Tubular Valve Member Patents (Class 236/12.2)
  • Patent number: 10474170
    Abstract: Embodiments include thermostatic valves for showers and tubs in which the temperature is regulated by a thermostatic motor/element. Both the flow from the valve and the temperature are controlled by a rotary stem. Hot and cold water is pre-mixed by passage through the coils of a return spring into a mixing chamber and a ceramic valve at the top of the mixing chamber controls flow of mixed water from the mixing chamber into an outlet chamber where fluctuations in the water temperature are eliminated before the water is conveyed to the shower or tub.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 12, 2019
    Assignee: Acorn Engineering Company
    Inventors: James C. Graves, Boris Quijada, Thomas O'Brien
  • Patent number: 10268217
    Abstract: Thermostatic mixing cartridge (3) for sanitary taps (1) comprising A) a manual control member (9) arranged to perform a control stroke with a single degree of freedom; B) a thermostatic element assembly (15) arranged to actuate the thermostatic valve (19) expanding or contracting according to the temperature of the liquid that laps around a thermostatic bulb (17) into the mixing chamber (25); C) an adjustment shaft (37) actuated by the manual control member (9) and arranged to C.1) to rotate the inlet shutter (11) so as to open the first (27) and the second inlet mouth (29); and C.2) to move the thermostatic element assembly (15) at least according to the predetermined adjustment direction (AR) so as to adjust the predetermined reference temperature. The cartridge lends itself to be realized with very small dimensions, forcing a user to open the tap supplied with cold water only, with energy savings.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: April 23, 2019
    Assignee: Huber Cisal Industrie S.p.A.
    Inventor: Jean Jacques Rodriguez
  • Patent number: 10167963
    Abstract: A precision ceramics control valve includes a valve housing, a rotary base mounted in the valve housing, a slide mounted in the valve housing and located under the rotary base, a valve lever pivotally mounted in the rotary base and having an upper end protruding from the valve housing and a second end provided with a drive portion connected with the slide, a movable valve plate mounted in the valve housing and located under the slide, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on a lower end of the valve housing to stop the fixed valve plate, the movable valve plate, the slide and the rotary base, and a temperature limiting device mounted in the valve seat.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: January 1, 2019
    Assignee: Hain Yo Enterprises Co., Ltd.
    Inventor: Chia-Po Chang
  • Patent number: 10167964
    Abstract: A precision ceramics control balance valve includes a valve housing, a rotary base mounted in the valve housing, a slide mounted in the valve housing and located under the rotary base, a valve lever pivotally mounted in the rotary base and having an upper end protruding from the valve housing and a second end provided with a drive portion connected with the slide, a movable valve plate mounted in the valve housing and located under the slide, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on the valve housing to stop the fixed valve plate, the movable valve plate, the slide and the rotary base, a temperature limiting device mounted in the valve seat, a pedestal connected with the valve seat, and a balance unit mounted in the pedestal.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: January 1, 2019
    Assignee: Hain Yo Enterprises Co., Ltd.
    Inventor: Chia-Po Chang
  • Patent number: 10049858
    Abstract: Systems and methods for protecting vacuum seals in a plasma processing system are provided. The processing system can include a vacuum chamber defining a sidewall and an inductive coil wrapped around at least a portion of the sidewall. A vacuum seal can be positioned between the sidewall of the vacuum chamber and a heat sink. A thermally conductive bridge can be coupled between the sidewall and heat sink. Further, the thermally conductive bridge can be positioned relative to the vacuum seal such that the thermally conductive bridge redirects a conductive heat path from the sidewall or any heat source to the heat sink so that the heat path bypasses the vacuum seal.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 14, 2018
    Assignee: MATTSON TECHNOLOGY, INC.
    Inventors: Vladimir Nagorny, Steven Parks, Martin Zucker
  • Patent number: 9898017
    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: Grant
    Filed: July 23, 2013
    Date of Patent: February 20, 2018
    Assignee: Acorn Engineering Company
    Inventors: James C. Graves, Dejan Zivancevic
  • Patent number: 9740215
    Abstract: The invention relates to a thermostatic mixing valve with integrated flow diverter provided with a first coupling for a control lever for the flow rate adjustment and the flow diversion through a valve group that is housed between a base and a cylindrical body, and with a second coupling for a knob for the temperature adjustment through a thermostatic device, said valve including a member for the transmission of the flow rate adjustment and flow diversion control that directly connects the control lever to the valve group passing through the cylindrical body without moving it, the latter being also enclosed within an external casing secured to the base and achieving a watertight sealing with the base.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 22, 2017
    Inventor: Manolo Ruga
  • Patent number: 9725890
    Abstract: A shower jet device, includes a spray needle arranged in a spray nozzle; a cold water inflow space and a cold water jet outlet formed between the spray nozzle and the spray needle; a hot water inflow space formed between the spray nozzle and a valve body; wherein a cold water inlet respectively in communication with a cold water opening and the cold water inflow space; and a hot water inlet is respectively in communication with a hot water opening and the hot water space.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: August 8, 2017
    Assignee: GUANGZHOU SEAGULL KITCHEN AND BATH PRODUCTS CO., LTD.
    Inventors: Xunping Yuan, Zhiqiang Tang, Xianxin Mai
  • Patent number: 9450227
    Abstract: A thermostatic valve, coupled to an electrochemical power source and having: a valve body; a first fluid inlet for a hot electrolytic fluid; a second fluid inlet for a cold electrolytic fluid; an outlet supplying a mixed electrolytic fluid; and regulating means for adjusting the mixing. The valve body defines a first opening, in communication with the second fluid inlet for the cold electrolytic fluid; and a second opening, in communication with the first fluid inlet for the passage of the hot electrolytic fluid; the regulating means include an adjustment baffle, interposed between the first and second openings and the outlet, and rotatably drivable to vary a useful passage section and adjust the mixing. The first and second openings are designed to mix the electrolytic fluids in different proportions, maintaining the flow rate and introduced load losses unvaried, as the rotation angle of the adjustment baffle varies.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: September 20, 2016
    Assignee: Whitehead Sistemi Subacqueri S.P.A.
    Inventor: Francesco Lo Presti
  • Patent number: 9342080
    Abstract: A cartridge comprising a slide valve for regulating the temperature of a mixture of hot and cold fluids is provided. The slide valve is, under the action of a thermostatic element and with respect to an external casing of the cartridge, movable along the central axis of the casing so as to inversely vary the respective cross sections of flow of a cold-fluid inlet and a hot-fluid inlet. Therefore the cartridge can, in an economical and easy manner, regulate high flows of hot fluid and/or cold fluid. The slide valve delimits externally a groove for channelling hot fluid, which can distribute the supply of hot fluid from the hot-fluid inlet over the entire external periphery of the slide valve, and/or a groove for channelling cold fluid which can distribute the supply of cold fluid from the cold-fluid inlet over the entire external periphery of the slide valve.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: May 17, 2016
    Assignee: VERNET
    Inventors: William Da Silva, Emmanuel Platet
  • Publication number: 20150102112
    Abstract: An integrated water valve includes an extendible temperature-regulation rod disposed in a main body. Temperature of water can be adjusted by moving the temperature-regulation rod to change ratio of cold water and hot water. Also, water flow can be controlled by rotating the main body with respect to a seat at the bottom thereof. Thus, the present invention can be adapted for adjusting water flow and water temperature.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Inventor: Tsai-Chen YANG
  • 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: 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
  • Publication number: 20140097256
    Abstract: A faucet has a multiway tube and a water mixer installed in the multiway tube. The water mixer has a balance unit and a mixing element, and the water mixer can be connected to two water sources. When the pressure of one water source varies rapidly, the balance element can modulate the effect that may influence the flow rate of each water source. The mixing element is, on the other hand, adapted to mix the two water flows. As such, the faucet of the present invention can stabilize the temperature of the mixed water outlet.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    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: 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: 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
  • Patent number: 8366013
    Abstract: A temperature controlling valve serves to adjust a mixed rate of cold and hot waters to control a temperature of the mixed cold and hot water by using a water supplying means having a first pore to flow the cold water, a second pore to flow the hot water, a first shield to close the first pore, and a second shield to close the second pore; wherein when the temperature control set is driven by a driving motor to rotate at an original position, the first and the second shields are actuated to close the first and the second pores so that the cold and the hot waters flow into a valve core to be mixed together, wherein an inverse relationship exists between the cross sectional area of the first pore to flow the hot water and the cross sectional area of the second pore to flow the cold water.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: February 5, 2013
    Assignee: Globe Union Industrial Corp.
    Inventors: Yuanhao Chang, Tsungyi Lo
  • Publication number: 20120255116
    Abstract: A water delivery system operable hands-free by, for example, a foot-operated pedal controller, or a non-contact controller, such as a presence and voice actuated circuit that are operatively connected through a power source, transmission and valve assembly in cooperation with a water spout at a water basin or bowl.
    Type: Application
    Filed: October 4, 2011
    Publication date: October 11, 2012
    Inventor: Harmon Houghton
  • Patent number: 8181886
    Abstract: The invention provides a thermostatic mixing valve for use within a water discharge fixture. The mixing valve comprises a cover defining an interior region, a stationary lower disk residing within the interior region, and a moveable upper disk. The lower and upper disks each have a central opening and at least one peripheral groove, wherein the grooves are alignable to form a peripheral water outlet. The mixing valve also includes a spindle assembly extending through the cover region and operably connected to the upper disk to enable alignment of the grooves and formation of the water outlet. A pressure relief cavity is formed between the spindle assembly and the cover, and wherein water flows through an opening in the spindle assembly and into the relief cavity.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: May 22, 2012
    Assignee: Xiamen Lota International Co., Ltd.
    Inventors: Keping Li, Jusheng Xiong
  • 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
  • Patent number: 8056824
    Abstract: A successive type constant temperature valve core with single handle comprises a valve cover, a temperature adjusting assembly, a thermo sensitive element and a control assembly for hot and cold inlet water, combining in the chamber of the valve cover from top to bottom, wherein, the control assembly for hot and cold water inlet comprises a holder of the thermo sensitive element, an adjuster, a put-off spring, a buffer spring and a holding piece.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: November 15, 2011
    Assignee: Suprema (Zhuhai J/V) Thermostatic Sanitaryware Co., Ltd.
    Inventor: Qingjun Xie
  • Publication number: 20110089249
    Abstract: A thermostatic mixing valve for mixing a hot fluid and a cold fluid to produce a tempered mixed fluid stream is disclosed. In one illustrative embodiment, the thermostatic mixing valve includes a cold fluid inlet for passing a flow of cold fluid, a hot fluid inlet for passing a flow of hot fluid, and an outlet for passing a flow of tempered fluid. A fluid flow regulator may be used to regulate the relative flow of cold fluid from the cold fluid inlet and hot fluid from the hot fluid inlet to produce the flow of tempered fluid at the outlet. A pressure reducing element may be situated in the hot fluid inlet upstream of the fluid flow regulator. The pressure reducing element may, for example, help increased the temperature stability of the tempered fluid at the outlet given variations in the temperature and/or pressure of the hot and/or cold fluids presented at the hot fluid inlet and the cold fluid inlet of the valve.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 21, 2011
    Applicant: Honeywell International Inc.
    Inventor: Bruce S. Johnson
  • 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: 7905424
    Abstract: The invention provides a thermostatic mixing valve for use within a water discharge fixture. The mixing valve comprises a cover defining an interior region, a stationary lower disk residing within the interior region, and a moveable upper disk. The lower and upper disks each have a central opening and at least one peripheral groove, wherein the grooves are alignable to form a peripheral water outlet. The mixing valve also includes a spindle assembly extending through the cover region and operably connected to the upper disk to enable alignment of the grooves and formation of the water outlet. A pressure relief cavity is formed between the spindle assembly and the cover, and wherein water flows through an opening in the spindle assembly and into the relief cavity.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 15, 2011
    Assignee: Xiamen Lota Interntaional Co., Ltd.
    Inventors: Keping Li, Jusheng Xiong
  • 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
  • Patent number: 7770808
    Abstract: The invention relates to a thermostatic mixing valve in which the access path of the hot water to the mixing chamber is completely formed within a bottom base (2) and the ceramic disks (4, 5) of the valve group, the slider (8) of the thermostatic member sealingly sliding in a central seat of the upper disk (5). By having the hot water not pass through the metallic members of the valve it is possible to eliminate the problems of asymmetric thermal expansion of said metallic members when only hot water is delivered, and also to greatly reduce the problems of calcareous encrustations since the latter build up with difficulty on the ceramic material. Furthermore, the valve is manufactured with a compact and simplified structure, including a small number of pieces, with totally independent temperature and flow rate controls.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: August 10, 2010
    Inventors: Manolo Ruga, Osvaldo Ruga
  • 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
  • Patent number: 7740183
    Abstract: The disclosure relates to a thermostatic mixer, including a device for the dynamic regulation of the cold water flow which supplies the mixer. A resistance is generated to the flow of cold water supplied to the thermostatic mixer when small flows of mixed water are required, and said resistance is lifted or reduced when large flows of mixed water are required. Said operation is automatically carried out by devices for dynamic regulation of flow, whereby the flow cross-section provided for the incoming cold water is reduced when the drawn flow is reduced and a larger flow cross-section reestablished when a larger flow is required.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: June 22, 2010
    Assignee: Masco Corporation of Indiana
    Inventor: Alfons Knapp
  • Publication number: 20100123015
    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: Application
    Filed: November 18, 2008
    Publication date: May 20, 2010
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventor: Joseph W. Beagen
  • Publication number: 20100123014
    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: Application
    Filed: November 18, 2008
    Publication date: May 20, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Joseph William Beagen
  • Patent number: 7673808
    Abstract: A thermostatic cartridge regulates hot and cold fluids to be mixed, and a mixer tap one such cartridge. The cartridge includes two disks which are used to adjust the flow of hot and cold fluids and which each include a passage for hot fluid, a passage for cold fluid, and a passage for a mixture of both. The disks are movably joined to one another. One of the disks is connected in rotation to a member for controlling the flow of the mixture, while the other is fixed. In order to do without a turbulator in the cartridge, the flow section for the mixture through the disks, which is defined by stacking passages for the mixture in the joining plane of the disks, varies according to the configuration of the control member. The majority of the thermo sensitive part of a thermostatic regulation element is positioned upstream of the disk joining plane in the direction of flow of the mixture.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: March 9, 2010
    Assignee: Vernet S.A.
    Inventors: Christian Mace, Gérard Le Clanche
  • Patent number: 7669776
    Abstract: A thermostatic mixing valve for hot and cold water has two-stage inlet chambers for the hot and cold water flows respectively. The inlet chambers distribute the flows uniformly with respect to porting for admitting the flows to the mixing chamber to reduce asymmetric flow patterns and promote thorough mixing of the flows within the mixing chamber.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 2, 2010
    Assignee: Kohler Mira Limited
    Inventors: Nicholas John Beck, Sean Patrick Conway, Bruce Lewin John Hayward, Kevin Taylor Peel
  • Publication number: 20090308939
    Abstract: The invention provides a thermostatic mixing valve for use within a water discharge fixture. The mixing valve comprises a cover defining an interior region, a stationary lower disk residing within the interior region, and a moveable upper disk. The lower and upper disks each have a central opening and at least one peripheral groove, wherein the grooves are alignable to form a peripheral water outlet. The mixing valve also includes a spindle assembly extending through the cover region and operably connected to the upper disk to enable alignment of the grooves and formation of the water outlet. A pressure relief cavity is formed between the spindle assembly and the cover, and wherein water flows through an opening in the spindle assembly and into the relief cavity.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 17, 2009
    Inventors: Keping Li, Jusheng Xiong
  • Patent number: 7597270
    Abstract: A mixing valve has a valve housing, a thermostatic valve in the housing having a collar extending outward along an axis from the housing, and a stem axially shiftable in the collar. A sleeve surrounds the collar. A retaining part and interengaging screwthread formations between the part and the housing press the part against the sleeve and collar and thereby secure the collar and the sleeve on the housing against axial and angular displacement relative thereto. A handle is rotatably supported on the sleeve and threaded on the stem.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: October 6, 2009
    Assignee: Grohe Water Technology AG & Co. KG
    Inventors: Christian Frankholz, Kai Huck
  • Publication number: 20090039171
    Abstract: A thermostat device f a water heater includes a container having a thermostat chamber and a heating chamber interconnecting each other. The thermostat chamber comprises a water inlet pipe and a water outlet pipe. A temperature adjusting valve is provided in the water inlet pipe. The water inlet pipe has a first outlet interconnecting with the thermostat chamber and a second outlet interconnecting with the heating chamber. A heating device is provided in the heating chamber. An outlet is provided to interconnect the thermostat chamber and the heating chamber. A one-way valve is provided on the outlet. The one-way valve is controlled by the temperature adjusting valve to turn on or off the first outlet in order to maintain a constant temperature of the water.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 12, 2009
    Inventor: Li-Sui Huang
  • Publication number: 20080121282
    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: Application
    Filed: September 21, 2004
    Publication date: May 29, 2008
    Inventors: John William Green, Ian Moran
  • 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
  • Publication number: 20080093469
    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 20, 2004
    Publication date: April 24, 2008
    Inventor: Kevin B. Kline
  • Patent number: 7344088
    Abstract: A dual-function valve with pressure adjustment and temperature control functions comprises a valve body having a first cool water inlet, a first hot water inlet, two first mixing water outlets, a first chamber and a second chamber; the first chamber and second chamber being communicated by a second cool water channel and a second hot water channel; the second chamber being communicated to the first mixing water outlets through a water outlet channel; a pressure balance device for adjusting the water pressures of hot water and cool water; the pressure balance device being installed in the first chamber; and a temperature control device installed in the second chamber; the temperature control device adjusting the amount of water flowing into the second chamber by expansion and contraction of the mixing water of hot water and cold water; and the temperature control device being connected to the first chamber in parallel.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: March 18, 2008
    Inventor: Tzai-Jen Yang
  • Patent number: 7240850
    Abstract: A thermostatic mixing valve for hot and cold water has two-stage inlet chambers for the hot and cold water flows respectively. The inlet chambers distribute the flows uniformly with respect to porting for admitting the flows to the mixing chamber to reduce asymmetric flow patterns and promote thorough mixing of the flows within the mixing chamber.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: July 10, 2007
    Assignee: Kohler Mira Limited
    Inventors: Nicholas John Beck, Sean Patrick Conway, Bruce Lewin John Hayward, Kevin Taylor Peel
  • Patent number: 7191954
    Abstract: A thermostatic mixing valve for the mixing of a first fluid and a second fluid is disclosed. The thermostatic mixing valve is configured to produce a mixed fluid of a particular temperature from a first fluid of a temperature higher than or equal to the particular temperature and a second fluid of a temperature lower than or equal to the particular temperature. The thermostatic mixing valve includes a valve body having a first fluid inlet, a second fluid inlet, and a mixed fluid outlet. The thermostatic mixing valve also includes a valve member configured to control the rate of flow of at least the first fluid.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: March 20, 2007
    Assignee: Magarl, LLC
    Inventor: Kevin B. Kline
  • 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: 7086602
    Abstract: A valve includes a housing having an inlet opening and an inlet orifice for receiving cold and hot water, a barrel slidably received in the housing and movable to control the cold and the hot water to flow into the housing. A stem is secured to the barrel and shortenable and lengthenable by different water temperature, to control the flowing of the cold and the hot water into the housing. A conduit is secured to the housing and a spring is received in the conduit, to bias against the stem. The conduit includes a passage to allow the water to flow in and out of the conduit, and to allow the spring to be quickly shortened and lengthened by different water temperature.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: August 8, 2006
    Inventor: Tsai Chen Yang
  • Patent number: 7080790
    Abstract: A cartridge intended for insertion in a sanitary fitting contains a control disk rotated with respect to a fixed distributor disk. The cartridge contains a thermostatic valve. The disk control formed by the two disks constitutes both a quantity control and a switching device between at least two and preferably three outlets.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: July 25, 2006
    Assignee: Hansgrohe AG
    Inventor: Werner Lorch
  • Patent number: 7073725
    Abstract: A mixer tap for a shower has a body 1, with a cold water pipe connection 2, a hot water pipe connection 3 and a mixed water outlet connection 4. A flow control knob 5 and a water temperature control knob 6 are provided at the front of the tap. The tap has a flow mixer cartridge 11, which is sealed in a cavity 12 in the body. The collar has three sealing grooves 15,16,17 carrying O-rings 115,116,117. To one side, of the oblique groove 16, the collar has a cold water port 22; whilst to the other side it has a hot water port 23. These ports are in communication with the cold and hot water connections 2,3 in the body. The connections are able to be axially aligned with each other, since the ports 22,23 are offset and isolated from each other by the oblique seal.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: July 11, 2006
    Assignee: Valquest Limited
    Inventor: Jeremy Philip Swadling
  • Patent number: 6988669
    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: Grant
    Filed: March 27, 2003
    Date of Patent: January 24, 2006
    Assignee: Zipponi Rubinetterie di Nember Oscar
    Inventor: Oscar Nember
  • Patent number: 6957778
    Abstract: A sanitary mixing unit (1), in particular for wall installation, has a cartridge (6) with an outer housing (12), a flow adjustment device, a temperature adjustment device and a thermostatic device, in which the flow adjustment device has a fixed valve disc (13) and a rotatable valve disc (14) which co-acts with the fixed valve disc. A sanitary mixing unit which is of simple and economical construction and in which a functional matching of the inlet connections for hot and cold water can be matched to the locations of the hot and cold water supplies is provided by an inner housing (15), which can be coaxially rotated relative to the outer housing (15) having the thermostat device arranged in it, the rotatable valve disc (14) being fixed to the inner housing (15) and the fixed valve disc being fixed to the outer housing (12).
    Type: Grant
    Filed: September 8, 2001
    Date of Patent: October 25, 2005
    Assignee: Ideal-Standard GmbH & Co. oHG
    Inventors: Konrad Bergmann, Josef Ems
  • Patent number: RE44273
    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 baffled mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates. Also included is an improved multiple response thermostat having a fast response rate adjacent to the entrance of the mixing dome for responding quickly to the temperature of fluid entering the mixing dome. The valve assembly further includes a piston/cylinder configuration which covers and uncovers internal passageways to control the mixed fluid temperature. The internal passageways are shaped to cause a non-linear change in the mixed fluid temperature in the mixing dome as the piston moves in the cylinder.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: June 11, 2013
    Assignee: Magarl, LLC
    Inventor: Kevin B. Kline