U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6099319

Neuroimaging as a Marketing Tool

Neuroimaging as a means for validating whether a stimulus such as advertisement, communication, or product evokes a certain mental response such as emotion, preference, or memory, or to predict the consequences of the stimulus on later behavior such as consumption or purchasing.

Newsletter  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.

 

Class 165/251 - Enthalpy sensor


Subclass of Class 165 - Heat exchange
Definition: Subject matter and further including a sensor which senses
No. of patents: 26
Last issue date: 10/14/2008


NumberTitleIssue Date
7434413Indoor air quality and economizer control methods and controllers
Supervisory controllers, and methods, for use in a coordinated IAQ and economizer system. Various control objectives are defined and met. Some illustrative control objectives include economizer control, sequencing of economizer free cooling with compressor driven co...
10/14/2008
7170191Electricity generating and air conditioning system with water heater
A cogeneration system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, which uses the electricity generated from the generator, and includes a compressor, a directional valve, an ou...
01/30/2007
7145258Electricity generating and air conditioning system
An electricity generating and air conditioning system including an engine, a generator connected to an output shaft of the engine to generate electricity, an air conditioner, which uses the electricity generated from the generator and includes a compressor, an indoo...
12/05/2006
7051946Air re-circulation index
An index of air re-circulation in a data center having one or more racks is determined to identify the level of heated air re-circulation into cooling fluid delivered to the one or more racks. The one or more racks comprise inlets and outlets and are positioned alon...
05/30/2006
6850639Color space quantization descriptor structure
The present invention relates to a color space quantization descriptor structure for performing quantization of a color space in order to search a multimedia based on contents when multimedia feature information is color information, particularly when the multimedia...
02/01/2005
6250382Method and system for controlling a heating, ventilating, and air conditioning unit
A method and system for controlling a heating, ventilating, and air conditioning unit is provided. The system includes a conditioning unit having a heating stage, a cooling stage, and a fan. The conditioning unit operates in an active mode where one of th...
06/26/2001
6161764Enhanced economizer controller
An enhanced controller for an air conditioning system incorporating mechanical cooling equipment and an economizer, the enhanced controller including circuits for producing signals indicative of commanded changes in temperature of air admitted into the ai...
12/19/2000
5971067Air quality control system
The present invention is a system for controlling the quality of air in a building. The system includes a sensor disposed for sensing the air quality in a building. Upon a sensing of an air quality problem, the system issues a command to draw in additiona...
10/26/1999
5931376Device for air-conditioning control in an air-conditioned room having textile machines
The description relates to a device for air conditioning control in an air-conditioned room containing textile machines, especially circular spinning and spooling machines, with an air feed and an air discharge duct connecting the air-conditioned room to ...
08/03/1999
5907954Method and system for regulating mixed air in an air conditioning system of a motor vehicle
A method of and system for regulating mixed air in an air-conditioning system of a motor vehicle provides for feeding fresh air and/or recirculated air to the air conditioning system. For optimizing the energy consumption for automobile air-conditioning s...
06/01/1999
5881951Ventilator for beneath enclosed structures
An apparatus for ventilating the crawl space of a structure, comprising an exhaust fan in a housing adapted to at least partially occlude an aperture in a foundation wall of a structure and oriented to, upon receiving an appropriate stumulus, exhaust craw...
03/16/1999
5810244Ventilation systems
A control for a fan has a temperature sensor and a humidity sensor the outputs of which are supplied to a processor. The processor switches on the fan when certain temperature and humidity conditions are met. The processor turns on the fan in response to ...
09/22/1998
5791408Air handling unit including control system that prevents outside air from entering the unit through an exhaust air damper
A control system for controlling an air handling unit. The control system links the position of an exhaust air damper and a recirculation air damper so as the exhaust air damper is opened, the recirculation air damper is closed the same amount, and vice v...
08/11/1998
5762420Damper actuator controller having an enthalpy sensor input
A low-cost, accurate enthalpy sensor is described. The invention provides an on/off output which reflects the result of a comparison between the enthalpy level of a space and a predetermined setpoint. The sensor combines a signal representative of humidit...
06/09/1998
5590830Control system for air quality and temperature conditioning unit with high capacity filter bypass
An air conditioning unit is provided with a high capacity filtration system for removing pollutants from supply air, typically return air which has been recirculated from the conditioned area. A filter bypass passage and suitable flow control devices are ...
01/07/1997
5447037Economizer preferred cooling control
A method of utilizing an economizer to reduce the energy usage of a mechanical refrigeration system. The method comprises the steps of: economizing if both cooling demand and the prerequisites to economize are present; measuring economizer capacity; deter...
09/05/1995
4570448Economizer control apparatus
A control system and method for space temperature regulating equipment are disclosed in which mechanical cooling equipment is controlled as a function of sensed space temperature and a first temperature set point; and an economizer for admitting low entha...
02/18/1986
4389853Method and apparatus for controlling an air conditioning unit with multi-speed fan and economizer
An apparatus and method for operating an air conditioning unit incorporating both an economizer and a two speed fan are described. When the economizer is in operation the fan is typically operated at high speed regardless of refrigeration circuit operatio...
06/28/1983
4379484Control for a variable air volume temperature conditioning system-outdoor air economizer
A solid-state control for a variable air volume (VAV) temperature conditioning system adapted to control a plurality of refrigerant cooling stages, and in particular, to modulate an outdoor air economizer. The control includes both an outdoor ambient air ...
04/12/1983
4362026Enthalpy control
An air conditioning system in which system operation is interrupted when the space to be conditioned is unoccupied: when the outside air is of sufficiently low enthalpy the system cooler and damper controls are disabled and outside air is used for cooling...
12/07/1982
4353409Apparatus and method for controlling a variable air volume temperature conditioning system
Apparatus and method for controlling a temperature conditioning system in which a plurality of stages of temperature conditioning apparatus may be selectively energized to meet a temperature conditioning demand in a comfort zone into which the flow of tem...
10/12/1982
4347712Microprocessor discharge temperature air controller for multi-stage heating and/or cooling apparatus and outdoor air usage controller
An air conditioning system furnishing temperature conditioned air to a plurality of zones each of which has its own zone damper controlled by its own space thermostat. The system has an air discharge temperature sensor downstream of the temperature condit...
09/07/1982
4210278Apparatus for supplying conditioned air at a substantially constant temperature and humidity
An apparatus for supplying conditioned air at a substantially constant temperature and humidity. The apparatus includes a supply duct coupled to a source of supply air for carrying the supply air therethrough. A return duct is coupled to the supply duct f...
07/01/1980
4069030Energy conservation enthalpy control system and sensor therefor
An energy conservation enthalpy control system utilizes a sensing unit for sensing the wet bulb temperature of sampled air, both outside air and return air, under conditions which approximate adiabatic saturation. The unit includes a housing adapted to pa...
01/17/1978
3979922Energy conservation air conditioning system
A system is disclosed for minimizing the energy consumption of an air conditioning system by selecting the position of the outside air damper which will require the lowest total energy input into the system. The system includes sensors for generating sign...
09/14/1976
3933197Control of heating and cooling available from central sources to a multi-zone temperature controlled space
Incremental heating and cooling sources are energized and deenergized as required to meet the maximum heating and cooling demands of any of the zones in a temperature controlled space. Common references and comparators are employed for both heating and co...
01/20/1976
 
Sign InRegister
Username  
Password   
forgot password?