Patents Assigned to Nippon Thermostat Co., Ltd.
  • Patent number: 9052030
    Abstract: A thermostat device has a thermo element assembly (10) configured by a piston (3), a thermal expansion unit that changes volume with a change in temperature, to reciprocate a cylinder container (4) with respect to the piston, and a heating element (H) that is provided in a casing of the piston and heats the thermal expansion unit (W) when supplied with current. An assembling hole (11) is provided in the device housing to hold an outer end of the thermo element assembly by causing the outer end to pass therethrough toward the outside of the device. A piston guide (13) is provided at a section on the upper end side of the piston configuring the thermo element assembly. An outer end of the piston guide is integrally joined to the housing side while being inserted from the inside of the device housing (2) into the assembling hole to pass therethrough.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: June 9, 2015
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Hiroshi Suda, Kiyoshi Kadoshima
  • Patent number: 8893979
    Abstract: A thermo-element having incorporated in a case a heat expansion body which expands and contracts according to a change in temperature includes: a piston disposed along the axis direction within the case, protruding outward from the opening on one end side of the case, and advancing and receding as the hear expansion body expands and contracts; a guide member disposed within the case and which slidably holds the piston; and a first valve element fitted to an outside portion of the case, in the side of the case, and opening and closing a fluid flow path. A fit-in section of the first valve element and insertion sections of the guide member inserted within the case are displaced from each other in the axis direction and the radial direction of the case.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 25, 2014
    Assignee: Nippon Thermostat Co., Ltd.
    Inventor: Fumito Kusakabe
  • 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: 8820655
    Abstract: Provided is a temperature sensitive actuator attaching structure wherein the ease of attachment is improved. A heat generating element (51) generates heat by energizing a temperature sensitive actuator (2) via conducting terminals (41, 42). The generated heat expands a wax (W) to project a piston (21), and an elastic member (23) biases the piston (21) in a direction opposite to the projecting direction. In order to attach the temperature sensitive actuator (2) to an attachment portion (11) of an object member (1), fixing protrusions (41a) are provided in the conducting terminal (41) of the temperature sensitive actuator (2), and receiving portions (14) which can receive the fixing protrusions (41a) in a direction perpendicular to the axis of the piston (21) are provided in the attachment portion (11). The temperature sensitive actuator (2) is attached to the object member (1) by inserting the fixing protrusions (41a) into the receiving portions (14).
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: September 2, 2014
    Assignees: Nippon Thermostat Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Tetsuya Arai, Kazuyoshi Iizuka
  • Patent number: 8815176
    Abstract: Provided is a temperature sensitive indicator, which can be held in a desired state and is not affected by temperature of a finger at the time of an operation of the temperature sensitive indicator. The temperature sensitive indicator includes: a member base (13) including an upper base member (11) and a lower base member (12); and a label component (21) sandwiched and held between the upper base member and the lower base member of the member base under a state in which a pulled-out portion on one end side of the label component is protruded outward.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: August 26, 2014
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Hiroshi Suda, Susumu Mikami, Tetsuya Nishimura
  • Publication number: 20140216027
    Abstract: Provided is a heat storage device which can stably store heat by storing heat within a fixed temperature range. A heat storage device (10) of the present invention is characterized in being provided with a heat resistant frame (11), which is filled with one kind of alloy or mixed salt having a predetermined eutectic temperature, alternatively, a heat resistant frame (11), which is filled with two or more kinds of alloys or mixed salts having different eutectic temperatures, by having the alloys or the mixed salts adjacent to each other in the order of eutectic temperature levels with a partitioning wall (11a) therebetween.
    Type: Application
    Filed: March 30, 2012
    Publication date: August 7, 2014
    Applicants: Tokyo University of Science Educational Foundation Administration Organization, SWCC Showa Cable Systems Co., Ltd., Nippon Thermostat Co., Ltd., Itoh Kikoh Co., Ltd.
    Inventors: Tsutomu Iida, Kuniaki Mizuno, Yukio Takizawa, Tatsuya Deguchi, Kazunori Sawada, Yohike Mito, Takashi Nemoto, Masahiro Minowa
  • 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: 8707887
    Abstract: A temperature sensing indicator provided with a capsule having a temperature sensing material contained that can be used without being affected by the temperature of fingers and allows the capsule to be easily broken. The temperature sensing indicator irreversibly indicates that a sensed temperature is not lower than a predetermined temperature or not higher than the predetermined temperature when a capsule containing a temperature sensing material is broken. The temperature sensing indicator has a body base made of a plastic material having a recess section formed therein; the capsule contained in the recess and containing the temperature sensing material, an absorbing member mounted on the upper part of the recess, and in which a through hole that exposes a portion of the upper surface of the absorbing member is formed. Pressing the display label crushes the recess in the body base to break the capsule.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: April 29, 2014
    Assignee: Nippon Thermostat Co., Ltd.
    Inventors: Hiroshi Suda, Tetsuya Nishimura
  • Patent number: 8646417
    Abstract: A cooling apparatus for an internal combustion engine is provided in which a temperature detecting tip of a temperature sensor is arranged in a position where flow of a coolant is smooth, to thereby improve a measurement accuracy of coolant temperature. A thermoelement assembly 13 and the temperature sensor 17 which detects the temperature of the coolant are accommodated in the housing 11 arranged at a return channel of the coolant which flows from a radiator to a coolant inflow part of the engine. The temperature detecting tip 17a of the temperature sensor 17 is arranged to face the inside of a circulation hole 12 of the housing 11 between a valve body 23 which constitutes the thermoelement assembly and a frame support part formed in the circulation hole 12 of the housing 11.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 11, 2014
    Assignees: Nippon Thermostat Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuji Watanabe, Fujio Inoue
  • Patent number: 8544426
    Abstract: A coolant passage apparatus 10 is formed by joining a plurality of resin moldings 31 and 32 which are each individually molded. A pair of coolant receiving pipes 11 and 12 for respectively receiving a coolant from a pair of engine heads and riser pipes 17 and 18 adjoining the coolant receiving pipes are provided, a central passage 19 is formed between the riser pipes, and a communicating tube 21 which is towards a radiator is formed to communicate with the central passage. Assuming that a line passing through the center of the central passage 19 is (indicated by) A and lines passing through the centers of the above-mentioned riser pipes are (indicated by) B respectively, each of the lines B is outwardly and obtusely angled with respect to the line A, and the riser pipes are respectively molded on both sides of the central passage to incline outwardly.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 1, 2013
    Assignees: Nippon Thermostat Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuji Watanabe, Fujio Inoue
  • Publication number: 20130180477
    Abstract: [Problem] To obtain a thermostat device with which it is possible to dull the thermosensitivity of a thermo-element thermosensitive component to coolant water and better control the opening and closing of a main valve at a selected timing by means of an electrical heater. [Solution] A thermostat device (1) comprises: a piston (3); a cylinder container (4) which operates forward and reverse with respect to the piston and further comprises a flange valve which opens and closes a main flow path of coolant water; a thermal expansion body (W) which causes the cylinder container to operate forward and reverse upon the piston with a volumetric change commensurate with a temperature change within said cylinder container; and a thermo-element assembly body (10) which is disposed within the piston and further comprises a heat emitting element (H) which applies heat to the thermal expansion body by a supply of electricity.
    Type: Application
    Filed: September 12, 2011
    Publication date: July 18, 2013
    Applicant: NIPPON THERMOSTAT CO., LTD.
    Inventors: Tadao Nakajima, Toshitaka Suzuki
  • Publication number: 20130042929
    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: Application
    Filed: October 22, 2012
    Publication date: February 21, 2013
    Applicants: NIPPON THERMOSTAT CO., LTD., TOTO LTD.
    Inventors: TOTO LTD., NIPPON THERMOSTAT CO., LTD.
  • 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
  • Patent number: 8342418
    Abstract: The present invention is to provide a thermo-valve which can be operated with no unnecessary work to fill fluid easily and without fail into a circuit having the fluid flow therethrough at the time of a high temperature range.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: January 1, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Thermostat Co., Ltd.
    Inventors: Ryuji Kanzaka, Tadasu Tomohiro, Yoshinori Sato
  • Publication number: 20120319028
    Abstract: Provided is a fluid control valve assembly which reduces pressure loss as much as possible in a fluid passage line including a fluid control valve, thereby mini-minimizing the pressure for a fluid to pass therethrough and thus ensuring a required amount of flow without upsizing the overall assembly. The fluid control valve assembly is adapted such that an upstream pipe (17) forming an upstream fluid passageway and tilted at a predetermined angle relative to a valve axis (L) is provided to face an upstream chamber (11). The upstream chamber is formed upstream of a valve portion (12) which has a valve seat (13) and a valve body (14) in a valve housing (10) and which can open and close the fluid passageway. The wall surface of the upstream chamber is integrated with a swelling (20), which is projected in the chamber to thereby rectify and guide the fluid flowing therein through the upstream pipe so that the fluid smoothly flows to the valve portion.
    Type: Application
    Filed: February 3, 2011
    Publication date: December 20, 2012
    Applicant: NIPPON THERMOSTAT CO., LTD.
    Inventor: Fumito Kusakabe
  • Publication number: 20120312884
    Abstract: In order to configure a thermostat device to be attached to a vehicle (engine or the like) by a simple structure with a required minimum number of components and improve the assembly performance thereof, the thermostat device is provided with a casing (2) which comprises a first coolant flow path (2B), a second coolant path (2D), and a thermostat accommodating part communicating with the first and second coolant flow paths, a cover (3) which comprises a third coolant flow path (2C) communicating with the thermostat accommodating part and covers the thermostat accommodating part, and a thermostat (10) which comprises a thermoelement (10h) that moves forward and backward according to the change of the temperature of a coolant flowing through the thermostat accommodating part. The thermostat device is provided with a temperature sensor (20) which is provided to face the inside of the thermostat accommodating part and detects the temperature of the coolant.
    Type: Application
    Filed: November 22, 2010
    Publication date: December 13, 2012
    Applicant: NIPPON THERMOSTAT CO., LTD.
    Inventor: Noriyasu Yajima
  • Publication number: 20120097750
    Abstract: A thermo-element for a thermostat device includes an element assembly and is configured in such a manner that the thermo-element has a simple structure which allows the thermo-element to be easily assembled and to be small-sized and lightweight and that the thermo-element has excellent properties of durability, wear resistance, etc.
    Type: Application
    Filed: February 17, 2010
    Publication date: April 26, 2012
    Applicant: NIPPON THERMOSTAT CO., LTD.
    Inventor: Fumito Kusakabe
  • Publication number: 20120062354
    Abstract: Disclosed is a temperature-sensitive actuator which is configured in such a manner that heat from a PTC heater for the temperature-sensitive part of a thermoelement can be received appropriately and reliably in a required state. Specifically disclosed is a temperature-sensitive actuator (10) which is configured to sense the temperature although a piston (14) is operated forcibly by generating heat from a PTC heater (20) and warming the temperature-sensitive part (13) of a wax thermoelement, wherein a contact member (40) is interposed between the temperature-sensitive part of a thermoelement and the PTC heater. Consequently, variation in the amount of heat which is received at the temperature-sensitive part of a thermoelement from the PTC heater is limited, and the stabilized output (lift) of the thermoelement can be ensured.
    Type: Application
    Filed: March 23, 2010
    Publication date: March 15, 2012
    Applicant: NIPPON THERMOSTAT CO., LTD.
    Inventors: Kazuyoshi Izuka, Hidetoshi Sasaki, Shinya Toyonaga, Manami Furukawa
  • Publication number: 20120060362
    Abstract: Provided is a temperature sensitive actuator attaching structure wherein the ease of attachment is improved. A heat generating element (51) generates heat by energizing a temperature sensitive actuator (2) via conducting terminals (41, 42). The generated heat expands a wax (W) to project a piston (21), and an elastic member (23) biases the piston (21) in a direction opposite to the projecting direction. In order to attach the temperature sensitive actuator (2) to an attachment portion (11) of an object member (1), fixing protrusions (41a) are provided in the conducting terminal (41) of the temperature sensitive actuator (2), and receiving portions (14) which can receive the fixing protrusions (41a) in a direction perpendicular to the axis of the piston (21) are provided in the attachment portion (11). The temperature sensitive actuator (2) is attached to the object member (1) by inserting the fixing protrusions (41a) into the receiving portions (14).
    Type: Application
    Filed: February 15, 2010
    Publication date: March 15, 2012
    Applicants: HONDA MOTOR CO., LTD., NIPPON THERMOSTAT CO., LTD.
    Inventors: Tetsuya Arai, Kazuyoshi Iizuka