Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8176958 | Magneto-rheological elastomer wheel assemblies with dynamic tire pressure control A wheel assembly includes a magneto-rheological elastomer (MRE) assembly disposed between a rim and a tire assembly. The MRE assembly may be configured to adjust a tire pressure within a chamber between the rim and the tire assembly when a magnetic field is applied ... | 05/15/2012 |
| 8087439 | Wheel with integrated and non-integrated central tire inflation This wheel has features allowing both integrated and non-integrated Central Tire Inflation (CTI) systems to be installed, without the need for a specialized manifold, adapter, or unique wheel to accommodate each specific system. Thus, a single, light-weight wheel in... | 01/03/2012 |
| 7357164 | Tire pressure maintenance system A device is provided for maintaining a desired inflation pressure within a tire mounted on a wheel of a vehicle. The device includes a microcompressor and a magnetic element. The compressor is mounted on the wheel and is in fluid communication with the atmosphere an... | 04/15/2008 |
| 7322392 | Tire pump A tire pump includes a passive air pump which is attachable to a component of a vehicle wheel assembly. The vehicle wheel assembly has a vehicle wheel, a tire valve stem attached to the vehicle wheel, and a tire mounted on the vehicle wheel and containing a gas. The... | 01/29/2008 |
| 7314072 | Integral pressure regulation system for tires and other vessels containing compressible fluids An inflation and pressure regulation system for inflatable vessels, such as tires, has a main chamber containing a volume of compressible fluid, such as air, and a pump chamber which acts to maintain the fluid in the vessel at a desired pressure. The pump chamber ha... | 01/01/2008 |
| 7284585 | Wheel assembly, wheel and wheel condition determining apparatus An air pressure inside a tire is positively adjusted to an optimum state. In a wheel assembly, a tire is attached to a wheel. A pressurizing means is provided in the wheel assembly for pressurizing air inside the tire. A depressurizing means is also provided in the ... | 10/23/2007 |
| 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 |
| 7237590 | Tire pressure maintenance device A device is provided for maintaining a desired inflation pressure within a tire mounted on a wheel of a vehicle. The device includes a microcompressor and a magnetic element. The compressor is mounted on the wheel and is in fluid communication with the atmosphere an... | 07/03/2007 |
| 7225845 | Arrangement for filling air into a rotating pneumatic tire A hose-type structure is arranged essentially between the tire and the rim, which structure is connected at the end side with the environment and, by way of a valve, with the interior of the tire. The hose-type structure fills the tire during its rotating movement, ... | 06/05/2007 |
| 7168309 | Looking device for a housing of a tire pressure detector This locking device is adapted for a snap-in system in which a male portion of a first element coacts with a female portion of a second element, resilient members acting on the male and/or female portion of the snap-in system. ... | 01/30/2007 |
| 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 |
| 7152643 | Rim wheel, and tire-rim assembly A purpose of the present invention is to provide a rim wheel and a tire rim assembly which are capable of effectively reducing cavity resonance of a tire, and accordingly, enhancing quietness and riding comfort. A plurality of cap members 20 is arranged on an... | 12/26/2006 |
| 7145445 | Vehicle tire pressure monitor A vehicle monitoring system comprises a tire pressure sensor, a transmitter coupled to the tire pressure sensor for wirelessly transmitting a signal indicative of a tire pressure; and a receiver for receiving the signal indicative of the tire pressure and for receiv... | 12/05/2006 |
| 7117910 | Air supply device, wheel, and tire unit An air supply device is provided on a rotating body having an air filling portion into which air is filled. The air supply device has a device body provided with a cylinder, and a piston mounted movably in the cylinder, the device body being joined at the middle of ... | 10/10/2006 |
| 7051585 | Supply and tire pressure sensing apparatus and method An apparatus for and a method of sensing fluid pressure of a tire and the fluid supply of a tire pressure management system maintaining same, with a central sensor and which requires the control of only two valves. The apparatus for sensing fluid pressure of a tire ... | 05/30/2006 |
| 7043960 | Self-calibrating pressure transducer A self-calibrating pressure transducer is disclosed. The device uses an embedded zirconia membrane which pumps a determined quantity of oxygen into the device. The associated pressure can be determined, and thus, the transducer pressure readings can be calibrated. T... | 05/16/2006 |
| 7032443 | Tire pressure monitoring system and method of using same A tire pressure monitoring system (10) including a magnetic actuator (11) having an air pressure transducer therein for generating a signal proportional to the interior tire air pressure. The actuator (11) operates parallel to the axle to allevi... | 04/25/2006 |
| 7019630 | Transmitter of tire condition monitoring apparatus and tire condition monitoring apparatus A transmitter in an apparatus for monitoring a condition of a tire includes a pressure sensor, a transmission circuit, a valve stem, an MR sensor, and a magnetic ring. The valve stem has magnetic pieces. The pressure sensor measures the air pressure in the interior ... | 03/28/2006 |
| 7013931 | Device for inflating vehicle tires A device is disclosed for pumping the tire of a vehicle while the vehicle is travelling. The device is mounted on the wheel axle and, apart from a hanging counterweight (226) which remains stationary, the entire device rotates with the axle and wheels. Tire p... | 03/21/2006 |
| 7013722 | System and method for determining air pressure A pressure gauge for determining air pressure of an inflatable item and a method of doing the same are provided. Embodiments of the present invention provide a source of light capable of providing more than one color of light, where each color of light within the mo... | 03/21/2006 |
| 6994136 | Wheel end tire air pump A wheel end assembly includes a self-contained air pump mechanism that maintains tire pressure at a desired level. The pump mechanism includes a piston and cylinder assembly that rotate with the tire. A linkage assembly drives the piston within the cylinder as the w... | 02/07/2006 |
| 6945104 | Attachment mechanism for a tire monitoring system A tire pressure monitoring apparatus, for mounting on a vehicle wheel that is configured to have a tire mounted thereon and that has a first opening, includes a tire monitor for sensing pressure in the tire. The tire monitor includes a housing having a spherical sur... | 09/20/2005 |
| 6943673 | Device for the automatic actuation of a tire-filling apparatus for a motor vehicle An automatic tire-filling apparatus for a motor vehicle has an electronic controller which, in response to sensors for the operating state of the vehicle, controls pneumatic valves for the tires and a compressor to enable the tire pressure to be matched to such cond... | 09/13/2005 |
| 6911902 | Pneumatically actuated mounting apparatus and method for a tire inflation gas parameter monitoring system A tire inflation gas telemetry system (30) is installed inside a tire (174) mounted to a wheel (170) and is placed within a protective housing (100) having pneumatic cylinders (116, 126) with piston rods (128, 130) that are ... | 06/28/2005 |
| 6744356 | Tire pressure maintenance and monitoring system A generator system powered by a fluid fly-wheel is disclosed that generates electric current to power a tire pressure maintenance and monitoring system. A vehicle wheel including a tire and a rim. A sealed tube containing fluid is fixed around the rim. When the rim ... | 06/01/2004 |
| 6733088 | Variable-diameter wheel apparatus for motor vehicles A wheel-and-tire apparatus having at least two coaxially mounted tires is disclosed in which the diameters of one or more of the tires in the apparatus may be adjusted to select the tire or tires which are to be in contact with the road surface. The apparatus facili... | 05/11/2004 |
| 6691754 | Electromagnetically activated on-wheel air pump The present invention couples a tire pump with the wheel rim of a vehicle. The pump is activated electromagnetically to inflate the tire as desired, e.g. when tire pressure is below a required value. The pump is arranged to draw air from the atmosphere an... | 02/17/2004 |
| 6637834 | Variable-diameter wheel apparatus for motor vehicles A wheel-and-tire apparatus having at least two coaxially mounted tires is disclosed in which the diameters of one or more of the tires in the apparatus may be adjusted to select the tire or tires which are to be in contact with the road surface. The appar... | 10/28/2003 |
| 6615888 | Variable-diameter wheel-and-tire apparatus for motor vehicles A wheel-and-tire apparatus has a pneumatic tire with two or more circumferential tread sections, the relative diameters of which may be adjusted to select the tread sections in contact with the road. The tire may have one or more air chambers. The apparat... | 09/09/2003 |
| 6601625 | Wheel with integral compressed air tank apparatus An apparatus that mounts on a rim of a vehicle wheel on which a tire may be mounted. The apparatus includes a high pressure reservoir for receiving and storing compressed air from an outside source, a first mechanical valve that permits compressed air fro... | 08/05/2003 |
| 6474383 | Automotive wheel with improved inflation system An automotive wheel rim has intermediate its ends a wall extending transversely of the axis of said rim and having formed therein a first air duct opening at one end on the outer periphery of the rim for communication with the interior of a tire mounted t... | 11/05/2002 |
| 6457502 | Dual tire pressure balance system This invention relates to a method and apparatus for maintaining equal air pressure in a pair of tires on a work machine. The invention provides a valve body with a pair of piston chambers. A piston is reciprocatably positioned within each piston chamber,... | 10/01/2002 |
| 6427739 | Coupling assembly A coupling assembly for attachment of an air line to a tire comprising, a first conduit associable with an axle about which a tire rotates, a second conduit associable with a hub of a tire, and means for compensating misalignment of the first conduit rela... | 08/06/2002 |
| 6412525 | Device for filling or deflating a tire of a vehicle, especially of a tractor A device to fill or deflate a tire of a vehicle, such as a tractor, is arranged on the wheel rim of a wheel. The device includes a housing 14 with a second connecting port 11 to connect to a first connecting port 10. An inner member 21 is supported in the... | 07/02/2002 |
| 5975174 | Rim mountable tire inflation maintenance device A device for maintaining inflation pressure within a tire interior of a tire mounted on a rotating wheel with a rim. The device includes a compressor with piston penetrateably mountable on the wheel rim or in communication with a valve stem that incorpora... | 11/02/1999 |
| 5947696 | Wheel mounted tire pump with a reciprocating piston A tire pump mounted upon a wheel includes a reciprocating piston driven by one of a pendulum assembly or flywheel.... | 09/07/1999 |
| 5928444 | Battery-powered, wheel-mounted tire pressure monitor and inflation system A battery-powered tire pressure monitor and inflation system which is mounted entirely on or within a vehicle wheel, preferably on the inner surface of a wheel cover. The entire system rotates concurrently with the vehicle wheel, thereby eliminating the n... | 07/27/1999 |
| 5891278 | Pneumatic wheels A wheel with a pneumatic tire, with the tire cavity divided into two fluid-filled reservoirs connected with a passageway (orifice, capillary, or porous material) having a required degree of flow restriction in order to generate a desired damping action wh... | 04/06/1999 |
| 5846354 | Tire pressure maintenance system A gas transfer system is provided for establishing or maintaining a predetermined gas pressure within a plenum, such as a tire. In an exemplary embodiment, the gas transfer system includes a power source, a pressure sensor, a control unit, and a gas trans... | 12/08/1998 |
| 5707215 | Tuned resonant oscillating mass inflation pump and method of extracting electrical energy therefrom Disclosed is a tuned resonant oscillating mass pump, and particularly a pump structure and assembly which can be conveniently and readily mounted inside automotive tires for the purposes of maintaining optimum tire pressure and generating of electrical po... | 01/13/1998 |
