetor which prevents an end-user A/F adjustment that would cause increase in fuel quantity to a level in excess of a regulated value so as to comply with the exhaust gas emissions regulations. A cylindrical throttle valve having a throttle hole is disposed in an air intake passage of the carburetor body 12, the air flow is controlled by rotation of the throttle valve and the fuel flow is controlled by the position of a fuel regulating needle, attached to the throttle valve, relative to a fuel jet port of a fuel supply pipe in the carburetor body due to axial movement of the throttle valve. A bypass passage is provided within the carburetor body to communicate the throttle valve hole and fuel jet area with the air intake passage upstream of the throttle valve.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: January 20, 1998
    Assignee: Walbro Corporation
    Inventor: Michiyasu Togashi