Formed By Tubularly Shaped Heating Unit Patents (Class 219/463.1)
  • Patent number: 9345070
    Abstract: A heater is provided that includes a resistance coil assembly defining a first end portion having a first conducting pin and a second end portion having a second conducting pin, and a resistance coil disposed between the first end portion and the second end portion, and a first zone adjacent the first end portion with a constant pitch. The resistance coil further defines a continuously variable pitch extending along a length of the resistance coil from the first zone to the second end portion. The continuously variable pitch provides a variable watt density such that a predetermined temperature profile is provided along the sheath.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 17, 2016
    Assignee: Watlow Electric Manufacturing Company
    Inventors: Dennis P. Long, Rolando O. Juliano
  • Patent number: 9113501
    Abstract: A heater is provided that includes a resistance coil assembly defining a first end portion having a first conducting pin and a second end portion having a second conducting pin, and a resistance coil disposed between the first end portion and the second end portion, the resistance coil defining a plurality of different pitches between the first end portion and the second end portion. An insulating material surrounds the resistance coil assembly, and a sheath surrounds the insulating material. The plurality of different pitches provide a variable watt density such that a predetermined temperature profile is provided along the sheath.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 18, 2015
    Assignee: WATLOW ELECTRIC MANUFACTURING COMPANY
    Inventors: Dennis P. Long, Rolando O. Juliano
  • Patent number: 8309890
    Abstract: A portable pet warmer may include an outer cylinder and front and rear covers. An inner cylinder may be removably positioned within the outer cylinder. The inner cylinder remains spaced from the outer cylinder while the inner cylinder is positioned within the outer cylinder. A thermostat and a heating element may be located within the apparatus and adapted to be coupled to an external 115 volt alternating current power supply source. A mounting plate and retainer springs are used to hold the thermostat at a secure position during use while permitting easy access to the thermostat during maintenance. An internal power supply source providing a 12 volt direct current to the thermostat may further be electrically coupled to the circuit breaker.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: November 13, 2012
    Inventor: William Kelly
  • Patent number: 8212190
    Abstract: A protective handle sheath including a body adapted to wrap about the existing appliance handle, a heat-activated anti-bacterial agent impregnated within the body, and first and second hook and loop strips attached to oppositely situated first and second longitudinal edges of the body respectively. The first and second hook and loop strips generate heat when engaged with each other such that the heat is transferred through the body and thereby transforms the anti-bacterial agent from an inactive state to an active state. In this manner, the anti-bacterial agent is released out from an interior of the body and thereby adapted to directly contact an outer surface of the existing appliance handle. Conversely, the anti-bacterial agent automatically returns to an inactive state when the first hook and loop strip is separated from the second hook and loop strip. Thus, the inactive anti-bacterial agent is absorbed into the interior of the body.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 3, 2012
    Inventors: Priscilla Gibbs, Evangeline Jenkins
  • Patent number: 8115142
    Abstract: In a plate for adjusting a temperature of a substrate, a body of the plate supports the substrate. A first channel and a second channel are disposed within the body of the plate. The first channel has a first inlet and a first outlet and passes therethrough a first fluid to adjust the temperature of the substrate. The second channel has a second inlet adjacent to the first outlet and a second outlet adjacent to the first inlet and passes therethrough a second fluid to adjust the temperature of the substrate. Further, the first and second channels are disposed side by side. Thus, the temperature of the substrate may be adjusted uniformly as a whole.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: February 14, 2012
    Assignee: Semes Co, Ltd.
    Inventors: Chang-Suk Oh, Hyun-Kyung Kim
  • Patent number: 8020314
    Abstract: Methods and apparatus for drying ceramic green bodies include providing one or more ceramic green bodies in a microwave heating chamber operatively connected to a microwave source and a PLC. The total mass of the ceramic green bodies present in the microwave heating chamber is determined. Microwave energy is generated with the microwave source and transmitted from the microwave source to the microwave heating chamber. A transmitted power of the microwave energy transmitted from the microwave source to the microwave heating chamber is measured with power sensors. The reflected power of reflected microwave energy reflected back from the microwave heating chamber is also measured. The power of the microwave energy transmitted from the microwave source to the microwave heating chamber is adjusted based on the total mass of ceramic green bodies present in the microwave heating chamber, the measured transmitted power and the measured reflected power.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 20, 2011
    Assignee: Corning Incorporated
    Inventors: Jacob George, Parasuram Padmanabhan Harihara, Min Shen
  • Publication number: 20110031234
    Abstract: An electric grilling device with partial high-temperature heating function has an electric heating tube installed on the bottom of a grilling plate. The electric heating tube is bent into an intensive distribution structure shape and the bottom of the grilling plate has an embedding groove corresponding to the shape of the electric heating tube. The electric heating tube is installed in the embedding groove. The surface of the grilling plate corresponding to the intensive distribution structure of electric heating tube is defined as high-temperature region. This structure has a partial high-temperature function of the grilling plate and satisfies the different temperature requirements of grilling different food. The device utilizes the energy more efficiently to overcome the shortages of conventional electric grilling devices wherein temperature of the grilling plate is relative low. The structure of the device is simple and it is easy to operate.
    Type: Application
    Filed: April 17, 2009
    Publication date: February 10, 2011
    Applicant: TSANN KUEN(CHINA) ENTERPRISE CO., LTD
    Inventors: Hwaihsiang Kuo, Qisheng Lai
  • Publication number: 20100288749
    Abstract: The present invention relates to a grilling device, especially relates to a steam grilling device. It comprises a main body and a steam generator disposed on the main body. Compared to the conventional technique, by adding a steam generator on the main body of grilling device, the grilling device will has not only a general grilling function, but also has the steam heating function, so the heating of the grilling device will speed up, the loss of the nutrition of the food will be eliminated, and it also has effects such as degreasing and freshen, so the cooked food will be more nutritious and healthy.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 18, 2010
    Applicant: Tsann Kuen (Zhangzhou) Enterprise Co., Ltd.
    Inventors: Chunyu Wu, Jingliang Yu
  • Patent number: 7637308
    Abstract: The heating plate (1) has cavities (2), in which electrically heatable heating bodies (3) are disposed. A heat exchange medium circulated by a pump (4) transmits the heat emitted by the heating bodies (3). The heating plate is designed to obtain a uniform temperature distribution using as low a volume of heat exchange medium as possible. To this end, the cavities (2) are elongate and the heating bodies (3) are bar-shaped.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: December 29, 2009
    Assignee: Swiss Sustainable Systems AG
    Inventors: Patrick Hofer-Noser, Jürg Zahnd, Christoph Boos
  • Patent number: 7123827
    Abstract: A system and a method of operating that system are used to quickly adjust the temperature of an electric stove-heating element, such as those used with a flat-top cooking surface. A heat transfer or moderating fluid is pumped into a cooking unit containing an electric heating element. The moderating fluid is heated or cooled to an appropriate temperature, and inserted into the cooking unit under the control of a microprocessor to more quickly modify the temperature of the cooking unit. The system allows rapid temperature changes in normally sluggish electric heating elements. Also, accurate temperature adjustment is permitted through the use of microprocessor control.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 17, 2006
    Assignee: PBG02, Inc.
    Inventor: Peter Garver
  • Patent number: 6448539
    Abstract: On the one hand is provided an electric heating element (15, 31) consisting of a semiconducting ceramic (28, 32) as well as a method for its production. The semiconducting ceramic material may be porous or foamed to thus contain pores (29, 34) open outwardly. The pores are attainable by admixing filler bodies, which dissolve during sintering, to the starting material or by impreganting a textile substrate material (36) with a ceramic material. Due to the porosity of the heating element (15, 31) an increased radiant surface area is attained. On the other hand is provided an electric heating element (115, 132, 145, 150, 158, 160, 162) as well as a method for its production which consists of semiconducting ceramic and comprises a negative temperature coefficient of the electrical resistance. The temperature coefficient is negative throughout over the full operating temperature range. The material suitable for the heating element (115, 132, 145, 150, 158, 160, 162) is doped silicon carbide or TiN.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: September 10, 2002
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventors: Lutz Ose, Eugen Wilde, Willi Essig
  • Publication number: 20010019048
    Abstract: On the one hand is provided an electric heating element (15, 31) consisting of a semiconducting ceramic (28, 32) as well as a method for its production. The semiconducting ceramic material may be porous or foamed to thus contain pores (29, 34) open outwardly. The pores are attainable by admixing filler bodies, which dissolve during sintering, to the starting material or by impreganting a textile substrate material (36) with a ceramic material. Due to the porosity of the heating element (15, 31) an increased radiant surface area is attained. On the other hand is provided an electric heating element (115, 132, 145, 150, 158, 160, 162) as well as a method for its production which consists of semiconducting ceramic and comprises a negative temperature coefficient of the electrical resistance. The temperature coefficient is negative throughout over the full operating temperature range. The material suitable for the heating element (115, 132, 145, 150, 158, 160, 162) is doped silicon carbide or TiN.
    Type: Application
    Filed: February 1, 2001
    Publication date: September 6, 2001
    Inventors: Lutz Ose, Eugen Wilde, Willi Essig