Quotables
"If you build a better mousetrap, you will catch better mice."
George Gobel
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8065886 | Refrigeration system energy monitoring and diagnostics A management center is configured to communicate with a refrigeration system controller for a refrigeration system at a remote location. The management center is configured to receive ambient temperature data corresponding to an ambient temperature at the remote loc... | 11/29/2011 |
| 8033123 | Air conditioner An air conditioner includes a refrigerant circuit, a refrigerant quantity calculating section, and a refrigerant quantity judging section. The refrigerant circuit includes a compressor, an outdoor heat exchanger, an indoor expansion valve, and an indoor heat exchang... | 10/11/2011 |
| 8024938 | Method for determining evaporator airflow verification A method of providing a field test protocol for determining evaporator airflow verification for existing vapor compression cycle equipment. ... | 09/27/2011 |
| 7975494 | Control system interface with display for air conditioning apparatus A user interface for a control system for an air conditioning apparatus includes a visual display and keys for scrolling menu items and entering commands to the control system. The interface is mounted in the apparatus cabinet and on a rotatable bracket to orient th... | 07/12/2011 |
| 7946121 | Air conditioner An air conditioner includes a refrigerant circuit, a refrigerant quantity calculating section, and a refrigerant quantity judging section. The refrigerant circuit is configured by the interconnection of a compressor, an outdoor heat exchanger, and an indoor heat exc... | 05/24/2011 |
| 7905099 | Predictive maintenance method and apparatus for HVACR systems A predictive maintenance method and apparatus for HVACR systems including a sensor capable of detecting the presence of a gaseous phase in the refrigerant fluid at a location wherein solely liquid phase should be present if the system is functioning properly. ... | 03/15/2011 |
| 7878006 | Compressor diagnostic and protection system and method A system and method includes a compressor operable in a refrigeration circuit and including a motor, a current sensor detecting current supplied to the motor, a discharge line temperature sensor detecting discharge line temperature of the compressor, and processing ... | 02/01/2011 |
| 7878007 | Monitoring method and system for determining airflow rate through and heat removal rate of an air-conditioning unit Monitoring method and system are provided for dynamically determining airflow rate through and heat removal rate of an air-conditioning unit, such as a computer room air-conditioning unit. The method includes: sensing inlet and outlet temperatures of fluid passing t... | 02/01/2011 |
| 7866171 | Food keeping refrigerator A food keeping refrigerator is provided. The food keeping refrigerator keeps food in refrigerating and freezing chambers and refrigerates and freezes the food through a cooling device. The food keeping refrigerator preserves the freshness and nutrition of food for a... | 01/11/2011 |
| 7861542 | Refrigerator including food product management system A refrigerator includes at least one refrigerated compartment and a food product management system. The food product management system includes a container for storing foodstuffs in the at least one refrigerated compartment. The container includes a storage zone and... | 01/04/2011 |
| 7849698 | Method and apparatus to sense and establish operation mode for an HVAC control A method for configuring a controller for an HVAC system. The method comprises providing a closed loop refrigerant system and a control system to control the closed loop refrigerant system. The control system comprises a controller, an input device, and a processor ... | 12/14/2010 |
| 7775056 | Intelligent refrigerator for storing pharmaceutical product containers Intelligent refrigerator system for storing pharmaceutical product containers, such as vials, ampules, syringes, bottles, medication tubes, blister packs and cartons, at the point of dispensing. Embodiments of the invention use product identification technology, suc... | 08/17/2010 |
| 7735328 | Apparatus and method for monitoring state information in trial run mode of multi-airconditioner An apparatus and method for monitoring state information in a trial run mode of a multi-airconditioning system in which a plurality of indoor units are controlled by only one outdoor unit is disclosed. The apparatus and method connects a dedicated controller to the ... | 06/15/2010 |
| 7673464 | Method and apparatus for temperature based placement of an item within a storage unit A method, apparatus, and computer usable program product for identifying an optimal placement of an item within a storage unit. The process identifies an item for placement in the storage unit. The process determines a preferred storage temperature range for the ide... | 03/09/2010 |
| 7650758 | Method for evaluating a non-measured operating variable in a refrigeration plant Disclosed is a method for evaluating a non-measured operating variable in a refrigeration plant, which can be derived from at least one signal which is sensed at specific points in time, enabling early recognition of errors. An error indicator is formed by means of ... | 01/26/2010 |
| 7644591 | System for remote refrigeration monitoring and diagnostics A system for monitoring and managing a refrigeration system of a remote location includes a management center in communication with a refrigeration system through a communication network. The management center receives performance information of the refrigeration sy... | 01/12/2010 |
| 7610765 | Refrigerant charge status indication method and device A method and apparatus for determining the sufficiency of the refrigerant charge in an air conditioning system by use of temperature measurements. The temperature of the liquid refrigerant leaving the condenser coil and the outdoor temperature are sensed and represe... | 11/03/2009 |
| 7552596 | Dual thermochromic liquid crystal temperature sensing for refrigerant charge indication The sufficiency of refrigerant charge in an air conditioning system is determined by a comparison of two sensed temperatures in the system, one being the liquid line temperature and the other being either the outdoor temperature or the condenser coil temperature. In... | 06/30/2009 |
| 7533536 | Method and apparatus for measuring and improving efficiency in refrigeration systems An apparatus for optimizing an efficiency of a refrigeration system, comprising means for measuring a refrigeration efficiency of an operating refrigeration system; means for altering a process variable of the refrigeration system during efficiency measurement; and ... | 05/19/2009 |
| 7503182 | Condensing unit configuration system A system and method of computer-based configuration of a condensing unit for a cooling system is provided. A list of condensing units is generated based on a selected starting path. A condensing unit is selected from the list of condensing units and reconfigured bas... | 03/17/2009 |
| 7484377 | Method and apparatus for cooling system failure detection A system and method for detecting failure of a cooling system in an alternating current machine, such as a motor and/or a generator. For example, in one embodiment energy wasting is initiated and a failure is indicated if a temperature rises by more than a selected ... | 02/03/2009 |
| 7433890 | Method and apparatus for storing and retrieving data stored within an associated piece of equipment A method and apparatus that includes a storage device for securing data about an apparatus. The data is stored in a central location and can be accessed or written based upon privileges granted by a processor. ... | 10/07/2008 |
| 7401469 | System and method for preserving food System and method for preserving food. Embodiments of the system include a food compartment to store food and a user interface configured to receive user input relating to the preservation of the food stored. The system also includes a humidity sensor configured to ... | 07/22/2008 |
| 7392661 | Energy usage estimation for climate control system An HVAC system controller which estimates the energy cost or savings incurred due to a user-instigated change in a climate control schedule. The HVAC system controller is adapted to operate a multi-zone climate control system in a building, and is especially adapted... | 07/01/2008 |
| 7389649 | Cooling system with variable duty cycle capacity control A control system for a cooling system includes a first sensor for sensing a property indicative of demand for cooling and a controller coupled to the sensor. The controller produces the variable duty cycle control signal in response to the property and causes the co... | 06/24/2008 |
| 7386985 | Detection of refrigerant charge adequacy based on multiple temperature measurements The refrigerant charge adequacy of an air conditioning system is determined by the sensing of two temperatures in the system, one being at a midpoint in a condenser coil and the other being the temperature in the liquid line of the condenser discharge, with the diff... | 06/17/2008 |
| 7380404 | Method and control for determining low refrigerant charge A refrigerant system is provided with a method and a control programmed to perform the method, in which a low charge of refrigerant is identified. The mass flow of refrigerant through the system is calculated utilizing at least two different methods. The two calcula... | 06/03/2008 |
| 7370485 | Performance testing apparatus of refrigerating cycle A performance testing apparatus includes a refrigerant pipe provided with open ends, and installed such that a condenser, an expansion device and an evaporator are sequentially aligned from one end thereof to the other end thereof. A refrigerant heating unit is inst... | 05/13/2008 |
| 7350365 | Method for controlling cogeneration system A method for controlling a cogeneration system is disclosed. The control method determines whether or not the operation load or power load of an air conditioner corresponds to a load requiring driving of a generator, controls the generator to operate when it is dete... | 04/01/2008 |
| 7353463 | Interface for multifunctional system having multiple services An interface for a multifunctional electronic device capable of performing multiple services such as copy, fax, scan, and print wherein the interface is simplified by illuminating or otherwise focusing a user's attention to only those control switches that are avail... | 04/01/2008 |
| 7349824 | Method and system for evaluating the efficiency of an air conditioning apparatus The applicant describes a system and methods of calculating the overall operating efficiency of an air conditioning chiller that evaluates efficiency of the component parts of the chiller and generates an overall efficiency based on these component efficiency values... | 03/25/2008 |
| 7342756 | Fault recognition in systems with multiple circuits A method for detecting compressor or system degradation or malfunction in a multiple circuit compressor system includes the steps of providing a multiple circuit compressor system including at least a first circuit and a second circuit; and comparing a first value c... | 03/11/2008 |
| 7337619 | Method and system for assessing a refrigerant charge level in a vehicle air conditioning system A method and system for assessing a level of refrigerant in a vehicle air conditioning system. A refrigerant charge value is determined as a function of ambient air temperature, ambient air humidity, conditioned air temperature, and compressor cycling signals. The r... | 03/04/2008 |
| 7340509 | Reconfigurable appliance control system A reconfigurable appliance control system includes a dedicated appliance control (DAC) for controlling operation of an appliance. The system further includes an appliance communication control (ACC) for communicating with at least one appliance. The system includes ... | 03/04/2008 |
| 7322209 | Refrigerator A refrigerator, and more particularly, a refrigerator equipped with a machinery chamber door, which is provided to open or close a machinery chamber formed at an upper portion of a body of the refrigerator. The refrigerator includes a body with a storage chamber, an... | 01/29/2008 |
| 7319922 | Protective device and method for installation of a protective function in a protective device A protective device for an electrical power distribution network has: means for processing measured values from measurement appliances for the power distribution network, means for initiating switching commands by means of primary appliances for the power distributi... | 01/15/2008 |
| 7319407 | Display unit for refrigerator A display unit for a refrigerator is provided. The display having a TV receiving function is installed at a front surface of a refrigerator door. A mounting panel with a plurality of speaker holes formed therein is also installed around an edge of the display. A spe... | 01/15/2008 |
| 7310957 | Ice machine with remote monitoring A commercial ice making machine having an electronic monitoring device which captures the operating status and production history of the ice machine. The ice production history of the machine is communicated via telephony and/or the Internet on a regular recurring b... | 12/25/2007 |
| 7308384 | Ordered record of system-wide fault in an HVAC system An HVAC system includes a central controller which communicates with a multiple of HVAC components over a digital communication bus. The central controller maintains an ordered fault list that includes the source of a fault, a description of the fault, the last occu... | 12/11/2007 |
| 7296459 | Avatar refrigerator, and method for sensing contamination of the same The present invention discloses a refrigerator for storing foods at a low temperature. An avatar refrigerator and a method for sensing contamination of the same receive measurement values from various sensors installed around the refrigerator in a contamination sens... | 11/20/2007 |
