Heat Shield Patents (Class 236/99D)
  • Patent number: 6145752
    Abstract: This invention generally relates to a thermostat system for use in thermal regulation of an environment.This invention involves thermal regulation systems for controlling the temperature of an environment and the thermostat systems used in thermal regulation systems. The invention provides a pair of contacts and a creep action bi-metal thermostat, electrically connected to the pair of contacts. The bi-metal thermostat provides an electrical connection between the pair of contacts when the thermostat is exposed to temperatures within one defined range, and the thermostat interrupts any electrical connection between the pair of contacts when the thermostat is exposed to temperatures that are outside of the defined range. A capacitor, is electrically connected between the contacts, in parallel with the creep action bi-metal thermostat to prevent heating caused by electrical arcing within the bi-metal thermostat from altering the performance of the bi-metal thermostat.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: November 14, 2000
    Inventor: Ronald E. Jackson
  • Patent number: 5901562
    Abstract: A mechanism for controlling the temperature in and the flow of air between freezer and fresh food compartments in a refrigerator is constituted by a pre-assembled control unit including a housing within which is mounted fresh food and freezer compartment control knobs, a thermostatic controller, a temperature sensing capillary tube, a defrost timer, an automatic damper unit for adjusting the opening of an air passageway formed in the housing, and lighting assemblies. The air passageway formed in the housing is adapted to be aligned with an opening leading from the freezer compartment to the fresh food compartment. The capillary tube has one end attached to the thermostatic controller and another end positioned in the air passageway such that the thermostatic controller receives temperature signals from the capillary tube that are associated with not only the temperature of the freezer compartment, but also the temperature of the fresh food compartment.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: May 11, 1999
    Assignee: Maytag Corporation
    Inventors: Scott T. Tunzi, Bobbie J. Gilman
  • Patent number: 4507935
    Abstract: In an air conditioning system for automotive vehicles, an overheat detecting device is provided for detection of overheating of refrigerant circulated in the air conditioning system. The overheat detecting device is arranged in an outlet pipe connected to the evaporator of the air conditioning system, and accommodated within the evaporator case. The interior of the outlet pipe forms a detecting space for detection of overheating of refrigerant, and the overheat detecting device has a thermo-sensitive means arranged in the detecting space which is interior of the outlet pipe.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: April 2, 1985
    Assignee: Diesel Kiki Co., Ltd.
    Inventors: Michimasa Madarame, Kaichi Ueda
  • Patent number: 4502461
    Abstract: A temperature control means for a cooking griddle wherein a tubular thermostat is clamped to the bottom of the griddle plate, shielded from direct engagement by the heating medium and having a predetermined portion of the temperature sensing bulb of the thermostat directly exposed to the heating medium for cooperation with the actuating fluid in the thermostat tube so as to operate the on-off switch of the heating medium within a temperature range of about 5 degrees F.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: March 5, 1985
    Assignee: Keating of Chicago, Inc.
    Inventor: Richard T. Keating
  • Patent number: 4476067
    Abstract: A device for controlling the operation of a carburetor comprising a wax valve fitted into a bore formed in the device housing. A wax valve holder is fitted into the bore so as to surround the temperature sensitive portion of the wax valve. A cooling water passage is formed in the bore so as to surround the wax valve holder. A heat insulating space is formed between the outer wall of the temperature sensitive portion and the inner wall of the wax valve holder.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 9, 1984
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisan Industry Co., Ltd.
    Inventors: Takashi Katou, Masaharu Hayakawa, Hidenori Hirosawa
  • Patent number: 4216902
    Abstract: A thermostatically controlled valve for heated fluid flowing through a conduit has a valve seat and cooperating valve mechanism to permit the flow of fluid through the seat; a housing, open at one end, is secured to the conduit at the other end over the valve mechanism. A sensor, secured in the open end of the housing, is responsive to change in ambient temperature of the air above the housing and the sensor operates a plunger which acts on the valve mechanism to regulate the flow through the said seat. Thermal shielding means are provided in the housing between the sensor and the valve mechanism to prevent heat from the latter affecting the sensor and vents are provided in the housing below the thermal shielding means to allow air heated by the valve mechanism to escape to atmosphere.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: August 12, 1980
    Assignee: Braukmann Armaturen AG
    Inventor: Heinz W. Braukmann
  • Patent number: 4157158
    Abstract: A temperature responsive valve assembly includes a body having an inlet port and first and second outlet ports, a thermostatic bimetal disk disposed within the body and responsive to a variation in temperature to change the curvature thereof from a first position to a second position, a first seat portion disposed within a first passage between the inlet port and the first outlet port, a second seat portion disposed within a second passage between the inlet port and the second outlet port, a valve member arranged between the first and second seat portions and engageable with both seat portions, a connecting means following the movement of the bimetal disk to thereby actuate the valve members between a first position wherein the valve member engages with the first seat portion to control the first passage and a second positon wherein the valve member engages with the second seat portion to control the second passage, a seat member having the second seat portion thereon and being adjustably threaded with the bo
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: June 5, 1979
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kazuhiko Kitamura, Masami Inada
  • Patent number: 3995441
    Abstract: A beverage dispensing system has a water line to be connected to a source of water, a refrigeration evaporator line extending through and along a length of the water line, and a thermostatic control that has a sensing element extending along refrigerated portions of the water line.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: December 7, 1976
    Assignee: The Cornelius Company
    Inventor: John R. McMillin
  • Patent number: 3979923
    Abstract: A preassembled unit for subcooling the refrigerant in existing air conditioning and refrigeration systems to a temperature less than its saturated vaporization temperature. The unit is installable in existing refrigeration systems and has the capability to increase the efficiency of such systems. A coaxial tube heat exchanger includes a refrigerant tube to be connected between the system condenser and expansion valve, and a cooling medium tube through which a flow of cooling water is provided. A thermostatically-operated control valve is utilized to adjust the flow of water in response to the refrigerant outlet temperature. The control valve ensures that only the minimum quantity of water necessary to reduce the refrigerant temperature to a selected value is used. The heat exchanger and control valve are completely enclosed in a block of plastic foam to prevent a high ambient temperature from affecting these elements.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: September 14, 1976
    Inventor: John H. Jennings