Float Controlled Patents (Class 261/70)
  • Patent number: 10758702
    Abstract: The present disclosure discloses a humidification device, and a humidifier and a ventilator to overcome deficiencies in the prior art such as the heating efficiency of a ventilator being relatively low when the amount of water in a humidification device is adequate. The humidification device comprises a heating area and a liquid conveying device conveying a liquid to the heating area, the liquid conveying device comprising a liquid inlet pipeline, the liquid inlet pipeline extending into the heating area and extending to a bottom of the heating area, and a reserved interval being provided between an outlet of the liquid inlet pipeline and the bottom of the heating area. According to the embodiments of the present disclosure it is ensured that the heating efficiency may be increased and the heating time may be reduced in the case of continuous use.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: September 1, 2020
    Assignee: BMC MEDICAL CO., LTD.
    Inventors: Lijun Liu, Jianxin Zhi, Zhi Zhuang
  • Patent number: 10709866
    Abstract: A humidification system for delivering humidified gases to a user can include a heater base, humidification chamber having an inlet, outlet, and associated fluid conduit, and breathing circuit including a supply conduit, inspiratory conduit, and optional expiratory conduit. The humidification system can include various features to help make set-up less difficult and time-consuming. For example, the supply conduit, inspiratory conduit, and optional expiratory conduit can be coupled into a one-piece circuit to aid set-up. Various components can be color-coded and can have corresponding structures to indicate which components should be connected to one another during set-up. Such features can also help make the set-up process more intuitive for an operator, which can reduce the need for specialized training and reduce the number of potential errors.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: July 14, 2020
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Sally Margaret Hensman, David Robert Kemps, Simon Mordechai Stam, Jason Allan Klenner, Andrew Paul Maxwell Salmon, Mark Samuel Hamilton, James William Stanton, Michael John Andresen, Jonathan Andrew George Lambert, Nicholas Edward Vaughan
  • Patent number: 9206708
    Abstract: A steam turbine direct contact condenser prevents cooling water sprayed from spray nozzles from reaching turbine blades of an axial-flow turbine, while introducing turbine exhaust gases exhausted by a steam turbine in the horizontal direction to cool such gases. The condenser includes an exhaust gas inlet part that introduces the turbine exhaust gases containing steam of the steam turbine and non-condensable gases in the horizontal direction, a steam cooling chamber that sprays cooling water to the introduced turbine exhaust gases to cool them, and a water storage disposed at the bottom of the steam cooling chamber that stores condensed water cooled from the steam and the cooling water. The steam cooling chamber includes a first cooling water spraying mechanism and a second cooling water spraying mechanism.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: December 8, 2015
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Takashi Moriyama, Ryoji Muramoto, Yoshiki Oka
  • Patent number: 8517356
    Abstract: A ventilation device and a controlling method of the same are provided. The ventilation device may include a humidifier having improved humidification efficiency and improved durability.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: August 27, 2013
    Assignee: LG Electronics Inc.
    Inventors: Tae Man Yang, Jeong Hun Kim, Hyung Ho Park
  • Publication number: 20130200536
    Abstract: A humidifier has a continuous water flow system with total water recovery and no loss, for maximum efficiency. The unit has a fan with a motor, a transformer, and a circuit hoard, a water tank, and a hood that directs the water vapor into a duct system of a residence. The unit uses multiple ultrasonic transducers positioned at the bottom of a water chamber that transform electrical energy into mechanical energy through vibration. The vibration excites the water molecules separating them into particles having a diameter of about 10 microns for circulation through a home.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Inventors: Peter Seremetis, Rosario Milana, Clifford Hedquist
  • Publication number: 20130154133
    Abstract: A method of making a carburetor float by first creating a homogeneous mixture of gas and polymer in a plastic injection machine. The gas/polymer mixture is injected into a tool having a mold cavity. A moveable portion of the mold cavity allows the gas/polymer mixture to expand in that area thus forming a foamed portion of the finished float. The portion of the mold that is stationary does not allow the gas/polymer mixture to foam and thus forms a portion of the finished float with a higher density that the foamed portion. The result is a float made of the homogeneous mixture with two differing densities in two different portion of the float.
    Type: Application
    Filed: November 16, 2012
    Publication date: June 20, 2013
    Applicant: Hoffer Plastics Corporation
    Inventor: Hoffer Plastics Corporation
  • Patent number: 8430379
    Abstract: An apparatus for dispensing fog by means of continually discharging water particles for humidification, sanitation, and dust suppression. The apparatus provides the user a device that utilizes pressurized gases for the de-correlation of water to generate and dispense water particles. The present invention makes use of a uniquely structured nozzle to dispense water particles that will not be attracted to one another.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: April 30, 2013
    Inventor: Ido Goldstein
  • Publication number: 20120267804
    Abstract: A room humidifying apparatus is provided which operates with minimum cost and without any electrical power. The humidifier is located so as to make use of a stream of air coming from a register. The humidifier has a casing carrying a main water tank, a water pan and an evaporative filter element which are located in the casing. The tank drips water onto the filter element, which has a lower portion located in the water pan to collect any excess water dripping down the filter element and also to moisten it with capillary effect. Heated air from the register becomes humidified on passing through the filter element. The water tank can be filled manually from the top or be detachable and filled through a bottom refill opening. Alternatively, the water tank can be connected to a water source with a valve to regulate the flow of water into the water tank. The water tank may be balanced so as to displace, for example tilt, from a first position when it contains water to a second position when it is empty.
    Type: Application
    Filed: March 20, 2012
    Publication date: October 25, 2012
    Inventors: Jeri Rodrigs, James Henderson, Kevin J. Bailey
  • Patent number: 8231110
    Abstract: A roll-over valve attaches over an existing carburetor float bowl vent tube and closes when a car is involved in a crash to prevent or reduce fuel from escaping from a tilted or inverted carburetor and starting a fire. Carburetors are used in many special interest cars and race cars. The carburetors include float bowls containing fuel and the float bowls are vented to outside air by the carburetor vent tubes. The carburetor vent tubes are generally vertical tubes reaching upward from the carburetor into an air cleaner or the volume above the carburetor. The roll-over valve includes a compression fitting or other connector and is easily fitted to the carburetor.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: July 31, 2012
    Inventor: Dale A. Stoner
  • Patent number: 8181940
    Abstract: A humidification chamber for use in a breathing circuit to humidify gases before inhalation is disclosed. The humidification chamber is adapted to contain a volume of liquid, and includes a gas inlet port, a gas outlet port, and a fluid inlet for introducing liquid into the humidification chamber. The fluid inlet is provided with a primary valve seat and a secondary valve seat. An actuating member engages the primary valve seat when liquid within the humidification chamber is at or above a predetermined acceptable level. The actuating member is deformable in response to an increase in liquid level above the predetermined acceptable level to a deformed configuration in engagement with the secondary valve to prevent liquid from flowing through the fluid inlet into the humidification chamber.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 22, 2012
    Assignee: Intersurgical AG
    Inventors: Simon Robert Payne, Keethan Fernando
  • Patent number: 8181938
    Abstract: A humidification chamber (10) for use in a breathing circuit to humidify gases before inhalation is disclosed. The humidification chamber (10) is adapted to contain a volume of liquid (20), and comprises a gas inlet port (16), a gas outlet port (16) and a fluid inlet (30) for introducing liquid into the humidification chamber (10). The fluid inlet (30) is provided with a filter member (60) including a plurality of exit apertures for enabling flow of liquid through the filter member (60). The filter member (60) also defines a collection chamber (69) that is disposed below the exit apertures, in use, such that foreign objects in the liquid that are unable to pass through the exit apertures fall under the influence of gravity into the collection chamber (69).
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: May 22, 2012
    Assignee: Intersurgical AG
    Inventors: Simon Robert Payne, Keethan Fernando
  • Publication number: 20120104635
    Abstract: An apparatus for dispensing fog by means of continually discharging water particles for humidification, sanitation, and dust suppression. The apparatus provides the user a device that utilizes pressurized gases for the de-correlation of water to generate and dispense water particles. The present invention makes use of a uniquely structured nozzle to dispense water particles that will not be attracted to one another.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Inventor: Ido GOLDSTEIN
  • Publication number: 20120012186
    Abstract: An evaporation chamber comprises a trough and an intermediate chamber disposed above the trough. The bottom of the intermediate chamber includes a liquid outlet through which liquid flows from the intermediate chamber into the trough. The intermediate chamber comprises a level valve, which allows a flow of liquid to follow from a liquid connection into the intermediate chamber so that the liquid level in the intermediate chamber is between a minimum level and a maximum level. The intermediate chamber has a liquid connection, a level valve, and a compensation connection. The liquid connection supplies a liquid. The level valve, allows a flow of liquid to follow from the liquid connection into the intermediate chamber so that the liquid level in the intermediate chamber is between a minimum level and a maximum level. The compensation connection is pneumatically connected to the gas space around the float.
    Type: Application
    Filed: August 30, 2011
    Publication date: January 19, 2012
    Applicant: seleon GmbH
    Inventors: Malinda Tantra, Martin Baecke
  • Publication number: 20110291306
    Abstract: A roll-over valve attaches over an existing carburetor float bowl vent tube and closes when a car is involved in a crash to prevent or reduce fuel from escaping from a tilted or inverted carburetor and starting a fire. Carburetors are used in many special interest cars and race cars. The carburetors include float bowls containing fuel and the float bowls are vented to outside air by the carburetor vent tubes. The carburetor vent tubes are generally vertical tubes reaching upward from the carburetor into an air cleaner or the volume above the carburetor. The roll-over valve includes a compression fitting or other connector and is easily fitted to the carburetor.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Inventor: Dale A. Stoner
  • Publication number: 20110156289
    Abstract: A device for humidifying breathing air for artificial respiration of mammals, in particular human beings, includes at least one essentially closed container for receiving water, a first opening for letting in the non-humidified air and a second opening for letting out humidified air, and an inlet for supplying the water to the container. The inlet is located in the upper part of the container, which is adjoined by a tube essentially crossing through the container interior, and on the free end of the tube, a valve is disposed, which limits the level of the water supplied via the tube in such a way that the container bottom in the container interior is essentially covered with water.
    Type: Application
    Filed: November 4, 2010
    Publication date: June 30, 2011
    Inventors: Helge STEG, Leif Hall
  • Publication number: 20100244289
    Abstract: An embodiment in accordance with the present invention provides a humidifier including a universal, valved humidification column and a water reservoir for use with a breathing circuit. In accordance with the present invention, the universal valved humidification column includes a float valve which controls the water level in the column. Additionally, the water reservoir includes a gas permeable vent to control the pressure within the water reservoir.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Inventor: Gary Roth
  • Patent number: 7780150
    Abstract: A fuel supply device for an engine includes a fuel tank positioned such that, at least when the fuel tank is filled with fuel, a first fuel level in the fuel tank is higher than a minimum required second fuel level in a float chamber. A bypass passage that bypasses a fuel pump is provided, and an on-off valve is disposed in the bypass passage. The fuel supply device is capable of improving a starting characteristic of the engine during an off period of the fuel pump without increasing a head difference between the first and second fuel levels.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: August 24, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Toshiyuki Yamazaki
  • Publication number: 20100171229
    Abstract: A humidification chamber (10) for use in a breathing circuit to humidify gases before inhalation is disclosed. The humidification chamber (10) is adapted to contain a volume of liquid (20), and comprises a gas inlet port (16), a gas outlet port (16) and a fluid inlet (30) for introducing liquid into the humidification chamber (10). The fluid inlet (30) is provided with a filter member (60) including a plurality of exit apertures for enabling flow of liquid through the filter member (60). The filter member (60) also defines a collection chamber (69) that is disposed below the exit apertures, in use, such that foreign objects in the liquid that are unable to pass through the exit apertures fall under the influence of gravity into the collection chamber (69).
    Type: Application
    Filed: August 10, 2007
    Publication date: July 8, 2010
    Applicant: INTERSURGICAL AG
    Inventors: Simon Robert Payne, Keethan Fernando
  • Patent number: 7722016
    Abstract: A float for a humidification chamber has formed-in-place conformable seal, which may be accomplished by overmolding a thermoplastic elastomeric material to the float. The float may be comprised of sections sealingly joined together at an elevation above the water level defined by the buoyancy of the float and also above the water level within the humidifier chamber when filled.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 25, 2010
    Assignee: Medex Cardio-Pulmonary, Inc.
    Inventors: Keith J. Bradley, Walter R. Sanders
  • Publication number: 20090230572
    Abstract: A drum humidifier is designed for use with a forced air furnace and includes a housing including a base, a first side wall, a second side wall and a top. A removable water pan is positioned to be supported by the base. Water is maintained in the water pan by a watering means, the watering means comprising a float. A movable water pan floor, the water pan floor having an operating position and a maintenance position. The water pan floor is substantially coplanar with the base and is positioned under at least a portion of the water pan in the operating position. The water pan floor is moved to a maintenance position to allow removal of the water pan around a float while the water pan remains in a substantially horizontal position.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 17, 2009
    Inventor: Donald N. Jursich
  • Publication number: 20090051054
    Abstract: A fuel supply device for an engine includes a fuel tank positioned such that, at least when the fuel tank is filled with fuel, a first fuel level in the fuel tank is higher than a minimum required second fuel level in a float chamber. A bypass passage that bypasses a fuel pump is provided, and an on-off valve is disposed in the bypass passage. The fuel supply device is capable of improving a starting characteristic of the engine during an off period of the fuel pump without increasing a head difference between the first and second fuel levels.
    Type: Application
    Filed: July 17, 2008
    Publication date: February 26, 2009
    Applicant: YAMAHA MARINE KABUSHIKI KAISHA
    Inventor: Toshiyuki YAMAZAKI
  • Publication number: 20080276911
    Abstract: Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valve actuation device stops flow of fuel in one or more of the plurality of fluid paths and the carburetor is adapted to be drained of fuel during engine shutdown to reduce or prevent evaporative emissions from the fuel system. The carburetor is preferably designed so as to minimize a volume of fuel contained therein.
    Type: Application
    Filed: July 15, 2008
    Publication date: November 13, 2008
    Applicant: Walbro Engine Management, L.L.C.
    Inventor: John C. Woody
  • Patent number: 7398962
    Abstract: Replacement of the fuel metering jets of an internal combustion engine carburetor, such as a Holley.RTM. or Demon.RTM. Carburetor is greatly simplified by fuel float bowls which permit the jets to face upward. The jets are removed through access holes in the upper wall of the float bowl by a screwdriver/gripping tool. The float has access holes which are aligned to the upper wall holes to provide direct access to the fuel metering jets.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: July 15, 2008
    Inventor: Patrick Cooper
  • Publication number: 20080054500
    Abstract: A float for a humidification chamber has formed-in-place conformable seal, which may be accomplished by overmolding a thermoplastic elastomeric material to the float. The float may be comprised of sections sealingly joined together at an elevation above the water level defined by the buoyancy of the float and also above the water level within the humidifier chamber when filled.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Applicant: MEDEX CARDIO-PULMONARY, INC.
    Inventors: Keith J. Bradley, Walter R. Sanders
  • Patent number: 7152852
    Abstract: A float bowl type carburetor has a fuel and air mixing passage extending therethrough, a float bowl assembly, a priming pump communicated with the float bowl assembly and a fuel supply pipe that is communicates fuel in the float bowl assembly with the fuel and air mixing passage. The priming pump is operable to deliver pressurized fluid into the float bowl assembly in the area of the fuel supply pipe. Preferably, the priming pump discharges fluid in line with the fuel supply pipe so that at least some of the fluid discharged from the priming pump flows directly into the fuel supply pipe to facilitate delivering a rich fuel and air mixture to the engine to facilitate starting the engine.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: December 26, 2006
    Assignee: Walbro Japan, Inc.
    Inventors: Katsushi Habu, Azuma Ohji, Hidenobu Takahashi, Toshimasa Takahashi, Takeshi Kobayashi
  • Patent number: 7066452
    Abstract: A filtering system for use with a reservoir. The filter system includes a filter assembly capable of filtering particles sized 1.0 micrometers and larger and may, include a flow control device positioned to selectively provide fluid flow to the filter assembly. The flow control device may include an electrically actuated valve, such as a solenoid valve. The filter system may also include a fluid level detection mechanism operatively connected to the flow control valve.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: June 27, 2006
    Assignee: Honeywell International Inc.
    Inventors: Leisha J. Rotering, Timothy J. Kensok
  • Patent number: 6874768
    Abstract: Fuel bowls are placed on opposite sides of a carburetor, and a fuel transfer tube extends between the fuel bowls. External fuel receiving fixtures are mounted in fluid communication with the fuel bowls and have nipples facing each other. The fuel transfer tube is telescopically mounted at its ends to the nipples and O-rings seal the ends of the tubes to the nipples.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: April 5, 2005
    Inventor: Barry S. Grant
  • Patent number: 6763845
    Abstract: An automatic water freeze prevention device having a first valve, second valve and third valve that cooperate to fill or drain a water utilization device according to pre-selected temperature conditions. These three valves are driven to their respective open/closed positions by an electrical power sending device that is, in turn, actuated by a temperature setting device that is associated with a temperature sensing device.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: July 20, 2004
    Inventor: Javier J. Hoggard
  • Patent number: 6746002
    Abstract: A fuel expansion system or carburetor for internal combustion engines utilizing the bubbling of air through use of a number of bubble tubes through a supply of liquid fuel. The resulting atomized, vaporized and expanded fuel is then mixed with air and fed into the engine for combustion.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: June 8, 2004
    Inventor: Thomas R. Jones
  • Patent number: 6739584
    Abstract: To prevent a fuel liquid surface within a float chamber from rising when a liquid surface change occurs to make a float rotate so that a float valve opens a valve seat hole, a first float (F3) is arranged in one outer side from one end (F4) of the bearing portion (F1) and in one side (B), one end (F4) of the bearing portion (F1) and the first float (F3) are connected by a first connecting arm portion (F6), a second float (F7) is arranged in another outer side from another end (F8) of the bearing portion (F1) and in one side (B), another end (F8) of the bearing portion (F1) and the second float (F7) are connected by a second connecting arm portion (F19), a first buffer rib (F12) is integrally formed between an outer side surface (F6A) of the first connecting arm portion (F6) and another side surface (F5) of the first float (F5), and a second buffer rib (F13) is integrally formed between an outer side surface (FIOA) of the second connecting arm portion (F10) and another side surface (F9) of the second float (F7
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 25, 2004
    Assignee: Keihin Corporation
    Inventors: Yuki Fujino, Akira Akabane
  • Patent number: 6729608
    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.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 4, 2004
    Inventor: Robert Joseph Del Sole
  • Patent number: 6726185
    Abstract: A carburetor structure in which gasoline cannot leak out of a carburetor vent tube when oriented at an angle larger than ninety degrees with respect to the vertical.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: April 27, 2004
    Inventor: Robert Joseph Del Sole
  • Publication number: 20040070091
    Abstract: A filtering system for use with a reservoir. The filter system includes a filter assembly capable of filtering particles sized 1.0 micrometers and larger and may, include a flow control device positioned to selectively provide fluid flow to the filter assembly. The flow control device may include an electrically actuated valve, such as a solenoid valve. The filter system may also include a fluid level detection mechanism operatively connected to the flow control valve.
    Type: Application
    Filed: August 7, 2003
    Publication date: April 15, 2004
    Applicant: Honeywell International Inc.
    Inventors: Leisha J. Rotering, Timothy J. Kensok
  • Publication number: 20040012101
    Abstract: A process and apparatus for periodically dumping liquids in an installation, in which liquids are recycled or otherwise accumulate dissolved and/or suspended contaminants, which process and apparatus makes use of a container for a liquid which is alternately filled and drained during operation of the installation, resulting in changing weight or buoyancy of the container or level of a float in the container, which actuates a dumping valve when a given critical weight, buoyancy or float level is exceeded or reduced.
    Type: Application
    Filed: August 11, 2003
    Publication date: January 22, 2004
    Inventor: Alan Dale Wright
  • Patent number: 6672571
    Abstract: A fuel removal system for a carburetor with a float bowl carried by a body having a channel extending from the float bowl to the exterior of the carburetor body. An outlet tube is positioned within the channel and is movable from a first position wherein liquid fuel can be removed from the fuel bowl to the exterior of the body, and a second position wherein the outlet tube does not communicate with the float bowl.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: January 6, 2004
    Assignee: Walbro Engine Management LLC
    Inventors: Bryan K. Gangler, Albert L. Haas
  • Publication number: 20030201553
    Abstract: A fuel removal system for a carburetor with a float bowl carried by a body having a channel extending from the float bowl to the exterior of the carburetor body. An outlet tube is positioned within the channel and is movable from a first position wherein liquid fuel can be removed from the fuel bowl to the exterior of the body, and a second position wherein the outlet tube does not communicate with the float bowl.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 30, 2003
    Inventors: Bryan K. Gangler, Albert L. Haas
  • Patent number: 6554258
    Abstract: A carburetor float bowl. The float bowl includes a float adapted to be flotationally supported by liquid fuel in the float bowl over a predetermined range of the level of fuel therein. A fuel inlet is adapted to direct fuel along a line toward the floor of the float bowl. The float bowl further includes a “fuel chute” having a ramping surface, a portion of which is intersected by said line at a point thereon. The ramping surface is disposed to provide a ramp angle at the point with respect to the floor that is substantially greater than 90 degrees and substantially less than 180 degrees.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: April 29, 2003
    Assignee: POW Engineering, Inc.
    Inventor: David Braswell
  • Publication number: 20030030156
    Abstract: To prevent a fuel liquid surface within a float chamber from being rised when a liquid surface change occurs to make a float rotate so that a float valve opens a valve seat hole, a first float (F3) is arranged in one outer side from one end (F4) of the bearing portion (F1) and in one side (B), one end (F4) of the bearing portion (F1) and the first float (F3) are connected by a first connecting arm portion (F6), a second float (F7) is arranged in another outer side from another end (F8) of the bearing portion (F1) and in one side (B), another end (F8) of the bearing portion (F1) and the second float (F7) are connected by a second connecting arm portion (F19), a first buffer rib (F12) is integrally formed between an outer side surface (F6A) of the first connecting arm portion (F6) and another side surface (F5) of the first float (F5), and a second buffer rib (F13) is integrally formed between an outer side surface (F10A) of the second connecting arm portion (F10) and another side surface (F9) of the second floa
    Type: Application
    Filed: July 24, 2002
    Publication date: February 13, 2003
    Inventors: Yuki Fujino, Akira Akabane
  • Patent number: 6454246
    Abstract: A carburetor has an upper body and a lower separate nozzle post member that extends into the fuel chamber of a lower fuel bowl. The nozzle post member has a main nozzle mixing passage leading from a main fuel jet inlet to a nozzle. An annular air passage and an annular idle fuel passage surround the mixing passage. The nozzle post member also has integrally formed brackets to pivotally mount the fuel float.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: September 24, 2002
    Assignee: Walbro Corporation
    Inventors: Timothy K. Grifka, Terry O. Hendrick, Kevin L. Israelson, Eric L. King, Albert L. Sayers, John C. Woody
  • Patent number: 6439548
    Abstract: To provide an overflow device for suppressing undue emission of fuel from an overflow pipe which can be produced with a simple structure at a low cost, and can be simply applied also to any existing carburetors. An overflow device for a float type carburetor includes an overflow pipe having an upper end opening exposed to a space in a float chamber defined above a constant fuel level in the float chamber, and a shield member arranged above the constant fuel level for forming a shielded space in the vicinity of the upper end opening. The shield member has a side wall vertically extending above and below the upper end opening, a top wall positioned above the upper end opening, and a bottom wall positioned below the upper end opening. The bottom wall is formed with fuel holes for allowing the fuel to flow into and out of the shielded space. The side wall is formed with small vent holes capable of suppressing the entry of the fuel into the shielded space.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: August 27, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Akinobu Masunaga
  • Patent number: 6435482
    Abstract: A carburetor for a general purpose engine is structured by a carburetor barrel body having an air horn which is made of metal so as to have an ensured mechanical strength, a constant level fuel bowl coupled to the carburetor barrel body, and a fuel trunk with fuel wells and passageways leading to the air horn from the wells which is made of synthetic resin separately from the carburetor barrel body and installed so as to extend into the fuel bowl from the carburetor barrel body. The carburetor prevents or significantly reduces evaporation of fuel in the wells during an engine stop and also prevents or significantly reduces evaporation of fuel introduced into the fuel bowl at an engine restart even if the fuel in the wells evaporates, with an effect of improving performance of restarting the engine at high temperatures.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: August 20, 2002
    Assignee: Nippon Carburetor Co., Ltd.
    Inventors: Masaaki Omi, Wataru Takahashi
  • Patent number: 6427984
    Abstract: An evaporative humidifier including a base removably supporting a water tray for holding a quantity of water. A blower assembly and a water tank are removably supported by the base above the water tray. The blower assembly includes a housing and a fan disposed intermediate a pair of air inlets and an air exhaust outlet. A cylindrically shaped wick filter is supported by the water tray and extends upwardly into the housing. The wick filter includes a cylindrical side wall and opposing open upper and lower ends. The fan is driven by a motor mounted inside the housing for drawing air into the housing through the air inlets, through the cylindrical side walls of the wick filter, and then through the open upper end of the wick filter and out of the housing through the air exhaust outlet.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: August 6, 2002
    Assignee: Hamilton Beach/Proctor-Silex, Inc.
    Inventors: Patrick T Mulvaney, Michael E. Smith, Anthony V. Cruz
  • Publication number: 20020070465
    Abstract: A humidification system having a humidifier housing having a supply water inlet and an excess water outlet, which excess water outlet is in fluid communication with a water reservoir vessel. A pump is provided by way of which water in the water reservoir vessel is circulated to the supply water inlet of the humidifier housing.
    Type: Application
    Filed: December 7, 2000
    Publication date: June 13, 2002
    Inventors: Gerald Stephen Harvel, William Anthony Wangler, Ralph Lipsey Barnett
  • Patent number: 6394427
    Abstract: A housing is permanently connected to a water supply of a building and includes an evaporative water panel allowing water to flow downwardly and wick upwardly. A circulating device is provided for directing air from the building through the water panel. A reservoir is positioned in the housing for supporting the water panel and holding excess water deposited from the water panel. A water distributor is supplied for moving water from the water supply to a top of the water panel. A water control arrangement is responsive to the water level therein for automatically controlling the flow of water to the water panel to provide a desired humidity level in the building.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: May 28, 2002
    Assignee: Research Products Corp.
    Inventors: Timothy L. Guetersloh, Robert C. LaMuro, Eric L. Brodsky, Roger M. Pasch
  • Patent number: 6364291
    Abstract: Fuel bowl (10) is to be mounted to a metering block and to a carburetor of a high performance internal combustion engine. The fuel bowl housing (12) includes an inner fuel cavity or chamber (14) and a supplemental fuel storage chamber (44) (FIG. 1). A stuffer block (50) (FIGS. 2-6) is optionally placed in the supplemental fuel storage area so as to reduce the amount of fuel carried in the fuel bowl. As an alternative, a fuel dam (52) (FIGS. 6-10) can be placed between the inner fuel chamber (14) and the supplemental fuel chamber (44) to prevent sloshing of the fuel between the chambers and to supply a steady feed of supplemental fuel from the supplemental fuel storage chamber through the openings (82) to the inner fuel chamber (14) during high capacity use of fuel by the engine.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: April 2, 2002
    Inventor: Barry Grant
  • Publication number: 20010054773
    Abstract: A carburetor float bowl. The float bowl includes a float adapted to be flotationally supported by liquid fuel in the float bowl over a predetermined range of the level of fuel therein. A fuel inlet is adapted to direct fuel along a line toward the floor of the float bowl. The float bowl further includes a “fuel chute” having a ramping surface, a portion of which is intersected by said line at a point thereon. The ramping surface is disposed to provide a ramp angle at said point with respect to the floor that is substantially greater than 90 degrees and substantially less than 180 degrees.
    Type: Application
    Filed: June 21, 2001
    Publication date: December 27, 2001
    Inventor: David Braswell
  • Patent number: 6286817
    Abstract: The present invention relates to a fuel bowl for a carburetor for an internal combustion engine. The fuel bowl includes a fuel bowl housing (18) having an inner fuel cavity (22) and opposed lateral sides (54), and a sight glass (58) provided in at least one of the opposed lateral sides of the fuel bowl housing positioned such that the nominal operating fuel level within the fuel bowl is approximately level with the center of the sight glass. The sight glass includes an outer frame (62) and a clear panel (64), wherein the level of fuel contained within the inner fuel cavity of the fuel bowl can be viewed through the view window of the sight glass.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: September 11, 2001
    Inventor: Barry Grant
  • Publication number: 20010013665
    Abstract: To provide an overflow device for suppressing undue emission of fuel from an overflow pipe which can be produced with a simple structure at a low cost, and can be simply applied also to any existing carburetors. An overflow device for a float type carburetor includes an overflow pipe having an upper end opening exposed to a space in a float chamber defined above a constant fuel level in the float chamber, and a shield member arranged above the constant fuel level for forming a shielded space in the vicinity of the upper end opening. The shield member has a side wall vertically extending above and below the upper end opening, a top wall positioned above the upper end opening, and a bottom wall positioned below the upper end opening. The bottom wall is formed with fuel holes for allowing the fuel to flow into and out of the shielded space. The side wall is formed with small vent holes capable of suppressing the entry of the fuel into the shielded space.
    Type: Application
    Filed: December 28, 2000
    Publication date: August 16, 2001
    Inventor: Akinobu Masunaga
  • Patent number: 5938985
    Abstract: A bubbler container assembly particularly adapted for se in vapor generating systems including a main outer vessel, an inner bubbler vessel, a carrier gas inlet and a vapor outlet such that the inner bubbler vessel is contained within the main outer vessel and the bubbler container assembly is constructed so as to self-meter an incoming supply of vaporizable liquid during the introduction of a carrier gas and extraction of resulting vapor. Preferably, the system further provides for magnetic induced centering and positioning of the inner buoyant bubbler vessel, fluid temperature sensing and control, connection of a fluid makeup supply, carrier gas inlet supply, and vapor extraction outlet.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: August 17, 1999
    Assignee: Icon Dynamics LLC
    Inventor: Donald B. Rodgers
  • Patent number: 5916489
    Abstract: A float of synthetic resin for carburetors includes a base having a mounting portion for mounting the float in a float chamber; two float parts arranged opposite to each other, swinging in accordance with an amount of fuel in the float chamber; and an arm portion connected to the base at one place in its longitudinal direction, connecting the two float parts to its ends. The arm portion is configure so that a sectional area perpendicular to the longitudinal direction is small in a region surrounded by the two float parts and is larger in an opposite region. In this way, the arm portion is not deformed in the region surrounded by the two float parts in the cooling process of molding fabrication, and a float for carburetors of predetermined shape can be manufactured at low cost.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: June 29, 1999
    Assignee: Enplas Corporation
    Inventor: Youichi Takeuchi