Patents for G05D 9 - Level control, e.g. controlling quantity of material stored in vessel (4,688) |
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11/22/1994 | US5365783 Capacitive sensing system and technique |
11/08/1994 | US5363471 Electrode boilers with cylinder full sensor control |
11/02/1994 | EP0544787B1 Method for controlling the level of solvent vapor in a vessel |
10/27/1994 | WO1994024619A1 Level control switch |
10/26/1994 | CN2181020Y Multi-function water pump level automatic controller |
10/25/1994 | US5358003 Method and apparatus for maintaining level of water in above-ground swimming pools |
10/19/1994 | CN2179982Y Totally-enclosed contactless level controller |
10/18/1994 | CA2012195C Method and apparatus for filling tubes |
10/13/1994 | DE4311737A1 Method and device for continuous measurement of sedimentation or flotation rates |
10/04/1994 | US5352415 Control system for acetic acid manufacturing process |
10/04/1994 | US5351725 System for monitoring fills of liquid in a tank container and ongoing liquid condition |
09/28/1994 | CN2178364Y Automatic controller for liquid supply and discharge |
09/27/1994 | US5349994 Control system for filling tanks with liquids |
09/21/1994 | EP0616277A2 Water level regulating system |
09/14/1994 | CN1092036A Liquid supply control arrangement |
09/13/1994 | CA2054380C Liquid level control with capacitive sensors |
09/07/1994 | EP0614135A1 Liquid dispensing reservoir having a flow rate that is independent of the liquid level |
09/07/1994 | EP0613855A1 Bottling machine for transparent containers |
09/07/1994 | EP0613545A1 Process for setting, controlling and monitoring the level in a refrigerant evaporator. |
09/07/1994 | CN2176561Y Multifunctional and automatic water level controller |
09/01/1994 | DE4343750A1 Drink filler with froth control |
09/01/1994 | DE4305924A1 Device for detecting the overfilling of an overflow channel for liquids |
08/23/1994 | US5339854 Conservation system and method |
08/18/1994 | DE4304435A1 Safety mechanism against overfilling for light-liquid separators |
08/17/1994 | CN2174726Y Electronic automatic controlling device for water level |
08/11/1994 | DE4402975A1 Failure monitoring device of a water feed system of an electrical household appliance |
08/10/1994 | EP0609377A1 Method and apparatus for controlling liquid level in a knot drainer |
08/09/1994 | US5336054 Automatic water shut-off dispensers |
08/09/1994 | US5335704 Pasteurized to raw liquid processing system |
08/02/1994 | US5335185 Automatic level control system and method |
07/21/1994 | DE4333666C1 Arrangement for determining optically visible phase boundaries in liquids |
07/20/1994 | CN2172492Y Pressure contrast automatic water controller |
07/13/1994 | CN1089373A Self-regulating controller for liquid level |
07/06/1994 | CN2171132Y Level adjusting device for strong solution discharging box of lithium cold/warm water machine generator |
06/29/1994 | EP0549603B1 Safety device for domestic appliances through which water flows |
06/22/1994 | EP0602604A1 Vacuum Valve |
06/22/1994 | CN2169871Y Buoyancy automatic switch water saving device |
06/21/1994 | US5322198 Pump-equipped liquid supply system |
06/15/1994 | EP0601867A1 Liquid supply control arrangement |
06/15/1994 | CN2169154Y Electric dosage adjuster for liquid media |
06/07/1994 | US5319172 Microwave melting furnace for treating liquid |
05/24/1994 | US5314313 Water-sensing alarm for water-control systems |
05/24/1994 | CA1329753C Liquid level control system |
05/18/1994 | CN2165428Y Supersonic charge level monitor for uncharging for cement shaft kiln |
05/17/1994 | US5312594 Sewage treatment apparatus |
05/11/1994 | EP0596863A1 Portable product refill tank unit |
05/10/1994 | US5310087 Continuous feed, chemical switching unit |
05/10/1994 | US5309939 Safety device for water-conducting household appliances |
05/04/1994 | CN2164059Y Water-storage level self controller for tap water containers |
05/04/1994 | CN2164058Y Microcomputer-control liquid quantitative filling device |
05/03/1994 | US5308504 Pumps and detectors for flow control systems |
04/26/1994 | US5305779 Method, system, and apparatus for operating large power generating stations with improved environmental protection measures |
04/20/1994 | CN1024301C Central monitoring & automatic control system for water supply tank in high building |
04/14/1994 | DE4233843A1 Filling bottles or similar containers with liquid - involves measuring bottle shape or related dimension to eliminate shrinkage errors |
04/13/1994 | CN2161945Y Telescoping type controller for water level |
04/13/1994 | CN1024225C Multifunctional liquid level long-range controller |
04/07/1994 | DE4233371A1 Measuring flow of waste water through non-siphoned waste water pipe - operating magnetic=inductive sensor with motorised choke dependent on water level in upstream chamber or channel |
03/24/1994 | DE4231235A1 Integrating rainfall gauge with memory and periodic drain valve - stores and integrates value of output from level sensor prior to each emptying operation on small collector |
03/24/1994 | DE4231046A1 Storage tank for liquid esp. for IC engine lubrication oil - has filling connection with filler cap closable according to filling level in tank |
03/15/1994 | US5293896 Arrangement for measuring the level of liquified gases |
03/03/1994 | WO1994004971A1 Liquid level control device |
03/01/1994 | US5289846 Automatic liquid replenishing system |
02/23/1994 | CN2157536Y Float level controller |
02/17/1994 | DE4227020A1 Connection unit with automatic fresh water feed - supplies fresh water only when cistern level is insufficient |
02/16/1994 | CN2156532Y Float force gravity hammer type liquid level controller |
02/16/1994 | CN2156531Y Liquid level automatic controller |
02/16/1994 | CN2156530Y Mine pulp trough liquid level automatic adjuster for filtering machine |
02/15/1994 | US5287086 Proximity detection system and oscillator |
02/15/1994 | US5285653 Refrigerant flow control device |
02/02/1994 | CN2155036Y Water level controller with automatic feeding water |
01/27/1994 | DE4305390C1 Fluid container with controlled feed chamber - incorporates rise pipe, overflow connection and freely movable rod connected to float and closure piston |
01/13/1994 | DE4222240A1 Washing machine inlet valve calibration - using separate measurement for the flow vol. and trickle flow vol. |
01/12/1994 | CN2153083Y 多功能控制器 Multi-function controller |
01/05/1994 | CN2152233Y Magnetic water level controller |
12/22/1993 | CN2150578Y Float-ball liquid-level controller |
12/22/1993 | CN2150577Y Multipurpose automatic controller for liquid level |
12/15/1993 | CN2149652Y Computerized liquid level controlling means |
12/08/1993 | EP0572886A1 Flow regulator for the outlet of a liquid container |
11/24/1993 | CN2147572Y 水位控制器 Water Level Controller |
11/24/1993 | CN2147571Y 微电脑液位控制器 Micro-level controller |
11/18/1993 | EP0569728A1 Liquid supply apparatus |
11/17/1993 | CN2146732Y Microdifferential level controller |
11/11/1993 | DE4214768A1 Measuring, monitoring and controlling appts. for liq. level in container, esp. engine sump - has two lines connecting sump to reservoir container, one line with controlled valve opened after engine has stopped |
11/10/1993 | CN2146023Y Level self-control alarm |
11/10/1993 | CN2146022Y Wholly-enclosed level controller |
11/10/1993 | CN2146021Y Electromechanical Stock level controller |
11/10/1993 | CN1022716C Float bowol hammer left-right circuit switch device |
11/03/1993 | CN2145401Y Automatic controllor for water lever |
11/02/1993 | US5258146 Method of and apparatus for measuring and controlling fluid level in stereolithography |
10/27/1993 | CN2144830Y Electronic self-closing device for water fulling |
10/27/1993 | CN2144829Y Liquid level control switch |
10/21/1993 | DE4212688A1 Controlling water supply and discharge in washing machines - by measuring waste water quality and recycling water if appropriate |
10/20/1993 | CN2144321Y Automatic controller for liquid level |
10/19/1993 | US5253374 Method and apparatus for maintaining level of water in above-ground swimming pools |
10/05/1993 | US5249431 Residual coolant sensor for air conditioning system |
09/29/1993 | CN2142979Y Alarm controller of capacitor-type for tumbrel liquid level not contacted with each other |
09/29/1993 | CN2142978Y Automatic controller for liquid level |
09/29/1993 | CN2142675Y Cup for blind person |
09/28/1993 | US5247710 Reservoir level control system |
09/23/1993 | DE4220642A1 Arrangement for automatic control of outflow of liquid of given density e.g. for compression refrigerator - contains housing with float operated denser liquid outlet opening and closing |