| Patents for B60C 23 - Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps, of tanks; Tyre cooling arrangements (15,755) |
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| 09/03/1991 | CA1288499C Air pump pressure control system for inflating pairs of automotive tires |
| 08/22/1991 | DE4005265A1 Air pressure equaliser with radial pump for vehicle tyre - incorporates stroke conversion linkage under actuator head with return spring independent of spring loading of piston |
| 08/22/1991 | DE4002566A1 Tyre monitoring system, e.g. for measuring pressure temp. - has vacuum chamber press sensor, bimetallic ring for full temp. compensation |
| 08/21/1991 | EP0442827A1 Distribution tap for tyre inflating and deflating apparatus |
| 08/21/1991 | EP0377561B1 Device for regulating tyre pressure in motor vehicles, in particular agricultural tractors |
| 08/20/1991 | US5040562 Pressure drop signal generating valve cap for pneumatic tires |
| 08/20/1991 | US5040561 Signal generating tire valve |
| 08/20/1991 | CA2010506A1 Tire deflation sensor |
| 08/20/1991 | CA1287901C Method of detecting a deflated tyre on a vehicle |
| 08/14/1991 | EP0441600A2 Method of detecting a deflated tyre on a vehicle |
| 08/14/1991 | EP0441599A2 Method of detecting a deflated tyre on a vehicle |
| 08/07/1991 | EP0440083A1 Apparatus for regulation of the stiffness of a tyre and vehicle provided with such an apparatus |
| 08/06/1991 | US5037322 Plug-in connection for the electrical interrogation of data of a wheel revolution counter |
| 07/30/1991 | US5035274 Wheel/tire inflator |
| 07/30/1991 | US5035255 Device for changing the pressure in a tire of a motor vehicle |
| 07/30/1991 | US5035137 Tire pressure sensor for motor vehicles |
| 07/23/1991 | US5033295 Device for transmission and evaluation of measurement signals for the tire pressure of motor vehicles |
| 07/23/1991 | CA1286579C Axle and wheel assembly |
| 07/20/1991 | CA2033926A1 Valve cap pressure drop indicator |
| 07/16/1991 | US5032822 Tire deflation warning system |
| 07/11/1991 | WO1991009746A1 Device for warning of tire internal pressure |
| 07/11/1991 | CA2007625A1 Pressure monitoring device |
| 07/09/1991 | US5029468 Elements necessary for the excitation and the monitoring of wheel modules in a system for monitoring the wheels of a vehicle |
| 07/03/1991 | EP0435715A1 Pressure vessel outlet control device |
| 07/02/1991 | US5028749 Pressure switch |
| 07/02/1991 | US5027848 Pressure indicating valve stem |
| 07/02/1991 | US5027740 Valve cap pressure drop indicator |
| 06/26/1991 | CN2079579U Leakage alarm for tyre of car |
| 06/26/1991 | CN2079578U Inflating pump for bicycle |
| 06/25/1991 | CA1285198C Pressure drop indicating valve cap for pneumatic tires |
| 06/19/1991 | CN1052283A Pressure sensor system |
| 06/19/1991 | CN1052282A Device for tyre automatic inflating and protection |
| 06/18/1991 | US5025244 Tire pressure indicator |
| 06/14/1991 | CA2031852A1 Device for controlling the exhausting of an enclosure under pressure |
| 06/13/1991 | DE3940250A1 Liq. or gas vessel in vehicle - is contained inside profiled beam in chassis |
| 06/12/1991 | EP0431217A2 Delta P/delta t pressure sensor system |
| 06/12/1991 | CN2078704U Puncture alarm for trailer |
| 06/05/1991 | EP0430676A2 Capacitive pressure sensor |
| 06/05/1991 | EP0333708B1 Inflation pressure sensor for motor vehicles |
| 06/05/1991 | CN1051889A Automatic inflator |
| 06/05/1991 | CN1051888A Wheel with tyre inside its rim |
| 05/29/1991 | EP0429073A2 Pressure balancing device for multiple tyres |
| 05/29/1991 | CN2077810U Monitoring and alarming device for trailer tyre pressure |
| 05/29/1991 | CN2077809U Abnormal tyre pressure alarm |
| 05/29/1991 | CN2077808U Automatic inflating appliance for bicycle |
| 05/22/1991 | EP0290438B1 Circuit for transmitting values measured at vehicle wheels |
| 05/22/1991 | CN2077384U Wheel rim cover with tyre pressure display |
| 05/21/1991 | US5016894 Combination seat post and air pump for bicycle |
| 05/15/1991 | EP0426687A1 Pressure sensor for vehicle tyres |
| 05/15/1991 | CN2076936U Wheel hub insulated cover for tyre low-pressure alarm |
| 05/14/1991 | US5014759 Vehicle wheel having valve means to prevent misuse |
| 05/14/1991 | US5014643 Tire pressure indicator |
| 05/08/1991 | EP0425508A1 Tyre pressure sensor for motor vehicles |
| 05/08/1991 | CN1051146A Pump |
| 05/07/1991 | US5012954 Tire inflation system |
| 05/02/1991 | DE4007797C1 Circular coil fastener for attachment to motor vehicle - connects to pressure sensor for contactless transmission of tyre pressure signals |
| 05/01/1991 | CN2076038U Low-pressure alarm device for tyre of trailer |
| 04/25/1991 | DE3935298A1 Vehicle tyre pressure sensor - has membrane switch actuator with liq.-filled bellows with increasing pressure threshold with speed |
| 04/24/1991 | EP0424091A2 Tire valve having dual electric conducting paths |
| 04/24/1991 | EP0423462A1 Apparatus to monitor the airtightness of a vehicle tyre |
| 04/24/1991 | EP0423149A1 Pneumatic manometric switch and process for producing the same |
| 04/24/1991 | CN2075605U Bicycle self-carried inflator |
| 04/24/1991 | CN2075604U Bicycle self-sarried high-pressure inflator |
| 04/24/1991 | CN1050850A Tyre abnormal air-pressure alarm |
| 04/18/1991 | WO1991004874A1 Tyre and wheel monitoring system |
| 04/18/1991 | DE3933812A1 Air pressure balancing device for tubeless tyres - has air pump inside tyre, connected to atmosphere and with operating head below tyre inner surface |
| 04/17/1991 | EP0371966B1 Tyre pressure sensor for motor vehicles |
| 04/17/1991 | CN2075153U Miniature automatic air pump for cycle |
| 04/16/1991 | US5007365 Air-leak indicator for vehicle tire |
| 04/11/1991 | DE3933434A1 Air quantity monitor for vehicle tyre - has evaluating circuit on vehicle receiving signals from pressure and temp. sensors mounted on wheel rim with electronic circuit |
| 04/10/1991 | EP0421065A2 Method and means for vibration control of the wheel system of a car while driving |
| 04/10/1991 | CN2074718U Automatic inflation tyre |
| 04/09/1991 | US5006844 Tire abnormality detecting device |
| 03/28/1991 | DE3931049A1 Pressure sensor esp. for monitoring motor vehicle tyre - has electric switch formed from contact rod and diaphragm welded to housing inside pressure chamber |
| 03/27/1991 | EP0418495A1 Tyre pressure control apparatus |
| 03/26/1991 | US5002342 Brake assembly heat shield |
| 03/26/1991 | US5002005 Low-tire warning device |
| 03/20/1991 | EP0417712A1 Valve for vehicle tyres provided with signalisation means |
| 03/20/1991 | EP0417704A1 Pressure signal-producing valve cap for a pneumatic tyre |
| 03/20/1991 | EP0417427A1 Apparatus for monitoring the pressure of a vehicle tyre |
| 03/20/1991 | EP0417267A1 Vehicle tire identification system. |
| 03/20/1991 | CN2073380U Alarm device for tyre brokedown of automobile trailers |
| 03/19/1991 | US5001457 Electronic signal device for a set of pneumatic tires |
| 03/14/1991 | DE3930095A1 Valve arrangement for vehicle tyre pressure monitoring - contains pressure monitoring device activating auxiliary valve closure body actuator element |
| 03/14/1991 | DE3930093A1 Rotational speed transducer for vehicle - uses arrangement of holes around rim of device to improve signal quality |
| 03/13/1991 | EP0416788A1 Reversible poppet valve cartridge |
| 03/06/1991 | CA2023374A1 Reversible poppet valve cartridge |
| 03/05/1991 | US4998092 Tire valve |
| 02/27/1991 | CN2072030U Adjustable ultramicro manostat with tyre valve type |
| 02/26/1991 | US4996516 Indicator of under inflated tire |
| 02/21/1991 | WO1991001896A1 Pressure sensor for motor vehicle tyres |
| 02/20/1991 | CN2071599U Miniature high-pressure quickly and automatically inflating pump for bicycle |
| 02/20/1991 | CN1011680B Apparatus for tyre pressure adjustment |
| 02/14/1991 | DE3926391A1 Vehicle tyre pressure regulator - has rim-mounted piston pump with piston rod extending to opposite inner tyre wall |
| 02/14/1991 | DE3926245A1 Reifendrucksensor fuer kraftfahrzeuge Tire pressure sensor for motor vehicles |
| 02/13/1991 | EP0412444A1 Electrical connector and set comprising an electrical connector and an associated contact |
| 02/13/1991 | CN2071152U Bicycle with air-tube damping saddle |
| 02/13/1991 | CN2071137U Rocker arm type air pump |
| 02/12/1991 | US4991618 Air pressure indication and control system for a tire stem air valve |
| 02/07/1991 | DE3921104A1 Tyre pressure control for goods vehicle - with arrangement of seals to avoid rotational wear |