Patents Examined by Harry B. Tanner
  • Patent number: 7047756
    Abstract: This disclosure describes a method for operating a cooling device in a thermal system that is responsive to an operating parameter and dynamically changes the operating parameter to achieve a maximum operating temperature for any system regardless of the subsystem variation.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: May 23, 2006
    Assignee: Analog Devices, Inc.
    Inventors: Robin Laurie Getz, David Edward Hanrahan
  • Patent number: 7047754
    Abstract: The present invention relates to a heater controller and a heater control method of a refrigerator, and more particularly, to a heater controller and a heater control method of a refrigerator, which control a heater mounted in a refrigerator dispenser. In the present invention, a dispenser of a refrigerator door is provided with a water tank. In order to prevent water in the water tank from being frozen over, the heater is mounted at an outside of the water tank. In addition, by measuring an outer surface temperature of the water tank and then recognizing a water temperature in the water tank based on the outer surface temperature of the water tank, the heater is controlled to be turned on/off based on a range of the water temperature in the water tank. Furthermore, in the present invention, an ambient temperature at a position of the refrigerator is measured, and then, the heater outputs heat energy according to a range of the ambient temperature.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: May 23, 2006
    Assignee: LG Electronics Inc.
    Inventors: Si-Yeon An, Seong-Ook Kim, Oh-Chul Kwon, Bum-Sik Lee, Dong-Yeol Yoo
  • Patent number: 7043932
    Abstract: A temperature-controlled air cargo container transport dolly for use in transporting perishable cargo from an air cargo storage area to an aircraft. In a preferred embodiment, the air cargo container transport dolly comprises a conventional air cargo trailer having a housing structure mounted thereupon. The housing structure defines a cargo-holding interior within which perishable cargo, as stored within a conventional air cargo container, can be securely stored. To facilitate the ability to move such perishable cargo, rollers may be integrated into the flooring of the housing. A temperature control unit is further integrated within such housing to provide a temperature-controlled environment within the housing. The temperature-control unit will preferably be powered through a variety of means, whether from electricity from an external source, a battery, or by electric generator means, such as a diesel electric generator.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: May 16, 2006
    Assignee: Tofco Industrial, Inc.
    Inventor: David Tofflemire
  • Patent number: 7036559
    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: Grant
    Filed: July 8, 2003
    Date of Patent: May 2, 2006
    Inventor: Daniel Stanimirovic
  • Patent number: 7036332
    Abstract: Heat exchanger arrangement for a refrigerator apparatus, which evaporator comprises an evaporator tube (2) for conducting a refrigerating medium; a heat exchanger (5, 11) with at least one heat conducting member (7, 11), which is arranged in heat conducting contact with a portion of the evaporator tube and; a heat generating element (10) for defrosting the heat exchanger, which element is arranged in heat conducting contact with the heat conducting member. For optimizing defrosting, the heat-conducting member (7, 11) is arranged essentially between the heat generating element (10) and the evaporator tube (2).
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: May 2, 2006
    Assignee: Dometic Sweden AB
    Inventors: Anders Bengt Ingemar Hallin, Carl Lindhagen, Fredrik Reithe, Anton Lundqvist
  • Patent number: 7036329
    Abstract: In order to reduce refrigerant leakage from an automotive air conditioning system, the leakage paths are kept sealed by automatically reducing the output of a variable displacement compressor (12) after initial operation of the engine for a predetermined number of five minutes, and then only for a predetermined number of ten seconds, that is, so long as there has been an air conditioning on signal by the operator. After the reduction in output for ten seconds, the output of the compressor (12) is returned to full output for a predetermined number of two air-conditioning minutes, which is then followed by another ten seconds of reduced output.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: May 2, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: S. Umair Ahmed, Edward I. Wolfe, IV, Prasad S. Kadle, William J. Kumpf
  • Patent number: 7032402
    Abstract: A system for protecting air-conditioning units from damage caused by hail and other inclement weather conditions is described. The system includes one or more protective panels, each having a frame and a protective screen. The panels are attached to the housing of an air-conditioning unit using a variety of brackets and clamps. The system protects air-conditioning units without significantly restricting the air flow around the units and additionally shades the units to enhance their performance by lowering their temperature.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: April 25, 2006
    Inventor: Paul Randall Braswell
  • Patent number: 7028499
    Abstract: A refrigerator with an evaporator having a refrigerant pipe, and a defrosting heater placed below the evaporator and defrosting the evaporator, wherein the refrigerant pipe includes a main refrigerant pipe evaporating a refrigerant, and a heat-transfer refrigerant pipe extended from a lower part of the main refrigerant pipe so as to exchange heat, and disposed adjacent to the defrosting heater. Therefore, the refrigerator can defrost an evaporator quickly and uniformly.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: April 18, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-hyoun Kwon, Jae-seung Lee, Chang-nyeun Kim
  • Patent number: 7024869
    Abstract: An apparatus for dispensing an odorant to a hydrogen gas includes at least one container, each container having an interior volume. At least one odorant material is disposed in the interior volume of a first container, the odorant material having at least one detectable odor. At least one hydrogen storage material is disposed in the interior volume of the first container or the interior volume of a second container.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 11, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Pushpinder Singh Puri, Guido Peter Pez
  • Patent number: 7021552
    Abstract: The invention relates to a method for controlling the temperature in a controlled-climate chamber, wherein: an organism, such as a plant or an animal, is placed in the controlled-climate chamber; the temperature in the controlled-climate chamber is kept essentially constant at a specific value (T1); at least one growth characteristic (G) of the organism, such as, for example, the CO2 production, is measured; the temperature in the controlled-climate chamber is raised or lowered by a specific value (?T); the magnitude of the growth characteristic is measured again; the variation in the measured value of the growth characteristic is determined (?G); and the temperature in the controlled-climate chamber is adjusted, depending on the variation in the measured value of the growth characteristic (?G) that has been determined.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: April 4, 2006
    Assignee: HatchTech Group B.V.
    Inventor: Tjitze Meter
  • Patent number: 7017359
    Abstract: A refrigerator having a cooling compartment provides a memory storing data about a user and data on food items stored in the cooling compartment; a user recognition device recognizing a present user; a controller reading the food item data corresponding to the user data relevant to the present user recognized by the user recognition device; and a display displaying the food item data read by controller. Thus, the refrigerator may be provided, which displays food item information appropriate to a user and reflecting the user's taste, physical constitution and health condition.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: March 28, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-nyeun Kim, Gun-ho Hong
  • Patent number: 7017360
    Abstract: A method for controlling cycling of an air conditioning compressor coupled to an internal combustion engine interrupts normal cycling based on operation conditions. In addition, normal engaged and disengaged cycling durations are adaptively estimated in real-time. The method of the present invention achieves improved fuel economy and improved drive feel. As an example, improved fuel economy is achieved by engaging the compressor during braking or when the engine is being driven by the vehicle. As another example, improved drive feel is achieved by engaging the compressor during transient conditions when drive feel is unaffected.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: March 28, 2006
    Assignee: Ford Global Technologies, LLC
    Inventors: Allan Joseph Kotwicki, George Blaha, Gerhard A. Dage, John David Russell, Michael John Cullen
  • Patent number: 7017827
    Abstract: A control is functional to perform a method of determining a maximum desired airflow for each of a plurality of zones in a multi-zone HVAC system, and an expected airflow to those zones. In part, these determinations are based upon an algorithm that calculates the relative size of the ducts leading to each of the zones. The expected and maximum airflows are compared for each of the zones, and if any zone has an expected airflow that exceeds its maximum airflow, certain steps are taken to reduce airflow to that zone.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: March 28, 2006
    Assignee: Carrier Corporation
    Inventors: Rajendra K. Shah, William F. VanOstrand, Laurie L. Werbowsky
  • Patent number: 7013661
    Abstract: A method for controlling refrigeration including a simulated product temperature sensor operable to measure a simulated product temperature from a refrigeration case and a transceiver in communication with said simulated product temperature sensor and operable to wirelessly transmit data. A receiver receives the wirelessly transmitted data and a controller in communication with the receiver controls the refrigeration system based upon the wirelessly transmitted data from the refrigeration case.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: March 21, 2006
    Assignee: Computer Process Controls, Inc.
    Inventors: William Gatling, Herb Rippe, Jim Chabucos, Abtar Singh
  • Patent number: 7007490
    Abstract: A refrigerator, in which air blast fans in storage chambers are controlled so as to reduce a power consumption rate, and a control method of the refrigerator. The control method includes the steps of (a) determining whether or not a plurality of air blast devices, respectively connected to a plurality of storage chambers, and a compressor are respectively in starting conditions; (b) in case that it is determined that at least two air blast devices and the compressor are in the starting conditions, turning a part of the at least two air blast devices in the starting condition and the compressor on; and (c) turning all of the air blast devices in the starting condition on after a designated time from the turning-on of the air blast device elapses.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: March 7, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Wook Jeong, Jung Yeob Kim
  • Patent number: 7004401
    Abstract: In one embodiment, the invention is directed toward a networked grain aeration control system. For example, the system can provide centralized monitoring of the aeration of a number of grain storage facilities, thereby improving the management of stored grain. The networked grain aeration control system can allow the custodian of the system to offer an aeration service. Farmers, or other individuals, cooperatives, or companies can purchase the aeration service at a cost proportionate to the amount of stored grain to be aerated and the duration of storage. In this manner, the purchaser of the aeration service can avoid relatively high fixed costs that can be associated with various aeration hardware.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: February 28, 2006
    Assignee: Cerys Systems, Inc.
    Inventor: Daniel Kallestad
  • Patent number: 7000422
    Abstract: A refrigeration system including a compressor, condenser, valve, and evaporator in fluid communication; a system controller operable to control one or more aspects of the refrigeration system, and a subsystem controller in communication with the system controller. The subsystem controller is operable to control one of the compressor, condenser, valve, and evaporator. A method of operating the refrigeration system includes communicating a code from the subsystem controller to the system controller, obtaining information at the system controller having a relation to the code; and communicating at least a portion of the obtained information from the system controller to the subsystem controller.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: February 21, 2006
    Assignee: Hussmann Corporation
    Inventors: Norman E. Street, Ted W Sunderland
  • Patent number: 6996997
    Abstract: Methods of diagnosing a temperature control unit and methods of performing a diagnostic check on a temperature control unit. The methods generally include monitoring at least one function of the temperature control unit, storing information relating to the at least one monitored function, determining from the information relating to the at least one monitored function whether the unit has a malfunction. Some methods generally include setting a flag to one of a first setting and a second setting, the flag being set to the first setting if the unit has no malfunction and the flag being set to the second setting if the unit has at least one malfunction, and enabling the diagnostic check when the flag is set to the first setting.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: February 14, 2006
    Assignee: Thermo King Corporation
    Inventors: James W. Wiff, Jay. L. Hanson, Bill A. Carlson
  • Patent number: 6997001
    Abstract: The object of the present invention is to provide a method of operating a refrigeration cycle which is capable of preventing oil from staying in an evaporator and ensures high coefficient of performance as well as sufficient circulation of oil. An electronic expansion valve is controlled such that during normal operation, refrigerant is always in a superheated state at the outlet of an evaporator, and the refrigerant is periodically forced to have negative superheat for a predetermined time by a superheat control device. Thus, during normal operation, the refrigerant sucked into a variable displacement compressor always has superheat, whereby the refrigeration cycle can operate with high coefficient of performance and an engine driving the variable displacement compressor can be operated at high fuel efficiency. Also, the refrigerant is temporarily controlled so as to have negative superheat.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: February 14, 2006
    Assignee: TGK Co., Ltd.
    Inventor: Hisatoshi Hirota
  • Patent number: 6996999
    Abstract: Methods and apparatus for more effectively managing humidity of an inside space using an air conditioner are provided. In one illustrative embodiment, the system determines whether the humidity level in an inside space is above a predetermined humidity threshold, and if so, changes a control parameter such as a minimum “on” time for the air conditioner. If the humidity level in the inside space is not above the predetermined humidity threshold, the control parameter is not changed, or changed less than when the humidity level is above the predetermined humidity threshold. Rather than changing (i.e. increasing) the minimum “on” time, it is contemplated that any control parameter that increases the “on” time of the air conditioner may be used including, for example, changing (i.e. decreasing) the maximum cycle rate allowed for the air conditioner.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: February 14, 2006
    Assignee: Honeywell International Inc.
    Inventor: Paul C. Wacker