With Second Diverse Control Patents (Class 137/389)
  • Publication number: 20150107676
    Abstract: A system and methods for automatically actuating a valve are provided herein. The method includes energizing sensors, a controller and an actuator with power that is generated locally at the site of the valve.
    Type: Application
    Filed: August 29, 2014
    Publication date: April 23, 2015
    Inventors: Jesse J. Green, Brad Andrews
  • Patent number: 8950428
    Abstract: An automatic rain barrel is disclosed, providing the ability to easily use a mix of rainwater and water from another source for tasks such as watering landscaping.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: February 10, 2015
    Inventor: George Sly
  • Patent number: 8931510
    Abstract: A rail vehicle contains a sanitary system which has a waste water tank and a fresh water tank which are each equipped with associated filling level sensors. A control device is provided for establishing a link in terms of control between the filling levels in the fresh water tank and waste water tank. The control device monitors the filling level in the waste water tank by associated sensors and controls the filling level in the fresh water tank as a function of a measured filling level in the waste water tank.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: January 13, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ralph Gaertner, Torge Kamphausen, Walter Lindermuth
  • Publication number: 20140366512
    Abstract: A conveying unit which can be mounted in a tank for conveying a liquid additive from the tank includes a filling level sensor which can emit and receive waves that are reflected back to the filling level sensor at a surface of liquid in the tank, so that a filling level measurement can be carried out by measuring the transit time of the waves. The conveying unit has at least one additional sensor device or sensor with which it is possible to determine if there is frozen additive in the tank. A tank for storing a liquid additive, a motor vehicle having the conveying unit and a method for determining a liquid additive quantity in a tank are also provided.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: JAN HODGSON, JOERG-ROMAN KONIECZNY
  • Patent number: 8887747
    Abstract: A level control system is provided. The system includes multiple sensors configured to measure multiple parameters related to a drum, wherein the multiple parameters include a drum liquid level, a vapor flow rate leaving the drum, a downstream pressure of the drum, and a feed-liquid flow rate entering the drum. The system also includes a level controller configured to adjust a level control valve in accordance with a signal representative of the drum liquid level, a signal representative of the downstream pressure and a signal representative of a given drum liquid level set point. The level controller is further configured to receive a feedback signal representative of a combination of a fraction of the signal representative of the drum liquid level and a fraction of the signal representative of the downstream pressure.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: November 18, 2014
    Assignee: General Electric Company
    Inventors: Rajeeva Kumar, Charles William Weidner, Steven Di Palma
  • Publication number: 20140283928
    Abstract: A flow amount control apparatus is configured to include a supply tank for storing a liquid, a main pipe having a first open end connected to the tank and a second open end disposed lower than the first end for transferring the liquid from the tank to the second end, a supply valve capable of preventing the liquid from flowing into the main pipe, the supply valve being placed between the tank and the second end, a branch pipe having a third open end connected to the main pipe at a position between the supply valve and the second end and a fourth open end disposed above the third end, a flow amount adjustment means for controlling an amount of the flowing liquid, a liquid level detection unit for detecting a liquid level in the branch pipe, a timer, and a controller for controlling the flow amount adjustment means.
    Type: Application
    Filed: September 12, 2013
    Publication date: September 25, 2014
    Applicant: NITTO SHOJI, LTD.
    Inventors: Yasuyuki TAMATE, Shigeru HAYAMA
  • Patent number: 8607730
    Abstract: An apparatus and method of replacing a liquid of a circulation line in a substrate liquid processing apparatus of a single-wafer type, which can replace the liquid more efficiently, by relating the replacing method with a process-liquid replenishing method. A substrate liquid processing apparatus of a single-wafer type includes: a circulation line through which a process liquid is circulated; a tank disposed in the circulation line; a liquid level sensor disposed in the tank; a liquid replenish part configured to replenish the tank with a new process liquid, based on an output of the liquid level sensor; and a liquid-replacement control part configured to stop the operation of the liquid replenish part based on a predetermined replenish stop condition that is set cooperatively with a predetermined liquid disposal condition, and to discard all the process liquid in the tank based on the predetermined liquid disposal condition.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 17, 2013
    Assignee: Tokyo Electron Limited
    Inventor: Kazuyoshi Eshima
  • Patent number: 8534313
    Abstract: An auxiliary actuator for a toilet fill valve comprises a plunger oriented under an arm of the toilet fill valve to lift the arm to close the toilet fill valve when the plunger is in a raised position. A spring or hydraulic mechanism urges the plunger into the raised position. A solenoid mechanism is normally de-energized and engages a latching mechanism of the plunger when the plunger is in a lowered position. An electronic sensing circuit has at least one sensor and a power source. The electronic sensing circuit is electrically connected with the solenoid mechanism to energize the solenoid mechanism upon detection of a fault condition based on the input of the at least one sensor. Fault conditions may include a flush valve leak, a stuck-open flush valve, a plugged toilet, and a leaking fill valve.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: September 17, 2013
    Inventor: Kermit L. Achterman
  • Patent number: 8479763
    Abstract: A valve including a mechanical part, e.g. a float, for performing a ROV function (Roll Over Valve) and an electronic part, e.g. an electronically controlled solenoid valve, for performing a venting function.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: July 9, 2013
    Assignee: Inergy Automotive Systems Research (Société Anonyme)
    Inventors: David Hill, Saurin Mehta, Scott McCleary, Scott Garabedian
  • Patent number: 8166996
    Abstract: A system and method for conditionally interfering with the operation of a conventional toilet tank fill valve prevents toilet overflow and conserves water. A single self-contained apparatus, located completely within the toilet tank, detects and prevents a toilet overflow and/or conserves water by conditionally interfering with or overriding the normal operation of a toilet tank fill valve to prevent a further flush. Exemplary illustrative non-limiting steps include removing the toilet tank lid to provide access to said toilet tank fill valve within the tank, manually snapping an assembly onto said fill valve protective cap, and automatically and conditionally actuating said assembly to cause the assembly to selectively interfere with or override the operation of said toilet tank fill valve. An exemplary illustrative non-limiting device comprises an attaching structure for manual attachment to said fill valve cap, and a control mechanism supported by said attaching structure.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: May 1, 2012
    Assignee: nth Solutions, LLC
    Inventors: Eric L. Canfield, Scott Soma, James Canfield
  • Patent number: 7931041
    Abstract: A system includes sensors configured to measure vessel parameters. A signal processing unit receives sensor output signals and generates a first, second, third, fourth, and fifth filtered output signals representative of liquid level, gas flow rate, feed-liquid flow rate, vessel pressure, and vessel temperature, respectively. A flow demand control unit receives the first filtered output signal and generates an output signal representative of feed-liquid flow demand. A shaping unit receives the second, fourth, and fifth filtered output signals and generates an output signal representative of shaped gas flow rate. A liquid level control unit controls the liquid level within predetermined limits by controlling one or more components based on the output signals from the flow demand control unit, the shaping unit, and the third filtered output signal.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 26, 2011
    Assignee: General Electric Company
    Inventors: Charudatta Subhash Mehendale, Bruce Gordon Norman, Erhan Karaca, Rajeeva Kumar
  • Patent number: 7849890
    Abstract: An assembly includes a sensor element operable to generate a signal in response to moisture being present at a predetermined level within a sealed housing, and a valve element coupled to the housing and, in response to the signal, operable to enable at least a portion of the moisture to exit the housing.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: December 14, 2010
    Assignee: Lockheed Martin Corporation
    Inventor: Allen Jones
  • Publication number: 20100263742
    Abstract: A water shutoff system includes a water conduit having a passageway extending therethrough. The passageway includes an inlet in fluid communication with an outlet. Water enters the inlet and is released outwardly of the outlet. The inlet is couplable to a water supply and the outlet is couplable to a faucet. A valve is in fluid communication with the passageway. The valve is positionable in an open position allowing water flow through the passageway or in a closed position preventing water flow through the passageway. A drive mechanism is mechanically coupled to the valve. The drive mechanism is actuated to selectively alternate the valve between the open and closed positions. A control is operationally coupled to the drive mechanism to actuate the drive mechanism to open or close the passageway. The control actuates the drive assembly to close the passageway when a threshold limit has been achieved.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 21, 2010
    Inventor: Margaret Bogdanska
  • Patent number: 7757708
    Abstract: A system and method for conditionally interfering with the operation of a conventional toilet tank fill valve prevents toilet overflow and conserves water. A controller connected to a water level sensor detects abnormal toilet tank water level over time and conditionally interferes with the normal operation of a toilet tank fill valve assembly, thereby preventing a further flush. The overflow and water conservation feature can be designed into a fill valve at time of manufacture and/or added later by a plumber or end user.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: July 20, 2010
    Assignee: nth Solutions
    Inventors: Eric L. Canfield, Scott Soma, James Canfield
  • Patent number: 7726584
    Abstract: A thermal valve assembly for a transmission is provided. The thermal valve assembly includes a body having a base portion having a plurality of opposing sidewalls extending therefrom. A cover is mounted with respect to the body and operates to at least partially close the body to form a volume. The base portion defines an inlet orifice, while at least one of the plurality of opposing sidewalls at least partially defines an outlet orifice. A plate is operable to selectively close the inlet orifice. A bi-metallic spring member is disposed at least partially within the volume. The bi-metallic spring member is operable to bias the plate against the base portion. Additionally, the bi-metallic spring member has a variable stiffness characteristic responsive to temperature.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: June 1, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Derril A. Loe, Richard F. Olenzek, Todd R. Berger
  • Publication number: 20090277512
    Abstract: A system for controlling the level of hydraulic fluid between a first and second sump in a transmission includes a valve assembly located within the first sump. The valve assembly includes a valve that is moveable between two positions. The valve assembly includes first and second inlet ports that communicate with the first sump and an outlet port that communicates with the second sump. The second inlet port has an opening that is located higher than an opening to the first inlet port. Hydraulic fluid within the first sump communicates through the first inlet port to the outlet port when the valve is in the first position, and hydraulic fluid within the first sump communicates through the second inlet port to the outlet port when the valve is in the second position.
    Type: Application
    Filed: March 30, 2009
    Publication date: November 12, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Charles Alan Barker, Walter Eric Palmer
  • Publication number: 20090150041
    Abstract: A refueling system for a vehicle having a combustion engine. The refueling system includes: a fuel tank; a canister configured to adsorb fuel vapor generated inside the fuel tank; a canister drain cut valve coupled to the canister and configured to discharge air; an ignition sensor configured to detect whether the ignition of the combustion engine is switched on or off; and a refueling controller configured to open the canister drain cut valve when the ignition sensor detects that the ignition of the combustion engine is switched off. A method for refueling a motor vehicle can use the refueling system.
    Type: Application
    Filed: October 27, 2005
    Publication date: June 11, 2009
    Applicant: INERGY AUTO. SYSTEMS RESEARCH (SOCIETE ANONYME)
    Inventors: David Hill, Saurin Mehta
  • Patent number: 7509973
    Abstract: A system to prevent an excess flow of water to a toilet tank in the event of a failure of a primary flow control assembly including a novel secondary shut-off valve which is automatically disposed into an initialized configuration upon completion of a normal flush cycle, but which is disposed into a closed configuration in the event of a failed flush cycle.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: March 31, 2009
    Inventor: Manuel Deive
  • Patent number: 7503082
    Abstract: An air massage system for a bathtub comprises a blower, an air distributor and the water jets. The air distributor connects the blower to the jets, and the jets are adapted to deliver air under pressure to the cavity defined by the bathtub. The jets include water check valves to prevent the water in the bathtub from entering the air distributor. The air distributor comprises at least one water relief valve for preventing water from reaching the blower, when inoperative, in the event of failure of any one of the water check valves. The air distributor also comprises a main pipe, a manifold and distribution pipes, with the main pipe connecting the blower to the manifold and the distribution pipes connecting the manifold to the jets. The water relief valve is provided on the manifold, and the water check valves are provided on the manifold and at each jet. A pressure relief valve is provided upstream of the jets for keeping a substantially steady pressure from the air propelled by the blower.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: March 17, 2009
    Assignee: C. G. Air Systèmes Inc.
    Inventor: Miguel Castellote
  • Patent number: 7055546
    Abstract: A fluid intake pressure regulating system of this invention maintains the pressure of fluid entering a pump below a preselected level for avoiding undesirably high fluid discharge pressure exiting the pump.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: June 6, 2006
    Inventors: John E. McLaughlin, Neocles G. Athanasiades, Toh M. Meng
  • Patent number: 7032257
    Abstract: A flush tank includes an outlet pipe attached to a receptacle for discharging water, a float disposed close to the outlet pipe to selectively block the outlet pipe, and to control an outward flowing of the water through the outlet pipe. A magnetically forcing device may magnetically force the float to block the outlet pipe, and a detecting device may be used to detect users and to actuate the magnetically forcing device to release the float. The magnetically forcing device includes an electromagnetic device supported by a frame to act with the float. A stop may be attached to the frame to limit a movement of the float relative to the outlet pipe.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: April 25, 2006
    Inventor: Kuan Pao Chen
  • Patent number: 6994107
    Abstract: This invention refers to an Automatic/Manual Device for Controlling Outflow of Water or any Fluid, with Mechanical Functioning and Easy Installation. It has a threadable intake nozzle for the inflow of water or any other fluid. The nozzle can be turned to direct the device as needed. Also, in the interior of the device there are two magnets with inverse polarity, a spring, two rubber membranes with orifices, a rubber membrane without an orifice, two supports for said membranes, an air chamber, a manually-activated metal ring, a functioning mechanism with the following positions: ON-OFF, a double copper tube that is submerged in the container to be filled, a rubber hose connecting the double copper tube with the air chamber, and an activating mechanism with “manual”, and “automatic” positions for operating the device.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: February 7, 2006
    Assignee: Ana Lidieth Madrigal Chavarria
    Inventor: Rafael H. T. Sosa
  • Publication number: 20040050424
    Abstract: This invention refers to an Automatic/Manual Device for Controlling Outflow of Water or any Fluid, with Mechanical Functioning and Easy Installation. It has a threadable intake nozzle for the inflow of water or any other fluid. The nozzle can be turned to direct the device as needed. Also, in the interior of the device there are two magnets with inverse polarity, a spring, two rubber membranes with orifices, a rubber membrane without an orifice, two supports for said membranes an air chamber, a manually-activated metal ring, a functioning mechanism with the following positions: ON-OFF, a double copper tube that is submerged in the container to be filled, a rubber hose connecting the double copper tube with the air chamber, and an activating mechanism with “manual”, and “automatic” positions for operating the device.
    Type: Application
    Filed: August 15, 2003
    Publication date: March 18, 2004
    Inventor: Rafael H.T. Sosa
  • Patent number: 6026837
    Abstract: The present invention provides an automated chemical drain system which includes a buffer tank for collecting used chemical from a process machine, at least two level sensors in the buffer tank for sensing a fluid level and sending out a signal, a controller for receiving the signal from the level sensors and then sending out a second signal to a solenoid controlled valve when the first signal exceeds a threshold value, a solenoid controlled valve that is in fluid communication with the buffer tank and a collection tank, and a collection tank for collecting used chemical from the buffer tank. The collection tank may further be provided with a weight sensing device such that a signal may be sent out to the controller when the weight of the collection tank exceeds a maximum allowable value so that the controller shuts off the solenoid controlled valve to avoid overflow in the collection tank and to alert a maintenance operator to empty the collection tank.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: February 22, 2000
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: J. S. Chen
  • Patent number: 5992447
    Abstract: A device for filling a swimming pool having a liner and a shell includes a water supply valve to control the flow of water into said swimming pool; a vacuum pump to evacuate air from the space between the liner and the shell as the swimming pool is being filled; a probe for generating a signal when the water in the pool reaches a predetermined height; and a controller responsive to the signal from the probe to shut off said water supply valve and the vacuum pump when water is detected by the probe. A current sensor monitors the current to the vacuum pump and shuts off the water supply valve when the vacuum pump ceases operation. A bypass switch allows the current sensor to be disabled.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: November 30, 1999
    Inventors: Russell Miller, Michael Oyer
  • Patent number: 5814213
    Abstract: An improved skimming apparatus for skimming a two component liquid includes a housing mounted to a tank below the normal liquid level for the tank, an outlet for pumping fluid from the submerged housing and an intake structure extending upwardly from the submerged housing and defining an inlet for permitting inflow of liquid to the interior of the submerged housing. The intake structure includes an intake tube rotatably mounted to the housing at upper and lower ends. The intake tube rotates in response to variations of the liquid level in the housing, to vary the inlet size and hence the rate of inflow to the housing. An adjuster provides control over the variation of the inlet size, to accommodate different skimming rates for liquids of different temperatures. An intermediate tube surrounds the intake tube, and an outer tube surrounds the intermediate tube.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: September 29, 1998
    Inventor: James A. Glasgow
  • Patent number: 5626162
    Abstract: The water control gauge is a cylindrical reservoir for collecting water from rain, sprinklers and other airborne sources. The reservoir has a float measurer to measure the level of water collected in the reservoir. A pulley having a float detects the water level and the turning of the wheel of the pulley operates an electric switch to allow or inhibit the operation of a sprinkler system. A siphon is attached to the reservoir to drain the water once a predetermined level has been reached.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: May 6, 1997
    Inventor: A. Charles Dispenza
  • Patent number: 5557939
    Abstract: A control system for absorption chillers which comprises a device for measuring operating state data concerning components of the main assembly of the chiller and including the liquid level of a high temperature generator and the degree of opening of a gas valve, and a fuzzy control circuit for calculating the deviation of the liquid level from a target value based on the measured operating state data, predicting a variation in the liquid level from the deviation and another item of the operating state data and calculating a control input as to the inverter frequency of an absorbent pump based on the result of prediction, whereby even when a great disturbance occurs, the liquid level of the generator can be controlled with high responsiveness to minimize the variation of the liquid level.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: September 24, 1996
    Assignee: Sanyo Electric Co. Ltd.
    Inventors: Kazuaki Mizukami, Atsushi Ogawa, Masashi Yasuda, Masahiro Furukawa, Hidetoshi Arima, Yoshio Ozawa
  • Patent number: 5460197
    Abstract: The valve (31) comprises at least two lateral openings (34, 36) which can be shut off by a plug (40) provided with an axial orifice (48) for the passage of gas and sliding axially in the casing (32) between a position in which the openings, (34, 36) are shut off under the influence of a spring (44) and an open position counter to the action of the spring (44) under the influence of the pressure of the filling gas, and a level valve (52) activated by a float (62) at the bottom of the casing (32).The plug (40) comprises an inner cavity (70), the bottom of which has a cross-section in the shape of an open "V". In this cavity (70) is a ball (72) which prevents the cylinder from being filled when the latter is inclined sufficiently for the ball not to be situated at the bottom of the cavity (70).
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: October 24, 1995
    Assignee: Torrent Trading Ltd.
    Inventors: Leon Kerger, Claude Goffin
  • Patent number: 5351712
    Abstract: An on demand, remotely activated, electronically and electro-mechanically controlled, energy saving, water conservation, hot, water recovery system, which may be installed in residential and commercial structures having a pressurized water supply (11). The system is comprised of a dual chamber, dual hot water outlet, water heating reservoir (23), and a flow control and recovery apparatus (10), in fluid communication with a cold water supply (11) and hot water outlets (93-97). The system installs in new or existing structures, without alteration of the plumbing lines or electrical wiring. The flow control (84) is preprogrammed to, upon command, drain standing water from the hot water outlets (93-97), and refill the outlets with hot water from the small chamber (23b) of the water heating reservoir (23), making hot water available at the instant an outlet is opened.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: October 4, 1994
    Inventor: John A. Houlihan
  • Patent number: 5197569
    Abstract: The present invention is an apparatus for regulating the amonut of oil, lubricant, or other type of lubricant applied to a surface of a work piece in order to reduce friction during a machining process. It comprises a primary reservoir, a needle valve, float assembly, a liquid drop control orifice, a sight for allowing visual confirmation of the flow rate, an atmospheric vent, an inlet for pressurized air, and a nozzle. The needle valve is slidably engaged into an orifice in the primary reservoir and is actuated by the float assembly. The float assembly floats in the low volume constant depth reservoir and controls the degree to which the needle valve need be open in order to maintain a constant volume of lubricant in the low volume constant depth reservoir. As the volume increases to the required level, the needle valve will close. As the volume decreases, the needle valve will open in order to maintain a constant level of lubricant in the reservoir.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: March 30, 1993
    Assignee: Trico Mfg. Corp.
    Inventors: David A. Roessler, Donald R. Jung, Robert D. Jung, Charles F. Pace, Michael J. Doperalski
  • Patent number: 5178009
    Abstract: A temperature controller with an integral liquid level control is contained within one unit. The unit consists of an electrical and heat conductive housing, which serves as a first electrode of the liquid level sensor. A metal clamp and a means to attach the housing to the liquid vessel is insulated from the housing and serves as a second electrode. The electrodes are connected in an electrical circuit such that when the electrodes are immersed within a conductive liquid, the resistance between the electrodes is reduced and a current is allowed to flow. A temperature sensor, such as a thermistor, RTD, or thermocouple, is contained within the housing. The housing conducts heat from the housing environment for radiation within the housing.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: January 12, 1993
    Assignee: Industrial Engineering and Equipment Company
    Inventors: Anil K. Arekapudi, Donald G. Bryan, Jr., Thomas Holden
  • Patent number: 5012838
    Abstract: The present invention relates to a solenoid valve disposed over a fuel tank and incorporating a liquid surface detecting valve for detecting the liquid surface in a fuel tank. The solenoid valve comprises a plunger and an adhesion preventive pin wherein the adhesion preventive pin is lowered in the direction of the liquid surface detecting valve at the time of opening of the solenoid valve and the same pin pushes the liquid surface detecting valve downward at the time when the liquid surface detecting valve is attached and adhered to a valve seat thereof, whereby the liquid surface detecting valve is open with assurance.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: May 7, 1991
    Assignees: Kyosan Denki Kabushiki Kaisha, Fuji Jukogyo Kabushiki Kaisha
    Inventors: Toshirou Kawase, Shiro Saito, Masanobu Miyake
  • Patent number: 4811754
    Abstract: A fluid-flow control valve comprises a valve housing bounding a chamber and defining an inlet port for entry of fluid into the chamber and a control port for egress of fluid from the chamber. The control port is of reduced cross-sectional area relative to the chamber. The valve also comprises a valve closure member disposed in the chamber. The valve closure member is less dense than the fluid that the valve is to be used to control, so that when the chamber contains that fluid and the control port is above the closure member, the valve closure member is urged toward the control port so as to obstruct the control port. The closure member can be displaced away from the control port so as to allow fluid to flow through the control port.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: March 14, 1989
    Assignee: Oy Wartsila Ab
    Inventor: Raymond L. Wilhelm
  • Patent number: 4802334
    Abstract: An optical sensor (40) located in the manifold area (20) of an augmentor senses the presence of liquid. The engine control provides a high fuel flow rate from remotely located augmentor fuel control (58) until liquid is sensed. Flow is then reduced to the desired metered rate.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: February 7, 1989
    Assignee: United Technologies Corporation
    Inventors: Matthias Eder, Walter B. Kerr
  • Patent number: 4702271
    Abstract: The invention concerns a float-controlled flow-control devie for the outlet from a sewage system, especially a rain basin. The bearings for the pivots (7 & 8) that the float arm (4) and the shutter (2) rotate on are mounted on a displaceable structure (3). This makes it possible to vary the outflow volume to be controlled even when the device is in operation, and hence to control it remotely as well.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: October 27, 1987
    Assignee: Lothar Steinhardt
    Inventor: Klaus-Ulrich Giehl
  • Patent number: 4686086
    Abstract: Apparatus is provided for controlling liquid levels in different vessels, and the blending of different materials in the separation and purification of polymeric materials in solution, such as polyethylene in cyclohexane.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: August 11, 1987
    Assignee: Phillips Petroleum Company
    Inventor: Fred Rowe
  • Patent number: 4592098
    Abstract: The invention is directed to a liquid level control system which includes a primary float valve which allows liquid to flow into a pool reservoir when the level of fluid in the reservoir is below a first predetermined level and a secondary float valve associated with the primary flow valve which shuts off the flow of fluid into the pool reservoir when the level of liquid in the pool reservoir exceeds a second predetermined level which is higher in elevation than the first predetermined level. The primary valve continually operates between open and closed states. The secondary valve is normally in an open state and when it is caused to go to a closed state it remains closed until it is manually reset.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: June 3, 1986
    Inventor: Herbert Magnes
  • Patent number: 4549570
    Abstract: A monitoring system (10) for a fluid waste disposal system is provided. Fluid waste is transported from a source (12) through a valve (16) to a reservoir (14) under access control provided by access switches (40). The monitoring system (10) includes density circuitry (64) for monitoring the density of fluid being deposited into the reservoir (14). Level detector circuitry (90) is provided for monitoring the level of fluid which has been deposited in the reservoir (14). The monitoring system (10) further includes a counter (56) for counting the number of times the valve (16) has been actuated. Counter delay circuitry (54) provides an output to counter (56) to positively indicate that an access switch (40) has been actuated.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: October 29, 1985
    Inventors: Kenneth D. Cook, Timothy R. Proctor
  • Patent number: 4538307
    Abstract: An improved flood level sensor has an upstanding, vented tube extending above and outside a receptacle while maintaining fluid communication with an enclosed rim of the receptacle. A partial vacuum is communicated to an orifice which is located within the tube at a height related to a limit on the level of fluid in the receptacle. The level of fluid in the tube depends upon the fluid pressure in the enclosed rim and therefore upon the fluid level in the receptacle. When the fluid level in the receptacle is below flood level, the orifice is able to relieve any partial vacuum communicated to it. However, when the level of fluid in the receptacle rises to the flood level, the fluid level in the tube rises to partially seal the orifice and prevent relief of the partial vacuum which then actuates a valve lockout device.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: September 3, 1985
    Assignee: Bradley Corporation
    Inventors: Thomas G. Barnum, William A. Smart, Jr., Donald H. Mullett
  • Patent number: 4510967
    Abstract: An anti-backflow valve for installation in a blower discharge line of a therapy tub aeration system has an air inlet, an air outlet, and an auxiliary outlet in its housing. A spring-loaded check valve member within the housing precludes fluid flow outwardly through the air inlet. Also within the housing is a combined pressure relief and float valve mechanism which opens the outlet passage in response to a pressure in the housing greater than a predetermined relief pressure or the presence of water in the housing above a predetermined level. An initial backflow of water in the discharge line closes the check valve member, the float and relief mechanism limiting the air pressure building caused by a continued backflow and permitting water to enter the housing through the air inlet when the housing is vented. After reaching the predetermined level in the housing, the entering water is discharged through the auxiliary outlet passage.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: April 16, 1985
    Assignee: KDI American Products, Inc.
    Inventor: Raymond G. Spinnett
  • Patent number: 4498203
    Abstract: A flood preventer has a pneumatically operable lockout mechanism to disable a valve actuator and prevent its repeated operation when fluid in a receptacle has reached an excess level. In the preferred embodiments the flood preventer has a latch that is responsive to a partial vacuum to engage a catch in the linkage between the valve actuator and a fill control valve. The partial vacuum is created by the flow of fluid into the receptacle through a venturi. The venturi is connected by a vacuum line to a fluid level sensing orifice that opens into the receptacle and relieves the partial vacuum when not blocked by fluid that has reached an excess level. In two other embodiments the partial vacuum is subject to the same conditions at the venturi and the orifice, but the lockout mechanisms are different. In the second embodiment a pin is dropped out to uncouple a valve actuator linkage, while in a third embodiment a jamming mechanism is used to block movement of the valve actuator.
    Type: Grant
    Filed: May 9, 1984
    Date of Patent: February 12, 1985
    Assignee: Bradley Corporation
    Inventors: Thomas G. Barnum, Thomas E. Pelt
  • Patent number: 4495028
    Abstract: Apparatus and methods are provided for controlling liquid levels in different vessels, and the blending of different materials in the separation and purification of polymeric materials in solution, such as polyethylene in cyclohexane.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: January 22, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Fred Rowe
  • Patent number: 4493350
    Abstract: A device for removing air from hermetically sealed, automatically emptying centrifuge drums and consisting of an air-removal valve atop a reservoir with a manometric switch and a level-sensitive switch and connected to controls. The controls open the valve when the pressure in the reservoir exceeds a predetermined level and close it when the pressure drops below that level. The valve closes however, as soon as the level of the liquid in the reservoir reaches the level-sensitive switch. The device, which is preferably mounted in the product intake of a hermetically sealed, automatically emptying centrifuge, allows air to be removed automatically without allowing product to escape, foam to form, or oxygen to enter. The reservoir can be thoroughly cleaned automatically.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: January 15, 1985
    Assignee: Westfalia Separator AG
    Inventors: Alfons G. Beikel, Harald Jarosch
  • Patent number: 4469117
    Abstract: A valve device serving to prevent overfilling of portable containers, particularly liquid gas cylinders, includes a ball which is freely rotatable relative to a spherical seating face in a casing having a filling channel extending to said seating face. The ball has a through passage which in the prescribed filling position communicates with the channel, and the ball is connected to a load member tending to keep the ball, and thus its passage, in a given orientation so that the communication is broken when the container is tilted away from the prescribed filling position.The device further includes a valve member controlled by a float and operative to interrupt the filling operation after a predetermined filling level has been reached in the container.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: September 4, 1984
    Assignee: Kosan Teknova A/S
    Inventor: Frits P. U. Hansen
  • Patent number: 4469116
    Abstract: A valve device serving to prevent overfilling of portable containers, particularly liquid gas cylinders, includes a ball which is freely rotatable relative to a spherical seating face in a casing having a filling channel extending to said seating face. The ball has a passage which in the prescribed filling position communicates with the channel, and the ball is through a rod and a flexible link connected to a load member. As long as this load member is above the liquid level, it tends to keep the ball, and thus its passage in a given orientation so that the communication is broken if the container is tilted away from the prescribed filling position.When the liquid level has reached a predetermined height, the load member acts as a float so as to interrupt the filling operation by causing the ball to change its orientation.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: September 4, 1984
    Assignee: Kosan Teknova A/S
    Inventor: Frits P. U. Hansen
  • Patent number: 4462417
    Abstract: A valve assembly, mountable on a propane or LPG cylinder, has a gate valve to regulate flow. An auxiliary valve element is movable in response to the liquid level within the tank, and to pressure differentials in the outflow direction. The auxiliary valve interrupts flow through the valve to prevent an overfill condition, or if the valve's outlet communicates with atmospheric pressure, or if the cylinder is knocked over.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: July 31, 1984
    Assignee: Sherwood Selpac Corp.
    Inventor: Joseph C. Trinkwalder, Jr.
  • Patent number: 4421459
    Abstract: A fluid level control apparatus for a fluid reservoir and comprising a weatherproof housing having a plurality of micro switches mounted therein, the interior of the housing being in communication with the fluid reservoir, a reciprocal rod member extending between the interior of the housing and the fluid reservoir and operably connected with the micro switches for actuation thereof upon reciprocation of the rod, a diaphragm secured to the reciprocal rod and flexible thereby, a helical spring acting against the diaphragm for providing a preselected constant force thereagainst in one direction, a pair of in-line weight members suspended from the reciprocal rod outboard of the diaphragm and calibrated in relation to the physical characteristics of the fluid and force of the spring for counterbalancing of the spring to maintain the diaphragm in a neutral position during normal fluid level conditions within the fluid reservoir, the combined weights of the weight members being variable upon the fluctuation of the
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: December 20, 1983
    Inventor: Ernest Frey
  • Patent number: 4406299
    Abstract: A liquid level valve for use in filling a liquid storage tank to control (in response to increased air pressure within the liquid level valve) the tank emergency loading valve which is held open by pressurized air.The liquid level valve has an air control cavity connected to the pressurized air and an actuating cavity which exhausts to the atmosphere and is disposed above the air control cavity and connected to it via an actuating passageway. An air control diaphragm divides the air control cavity into upper and lower portions and controls the flow of pressurized air into such lower portion which exhausts to the atmosphere. The air control diaphragm has a small air control passageway (of smaller diameter than the actuating passageway) allowing pressurized air into the air control cavity upper portion, thus permitting the pressurized air to act on both sides of the air control diaphragm.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: September 27, 1983
    Assignee: Barbara Baldwin DeFrees
    Inventor: Joseph H. DeFrees
  • Patent number: RE32179
    Abstract: A post-mix carbonated beverage dispensing system for use in refrigerated cabinets includes a carbonator having a refillable water reservoir, a CO.sub.2 system coupled to said carbonator, a valving system, and a disposable package for containing and dispensing the syrup of the post-mix beverage at a controlled rate of flow. The water reservoir may be manually refilled from a water pitcher. The CO.sub.2 system includes a cylinder which is also disposed within the refrigerator cabinet and is coupled to the carbonator. The valving system may include a plurality of dispensing valves and mixing nozzles for dispensing different selected beverages depending upon which of the valves is actuated. In addition, carbonated water alone may be dispensed. The disposable syrup package includes a plastic container having a flow rate control tube therein and means in said flow rate control for precluding spillage of syrup when the package temperature becomes elevated from opening and closing the refrigerator door.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: June 10, 1986
    Assignee: The Coca-Cola Company
    Inventors: Jason K. Sedam, William R. Fuerst