Mixing Valve With Temperature Motive Means Patents (Class 236/12.11)
  • Patent number: 9366015
    Abstract: A method of controlling at least one of the flow rate or temperature of outlet water from a mixing valve having a first control valve configured to receive water at a first temperature and a second control valve configured to receive water at a second temperature higher than the first temperature includes moving at least one of the first or second flow control valves to output a flow of water from the mixing valve having at least one of a desired flow rate or temperature, wherein the force required to actuate the flow control valves is substantially independent of water flow.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 14, 2016
    Assignee: KOHLER MIRA LIMITED
    Inventor: Kevin T. Peel
  • Patent number: 9244467
    Abstract: A system of thermally activated feedback control valves and thermally activated sensors to provide heated fluid within a desired temperature range which operates consistently at high and low flow rates, suitable for control of combination safety shower and eyewash stations.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 26, 2016
    Assignee: THERM-OMEGA-TECH, Inc.
    Inventor: Glenn Quinty
  • Patent number: 9158309
    Abstract: A sanitary fitting contains a rectilinear or slightly curved tubular outlet body, at one face end of which there is arranged an outlet, out of which the water flows, with the valve open, in a direction extending the direction of the outlet body. At this end of the outlet body there is arranged an actuating element for a valve cartridge arranged axially in the outlet body. At the opposite end of the outlet body there is arranged at a face end an actuating element for a valve cartridge accommodated in the outlet body. The outlet body has a lateral fastening attachment, by way of which the sanitary fitting is fastened to a horizontal or vertical surface and through which the supply lines are led.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: October 13, 2015
    Assignee: Hansgrohe SE
    Inventors: Joachim Blattner, Phillipe Grohe, Stefanie Schweickerdt
  • Patent number: 9134737
    Abstract: A thermostatic mixing valve includes a mixing slide arranged between two seats for mixing fluids at different temperatures and capable of flowing between the mixing slide and the two seats, respectively, so as to supply a mixed fluid; and an axial thermal actuator arranged between the mixing slide and an absorption member sensitive to the temperature of the mixed fluid for creating a controlled movement of the position of the mixing slide between the two seats in order to supply the mixed fluid at a controlled temperature, where the absorption member includes one of the seats and is capable of moving in a direction that increases the distance between the seats when the mixing slide is bearing on the other seat so as to absorb an excess of axial movement of a rod of the absorption member due to excessive variation of the mixed fluid temperature.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: September 15, 2015
    Assignee: Watts Industries France
    Inventor: Georges Menet
  • Patent number: 9127779
    Abstract: A frictionless, pressure balanced proportioning valve assembly, for low power electric operated thermostatic cartridge, composed of a housing with spaced apart hot and cold water inlets and intermediate mixed water outlet, flow communicated to a spool bore with a central widened portion; a spool, guided in the spool bore, by widened end portions, is carrying a central widened disk portion, separating the spool bore into two tubular inlet chambers; two diaphragm seals disposed at both ends of the spool and housing, pressure balancing the inlet chambers; a temperature sensor, exposed to the mixed water outlet pathway, generates a signal, readable by a control circuit; a drive unit energized by a low power electric motor, driving past gear train and eccentric shaft, a bendable connecting rod, axially displacing the spool. Axial displacement of the balanced friction-free spool, proportions flow from the hot and cold water inlets to the mixed water outlet.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: September 8, 2015
    Inventor: Eitan Rivlin
  • Patent number: 9081392
    Abstract: A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: July 14, 2015
    Assignee: MAGARL, LLC
    Inventor: Kevin B. Kline
  • Patent number: 8985473
    Abstract: A regulating valve has a dome, a discharge sheet and a flow deflector. The dome has a base and a circumferential wall. The discharge sheet and the flow deflector are set in the dome in sequence. A discharge portion, a cold water portion, a hot water portion and a warm water portion are set on the base. A discharge slot, a cold water slot, a hot water slot and a warm water slot are set on the discharge sheet correspondingly. A guide slot is extended outwards from the center of the circle on the surface of the flow deflector. The end point of the center of the guide slot is set correspondingly to the discharge slot. When the flow deflector is rotated, there may occur either of a water shutdown state, or a hot, lukewarm, warm, chilly or cold water discharge state, enabling to switch water discharge efficiently.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: March 24, 2015
    Inventor: Teng-Lung Liu
  • Publication number: 20150013622
    Abstract: A water heater appliance and a method for operating the same are provided. The method includes receiving a first temperature measurement from a temperature sensor of the water heater appliance, receiving a second temperature measurement from the temperature sensor of the water heater appliance, and establishing if water is flowing through a conduit of the water heater appliance based at least in part on the first and second temperature measurements.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 15, 2015
    Inventors: Brett Alan Farris, Craig lung-Pei Tsai, Eric Jeffrey Klingeman
  • Patent number: 8931706
    Abstract: A mixed water control valve for a faucet includes a control unit, two mounting seats and a balance unit. The control unit includes a valve housing, a rotation plate and a control handle. The balance unit includes a fixed sleeve and a pressure regulating sleeve. The pressure regulating sleeve is movable in the fixed sleeve by a pressure differential between the two mounting seats to control the water flow rate of the cold and hot water of the two mounting seats and to regulate the water pressure automatically so as to provide a pressure balance and to stabilize the temperature of the mixed cold and hot water in the valve housing so that the mixed water flowing from the valve housing is kept at a constant temperature.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: January 13, 2015
    Assignee: Ing Tzon Co. Ltd.
    Inventor: Mei-Fen Lin
  • Patent number: 8899491
    Abstract: A thermostatic mixer device for sanitary appliances, includes: a cartridge envelope; a distributor bottom member with intake openings for cold and hot water, a delivery opening for mixed water, and elements for controlling and intercepting the delivered flow rate; a mixing member located inside the envelope, forming a cylinder, control openings and passageways for directing hot water and cold water from the intake openings to the respective control openings; a distribution slide valve, sealingly sliding in the axial direction within the cylinder of the mixing member, and cooperating with the control openings in order to partially shut the control openings in opposite senses; a thermometric element for displacing the distributing slide valve against the action of a return spring; and control elements for establishing the temperature desired for the delivered mixed water.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: December 2, 2014
    Assignee: Studio Tecnico Sviluppo e Ricerche S.T.S.R. S.R.L.
    Inventor: Francesco Knapp
  • Patent number: 8881992
    Abstract: Provided is a valve assembly having a thermal valve member and a priority valve member that are shiftable to first and second positions in response to a temperature and pressure of a fluid flowing through the valve assembly. Consequently, the valve can provide for flow through a heating orifice under low temperature, high pressure conditions so that pressure drops in fluid lines coupled to the valve assembly may be prevented or reduced, allowing fluid lines with small diameters to be used in an aircraft or other fluid flow system, thereby reducing the weight of the aircraft or fluid flow system.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: November 11, 2014
    Assignee: Parker-Hannifin Corporation
    Inventors: John Scott Vanderveen, Samuel C. Sayles
  • Patent number: 8870085
    Abstract: A hot and cold water mixing valve including a temperature adjusting dial, and a cylindrical casing having formed therein a hot water inlet and a cold water inlet is provided with a control valve member in which one end thereof is subjected to a load from a biasing member and the other end is subjected to a load from an actuator. By balancing between the loads applied by the biasing member and the actuator, a mixture ratio between the hot water which flows in through the hot water inlet and the cold water which flows in through the cold water inlet is adjusted. A temperature adjuster adjusts a position of the control valve member through the biasing member and includes a tapered skirt portion, which spreads in a radial direction, at an end on the control valve member side thereof.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: October 28, 2014
    Assignees: Toto Ltd., Nippon Thermostat Co., Ltd.
    Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
  • Publication number: 20140283295
    Abstract: The present invention is directed to methods and apparatus for tempering the temperature of a liquid in a fluid conducting system. More particularly, some embodiments of the invention relates to tempering the temperature of water supplied to a fixture from a water heater in a fluid conducting system. The system can include a heater for heating the fluid and a diffuser for slowing the rate at which water provided to a decontamination fixture is heated.
    Type: Application
    Filed: November 25, 2013
    Publication date: September 25, 2014
    Applicant: Magarl LLC
    Inventors: Robert Eveleigh, Gary Cook
  • Patent number: 8757505
    Abstract: A mixing faucet (1) includes a casing (2) having a hot water inlet opening (24), a cold water inlet opening (23), and an outlet opening (28); a control valve element (3) slidably mounted in the casing (2); a temperature adjusting screw (7) rotatably disposed in the casing (2); a slider (6) sliding in the casing (2) through rotation of the temperature adjusting screw (7); a bias spring (5) disposed in the casing (2), between the control valve element (3) and the slider (6), and biasing the control valve element (3) toward the cold water inlet opening (23); a temperature sensing spring (4) which biases the control valve element (3) toward the hot water inlet opening (24); and a pull-up spring (10) for biasing the control valve element (3) toward the hot water inlet opening (24).
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: June 24, 2014
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Isao Negishi, Eiji Seki, Shigeru Iwai, Takeshi Hagiwara
  • Patent number: 8746582
    Abstract: The hot and cold water mixing valve having a cylindrical casing is provided with a control valve member which adjusts a ratio between hot and cold water inlets by balancing loads applied by a biasing member and an actuator, and cylindrical temperature adjuster which adjusts a position of the control valve member when rotated. In the temperature adjuster, an upper surface is formed at one end, a knob is provided in the center of the upper surface, and a ring-shaped recess is formed around the knob at the upper surface. The temperature adjuster is arranged inside the casing and the knob is inserted, coaxially with the casing, into the hole which opens at one end of the casing. A spacer which covers the recess is interposed and held between the upper surface of the temperature adjuster and one end of the casing.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: June 10, 2014
    Assignees: Toto Ltd., Nippon Thermostat Co., Ltd.
    Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
  • Patent number: 8740098
    Abstract: The initially cold water streams of a household hot water plumbing circuit are accumulated in a storage container to be thereafter drained off with the cold water stream, at various flow restricted levels, thereby conserving water use. This accumulate may be adjustably admixed into the waste products of a household drinking water purification system, thereby diluting it to acceptable levels that may be useful for washing and the like. Additionally, and/or alternatively, the fresh water stream may be admixed into the water purification waste water stream. Each of these water conserving functions is conformed to be combined in a stepwise manner, thereby accommodating budgetary and use growth constraints.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: June 3, 2014
    Assignee: Nitroworks Corporation
    Inventors: Steven M. Greenthal, Neal W. Smith
  • Patent number: 8740097
    Abstract: According to the invention, the cartridge (1) includes a thermostatic element (72) which is thermally activated by a mixture of a cold fluid and a hot fluid, which is mechanically connected to a regulator slide (70) and which is moved by a single lever (50) for controlling the flow rate and the temperature of said mixture. In order to improve cartridge temperature regulation within a large flow range, the cartridge includes second (30) and third discs (40) in addition to a first disc which is stationary relative to the cartridge body (10). The second disc is translationally stationary relative to the first disc and is capable of rotation under the action of the lever actuation via a nut partially containing a thermostatic-member-moving assembly (76, 78, 80) which is rotatably connected to the control lever about the axis (X-X) and which is provided with extensions (66) that engage mechanically with the second disc for rotating same.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: June 3, 2014
    Assignee: Vernet
    Inventors: Emmanuel Platet, William Da Silva
  • Patent number: 8733666
    Abstract: A thermostatic mixing valve having a temperature adjustment mechanism for adjusting the temperature of the discharge fluid exiting a fluid outlet of the thermostatic mixing valve. The thermostatic mixing valve may include a tamper-resistant feature that resists accidental adjustment of the discharge fluid temperature, and in some cases, does not require specialized tools for purposeful adjustment.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 27, 2014
    Assignee: Honeywell International Inc.
    Inventor: Joseph William Beagen
  • Patent number: 8640969
    Abstract: The invention relates to a thermostatic mixing valve comprising a hollow body having a first inlet, a second inlet, and an outlet in fluid communication with the first inlet and/or the second inlet via a mixing chamber. The flow through the valve is controlled by an axially extending thermostatic actuator comprising a stem, an enlarged portion and a heat sensitive bulb, said bulb extending into the mixing chamber. The thermostatic actuator is axially displaced between a first end position in which only the first inlet is connected to the outlet and a second end position in which only the second inlet is connected to the outlet. The thermostatic actuator is displaced in a sleeve member arranged to restrict the flow of water from the second inlet past the enlarged portion of the thermostatic actuator during its axial displacement until the thermostatic actuator reaches the second end position.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: February 4, 2014
    Assignee: Thermoventiler i Ulricehamn AB
    Inventor: Anders Thomasson
  • Publication number: 20140020676
    Abstract: The present invention keeps fluid temperature at a point in a flowing fluid system below a preset limit by providing automatic self-adjusting over-temperature protection that cools the fluid when needed and without requiring a separate cold fluid source. The present invention keeps the temperature of the fluid at a point in the system clipped at a cutoff temperature and prevents overcooling the fluid. When the fluid temperature is below the cutoff temperature, the temperature of the fluid is unchanged as it passes through the apparatus of the present invention. The present invention can operate without electrical power or any power source, can function in any orientation, and works for both unpressurized and pressurized systems. The present invention has application in the areas of solar thermal energy systems, fluid storage tanks, engine oil and coolant systems, transmission oil systems, hydraulic systems, and cutting oil systems, among others.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 23, 2014
    Inventor: Thomas Richard Wehner
  • Publication number: 20130320101
    Abstract: A water valve assembly of the present invention includes a temperature controller, a main controller, and a connecting tube disposed therebetween. Water entering the temperature controller further enters the main controller via the connecting tube and is discharged from the main controller. The temperature controller and the main controller are arranged in an edge of bathtub, and the connecting tube is parallel to the edge of bathtub. Also, water always flows not parallely to a width of the edge of bathtub in the water valve assembly. Thus, the water valve assembly of the present invention is able to be installed in a narrower edge of bathtub.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 5, 2013
    Inventor: Tsai-Chen YANG
  • Patent number: 8579206
    Abstract: A thermostatic mixing valve for the mixing of a first and second fluids is disclosed. The thermostatic mixing valve includes a valve body having first and second inlets, and a mixed fluid outlet. The thermostatic mixing valve includes a valve member configured to control the rate of flow of at least the first fluid. The member includes a thermostat in communication with the mixed fluid and a shuttle coupled to the thermostat, configured for movement within a liner, and oriented to adjustably engage the flow of the first fluid through an opening within a wall of the liner, the direction of flow of the first fluid being at least partially transverse with respect to the shuttle. A fluid inlet may include a check valve configured to prevent fluid from flowing out of the valve through the inlet.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: November 12, 2013
    Assignee: Magarl, LLC
    Inventor: Kevin B. Kline
  • Patent number: 8561913
    Abstract: A device for dispensing water includes a water tank for keeping water at a tank temperature higher than the desired temperature of the water to be dispensed. A tank inlet is connected to a source of water. device includes a mixing device with a first water supply, a second water supply and a water discharge connected to a dispensing point. The first water supply is connected to a hot water pipe originating from a central hot water source arranged at a distance, and the second water supply is connected to a tank outlet. The mixing device includes a control device which is designed to mix water from the first and second water supply in such a manner that the water to be dispensed substantially has a desired temperature.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: October 22, 2013
    Assignee: Henri Peteri Beheer B.V.
    Inventors: Niels Theodoor Peteri, Ivo Legel
  • Patent number: 8544760
    Abstract: A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: October 1, 2013
    Assignee: Magarl, LLC
    Inventor: Kevin B. Kline
  • Patent number: 8534568
    Abstract: A sanitary fitting includes a cold water connection; a hot water connection; a mixed water outlet; a valve device for setting a mixed water temperature and a mixed water throughflow rate, wherein the valve device is connected to the cold water connection and the hot water connection at one end and is connected to the mixed water outlet at the other end; an electrical controller for actuating a valve; and a control signal transmitter for generating an input signal to the controller, wherein the valve is an integral constituent part of the valve device, and the controller actuates the valve device as a function of the input signal of the control signal transmitter such that a mixed water temperature and a mixed water throughflow rate are set.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: September 17, 2013
    Assignee: KWC AG
    Inventors: Christian Gautschi, Daniel Baumann
  • Publication number: 20130221115
    Abstract: A sanitary fitting contains a rectilinear or slightly curved tubular outlet body, at one face end of which there is arranged an outlet, out of which the water flows, with the valve open, in a direction extending the direction of the outlet body. At this end of the outlet body there is arranged an actuating element for a valve cartridge arranged axially in the outlet body. At the opposite end of the outlet body there is arranged at a face end an actuating element for a valve cartridge accommodated in the outlet body. The outlet body has a lateral fastening attachment, by way of which the sanitary fitting is fastened to a horizontal or vertical surface and through which the supply lines are led.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 29, 2013
    Applicant: HANSGROHE SE
    Inventor: HANSGROHE SE
  • Patent number: 8517282
    Abstract: A thermostatic mixing valve has an enhanced response to temperature change by arranging one of the hot water and cold water flows into a series of jets that intersect the other flow such that the proportions of hot water and cold water mixing at the surface of the thermostat is made to respond to the inlet water pressure to augment the temperature change normally experienced at the surface of the thermostat.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: August 27, 2013
    Assignee: Kohler Mira Limited
    Inventors: Nigel Paul Sansum, Richard Timothy Hopson
  • Patent number: 8500035
    Abstract: A thermostatic mixing valve including a cold water bypass passageway controlled by a pressure-operated check valve that opens upon a failure of a hot water supply to the valve for use with safety devices, such as eyewash and drench shower stations. The thermostatic mixing valve allows the continued delivery of cold water upon a failure of a hot water supply. The lack of hot water causes a cold water valve opening to be closed by a thermal motor, which retracts upon the lack of hot water, yet the bypass passageway is adapted to allow cold water to bypass the thermal motor-controlled cold water valve opening and be directed to the outlet of the valve.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: August 6, 2013
    Assignee: Watts Water Technologies, Inc.
    Inventor: Zoltan Goncze
  • Patent number: 8480003
    Abstract: A separated-flow temperature control faucet mainly comprises a constant temperature control device to mix hot water and cold water, a flow divider valve to control water flow direction and a main housing coupling with the constant temperature control device and the flow divider valve. The constant temperature control device contains an axial movement member movable axially by turning to control hot and cold water flow amount to control water temperature. The flow divider valve provides water separating function and stop function to stop water from flowing out. The faucet thus formed has a longer life span, is less likely to accumulate water dreg, can supply a greater water discharge amount, stabilize water temperature, and offer a simpler structure and improve usability.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: July 9, 2013
    Assignee: Deluxe Brassware Co., Ltd.
    Inventor: Yu-Yu Hsieh
  • Patent number: 8453942
    Abstract: The invention relates to a single-unit faucet that comprises a tubular faucet body (2) and a thermostatic cartridge (3) defining a pre-assembled assembly provided inside the faucet body and including a hollow shell (4) made of a plastic material, in which is provided a thermostatic means (5) for adjusting the temperature of a cold-fluid and hot-fluid mixture. In order to firmly and simply secure the shell in the faucet body, a rigid part (6) is provided between them, and is capable of movement along a movement axis (Z-Z) transverse to the longitudinal axis (X-X) of the faucet body, while being kinematically connected to the shell both in the direction of the axis of the faucet body and in rotation about said axis.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: June 4, 2013
    Assignee: Vernet
    Inventor: Frederic Robert Jager
  • Publication number: 20130112762
    Abstract: A mixing adjusting thermostatic water valve with a pressure balancing device includes a valve body (14), a water temperature adjusting block (8) and a temperature sensor (6). A cold water pipe (1) and a coaxial hot water pipe (10) are respectively provided on the left and right sides of the valve body (14), a mixing water pipe (7) is communicated with the cold and hot water pipes (1, 10) to form an inner cavity (15) in which the water temperature adjusting block (8) is provided. An adjusting block tooth (8-1) is provided at the bottom of the water temperature adjusting block (8) and engages with a rack (5) parallel with the axis of the cold and hot water pipes (1, 10). A left and a right pressure balancing cavities (17, 16) are arranged on two sides of the lower part of the inner cavity (15) respectively, and the two ends of the rack (5) pass through the internal sidewalls of the left and right pressure balancing cavities (17, 16) respectively.
    Type: Application
    Filed: June 21, 2011
    Publication date: May 9, 2013
    Inventor: Zhaokeng Pan
  • Patent number: 8434691
    Abstract: A thermostatic valve control structure mainly has an axial movement element movable axially to control opening size of a hot water inlet and a cold water inlet. The axial movement element has a ceramic layer which has a smooth surface to reduce friction with a sealing ring. The ceramic layer provides advantages of resisting acid and alkali, less likely to accumulate water dregs, simpler structure and longer life span. Thus the total life span and durability of the thermostatic valve control structure can be enhanced.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 7, 2013
    Assignee: Deluxe Brassware Co., Ltd.
    Inventor: Minnan Hong
  • Publication number: 20130099007
    Abstract: Mixing valve turbulence generators and methods are disclosed. Embodiments include turbulence generation apparatuses and methods that increase the turbulence of, impart swirl to, reverse the direction of, create tortuous paths for, and/or accelerate the mixing of hot and cold fluid within a valve assembly. Alternate embodiments include angled radial slots, angled surfaces and fin-like baffles to enhance the mixing of hot and cold fluids.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 25, 2013
    Applicant: MAGARL, LLC
    Inventor: Magarl, LLC
  • Patent number: 8376241
    Abstract: A single lever valve for mixing hot and cold liquids has a mixer which can internally impose an upper limit on the temperature of any liquid emerging from it. The means used may enable the upper limit to be changed by exchange of a component so that the mixer can be used in any location in an installation even though different locations might have different upper limit requirements. The mixer may take the form of a cartridge able to be exchanged with an existing cartridge to convert an “unsafe” mixer to a “safe” one.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: February 19, 2013
    Assignee: Greens Industries Limited
    Inventors: John William Green, Ian Moran
  • Publication number: 20130026242
    Abstract: The invention relates to a modular device formed by a single module (1) for installation between the hot water pipe (H) and cold water pipe (C) and a faucet (4), consisting of: two feed line sections for hot water (2) and cold water (3); a recirculation pump (5) in a bypass conduit (12) that connects the inlet conduits (2) and (3) ; a pressure switch (6) in feed section (2); a flow meter (7) arranged in feed section (2); a thermal switch (8) in section (2); a check valve (9) at the intersection of the bypass conduit (12) and section (3); and water flow regulating means (10, 11) located between the bypass conduit (12) and the hot water feed section (2).
    Type: Application
    Filed: March 29, 2010
    Publication date: January 31, 2013
    Inventor: Alfonso Cuervo-Arango Y De Cachavera
  • Patent number: 8353462
    Abstract: A hot and cold water mixing valve including a temperature adjusting dial, and a cylindrical casing having formed therein a hot water inlet and a cold water inlet is provided with a control valve member in which one end thereof is subjected to a load from a biasing member and the other end is subjected to a load from an actuator. By balancing between the loads applied by the biasing member and the actuator, a mixture ratio between the hot water which flows in through the hot water inlet and the cold water which flows in through the cold water inlet is adjusted. A temperature adjuster adjusts a position of the control valve member through the biasing member and includes a tapered skirt portion, which spreads in a radial direction, at an end on the control valve member side thereof.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 15, 2013
    Assignees: Toto Ltd., Nippon Thermostat Co., Ltd.
    Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
  • Publication number: 20120248203
    Abstract: A water supply valve cartridge in which a flow rate control rotary disk has a reduced size, so that surface friction between the flow rate control rotary disk and a flow rate control fixed disk is minimized, thus improving manipulation efficiency of the water supply valve while opening or closing the valve, and which does not sensitively respond to flatness allowance due to the reduced size of the rotary disk, thus executing stable opening and closing operation. The flow rate control fixed disk (140) has water discharge holes (142). The flow rate control rotary disk (150) has a diameter to cover only the area around the water discharge holes (142), with a pair of flow rate control grooves (151) formed on the rotary disk (150) to open only the water discharge holes (142) during rotation.
    Type: Application
    Filed: May 31, 2012
    Publication date: October 4, 2012
    Inventor: Jong Koo Kim
  • Publication number: 20120223150
    Abstract: A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).
    Type: Application
    Filed: February 23, 2012
    Publication date: September 6, 2012
    Applicant: MAGARL, LLC
    Inventor: Kevin B. Kline
  • Patent number: 8245946
    Abstract: A unitary valve block assembly is interposed between a hot and cold water outlet and a faucet assembly including a hot and cold valve to convey the initially cold portion from the hot water outlet into an accumulator during all the times when the accumulator is substantially unfilled. This accumulated water is then emitted through the cold water valve each time cold water is demanded. When the pressure ratio between the accumulator and the water source indicates that it contains substantial quantities of un-evacuated stored water the subsequent demands of hot water are conveyed directly to the hot water valve regardless of the temperature thereof.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: August 21, 2012
    Assignee: Nitroworks Corporation
    Inventors: Steven M. Greenthal, Neal W. Smith
  • Patent number: 8249727
    Abstract: A microscope configuration according to an exemplary embodiment includes a microscope system with at least one addressable component and also a control system with a plurality of control modules for influencing a plurality of test-environment parameters in a test chamber of the microscope system. The control modules are configured to be combined in modular manner and to be coupled through an interface unit with a unified bus, through which they are controlled. A control module influencing a test-environment parameter of an incubation system has a control command interface unit configured to receive at least one control command. The control command interface unit couples with a bus. A control device is coupled with the control command interface unit and influences the test-environment parameter based upon the control command. A further interface unit is coupled to the control command interface unit and outputs, again, the received control command.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 21, 2012
    Assignee: Carl Zeiss MicroImaging GmbH
    Inventors: Jörg Schaffer, Eugen Wehner
  • Publication number: 20120145801
    Abstract: The invention relates to a thermostatic mixing valve including a mixing means (31) mobile between two seats (11, 11a) for mixing fluids at different temperatures and capable of flowing between the mixing means and the two seats, respectively, so as to supply a mixed fluid; and an actuation means (37) arranged between the mixing means (31) and an absorption member (23) sensitive to the temperature of the mixed fluid for creating a controlling travel of the position of the mixing means between the two seats in order to supply a mixed fluid at a controlled temperature; wherein the absorption member (23) includes one (11a) of said seats and is capable of moving in a direction that increases the distance between the seats when the mixing means (31) is bearing on the other seat (11) so as to absorb an excess travel of the actuation means (37) due to an excessive variation of the mixed fluid temperature.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 14, 2012
    Applicant: Watts Industries France
    Inventor: Georges Menet
  • Publication number: 20120104107
    Abstract: A thermostatic mixing valve unit in an emergency wash unit has an integrated housing with cold and hot water inlets each having an associated check valve, and a tempered water discharge having a thermostat for cold/hot water mixing to provide a predetermined tempered water discharge. A high temperature limit valve responds to the water discharge temperature to permit or prevent hot water inflow when the water discharge exceeds a preset temperature. A cold water bypass valve is coupled by a diverter valve to the lower of the cold and hot water supply pressures to maintain a substantial water discharge flow when the high temperature limit valve restricts hot water flow or when the hot water check valve is stuck closed, or upon failure of the cold water supply as by sticking of the cold water check valve in a closed position or by a clogged filter screen.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Applicant: HAWS CORPORATION
    Inventor: Zoltan Goncze
  • Patent number: 8167217
    Abstract: A thermostatic element includes a metal cup that contains a material, which can expand and contract according to variation in its temperature, and is provided on an inside thereof with an insert that separates its inside volume (V1) into at least two cavities for storing the material. The thermostatic element also includes a piston which is axially reciprocally movable relative to the cup depending on whether the material expands or contracts. The insert includes at least one opening there through for enabling passage of the material between the at least two cavities.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: May 1, 2012
    Assignee: Vernet
    Inventor: Philippe Lhuillier
  • Patent number: 8167215
    Abstract: A thermostatic mixing valve for hot and cold water has a valve member for controlling the relative proportions of hot and cold water admitted to a mixing chamber according to user selection of a desired water temperature and a thermostat responsive to the mixed water temperature to adjust the position of the valve member to maintain constant the selected water temperature. The valve member is biased by a return spring in the form of a wave spring having a plurality of turns with transverse waves configured such that adjacent turns sit peak to peak. The wave spring is strong in compression and weak in torsion allowing the ends of the spring to move laterally to accommodate any misalignment in the components of the valve.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: May 1, 2012
    Assignee: Kohler Mira Limited
    Inventors: Nigel Paul Sansum, Richard Timothy Hopson
  • Publication number: 20120057857
    Abstract: In various aspects, the present application describes a tankless liquid heater receiving liquid at an inlet and providing heated liquid at an outlet. The tankless liquid heater may include a heating element for heating liquid received from the inlet. A flow sensor indicates the flow rate of the liquid received by the heating element. The heater includes a temperature sensor measuring the temperature of liquid exiting the heating element. A controller of the heater regulates the amount of electrical current energizing the heating element responsive to the flow sensor and the temperature sensor, energizes the heating element when the flow rate of the liquid exceeds a predefined value and prevents energizing the heating element when the heated liquid exceeds a predefined temperature. The heater may also include a thermostatic mixing valve for mixing the heated liquid with liquid diverted from the inlet responsive to the temperature of the heated liquid.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 8, 2012
    Inventors: Joseph Kevin Kenney, Jeff Hankins
  • Patent number: 8123140
    Abstract: A mixing valve (10) includes a valve body (12) having a hot fluid inlet (14), a cold fluid inlet (16), a mixed fluid outlet (18), and a cavity (20) in the valve body (12) between the inlets (14, 16) and the outlet (18). Mixing valve (10) includes a liner (30, 130, 230, 430, 530, 630, 730, 830) positioned in valve body (12) and a valve member (40, 140, 240, 340, 440, 540, 640, 740, 840) movable therein between a first position restricting the flow of hot fluid and a second position. Liner (30, 130, 230, 430, 530, 630, 730, 830) includes a downstream valve seat (74, 174, 274, 474, 574, 674, 774) that, when engaged by valve member (40, 140, 240, 340, 440, 540, 640, 740, 840), restricts flow of hot fluid past valve member (40, 140, 240, 340, 440, 540, 640, 740, 840).
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: February 28, 2012
    Assignee: Margarl, LLC
    Inventor: Kevin B. Kline
  • Publication number: 20120037095
    Abstract: A mixing valve comprises a housing including first and second inlet passages and a third outlet passage. The first passage is connectable in a high temperature fluid supply line. The second passage is connectable with a low temperature fluid supply. The third passage selectively communicates with the first and second passages. A valve assembly is mounted within the housing. The valve assembly includes a thermostat element and a valve body actuatable by the thermostat element. The thermostat element is contactable thermally by the high temperature fluid passing through the first passage. The valve body is operable under the influence of the thermostat element to regulate flow of low temperature fluid and provide a mix ratio of high temperature fluid and low temperature fluid that results in a mixed fluid having a selected temperature flowing out of the third passage. The mixing valve is adapted to provide feedback to a consumer of a failure condition.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 16, 2012
    Inventor: Samuel Vincent DuPlessis
  • Publication number: 20120024968
    Abstract: A water heater and thermal mixing valve assembly and method for providing a reduced discharge water temperature and a hot water temperature from the same tank. The assembly includes a tank adapted to accept and store an amount of cold water, a heater to heat the cold water held in the tank and increase the cold water temperature to a predetermined hot water temperature, at least one thermal mixing valve integrated with the tank in communication with a hot water passage and a cold water bypass conduit to provide a discharge water of a controlled temperature, the cold water bypass conduit being mounted to the cold water passage allowing the associated cold water to communicate with the tank and the thermal mixing valve.
    Type: Application
    Filed: June 15, 2011
    Publication date: February 2, 2012
    Inventors: Michael Thomas Beyerle, Jonathan D. Nelson
  • Patent number: 8074894
    Abstract: A thermostatic mixing valve for mixing a hot fluid and a cold fluid to produce a tempered mixed fluid stream. The thermostatic mixing valve may have a valve body that defines a cold fluid inlet port, a hot fluid inlet port, a mixing chamber, a mixed fluid outlet port in fluid communication with the mixing chamber, and a hot fluid outlet port in fluid communication with the hot fluid inlet port and disposed upstream of the mixing chamber. In some cases, the hot fluid outlet port may be used to provide hot water directly to an appliance or other fixture that can use non-tempered hot water.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: December 13, 2011
    Assignee: Honeywell International Inc.
    Inventor: Joseph William Beagen
  • Patent number: 8074893
    Abstract: The thermostatic cartridge (C) comprises a thermostatic assembly (2) for regulating the temperature of an outgoing mixture (F3) of incoming hot and cold fluids (F1 and F2), two ceramic disks (3, 4) for controlling the flow rates of the hot and cold fluids delivered to the thermostatic assembly, and a disk-actuating sleeve (5) receiving therein in leaktight manner the outer body (2.1) of the thermostatic assembly. To limit costs and any risk of leakage from the cartridge, the actuator sleeve is a single part that defines two internal channels (52, 53) for passing flows respectively of the hot and cold fluids from the disks to respective admission slots (2.2, 2.3) defined by the outer body of the thermostatic assembly.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: December 13, 2011
    Assignee: Vernet
    Inventor: Christian Mace