Patents
Patents for H01H 29 - Switches having at least one liquid contact (943)
02/1997
02/19/1997CN2247868Y Door lock limit switch for elevator
02/11/1997US5602371 Motor vehicle electrical system deactivating switch
01/1997
01/29/1997CN2246328Y Oblique switch
12/1996
12/03/1996US5581192 Conductive liquid compositions and electrical circuit protection devices comprising conductive liquid compositions
10/1996
10/31/1996DE19515161A1 Non-manual input device e.g. for controlling computer by disabled person
10/08/1996US5563492 Vehicular battery charging switch
09/1996
09/12/1996WO1996027892A1 Electroconductive liquid in a temperature range from less than -50° to more than 160 °c
09/05/1996DE19507610A1 Im Temperaturbereich von <-40 DEG C bis> 100 DEG C elektrisch leitfähige Flüssigkeit In the temperature range of <-40 ° C to> 100 ° C electrically conductive liquid
06/1996
06/25/1996US5530621 Portable electronic module device with tactile button and tact switch
06/07/1996CA2164496A1 Electrical circuit protection devices comprising conductive liquid compositions
05/1996
05/22/1996CN1031839C Protective device for submersible electric motor
05/01/1996CN2226337Y Nondestructive bidirectional switch
04/1996
04/18/1996WO1996011287A1 Metallic material with low melting temperature
04/18/1996CA2200297A1 Metallic material with low melting temperature
04/16/1996US5508003 Metallic material with low melting temperature
04/10/1996EP0706028A1 Inclination sensor and method for its manufacture
02/1996
02/14/1996CN2220118Y Liquid arcless switch for electrical equipment
01/1996
01/31/1996CN2218973Y Combined switch for cutter
01/16/1996US5483748 Sound indicative leveling apparatus
01/03/1996EP0552232B1 An electric power train for vehicles
12/1995
12/26/1995US5478978 Electrical switches and sensors which use a non-toxic liquid metal composition
12/13/1995EP0686116A1 Electrical switches and sensors which use a non-toxic liquid metal composition
11/1995
11/28/1995US5471185 Electrical circuit protection devices comprising conductive liquid compositions
11/09/1995WO1995030129A1 A detector
11/09/1995CA2189123A1 A detector
10/1995
10/25/1995EP0678968A2 A reconfigurable electric power train for vehicles
08/1995
08/15/1995US5442250 Electric power train for vehicles
04/1995
04/12/1995CN2194543Y 自动位置开关 Automatic position switch
03/1995
03/29/1995EP0645050A1 Mercury-free position switch
03/29/1995CN2193591Y Micro-vibration trigger switch
03/01/1995CN2190821Y Multifunction electronic posture corrector
02/1995
02/21/1995US5391846 Alloy substitute for mercury in switch applications
11/1994
11/30/1994CN1095868A 潜水电机保护器 Submersible motor protection
11/09/1994CN2182477Y Multi-function circuit protector
10/1994
10/26/1994CN2180242Y 电动按摩球 Electric massage ball
10/25/1994US5359162 Shock sensor switch having a liquid conductor
10/04/1994US5352512 Microscopic tube material and its method of manufacture
09/1994
09/01/1994WO1994019243A1 Electrical switches and sensors which use a non-toxic liquid metal composition
09/01/1994CA2153662A1 Electrical switches and sensors which use a non-toxic liquid metal composition
08/1994
08/03/1994CN2173457Y Mercury overcurrent relay
07/1994
07/06/1994CN1089064A Submersible motor switch protector
06/1994
06/29/1994CN2170063Y Water-free protecting circuit for household soya-bean milk machine
06/08/1994CN2168329Y Glass mercury conductive switch
06/01/1994CN2167438Y Rolling ball type shaping switch
04/1994
04/06/1994CN2160983Y 液位开关 Level Switches
03/1994
03/31/1994DE4244724A1 Mercury-free liq.-inclining switch - comprises insulating housing contg. two electrodes and electrically conducting liq.
03/17/1994WO1993026025A3 Mercury-free position switch
02/1994
02/23/1994CN2157594Y Enclosed mercury universal switch
02/02/1994CN2155097Y Underwater electric motor protector
01/1994
01/05/1994CN2152296Y Vertical inclined automatic change-over switch
12/1993
12/23/1993WO1993026025A2 Mercury-free position switch
12/09/1993DE4218560A1 Mercury-free liquid tilt switch e.g. for turning on pump w.r.t. liquid level - has semiconductor component, e.g. triac, in circuit associated with electrodes with conductive liquid closing switching circuit to turn on compound machinery
10/1993
10/05/1993CA1322669C Mercury inertial transducer, a unit including the transducer and its support and a light-emitting deceleration and stopping indicator for motor vehicles, incorporating the transducer
09/1993
09/16/1993DE4236328C1 Acceleration and inclination sensor for vehicle automatic transmission - detects position and deformation of freely movable mercury drop within arcuate hollow space contg. contact electrodes
07/1993
07/28/1993EP0552232A1 An electric power train for vehicles.
07/27/1993US5231376 Tool transport container apparatus
07/21/1993EP0551583A1 Illuminating device, in particular for equipping buildings without mains electricity
07/20/1993US5228304 Refrigerant loss detector and alarm
05/1993
05/13/1993CA2055350A1 Tilt sensitive switch
04/1993
04/28/1993CN2131193Y 水银开关 Mercury switch
04/28/1993CN2130904Y Light anti-theft safe
03/1993
03/30/1993US5198628 Shock insensitive tilt switch with floating spherical restrictor to inhibit flow of conductive liquid
03/10/1993CN2128013Y Glass case mercury electricity conduct universal switch
03/09/1993US5191999 Liquid actuated switch device
12/1992
12/29/1992US5175402 Mercury float switch
12/03/1992DE4117355A1 Position responsive switch for electrical appts. - using non-metallic, electrically-conducting liquid for bridging spaced electrodes in switched tube
10/1992
10/13/1992US5154226 Automatic changeover thermostat with single bi-metal and common set lever having individual heat and cool setpoint indicators
09/1992
09/30/1992CN1064934A Digital model change-over switch
09/16/1992CN2116272U Obliqueness and vibrating induction block
09/01/1992US5143208 Level sensor
08/1992
08/25/1992US5140976 Massager with mercury switch
08/06/1992WO1992012870A1 Device for stabilizing the swinging motion of vehicle chassis
07/1992
07/29/1992CN2111536U Temp. control device of fan
06/1992
06/17/1992CN2107616U Temp. controlling switch for centrol heating circulation pump
06/10/1992CN2107039U Automatic level controller
05/1992
05/26/1992CA1301716C Syrup sensor with a probe for dispensing machine
05/20/1992CN2105121U Pressure difference mercury switch
05/12/1992US5112236 Electrical contact
04/1992
04/30/1992WO1992006650A1 A suction device to be used in dental care
04/30/1992DE4104429A1 Saugapparat zur anwendung in der zahnpflege Aspirator for application in the dental hygiene
04/30/1992DE4034338A1 Tipper vehicle tip warning device - uses U=shaped tube containing inclination fluid for detecting inclination of vehicle axis
04/29/1992CN1016475B Thermostatic conductance universal effect element for mutual control
04/16/1992WO1992006530A1 An electric power train for vehicles
01/1992
01/28/1992US5083676 Hazardous fluid dispenser safety system having a mercury tilt switch
12/1991
12/25/1991CN2091142U Myopia aligning instrument
12/18/1991CN2091025U 动态开关 Dynamic switching
12/18/1991CN2090994U Zd model sensor for rainfall
12/05/1991DE4017314A1 Liquid level indicator for plant container - has contacts at minimum and maximum levels with immersion detection circuit operated for defined period by pushbutton
11/1991
11/21/1991EP0457675A1 Electrical contact
11/18/1991CA2042769A1 Electric contact
10/1991
10/01/1991US5053751 Water alarm to signal flooding in basements
08/1991
08/28/1991CN1054133A 液柱式压力敏感装置 Liquid column pressure sensitive device
07/1991
07/31/1991CN2082024U 水银熔断器 Mercury fuses
07/30/1991US5035547 Magnet base drill unit
07/23/1991US5034582 Momentary rotating mercury switch
07/09/1991US5030955 Remote control transmitter
06/1991
06/04/1991US5021618 Acceleration responsive switch
05/1991
05/02/1991DE4032297A1 Acceleration sensing switch for operating airbag - has mercury element displaced by acceleration force to bridge contacts
04/1991
04/18/1991DE3934456A1 Mfg. mercury switch input-shaped housing - with sphere heat drying and vacuum sealing mercury in sterilised container
02/1991
02/06/1991CN2070921U Alarm clock with automatic stopping alarm after knocking over
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