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| Number | Title | Issue Date |
| 7327244 | Valve device with pressure alarm for tire A valve device includes a metal tube fixed to a tire rim of a vehicle. A valve is mounted in an end of an air passageway of the metal tube. A transmitter includes two switches respectively connected to two contact members fixed on the metal tube. A Bourdon tube incl... | 02/05/2008 |
| 7278369 | Temperature indicator using thermochromic materials A temperature indicator for a rubber article comprises a thermochromic material, wherein the thermochromic material is a component of a rubber article selected from the group consisting of tires, belts and hoses. A rubber article containing a temperature indicator i... | 10/09/2007 |
| 7218210 | Pressure sensing method and apparatus A multi-wheel highway vehicle for transporting passengers, cargo or both has a plurality of wheels supporting the vehicle with the wheels having pneumatic tires mounted thereon, at least one transducer connected to one of the wheels for sensing pressure in a tire mo... | 05/15/2007 |
| 7212104 | Power consumption protocol Low power consumption protocol A telemetry unit (100) is provided for mounting inside a pneumatic tire, which includes a piezoelectric element (114) supported in a housing (112), with an actuator (136) arranged for contact with the elemen... | 05/01/2007 |
| 7202777 | Tire condition monitoring system A tire condition monitoring system is composed of a detector installed in each tire, a transmitter positioned in the vicinity of each tire, and a monitor communicating with the transmitters and the detectors. An initiation signal for initiating operation of the dete... | 04/10/2007 |
| 6994133 | Low or no pressure usage indicator for a tire A low or no pressure use indicator for use on a tire is provided. The tire has a crown and a pair of sidewalls that extend from the crown. Each of the sidewalls has a bead located on an end of the sidewall that is opposite from the crown. The low or no pressure use ... | 02/07/2006 |
| 6842671 | Systems and methods for controlling handling characteristics of a tire One embodiment of the present invention relates to systems and methods for controlling handling characteristics of a tire. Another embodiment of the present invention relates to a tire having controllable handling characteristics. ... | 01/11/2005 |
| 6536368 | Tire Disclosed herein is a pneumatic vehicle tire comprising a pair of sidewalls and a ground engaging surface extending therebetween, at least one of the sidewalls bearing an outwardly visible inflation-indicating ring and a pair of sighting rings. At least a... | 03/25/2003 |
| 4996516 | Indicator of under inflated tire An indicating device adapted to indicate a flat or severely underinflated tire. The device is activated by the enlargement in the diameter of the underinflated tire caused by centrifugal force acting on the tread, and may be especially useful on dual whee... | 02/26/1991 |
| 4851809 | Tire inflation indicator A tire inflation indicator is integrated into the sidewall of a tire to give a visual indication of proper pressurization. A small lamp is imbedded in the sidewall and is electrically connected through the sidewall to a pneumo-mechanical switch and batter... | 07/25/1989 |
| 4814744 | Low tire-pressure warning system A method and apparatus for detecting low air pressure in pneumatic tires on a vehicle and conveying this information to the operator of the vehicle. The invention utilizes a resonating device which creates subsonic, sonic, or ultrasonic air waves when it ... | 03/21/1989 |
| 4760371 | Vehicle tyre monitoring system A tyre running hot due to under-inflation or other causes radiates heat. This is detected by sensors (4,27) positioned within the wheel arches. A comparison is made between each sensor output and a norm, such as ambient temperature from air temperature de... | 07/26/1988 |
| 4318436 | Tire sidewall addition members that undergo perceptible change during abnormal operation In the combination of detachable addition members with rubber articles, particularly tire sidewalls, wherein each article has a circumferentially discontinuous first coupling portion adapted to operatively interact with a second coupling portion on the ad... | 03/09/1982 |
| 4134357 | Pneumatic tire inflation level indicator Pneumatic tire having an integral inflation indicator in the form of interdigitized groups of raised mesas affixed to the sidewall of the casing on opposite sides of the centerline of the sidewall. The two groups pivot apart by flexing of the sidewall und... | 01/16/1979 |
