Patents
Patents for G05D 27 - Simultaneous control of variables covered by two or more of main groups (2,795)
06/1998
06/09/1998US5763858 Automatically controlled ice and snow melting system including a two-wire remote control
04/1998
04/14/1998US5738276 Valve
04/14/1998US5737934 For modifying the temperature/moisture content of air within an enclosure
03/1998
03/24/1998US5729989 For a car air conditioner
03/18/1998CN1176368A Air current control apparatus for air conditioner and methods
03/10/1998US5725425 Sensor system for controlling ventilation systems in vehicles
02/1998
02/25/1998CN1174345A Two-dimensional light-movable platform driven precisely by piezoelectric supersonic miniature motor
01/1998
01/29/1998WO1998003275A1 System and method for controlling airflow in a laboratory or fume hood
01/08/1998WO1998000676A1 Environmentally enhanced enclosure for managing cmp contamination
12/1997
12/23/1997CA2156685C Temperature and pressure control means for water bed
12/18/1997WO1997048030A1 Thermal comfort controller
11/1997
11/12/1997CN2267473Y Pneumatic differential pressure/pressure control device
10/1997
10/23/1997WO1997039396A1 Self-contained temperature and pressure operated pinch valve
09/1997
09/16/1997US5666793 For an operator to operate a combine to optimize harvesting output
09/16/1997CA2171556C Hydroponic control apparatus
09/03/1997EP0793158A1 Method and device for controlling a blind
07/1997
07/30/1997EP0786712A2 Method and device for controlling air temperature and humidity in an air conditioning system
07/24/1997WO1997026525A1 Method for monitoring biological activity in fluids
07/23/1997EP0785363A2 Current regulator
05/1997
05/22/1997DE19543400A1 Sauna climate control method
04/1997
04/30/1997DE19638152A1 Combined volume-flow and differential pressure regulating valve unit
04/29/1997US5624535 Production system of electrolyzed water
04/03/1997WO1997011663A1 Controller for a patient warming device
03/1997
03/19/1997EP0699317B1 Indoor climate controller
02/1997
02/19/1997CN1143420A Sensor arrangement for controlling vehicle ventilation system
02/12/1997EP0757632A1 Sensor arrangement for controlling vehicle ventilation systems
01/1997
01/21/1997US5595105 Apparatus for automatically cooking rice
12/1996
12/17/1996US5584901 Dispersed phase separator
11/1996
11/14/1996DE19539348C1 Regulation of ambient conditions within a sauna cabin
10/1996
10/02/1996EP0735301A2 Thermostatic valve
07/1996
07/03/1996CN1125857A Control system for calculating coal and gas mixed thermal value and pressure
07/03/1996CN1125553A Apparatus for automatically cooking rice and method for controlling the same
05/1996
05/29/1996CN1123574A Indoor climate controller
04/1996
04/23/1996US5510989 System for influencing the travel dynamics of an automobile
04/09/1996US5505378 Air-conditioner controllable to simulate environmental characteristics of various world regions
03/1996
03/27/1996EP0702891A1 Combine operation with operating data registry
03/06/1996EP0699317A1 Indoor climate controller
02/1996
02/29/1996DE4429809A1 Fully automatic, continuous fermentation control
01/1996
01/02/1996CA2031962C Method of controlling the quality of dough during its processing
12/1995
12/19/1995US5475986 Microprocessor-based control system for heat pump having distributed architecture
11/1995
11/02/1995WO1995029435A1 Sensor system for controlling ventilation systems in vehicles
11/02/1995WO1995029072A1 Sensor arrangement for controlling vehicle ventilation systems
11/02/1995EP0679350A1 Hair dryer with controlled air flow
09/1995
09/27/1995EP0674249A1 Mixing or homogenizing a first liquid and a second liquid or a gas
09/26/1995USRE35040 Pressure and temperature relief valve and diaphragm valve
09/26/1995US5453077 Infant thermal support device
09/19/1995US5450999 Variable air volume environmental management system including a fuzzy logic control system
07/1995
07/04/1995US5428964 Control for air quality machine
06/1995
06/27/1995US5426951 Air conditioning apparatus with cross control means therein
03/1995
03/30/1995WO1995008260A1 Hydroponic control apparatus
03/28/1995US5400607 System and method for high-efficiency air cooling and dehumidification
12/1994
12/07/1994CN1096092A Decoupling and controlling system for mixed thermal value and pressure of gas
11/1994
11/29/1994CA1333294C Method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners
11/24/1994WO1994027203A1 Indoor climate controller
11/15/1994US5364024 Application independent, portable room temperature and humidity controller
10/1994
10/20/1994DE4312088A1 Diaphragm-controlled flow regulating valve
09/1994
09/13/1994US5346129 Indoor climate controller system adjusting both dry-bulb temperature and wet-bulb or dew point temperature in the enclosure
07/1994
07/21/1994WO1994016374A1 Control system for one or more working areas
07/13/1994EP0380615B1 A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners
05/1994
05/10/1994US5309725 System and method for high-efficiency air cooling and dehumidification
04/1994
04/19/1994US5303561 Control system for heat pump having humidity responsive variable speed fan
03/1994
03/03/1994DE4228893A1 System for controlling travel dynamics of road vehicle e.g. for ABS or ASR - has sensors for determining longitudinal, transverse or sheer coupled to and physically combined with evaluation unit in module, and separates further evaluation units for activating actuators from module
01/1994
01/27/1994DE4224016A1 Control of cooling in stores of agricultural grain or fodder - involves continuous measurements of temp. in surrounding air as well as in grain cooled by two-phase fluid circulation in air duct
01/11/1994CA1326077C Precision a/d converter utilizing a minimum of interface interconnections
12/1993
12/22/1993CN2150579Y Intelligent controller for automobile
11/1993
11/16/1993US5263116 Heater for liquid
07/1993
07/22/1993WO1993014451A1 Electronically timed shower controller
06/1993
06/30/1993CN1073783A Electromechanical integrated digital-control needle valve
04/1993
04/29/1993DE4135430A1 Fluid dispenser for controlled rate and temp. of delivery - dispenses purging nitrogen in packing industry applications, for raid cooling of hot products
02/1993
02/18/1993DE4127179A1 Climatic control method for animal shed to regulate temp. humidity and air quality - using microprocessor connected to humidity and temp. sensors to regulate heating and air flow
02/10/1993EP0526668A1 Heater for liquid
01/1993
01/26/1993US5181387 Air conditioning apparatus
09/1992
09/16/1992CN2116241U Bypass throttling constant speed loading shifting and emergency controller
08/1992
08/04/1992US5135684 Multiphase process mixing and measuring system
07/1992
07/22/1992CN1062919A Method for control calorific value pressure of mixed gases
07/21/1992US5131238 Air conditioning apparatus
04/1992
04/21/1992US5106636 Method of controlling the quality of dough during its processing
01/1992
01/22/1992EP0467037A2 Method and apparatus for welding of thermoplastic webs
01/22/1992EP0380615A4 A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners
12/1991
12/10/1991US5071066 Pressure and temperature responsive valve
10/1991
10/17/1991CA2036675A1 Pressure and temperature relief valve and diaphragm valve
09/1991
09/25/1991CN2085533U Manostat for water supply of fire-fighting
09/17/1991US5048751 Pressure and temperature relief valve and diaphragm valve
08/1991
08/27/1991CA1288144C Anti-frost system for a windshield of a motor vehicle
07/1991
07/31/1991EP0263166A4 Air conditioning apparatus
06/1991
06/26/1991CN1052413A Method of controlling quality of dough during its processing
06/26/1991CN1013005B Multifunctional automatic controller convenient to extend its functions
06/19/1991EP0433038A1 A method of controlling the quality of dough during its processing
06/18/1991US5025132 Microprocessor controlled food treatment cabinet with flash steamer and compensating humidity control routines
05/1991
05/02/1991EP0424503A1 Multiphase process mixing and measuring system
04/1991
04/23/1991US5009339 Method of and an apparatus for venting a filling plant
03/1991
03/15/1991CA2023843A1 System for creating comfortable space
01/1991
01/29/1991US4987748 Air conditioning apparatus
01/02/1991EP0405149A2 Room condition maintaining apparatus
11/1990
11/06/1990WO1990013859A1 Multiphase process mixing and measuring system
11/06/1990US4967739 Method of and apparatus for making rod-shaped articles of the tobacco processing industry
08/1990
08/08/1990EP0380615A1 A method for the optimal comfort and efficiency control of variable speed heat pumps and air conditioners.
06/1990
06/26/1990US4937575 Precision A/D converter utilizing a minimum of interface interconnections
05/1990
05/23/1990DE3838498A1 Device for the control of hoists
05/09/1990EP0366997A1 Method for deaerating a filling installation, and device for performing the method
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