Having Oscillating Or Reciprocating Valve Patents (Class 236/12.16)
  • Patent number: 9334971
    Abstract: A universal valve body includes a front face having a circular opening for receiving a valve cartridge, a rear face, a frustoconical side wall connecting the front face to the rear face, and a first inlet port and a first outlet port obliquely disposed in the frustoconical side wall. A cap for the valve body includes a base and a structure extending from the base. The structure extending from the base may block at least one of the inlet port or outlet port in the valve body. A service valve for a valve body includes a base rotatable between an open orientation and a closed orientation relative to the valve body and a tab extending from the base. When the base is in the open orientation, the tab prevents removal of a cover from the valve body.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 10, 2016
    Assignee: KOHLER CO.
    Inventors: Douglas J. Brouwer, Michael W. Smith, Michael A. Niver, Chad J. Cochart
  • Patent number: 9260844
    Abstract: A shower head is configured to receive a first fluid conduit and a second fluid conduit, where the shower head includes a mixer valve within a portion thereof that is configured to receive a first fluid from the first fluid conduit and a second fluid from the second fluid conduit and to output the first fluid or the second fluid or a blend the first and second fluids to a shower head outlet.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 16, 2016
    Assignee: KOHLER MIRA LIMITED
    Inventor: Kevin T. Peel
  • Patent number: 9140373
    Abstract: A thermally actuated valve is provided herein. The thermally actuated valve includes a valve fitting, a valve body, and a movement control mechanism. The valve fitting includes an active member to selectively activate based on an input. The valve body includes a passive wax member that moves between a passive contraction state and a passive expansion state based on a passive temperature. The movement control mechanism is disposed between the valve fitting and the valve body. The movement control mechanism controls movement of the valve body between an open state and a dosed state based on movement of at least one of the active member and the passive wax member.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 22, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John P. Franz, Michael Lawrence Sabotta, Tahir Cader
  • Patent number: 9027844
    Abstract: A water delivery system is provided, including at least one sink with a faucet device having a cold water faucet part and a hot water faucet part, a cold water line to the at least one sink, a hot water line to the at least one sink, and a valve associated with the at least one sink allowing in an open state the transport of water between the hot water line and the cold water line and inhibiting in a closed state the transport of water between the hot water line and the cold water line, wherein the open state and the closed state of the valve depend solely on whether a differential pressure across the valve is below or above a threshold value.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 12, 2015
    Assignee: Xylem IP Holdings LLC
    Inventor: Karsten Laing
  • Publication number: 20150028112
    Abstract: Embodiment thermostatic valves are protected against damage to the wax motor from the leakage of hot water into the valve when the hot water inlet is closed. Embodiments include an improved temperature motive means with fewer parts than conventional valves and with an improved sealing relation between the wax motor/shuttle and the water ports.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: Acorn Engineering Company
    Inventors: James C. Graves, Dejan Zivancevic
  • 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
  • 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: 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: 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: 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
  • Publication number: 20130062422
    Abstract: An electronic shower system including a mixing valve operably coupled to a mixing valve drive, and a diverter valve operably coupled to a diverter valve drive and in fluid communication with the mixing valve. A controller is in communication with the mixing valve drive and the diverter valve drive. A user interface includes a removable module in communication with the controller.
    Type: Application
    Filed: May 23, 2011
    Publication date: March 14, 2013
    Inventors: Garry R. Marty, Todd Huffington, Kyle R. Davidson, Brian W. Johnson, Larry D. O'Cull, Patrick B. Jonte
  • 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: 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
  • Patent number: 7913926
    Abstract: A thermostatic mixing valve (TMV) having a mixing chamber with a plurality of pockets defined therein. The mixing chamber receives cold water flow and hot water flow that has been passed through respective flow inlets and mechanically forced into the pockets defined within the chamber due to axial movement of the plunger. As the hot and cold flow moves into and out of the pockets, the flow streams disperse rather than being maintained in separate flow streams toward the thermostatic element. Because of the increased agitation, the thermostatic element is therefore able to sense a more accurate mixed flow temperature even at low flow rates.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: March 29, 2011
    Assignee: Watts Water Technologies, Inc.
    Inventor: Zoltan Goncze
  • Patent number: 7909261
    Abstract: A device including a primary fluid inlet, a secondary fluid inlet, a mixing chamber connected to the primary fluid inlet via en ejector nozzle and to the secondary fluid inlet, a fluid outlet connected to the mixing chamber for outflow of gas from the mixing a chamber, a valve arrangement having a valve member arranged to influence the secondary fluid inlet so as to adjust the amount of gas entering the mixing chamber from the secondary fluid inlet and a a temperature-dependent regulator connected to the valve arrangement for controlling the position of the valve member and thereby the amount of gas entering the mixing chamber from the secondary fluid inlet in dependence upon the temperature of the gas flowing through the primary fluid inlet or the fluid outlet. An aircraft anti-icing system including such a device and the use thereof.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: March 22, 2011
    Assignee: SAAB AB
    Inventors: Hans Ellström, Mats Bergman
  • Publication number: 20100314457
    Abstract: A hot and cold water mixing valve including a temperature adjusting dial D, and a cylindrical casing 1 having formed therein a hot water inlet a and a cold water inlet b is provided with a control valve member 2 in which one end is subjected to a load from a biasing member 4 and the other end is subjected to a load from an actuator 5, and an opening/closing ratio between the hot water inlet a and the cold water inlet b is changed by balancing between the loads applied by the biasing member 4 and the actuator 5, to adjust a mixture ratio between the hot water which flows in through the hot water inlet a and the cold water which flows in through the cold water inlet b, and a temperature adjusting means (8, 900) whose one side is fixed to the temperature adjusting dial D and whose other side adjusts a position of the control valve member 2 through the biasing member 4.
    Type: Application
    Filed: December 5, 2007
    Publication date: December 16, 2010
    Applicants: TOTO LTD., NIPPON THERMOSTAT CO., LTD.
    Inventors: Kensaku Todaka, Hideyuki Matsui, Eiji Seki, Isao Negishi
  • Patent number: 7850088
    Abstract: The present invention is directed to a thermostatic water mixing valve having a sub-base coupled to a base, both having a hot water inlet, a cold water inlet and a mixed water outlet. A disk assembly including a lower or stationary disk and an upper or rotatable disk are positioned on the base. The lower disk also has a peripheral notch that receives an extent of an engaging member that extends from a sidewall of the base, while the upper disk has a peripheral cavity that also receives an extent of the engaging member. A cap is coupled to the upper disk, wherein the cap and the upper disk rotate as a unit with respect to the lower disk. The cap has a hot water cavity and cold water cavity positioned about a central opening. A cartridge assembly includes a collar with at least one aperture aligned with the cold water cavity of the cap and a depending skirt with at least one aperture aligned with the hot water cavity of the cap.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: December 14, 2010
    Assignee: Xiamen Lota International Co., Ltd.
    Inventors: Wu Wei, Keping Li
  • Patent number: 7845574
    Abstract: The cartridge comprises two ceramic disks (20, 24) for regulating the temperature and flow of a mixture (M) of two entering fluids. In order to ensure that the temperature of the mixture remains lower than a predetermined value, the cartridge comprises thermostatic means (16) designed for, in the event of a high-temperature mixture, automatically shutting off, upstream from these disks, the circulation of the entering fluid (C) of the highest temperature.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: December 7, 2010
    Assignee: Vernet
    Inventor: Christian Mace
  • Publication number: 20100219255
    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: Application
    Filed: March 5, 2010
    Publication date: September 2, 2010
    Applicant: Kohler Mira Limited
    Inventors: Nigel Paul Sansum, Richard Timothy Hopson
  • Patent number: 7744007
    Abstract: Thermostatic mixing valves and systems for mixing fluids of dissimilar temperature are disclosed. A thermostatic mixing valve in accordance with an illustrative embodiment of the present invention can include an elongated valve body defining a cold fluid inlet, a hot fluid inlet, a mix fluid outlet and a mixing chamber, a fluid flow regulator for adjusting the flow of cold and hot fluid injected into the mixing chamber, and temperature selection means for adjusting the temperature of fluid contained within the mixing chamber. The valve body may have a vertical, in-line configuration wherein the hot fluid inlet, mixing chamber, and mix fluid outlet are substantially axially aligned along a vertical longitudinal axis of the valve body, allowing hot fluid to pass substantially vertically through the valve body towards the mix fluid outlet.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: June 29, 2010
    Assignee: Honeywell International Inc.
    Inventors: Joseph W. Beagen, Steve Goins
  • Publication number: 20100147963
    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. The valve is particularly for use with safety devices, such as eyewash and drench shower stations, and 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: Application
    Filed: September 3, 2009
    Publication date: June 17, 2010
    Applicant: Watts Water Technologies, Inc.
    Inventor: Zoltan Goncze
  • Patent number: 7665671
    Abstract: Thermostatic mixing valve has a valve body, a cold fluid inlet, a hot fluid inlet, and a fluid outlet. Mixing chamber is located between the respective fluid inlets and the fluid outlet. Thermostatic element is located in or adjacent to the mixing chamber and is arranged to contact a piston at one end and via a mixing tube the valve body at the other end. Piston regulates flow through the fluid inlets into the mixing chamber. The piston is can move due to continued expansion of the thermostatic element after the piston has closed off the second fluid inlet. Valve body has an internal thread with which a thread on mixing tube permits adjustment of the relative position of the thermostatic element within the valve body and hence the set temperature of the thermostatic mixing valve.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: February 23, 2010
    Assignee: GSA Industries (Aust) Pty Ltd
    Inventors: Aaron Christian Cunningham, Tony Mark Scott
  • Publication number: 20090200388
    Abstract: There is described a mixer tap with integrated thermostatic mixing valve (TMV). The tap comprises in a single housing: hot and cold water inlets; an outlet for mixed water; hot and cold lever controls and a thermostatic mixing device within the single housing to prevent water above a certain temperature being emitted from the common outlet. The cold water control opens a fluid path from the cold inlet to the common outlet, bypassing said thermostatic mixing device, allowing better assurance of purity. The thermostatic mixing device and strainer/check valve cartridges are housed in an internal body so as to be readily accessible for servicing after installation of the device by removing only a cap part of the housing.
    Type: Application
    Filed: December 22, 2006
    Publication date: August 13, 2009
    Applicant: HORNE ENGINEERING LIMITED
    Inventor: Michael Wellesley Grahame Jarvis
  • Publication number: 20080283620
    Abstract: A thermostatic mixer device for sanitary use with a body, an inlet passage for hot water, an inlet passage for cold water, and a distribution passage for mixed water; a thermometric element installed partly within the distribution passage; a valve connected to the thermometric element and arranged so as to open or throttle, in a complementary fashion, the inlet passages, and a spring arranged so as to bias the valve; in which the spring is formed of a corrugated section. Illustratively, the spring is housed in an opening that extends peripherally around the distribution passage in which is installed the thermometric element, and this peripheral opening may constitute the internal portion of the inlet passage for the hot water.
    Type: Application
    Filed: April 10, 2008
    Publication date: November 20, 2008
    Inventor: Alfons Knapp
  • Publication number: 20080156887
    Abstract: The described method and apparatus pertains namely to the HVAC (Heating, Ventilating, and Air Conditioning) industry, though its many functions extend into any and all forms of air-fluid movement, metering, distribution, and containment. Essentially, the scope of operation of the method and apparatus encompasses all forms of scientific and engineering measurement dealing with fluid dynamics, fluid statics, fluid mechanics, thermal dynamics, and mechanical engineering as they pertain to precise, articulated control of air-fluid distribution and delivery. The described method and apparatus offers complete, comprehensive, and correct utilization of air-fluid movers and terminal devices under unique sensor logic control, from initial lab testing stages through to equipment cataloguing, selection, design and construction of any and all air-fluid distribution systems in entirety, whereas previously there was no such cohesive, total and terminal method of control for these systems or their components.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 3, 2008
    Inventor: Daniel Stanimirovic
  • Publication number: 20080093470
    Abstract: A constant temperature valve core with dual stems and dual functions is provided. The constant temperature valve core with dual stems and dual functions includes a valve body, a return spring, a regulator, a water mixer, a temperature sensor, and a temperature regulating assembly. The return spring, the regulator, the water mixer, the temperature sensor, and the temperature regulating assembly are sequentially disposed in the valve body. The constant temperature valve core with dual stems and dual functions further includes a sheath and a flow rate adjusting assembly. The sheath is arranged around the valve body, and the flow rate adjusting assembly is slidably disposed between the sheath and the valve body.
    Type: Application
    Filed: December 20, 2006
    Publication date: April 24, 2008
    Inventor: Xie Qingjun
  • Patent number: 7163157
    Abstract: An automatic compensating valve, e.g., for individual shower and tub/shower combination fixtures, has a valve body defining cold and hot water inlet flow passageways, a mixing chamber, a mixed temperate water outlet flow passageway, and an axial bore. The valve includes a plunger that defines, with other elements of the valve, a first orifice for communication of the cold water inlet with said mixing chamber and a second orifice for communication of hot water inlet with mixing chamber. The plunger is mounted within a mixing subassembly for axial movement within the bore, including in response to temperature of water within the mixing chamber to vary the ratio of flow of cold water through the first orifice to flow of hot water through the second orifice. The first orifice and the second orifice are arranged for flow of water transverse to axial movement of the plunger within the bore.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: January 16, 2007
    Assignee: Watts Regulator Co.
    Inventors: Zoltan Goncze, James C. Graves
  • Patent number: 7140394
    Abstract: A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature. The valve assembly includes an improved mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates, including rates as low as two gallons per minute. The improved mixing performance is accomplished by a plurality of baffles sequentially disposed along the flow path within the mixing chamber and extending at an angle in opposition to the flow path. Each baffle exhibits a paisley shape and is angularly displaced from the adjacent baffles to turn the fluid flow, thereby optimally mixing the hot and cold fluids over a wide range of flow rates while minimizing the pressure drop between the valve inlet and outlet.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: November 28, 2006
    Assignee: Magarl, LLC
    Inventor: Robert B Eveleigh
  • Patent number: 6994266
    Abstract: A flow mixer shuttle having first and second annular rims for controlling the flow of hot and cold water, a central hub connected to the rims, a seat on the hub for supporting a thermostatic capsule for controlling the position of the shuttle to control the flow of hot and cold water, and a flow directing sleeve for directing mixer flow to the flange end of the capsule. A flow mixer incorporating the shuttle is also described, as is a single control flow mixer.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: February 7, 2006
    Assignee: Valquest Limited
    Inventor: Jeremy Philip Swadling
  • Patent number: 6834714
    Abstract: A variable constant volume cooling/heating unit comprising a warm fluid delivery pipe; a cool fluid delivery pipe wherein the warm fluid deliver pipe and cool fluid deliver pipe lead to a two position three way valve, a modulating three way valve for mixing the flow of fluid, a thermostat to control the two position three way valve and the modulating three way valve, a return fluid pipe, means for pumping the fluid through a coil and means for drawing air to be conditioned over the coil. A damper controlled by the thermostat for controlling incoming outside out into the variable constant volume cooling/heating unit.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: December 28, 2004
    Inventor: Paul J. Walsh
  • Publication number: 20040238650
    Abstract: In a mixing valve for cold and hot water with thermostatic control of the mixed-water temperature by a thermostat (4) that is connected with a tubular double valve slide (3a, 3b) that is positioned by a temperature selector (5) and that is held in a housing (1) having at least one cold-water inlet (10), one hot-water inlet (11), and one mixed-water outlet (12), the inlet ports (22 and 23) of the mixing valve of the double valve slide (31, 3b) being oppositely controlled at opposite ends, it is suggested that the double valve slide (3a, 3b) have an annular web (31, 31a, 30b) formed with a smaller-diameter partition sleeve (31) that is axially shiftable at least at its end in a bore (24, 26) and that downstream of the inlet ports (22 and 23) the hot water and cold water each flow through respective passages (301) opening into an annular mixing compartment (302) in the web (30, 30a, 30b), the mixing compartment (302) extending radially through the partition sleeve (31) such that exiting mixed water is directed t
    Type: Application
    Filed: February 23, 2004
    Publication date: December 2, 2004
    Inventors: Frank-Thomas Luig, Kai Huck
  • Publication number: 20040129008
    Abstract: Thermostatic expansion valve for a vehicle air-conditioning system including a housing and a power element supported by the housing. The power element includes a diaphragm, and a pressure pad disposed against the diaphragm. The pressure pad may be formed in one piece from copper, a copper alloy, or another material, which material may also be a blend, composite, mixture, or other combination, having a thermal conductivity of at least about 800 BTU-in/hr-ft2-° F. (115 W/m-K), and preferably 1200 BTU-in/hr-ft2-° F. (170 W/m-K), and more preferably at least about 2000 BTU-in/hr-ft2-° F. (280 W/m-K), and a density of at least about 0.3 lb/in3 (8 g/cm3), and is connected via a stem to a valve element in the housing to control the refrigerant flow between the condensor and evaporator. The use of such material in the pressure pad reduces the susceptibility of the valve to external temperature changes and reduces the hunting of the valve.
    Type: Application
    Filed: October 17, 2003
    Publication date: July 8, 2004
    Inventors: Eugene A. Dianetti, Roy J. Nungesser, Daniel R. Rice, Gary A. Nearpass, Cary Haramoto
  • Publication number: 20040104277
    Abstract: A variable constant volume cooling/heating unit comprising a warm fluid delivery pipe; a cool fluid delivery pipe wherein the warm fluid deliver pipe and cool fluid deliver pipe lead to a two position three way valve, a modulating three way valve for mixing the flow of fluid, a thermostat to control the two position three way valve and the modulating three way valve, a return fluid pipe, means for pumping the fluid through a coil and means for drawing air to be conditioned over the coil. A damper controlled by the thermostat for controlling incoming outside out into the variable constant volume cooling/heating unit.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 3, 2004
    Inventor: Paul J. Walsh
  • Publication number: 20040089728
    Abstract: The invention concerns a thermostatic mixer valve for hot and cold water, which comprises a rotary delivery regulator device (15), a thermostatic bulb (17) positioned coaxially to said regulator device, and a mixer control device (16) working in conjunction with the thermostatic bulb. The delivery regulator device (15) and the mixer control device (16) with relative thermostatic bulb (17) are assembled and housed ready to operate in a cartridge body (10) inserted as a whole in a tap body which has means of transporting hot and cold water towards a mixer chamber and means of delivering the water towards the user point.
    Type: Application
    Filed: March 27, 2003
    Publication date: May 13, 2004
    Inventor: Oscar Nember
  • Publication number: 20040084541
    Abstract: A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature. The valve assembly includes an improved mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates, including rates as low as two gallons per minute. The improved mixing performance is accomplished by a plurality of baffles sequentially disposed along the flow path within the mixing chamber and extending at an angle in opposition to the flow path. Each baffle exhibits a paisley shape and is angularly displaced from the adjacent baffles to turn the fluid flow, thereby optimally mixing the hot and cold fluids over a wide range of flow rates while minimizing the pressure drop between the valve inlet and outlet.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 6, 2004
    Inventor: Robert B. Eveleigh
  • Publication number: 20040035944
    Abstract: A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature. The valve assembly includes an improved mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates, including rates as low as two gallons per minute. The improved mixing performance is accomplished by a plurality of baffles sequentially disposed along the flow path within the mixing chamber and extending at an angle in opposition to the flow path. Each baffle exhibits a paisley shape and is angularly displaced from the adjacent baffles to turn the fluid flow, thereby optimally mixing the hot and cold fluids over a wide range of flow rates while minimizing the pressure drop between the valve inlet and outlet.
    Type: Application
    Filed: August 21, 2003
    Publication date: February 26, 2004
    Inventor: Robert B. Eveleigh
  • Publication number: 20040035943
    Abstract: The invention relates to a sanitary mixing unit (1), in particular for wall installation, comprising a thermostatic device with a thermostatic element (16), whereby an excess travel spring (40) and a return spring (41) act on the thermostatic element (16). According to the invention, a sanitary mixing unit which is of simple and economical construction and with a low installation depth may be provided, whereby the excess travel spring (40) and the return spring (41) act on the thermostatic element (16) in the same direction, such that in the case of excess travel the spring forces of the excess travel spring (40) and the return spring (41) are additive.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 26, 2004
    Inventors: Konrad Bergmann, Josef Ems
  • Publication number: 20040016815
    Abstract: The invention relates to a sanitary mixing unit (1), in particular for wall installation, comprising a cartridge (6) with an external housing (12), a flow adjustment device, a temperature adjustment device and a thermostatic device, whereby the flow adjustment device comprises a fixed valve disc (13) and a rotating valve disc (14) co-operating therewith. According to the invention, a mixing unit in which the functional matching of the inlet properties to the properties of the connection may be achieved in a simple and economical manner is provided, whereby an inner housing (15) which may be rotated through at least 180° co-axially to the outer housing (12), has the thermostat device (15) arranged therein, the rotating valve disc (14) is fixed to the inner housing (15) and the fixed valve disc (13) is fixed to the outer housing (12).
    Type: Application
    Filed: August 19, 2003
    Publication date: January 29, 2004
    Inventors: Konrad Bergmann, Josef Ems
  • Patent number: 6648234
    Abstract: A mixing valve has a housing and a stem axially displaceable to adjust the output temperature of the valve. A tubular core body fixed in the housing an axially displaceable coupling body having an inner end axially engageable with the stem and an outer end formed with a screwthread. Interengaging formations on the coupling body and the core body inhibit rotation of the coupling body in the core body while permitting axial displacement of the coupling body in the core body. A knob rotatable about the axis has a screwthread meshing with the screwthread of the coupling-body outer end. A retainer engaged between the knob and the core body inhibits axial displacement of the knob on the core body and permits rotation of the knob on the core body so that rotation of the knob on the core body axially shifts the coupling body in the core body.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: November 18, 2003
    Assignee: Friedrich Grohe AG & Co. KG
    Inventor: Christian Frankholz
  • Publication number: 20030201332
    Abstract: The present invention refers to a dual control thermostatic mixer with a regulator suited to stabilize the mixed water temperature upon exit, using a stabilizing mechanism and a switching device for choosing either spout or handset flow. It has a main body (A), a close, setting and commutation valve (B), a switch handle lever (C) and a water temperature-regulating knob (D). The main body of the mixer (A) has central part internally divided and separated by four ringed chambers were the switching valve set (B) operates.
    Type: Application
    Filed: March 3, 2003
    Publication date: October 30, 2003
    Applicant: EUROEXPOR
    Inventor: Manuel Joaquim Costa e Silva
  • Publication number: 20030085290
    Abstract: A mixing valve has a housing and a stem axially displaceable to adjust the output temperature of the valve. A tubular core body fixed in the housing an axially displaceable coupling body having an inner end axially engageable with the stem and an outer end formed with a screwthread. Interengaging formations on the coupling body and the core body inhibit rotation of the coupling body in the core body while permitting axial displacement of the coupling body in the core body. A knob rotatable about the axis has a screwthread meshing with the screwthread of the coupling-body outer end. A retainer engaged between the knob and the core body inhibits axial displacement of the knob on the core body and permits rotation of the knob on the core body so that rotation of the knob on the core body axially shifts the coupling body in the core body.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 8, 2003
    Applicant: Friedrich Grohe AG & Co. KG
    Inventor: Christian Frankholz
  • Publication number: 20030075611
    Abstract: A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature. The valve assembly includes an improved mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates, including rates as low as two gallons per minute. The improved mixing performance is accomplished by a plurality of baffles sequentially disposed along the flow path within the mixing chamber and extending at an angle in opposition to the flow path. Each baffle exhibits a paisley shape and is angularly displaced from the adjacent baffles to turn the fluid flow, thereby optimally mixing the hot and cold fluids over a wide range of flow rates while minimizing the pressure drop between the valve inlet and outlet.
    Type: Application
    Filed: October 24, 2001
    Publication date: April 24, 2003
    Inventor: Robert B. Eveleigh
  • Publication number: 20020179723
    Abstract: The invention relates to an electronic mixed water preparation device. Previously such methods could only be implemented in an industrial environment or in combination with additional devices. The inventive mixed water preparation device (1) is a compact flush-mounted unit for electronically controlling mixed water in private households. The compact inventive unit comprises an electronic controller (6) and a step motor which acts upon a mechanical actuator. The preparation of said mixed water can be exclusively carried out in conjunction with a temperature sensor (13) whose measuring values are used to detect throughflow and excess temperature, in addition to actual temperature values.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 5, 2002
    Inventors: Volker Wack, Heiko Petzold
  • Publication number: 20020050529
    Abstract: A thermostatic valve contains a control system comprising two disks for the quantity control. One of the two disks is placed in fixed manner in the valve casing, whereas the second disk can be rotated. Each of the two disks contains an inlet opening for cold water and an inlet opening for hot water. These openings are made to coincide to a greater or lesser extent for the quantity control.
    Type: Application
    Filed: January 18, 2000
    Publication date: May 2, 2002
    Inventor: Werner Lorch
  • Publication number: 20020047050
    Abstract: A regulating valve for a heat-transferring medium has a valve member controllable primarily by an electrical actuating member, but in the event of failure of the electrical actuating member, a thermostatic actuating member, operating independently of the electrical actuating member and of electric power, is provided in order to prevent damage to the system by driving the valve member when a predetermined temperature is exceeded.
    Type: Application
    Filed: October 25, 2001
    Publication date: April 25, 2002
    Inventors: Peter Leu, Jorg Luckner
  • Publication number: 20020011523
    Abstract: A dual control assembly for a shower fitting comprising a thermostatic valve in the form of a cartridge removably fitted in the mixing chamber of the fitting, and a flow rate valve, the two valves being operatively linked or coupled together, for example by a sleeve. The valves are co-axially aligned and provided with respective control knobs which are disposed at the same end of the shower fitting.
    Type: Application
    Filed: September 21, 2001
    Publication date: January 31, 2002
    Inventor: Frank Procter
  • Patent number: 6315209
    Abstract: A mixing valve includes a manifold defining a hot fluid inlet, a cold fluid inlet, a temperature-controlled fluid outlet, and a cold fluid outlet. The cold fluid inlet is in fluid communication with the cold fluid outlet, and the cold fluid inlet and the hot fluid inlet are in fluid communication with the temperature-controlled fluid outlet. The manifold further defines a mixing chamber for mixing of cold fluid from the cold fluid inlet and hot fluid from the hot fluid inlet. Mixed fluid from the mixing chamber is delivered to the temperature-controlled fluid outlet. A temperature-controlled device associated with the hot fluid inlet controls the volume of flow from the hot fluid inlet to the mixing chamber. The mixing valve further includes a one-way check valve located between the hot fluid inlet and the cold fluid outlet for limiting flow of hot fluid to the cold fluid outlet.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: November 13, 2001
    Assignee: Watts Regulator Company
    Inventor: Dale S. Tripp
  • Patent number: 6286464
    Abstract: A water heating system in which the output water temperature is regulated by a mixing valve which allows the temperature of the water contained within the water heater to be maintained at a much higher temperature without compromising safety. Significantly more hot water is therefore available for use yet the maximum temperature supplied to the various points of usage are within the safe limits. The system can be additionally configured to supply unmixed hot water to points of usage where a higher temperature is needed and a user is not exposed to the water such as for example in a dishwasher.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: September 11, 2001
    Assignee: Robertshaw Controls Company
    Inventors: Anthony W. Abraham, Raymond-Paul Joubran