Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8186208 | Pressure measuring module for detecting air pressure within a tire included in a wheel assembly attached to a vehicle body and tire pressure monitoring system The present invention provides a small-sized pressure measuring module suitable for replacement of a tire, and a tire pressure monitoring system. The pressure measuring module detects pressure of air within a tire included in a wheel assembly attached to a vehicle b... | 05/29/2012 |
| 8166810 | Swinging apparatus and energy harvester using the same A swinging apparatus comprising an energy provider and a swinging mechanism disposed thereon. By means of adjusting the size and shape of the swinging mechanism and adjusting a distance between the swinging mechanism and the energy provider so as to control the rati... | 05/01/2012 |
| 7716976 | Method and apparatus for determining tire location in a tire pressure monitoring system using directional low frequency initiation A method is provided for determining tire location in a tire pressure monitoring system having the steps of generating an initiation frequency signal having a controllable output adapted to be received by a selected one of a plurality of tires of the tire pressure m... | 05/18/2010 |
| 7432801 | System and method for detecting a rapid leak from a tire A method of detecting a rapid leak of gas contained in an automobile tire based on periodic measurements of a pressure Pa and a temperature Ta of the gas. The method includes determining a reference pressure Pcref, calculating an alarm threshold pressure Sref from t... | 10/07/2008 |
| 7403103 | Wheel mounted power generator The present invention is directed to a wheel condition detection and signalling device. The device includes a chamber which is capable of being attached to a wheel of a truck to rotate therewith and a pendulum having significant mass and is rotatably mounted within ... | 07/22/2008 |
| 7398176 | Battery testers with secondary functionality An electronic vehicle tester includes a battery tester configured to measure a parameter of a battery of a vehicle. A tire tester is configured to receive a parameter of a tire of the vehicle. A wireless receiver can be configured to receive pressure information fro... | 07/08/2008 |
| 7391308 | Monitoring device, transceiver system and its control method A transmitter module has a sensor module that includes a plurality of sensors and operates intermittently, a signal processor module that permits transmission of an output of the sensor module to a receiver module at given permission timings, a radio transmission mo... | 06/24/2008 |
| 7362218 | Motion detection using a shock sensor in a remote tire pressure monitoring system A tire monitor for mounting to a vehicle as part of a remote tire monitoring system includes a tire condition sensor to produce a tire condition signal, a controller coupled to the tire condition sensor to control operation of the tire monitor, and a radio circuit c... | 04/22/2008 |
| 7334463 | Tire parameter sensing system having a tire rotation dependent transmission scheme A tire parameter sensing system (12) for a vehicle (10) comprises a vehicle-based unit (42) for receiving parameter signals. A tire-based unit (34) is associated with a tire (16) of the vehicle (10) and rotates with the tire... | 02/26/2008 |
| 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 |
| 7319380 | Device for the monitoring and wireless signaling of a pressure or a change of pressure in pneumatic tires A system for the monitoring and wireless signaling of a pressure or a change of pressure in pneumatic tires on vehicles, comprising wheel electronics that are disposed inside the pneumatic tire and are provided with a battery as a power source, with a pressur... | 01/15/2008 |
| 7305874 | Micromechanical pressure sensor element and method for using a pressure sensor element of this type A micromechanical pressure sensor element, in particular for tire pressure measurement. The device has at least: a layer system having a diaphragm underneath which a cavity is formed, which is separated from an external space outside the pressure sensor element; a m... | 12/11/2007 |
| 7307521 | Secure method and apparatus for retrieving network node identifier in wireless networks A sensor node arrangement in a wireless network, includes a sensor to sense information, an RF transceiver to communicate the information to at least one element of the wireless network, and a coil to establish a secondary communications channel with a handheld devi... | 12/11/2007 |
| 7284417 | Tire monitor A tire monitor for a vehicle includes a sensor disposed in the tire, a power supply connecting a first and second ends of the sensor, the power supply applying a predetermined effort across the first and second ends and causing a flow through the sensor, a meter dis... | 10/23/2007 |
| 7271708 | System informing a state of a wheel assembly of a vehicle and a method for informing the same Wheel assembly identification indicating members and first communication devices are respectively mounted to wheel assemblies mounted to a vehicle body. The indicating members have characteristic appearances, which are different among the wheel assemblies and which ... | 09/18/2007 |
| 7269530 | Wireless transmission method for tire detection signals A wireless transmission method for tire detection signals increases the percentage of successfully received tire detection signals received by the receiving unit and extends the usage life of batteries. A delay time for emitting the tire detection signals via the de... | 09/11/2007 |
| 7265660 | Tire pressure detecting apparatus A tire pressure detecting apparatus detects the pressure and location of a tire in a vehicle and notifies a person in the vehicle of each tire pressure and the location of the tire linked with the tire pressure. Terminals are arranged on the tires of the vehicle, re... | 09/04/2007 |
| 7260497 | Tire air pressure monitoring system A tire air pressure monitoring system is provided with at least one trailer-use receiving unit, which is mounted at a rear end of a tractor head to receive radio wave sent by multiple tire air pressure sending units. The tire air pressure sending units are respectiv... | 08/21/2007 |
| 7259663 | Wheel state adjustment system and method thereof A pressure detection sensor for detecting a tire internal air pressure and a wheel side communication device for transmitting a detection result of the pressure detection sensor using a preset transmission mode are provided on each wheel. The detection result from t... | 08/21/2007 |
| 7251993 | Tire information communication system A tire information communication system mounted on a vehicle includes a tire-pressure detector mounted on a tire wheel for detecting a pressure of a tire and transmitting a result of detection, a tire monitor mounted on a vehicle body for obtaining information about... | 08/07/2007 |
| 7250852 | Handheld tire sensor communication device A device for interrogating at least one data sensor positioned at least one of within a vehicle tire and adjacent to a vehicle tire. The device includes a housing, remotely located from the at least one data sensor having a processor positioned therein. Means for se... | 07/31/2007 |
| 7230525 | Tire air pressure monitoring system A tire air pressure monitoring system is provided that comprises a transmitting device, a receiving device, and a tire identification number registration device. The transmitting device is mounted on a wheel of a vehicle, and configured and arranged to wirelessly tr... | 06/12/2007 |
| 7209032 | System for transmitting tire condition variables The present invention relates to a system for transmitting tire condition variables from a transmission device mounted on a motor vehicle to an electronic evaluating or control unit arranged in the area of the vehicle body, which is detachably fastened to a motor ve... | 04/24/2007 |
| 7205885 | Tire sensor communication system A wheel sensor communication system (10) includes a primary coil (30) and a secondary coil (32), which operate as an electromagnetic transformer which is uncoupled mechanically but coupled electrically through a vehicle wheel assembly rotational... | 04/17/2007 |
| 7202778 | Wireless tire pressure sensing system A wireless tire pressure sensing system for an aircraft comprises: dual resonant circuits mounted to a wheel of the aircraft, each resonant circuit comprising: a variable capacitance sensor and a wire loop of a predetermined inductance coupled thereto, one capacitan... | 04/10/2007 |
| 7196618 | Tire pressure monitoring device A tire pressure monitoring device includes a planar circuit board, a sensor, a controller, and an antenna. The sensor is mounted on the circuit board, is adapted for detecting a pressure of a pneumatic tire of a vehicle, and is operable so as to generate a signal th... | 03/27/2007 |
| 7185534 | Ply wire sensor system for a tire A ply wire sensor system is provided for a tire carcass ply in a green tire carcass having a toroidal shape, the tire carcass ply having a plurality of spaced apart ply wires extending across the toroidal shape. The sensor system includes a wire sensor mounted in cl... | 03/06/2007 |
| 7173521 | Tire air pressure warning system and method for warning against tire air pressure To issue a warning against an improper (a lowered) air pressure in accordance with a vehicle state and driver's presence/absence, the warning system includes air pressure measuring means for measuring an air pressure of a tire of a vehicle; air pressure judging mean... | 02/06/2007 |
| 7161476 | Electronic tire management system An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a ... | 01/09/2007 |
| 7154414 | System and method for remote tire pressure monitoring A system and method for monitoring vehicle tire pressure. A tire pressure monitor for each tire includes a pressure sensor for sensing tire pressure, a transmitter for transmitting a tire pressure signal representative of the sensed tire pressure, and a batter provi... | 12/26/2006 |
| 7148793 | Tire parameter sensing system having auto-location feature and associated method A tire parameter sensing system (12) for a vehicle (10) having a plurality of tires (16, 18, 20, 22) comprises a plurality of tire-based units (34, 36, 38, 40). Each tire-based unit (34, 36, 38, 40) being configured to receive init... | 12/12/2006 |
| 7145446 | Transponder for tire condition monitoring apparatus A transponder for a tire condition monitoring apparatus is provided. The transponder detects a condition of a tire and wirelessly transmits data representing the detected condition in response to radio waves having a field intensity equal to or greater than a predet... | 12/05/2006 |
| 7129828 | Encapsulated surface acoustic wave sensor Sensor package systems and methods are disclosed, which include a quartz sensor package encapsulated by an overmold material. A surface acoustic wave sensing element and one or more bonding pads can be integrated with the quartz sensor package. Additionally, one or ... | 10/31/2006 |
| 7116217 | Transmitter and receiver for tire condition monitoring apparatus In an internal memory of a reception controller such as, for example, a ROM, a correction table is stored for correcting air pressure data. The reception controller receives a signal representing vehicle speed from a speedometer of the vehicle. The reception control... | 10/03/2006 |
| 7111508 | Tire sensor localization utilizing speed corrected frequency A method of localizing the location of a received signal from a tire pressure sensor includes sending an AM identification signal. The AM signal is adjusted for speed such that the frequency of the signal equals a constant multiplied by the speed of the vehicle. Eac... | 09/26/2006 |
| 7111507 | Method for compensating temperature in a tire pressure monitoring system The invention discloses a method for compensating temperature in a system for tire pressure monitoring which is especially implemented by detecting a tire pressure and/or by detecting a tire pressure loss. The method is especially characterized in that the temperatu... | 09/26/2006 |
| 7107830 | Wireless tire pressure monitoring system (WTPMS) dual-sectional monitor signal transmission module A dual-sectional monitor signal transmission module for Wireless Tire Pressure Monitoring Systems. On one side of this monitor signal transmission module, an air tap is designed, which can be assembled and fixed in the hole of the tire rim. This Monitor Signal Trans... | 09/19/2006 |
| 7089147 | Wireless tire-pressure monitor A wireless tire-pressure monitor mainly has a cylindrical body, a seal assembly, a screw and a sensor. The cylindrical body is mounted through a hole in a wheel rim wall and has an air passage, an interior thread defined in the air passage and a flange formed around... | 08/08/2006 |
| 7088226 | Method and apparatus for a remote tire pressure monitoring system A tire characteristic monitoring method allows automatic programming of tire position information in a remote tire pressure monitoring system (10). The method includes, from a remotely located exciter (16) using a primary coil (18) to transmit a... | 08/08/2006 |
| 7075421 | Tire temperature and pressure monitoring sensors and systems A tire monitoring system providing tire status and notifying or warning the vehicle operator of early detection of imminent tire failure and performance degradation; thus improving safety by preventing blowouts from occurring, lengthening tire life by encouraging pr... | 07/11/2006 |
