Abstract: Tire pressure monitoring apparatuses, systems and method for adapting a tire pressure monitoring apparatus to be used with a plurality of valve stem configurations. Tire pressure monitoring transducers and sensors designed for use with a single valve stem design can be modified to universally accept a plurality of valve stems when coupled with the presently disclosed adapter. Use of an adapter of the presently disclosed subject matter can adapt a tire pressure monitoring apparatus such that it is suitable for use with a wide range of existing valve stems, including valve stems not originally designed to be used with the tire pressure monitoring apparatus. The adapter is suitable for use with tire pressure monitoring transducers and sensors.

Abstract: A two-port tire valve stem has a body, preferably of substantially rigid construction, with a first end portion adapted to be mounted to a wheel rim and a second end portion with at least two ports in a branched configuration, each supporting a valve. One of the valve ports may be used for inflation or deflation concurrently with the other being coupled to a pressure sensor for monitoring the air pressure in the tire. The two-port tire valve stem is adapted to be rigidly mounted to an outer of a pair of adjacent wheels, using a bracket, while its first end is adapted to be connected in fluid communication with the inner of the pair of wheels.

Abstract: An elastic member 11 positioned between an inner surface of a casing 2 and a front face of a pressure sensing portion 8 of a pressure sensor 1 reduces a possibility of liquid and foreign matters in a tire directly reaching the pressure sensing portion 8. The elastic member also increases adhesiveness between the pressure sensing portion 8 of the pressure sensor 1 and a labyrinth structure and further prevents a potting agent 9b from flowing into the sensing portion 8. Moreover, the elastic member 11 is a member constituting at least a part of the labyrinth structure, so that it does not need that a wall is provided on the pressure sensor 1 and a dedicated seal member is provided on the pressure sensing portion 8.

Abstract: A tire pressure warning device having a detection circuit is mounted to an inflation valve on every tire of a car to implement tire pressure detection. First, a microprocessing controller in the detection circuit sends a tire location ID assigned to every tire to a signal receiving circuit provided in a dashboard of the car. Then, the microprocessing controller detects a tire pressure value of the corresponding tire and uses the detected tire pressure value as a standard pressure point for the tire. Thereafter, the microprocessing controller keeps detecting the tire pressure value of the tire. When a detected new tire pressure value is higher or lower than the standard pressure point by a preset percentage, a wireless RF is transmitted to the signal receiving circuit for the latter to identify the tire with high or low tire pressure and emit an alarm while displaying the tire pressure value.

Abstract: A tire pressure detecting apparatus has a micro-controller, a detecting module and a transceiver. The detecting module is electronically connected to the micro-controller and has a tire pressure detecting unit controlled by the micro-controller to detect a tire pressure inside a tire. The transceiver is electronically connected to the micro-controller, transmits a high frequency signal corresponding to detected characteristic tire parameters from the detecting module to a monitoring system inside a car and receives an external high frequency signal sent from external tire pressure detecting apparatus for the micro-controller, with the micro-controller temporarily delaying sending of the high frequency signal until a waiting time has expired to prevent signal collision between the high frequency signal and the external high frequency signal.

Abstract: A wheel monitoring apparatus includes a measuring and evaluation unit designed to be fastened to the wheel in the region of at least one wheel nut or bolt of the wheel. The wheel monitoring apparatus includes at least one sensor for detecting a characteristic variable for a state of a wheel bearing and at least one sensor for detecting a tire pressure of a tire of the wheel.

Abstract: An apparatus to maintain optimal air pressure in a tire of a vehicle may use centrifugal force to compress air which may be delivered to the tire when the tire has low air pressure. The necessary centrifugal force to compress air may be achieved through the rotation of the tire itself. A weight may be disposed, in a chamber, near the center of rotation of a tire. The weight may be held in place with a spring or similar device. As the tire rotates, the weight may be forced outward, compressing air present in the cylinder. If the air pressure within the tire is low, the weight will compress air from inside the cylinder into the tire. The apparatus may act autonomously to add air to a low pressure tire, as opposed to simply notifying the driver that tire pressure is low.

Abstract: Provided is a tire pressure sensor (TPS) of a tire pressure monitoring system (TPMS). The TPS includes a detachable and angle-adjustable tire valve coupled to the front side of a tire pressure sensor housing. A holder bracket having a tire valve insertion hole is at the front side, and an insertion head inserted into the valve insertion hole is at an end of the tire valve. Accordingly, the angle of the tire valve is freely controlled, allowing compatible use regardless of the shape or size of wheels of cars and commercial vehicles. Thus, manufacturing costs can be greatly reduced, thereby obtaining superior competitiveness over competitors' products. Furthermore, air leakage through a wheel valve hole can be effectively prevented against high speed rotation and inertia motion caused by the high speed rotation during the driving of a vehicle.

Abstract: Provided is a tire pressure sensor valve that can be easily installed to a 2-piece or 3-piece inch-up wheel and protect a tire pressure sensor when removing a tire. The tire pressure sensor valve includes a sensor housing including a mounting space for receiving a PCB to which circuit parts including an air pressure sensor are mounted, and a coupling recess for coupling, a valve body including a head and an inner air inlet hole having an opening-closing member, the head being inserted into the coupling recess of the sensor housing and fixed to the sensor housing through a screw, and a valve adapter including a threaded end such that the end is covered with a valve cap.

Abstract: A digital tire pressure gauge has a housing having a first and a second end. A port at the first end of the housing is adapted to engage with and open a needle valve of a tire valve stem. The gauge also includes a pressure sensor and a processor in electronic communication with the pressure sensor. A bleed valve is disposed in the housing and a bleed lever is in contact engagement with the bleed valve. When the port is coupled to the tire valve stem, in a first operational mode, the bleed valve is closed and an air pressure measurement is obtained. In a second operational mode, pressing the bleed lever causes the bleed valve to open and to allow air to be bled out from the tire via the pressure gauge.

Abstract: The invention relates to a device (D) for fastening an electronic detection unit (100) for tires to a rim (J), this unit being of the type which is fastened to the valve (200), which valve comprises a part (210) outside the rim and a part (220) inside the rim, said device consisting of a connection module (300) connected on the one hand to the inner part (220) of the valve (200) and on the other hand to a preformed receptacle (400) for accommodating said electronic unit (100), distinguished in that said receptacle (400, 400a, 400b) forms an accommodation volume which is open on the tire tread side. Applications: detection unit fastened to the vehicle wheels.

Abstract: Disclosed is a device for clamping an electronic pressure and/or temperature measurement housing (100) onto a rim (200) inside of a tire, characterized in that it consists of at least one cable (300) which, making at least one turn around the rim (200), and urging the housing (100) against the surface (210) of the rim (200), forms a resilient connection allowing axial movement of the housing (100) on the rim (200) and thereby preventing the housing (100) from bearing the stress of the tire during the mounting and removal stages. Also disclosed is a housing adapted to such a device. Uses: attachment of a sensor onto the wheel of a vehicle.

Abstract: A tire pressure-monitoring device (TPMD) directly mounted onto an air-pumping inlet-stem on a tire. The TPMD includes a light emitter connected to a battery through an electrical connecting loop wherein the electrical connecting loop comprising a plurality of electrical conductive structural components and at least two of the structural components are physically separated in a normal tire pressure condition and connected in a low pressure tire pressure condition for providing power to the light emitter for emitting a low tire pressure warning light.

Abstract: Provided is a tire pressure monitoring system including: a tire pressure measurement sensor including a pressure detection means for detecting an air pressure in a tire, a connection pipe for connecting an air injection valve of the tire to the pressure detection means, a fixing means for fixing the connection pipe to the air injection valve of the tire, and an air injection means connected to the pressure detection means to inject air into the tire through the pressure detection means; and a display for showing the air pressure of each tire of a vehicle to a driver, wherein the tire pressure measurement sensor is mounted in the air injection valve of the tire and transmits a pressure value of the tire to the display through wireless communication.

Abstract: A pneumatic tire pressure indication system comprising a pneumatic pressure indicator strip containing a predetermined quantity of alcohol or glycol based low viscosity fluid that can be produced in a number of different colors. When tire pressure is at a predetermined amount (below manufacturer's specifications), the tire pressure indicator strip has a circular cross-section. At proper pressure, the strip becomes elliptical and the colored fluid is seen through the transparent side-wall of the pressure indicating strip touching the tire pressure indicator strip.

Abstract: There is provided a vehicle abnormality detection method detecting an abnormal state in which a high temperature occurs due to maladjustment of a vehicle bearing mechanism section or vehicle brake mechanism section, and a device thereof and a sensor unit thereof. By use of the sensor unit 100 mounted in a rim 31, an air temperature within a tire 2 is sensed as a first temperature and a temperature (second temperature) of the rim 31 is sensed as a temperature related to at least one of a temperature of the vehicle bearing mechanism section and a temperature of the vehicle brake mechanism section 40. Then a temperature difference between the first and second temperatures is calculated and when the temperature difference is a predetermined value or more, it is determined that an abnormality has occurred in the vehicle bearing mechanism section or vehicle brake mechanism section 40. The abnormality is thus detected.

Abstract: A digital tire pressure gauge has a housing having a first and a second end. A port at the first end of the housing is adapted to engage with and open a needle valve of a tire valve stem. The gauge also includes a pressure sensor and a processor in electronic communication with the pressure sensor. A bleed valve is disposed in the housing and a bleed lever is in contact engagement with the bleed valve. When the port is coupled to the tire valve stem, in a first operational mode, the bleed valve is closed and an air pressure measurement is obtained. In a second operational mode, pressing the bleed lever causes the bleed valve to open and to allow air to be bled out from the tire via the pressure gauge.

Abstract: A tire valve with an electronic box 100 of tire pressure monitoring system for automobile comprises a valve metal body 1 and an elastic body 2 around the metal body 1. The metal body 1 comprises an air introducing and discharging hole 4. The metal body 1 has an external threaded stem 5 for connecting with the electronic box 100 of tire pressure monitoring system for automobile at the end. The air introducing and discharging hole 4 is set above the external threaded stem 5. The valve metal body 1 can be mounted on the electronic box 100 of tire pressure monitoring system for automobile through the external thread, therefore the connection strength between the electronic box 100 and the valve can be reinforced conveniently.

Abstract: A tire valve for a vehicle comprises a metal housing (1) and an elastic housing (2) around the metal housing (1). The metal housing (1) has a cylindrical portion (13) corresponding to a rim opening (201). The metal housing (1) has an annular flange (6) above the cylindrical portion (13), and has an annular lower flange (12) under the cylindrical portion (13). The elastic housing (2) has a cylindrical elastic portion (21) around cylindrical portion (13), and has a tapered portion (22) around the annular flange (6). The lower end of the elastic housing (2) is placed around the annular lower flange (12).

Abstract: A tire monitoring system and associated method is disclosed. The tire monitoring system includes a plurality of tire sensor modules, employing contactless sensors, configured to transmit tire data at a predetermined time interval. The system also includes a central control unit that is configured to receive the tire data from the tire sensor modules, and is further configured with an external control unit that can communicate with the tire sensor modules, the central control units and outside sources.

Abstract: A valve for a tire pressure monitoring system in which the valve acts a coaxial conductor to transmit a signal to a receiver presented. A valve stem electrically isolated from a valve pin form the coaxial conductor. In a tire pressure monitoring system, a tire pressure measurement module is positioned inside a tire. In one embodiment, a conductive radiating structure is electrically connected or coupled to the valve pin to receive the tire pressure information signal and transmit it to a receiver. The above configuration further permits a rechargeable battery in the tire pressure measurement module to be recharged via the tire valve. The valve pin and valve stem, being electrically isolated from one another, are used as recharging paths for the battery.

Abstract: A tire pressure gauge with a valve cap wrench is disclosed. A bore at one end of the tire pressure gauge may be used to grip and remove a valve cap mounted on a valve stem of a tire. A port at the other end of the tire pressure gauge may be used to measure air pressure in a tire. The measured air pressure may be displayed on a display on the tire pressure gauge. The cap wrench may have a collet to hold a valve cap and a switch to tighten and loosen grip on a valve cap. The cap wrench may also have a plunger to push a valve cap out of the tire pressure gauge.

Abstract: A wheel having a controlled pressure includes a rim associated with a tank adapted to be filled with a fluid to a first pressure; a tire mounted on the rim and having an inner volume inflated to an operating pressure at a reference temperature, the operating pressure being lower than the first pressure; and at least one valve assembly adapted to establish a communication between the tank, the inner volume of the tire and the external environment. The valve assembly includes a command valve, an exhaust valve and a compensation valve operatively associated with each other. The command valve controls communication between the tank and the inner volume of the tire. The exhaust valve is connected to the external environment, to the inner volume, to the command valve and to the compensation valve. The compensation valve is connected to the exhaust valve and the command valve.

Abstract: A tire pressure control system includes a tire valve and wheel electronics including a pressure measuring device and a transmission device in a housing, wherein the housing has two base elements on a bottom for attaching the same to a rim well of a wheel, and a contact surface seated on a valve spud of the tire valve in the mounted state. The surface has an elongated hole through which the tire valve projects in the mounted state. The invention provides that the contact surface can be linearly displaced in the direction of the elongated hole on the valve spud during installation.

Abstract: A combined tire pressure gauge and remote tire pressure display includes a port adapted to couple to a vehicle tire valve stem and to open a valve in the valve stem; a chamber in physical communication with the port; a local pressure transducer in the chamber for detecting a pressure of a fluid within the vehicle tire and providing an output signal representative of the detected pressure; a wireless receiver for receiving a signal identifying a tire pressure sensor and having a detected tire pressure and for providing an output signal; a processor for receiving the output signal from the pressure transducer and the output signal from the wireless receiver, and for providing a processor output signal indicative of an identified tire and a value of the detected pressure, in a remote tire display mode, and for providing a processor output signal indicative of a detected tire pressure, in a tire pressure gauge mode; and a display coupled to the processor for providing a visible indication of detected pressure val

Abstract: An electronic unit for measuring operating parameters of a vehicle wheel, including an electronic module (1) and an inflation valve (2) comprising a body (6, 7) designed to extend through an orifice arranged in a wheel rim, and an assembly head (4) separated from the body by a shoulder forming a face for locking the inflation valve against the rim. The electronic module (1) includes an outer wall (13, 14) defining a lateral housing for the assembly head (4) of the inflation valve (2), delimited by a metal plate (11) made in one piece with the electronic module, for pressing of the locking face of the assembly head, and furnished with a notch for the body (6, 7) of the inflation valve to pass through.

Abstract: A tire-pressure control apparatus includes an air pump driven by a rotating wheel to supply compressed air to a tire air chamber, a mechanical control valve that permits and prohibits supply of compressed air from the air pump to the tire air chamber, a valve-state detection sensor that detects the state of the control valve, a wheel speed sensor that detects rotational speed of the wheel, and an electric control unit (ECU). The ECU calculates a quantity of compressed air supplied from the air pump to the tire air chamber during a permission-state retention time, during which the control valve is in the permission state, and calculates an average leaked air quantity per unit time in a single cycle starting when the control valve enters a prohibition state and ending when the control valve again enters the prohibition state after entering the permission state.

Abstract: A valve stem assembly for clamping tire pressure detector has a valve stem and a fastener. The valve stem has an outer section and an inner section. The inner section has a distal end, an outlet hole, a sidewall and a side fixing hole. The distal end has a domical surface. The outlet hole is centrally formed through the domical surface. The side fixing hole is formed in the inner section, is oblique to the outlet hole and communicates with the outlet hole inside the inner section. The fastener corresponds to the outlet hole and the side fixing hole and is selectively and detachably and selectively screwed into the outlet hole or the side fixing hole to hold a tire pressure detector on the valve stem assembly.

Abstract: A runout gauge includes a stand (such as a tripod), and a gauge bar pivotally mounted on the stand. The gauge bar includes a wheel on its upper end positioned above the pivot for rollingly engaging an outer surface of a vehicle tire, and further includes a pointer located a greater second distance below the pivot. By this arrangement, movement of the wheel on the tire due to runout causes the pointer to move along an amplified path having a length greater than the movement of the wheel, thus making it easier to read. The illustrated stand includes indicia for measuring movement of the pointer, and also includes gauge slides on a frame component that abut the pointer in a manner showing an extent of the pointer's movement, which relates to the runout on the tire.

Abstract: The invention relates to a device (D) for fastening an electronic detection unit (100) for tyres to a rim (J), this unit being of the type which is fastened to the valve (200), which valve comprises a part (210) outside the rim and a part (220) inside the rim, said device consisting of a connection module (300) connected on the one hand to the inner part (220) of the valve (200) and on the other hand to a preformed receptacle (400) for accommodating said electronic unit (100), distinguished in that said receptacle (400, 400a, 400b) forms an accommodation volume which is open on the tyre tread side. Applications: detection unit fastened to the vehicle wheels.

Abstract: A device for measuring tire pressure in a pneumatic tire of a motor vehicle by means of a sensor on the rim well (8) of a rim (3) which accommodates a tire valve (2) for the pneumatic tire and a receiver outside of the pneumatic tire being assigned to the sensor, wherein an electronics housing or signal housing (1) assigned to the rim well (8) is connected to the tire valve (2), said housing containing transmission electronics as the tire pressure sensor, and is connected to the tire valve (2) by a fastening element (6) substantially in the region of the valve base part (4).

Abstract: Provided is a tire pressure sensor valve that can be easily installed to a 2-piece or 3-piece inch-up wheel and protect a tire pressure sensor when removing a tire. The tire pressure sensor valve includes a sensor housing including a mounting space for receiving a PCB to which circuit parts including an air pressure sensor are mounted, and a coupling recess for coupling, a valve body including a head and an inner air inlet hole having an opening-closing member, the head being inserted into the coupling recess of the sensor housing and fixed to the sensor housing through a screw, and a valve adapter including a threaded end such that the end is covered with a valve cap.

Abstract: A digital tire pressure gauge has a housing having a first and a second end. A port at the first end of the housing is adapted to engage with and open a needle valve of a tire valve stem. The gauge also includes a pressure sensor and a processor in electronic communication with the pressure sensor. A bleed valve is disposed in the housing and a bleed lever is in contact engagement with the bleed valve. When the port is coupled to the tire valve stem, in a first operational mode, the bleed valve is closed and an air pressure measurement is obtained. In a second operational mode, pressing the bleed lever causes the bleed valve to open and to allow air to be bled out from the tire via the pressure gauge.

Abstract: This invention provides a valve stem (21) for a tyre. The valve stem (21) comprises at least one electrical circuit for measuring pressure within the tyre. The circuit comprises a capacitive pressure sensor (5) and an inductive coil (6). The inductive coil (6) is coiled around the valve stem (21).

Abstract: An air pressure sensor (2) for a vehicle tire warning system includes a tubular housing (21) defining a chamber (218), an air pressure actuating device seated in the chamber and being moveable back and forth in the chamber in response to air pressure change in the vehicle tire, and a switch device to electrically connect a high air pressure warning circuit or a low air pressure warning circuit under the drive of the air pressure actuating device. The chamber of the tubular housing is communicated to the atmosphere via a connecting pipe (29).

Abstract: A tire pressure monitoring assembly includes a sensor secured to a valve stem secured within a wheel rim. The sensor is secured to the valve stem with a push on clip. The valve stem includes two pieces that provide for installation from one side of the wheel rim. The valve stem is separable to provide for the elongation of the rubber housing. Elongation of the housing causes a reduction in an outer diameter that provides for insertion into the opening of the wheel rim.

Abstract: A valve-integrated transponder includes an air valve and a casing that are integrated with each other, and is disposed within a tire. The air valve is press-fitted to a valve hole in a wheel rim. The casing houses a substrate having a detecting element mounted thereon, an inverse F antenna element, a supporting member, and the like, and is provided with a partition-like reinforcement rib. The reinforcement rib extends along an extension of an axis of the air valve and is loosely fitted in a recessed slot of the supporting member. The antenna element supported by the supporting member has a substantially line symmetrical shape where a pair of radiation conductors symmetrically extend away from each other.

Abstract: A valve-integrated transponder includes an air valve and a casing that are integrated with each other, and is disposed within a tire. The casing houses a substrate having a detecting element mounted thereon, an inverse F antenna element, and a supporting member. The antenna element has a substantially line symmetrical shape where a pair of radiation conductors extend away from each other. A longitudinal direction of the substrate is substantially perpendicular to an axial direction of the air valve, and a lateral direction of the substrate is inclined relative to a well of a wheel rim. The two radiation conductors of the antenna element disposed on the substrate are inclined at a predetermined angle with respect to the substrate, so as to be disposed substantially in parallel to the well that extends at the inner side of the transponder as viewed in the radial direction of the tire.

Abstract: A tire pressure gauge with a valve cap wrench is disclosed. A bore at one end of the tire pressure gauge may be used to grip and remove a valve cap mounted on a valve stem of a tire. A port at the other end of the tire pressure gauge may be used to measure air pressure in a tire. The measured air pressure may be displayed on a display on the pencil gauge. The cap wrench may have a collet to hold a valve cap and a switch to tighten and loosen grip on a valve cap. The cap wrench may also have a plunger to push a valve cap out of the pencil gauge.

Abstract: A tire pressure monitoring system sensor includes a body provided with an air inlet that provides fluid communication between the interior of the body and the interior of a tire. A pressure plate slides within the interior of the body by pressure in the tire, in a direction away from the air inlet. A spring biases the pressure plate toward the air inlet. Several sensors are attached to the body, each configured to generate a signal indicative of proximity of the pressure plate. The sensor may further include an air supply valve to supply air to the tire, connected to the body. The body may define an air supply passage through which the air supplied from the air supply valve is supplied to the tire through the air inlet. Three sensors may be provided: one indicative of excessive pressure, one indicative of appropriate pressure, and one indicative of insufficient pressure.

Abstract: A pressure transducer, particularly adapted to measure the pressure in a tire and to enable the tire to be filled includes a first housing, having an internal hollow. Positioned in the hollow of the first housing is a second housing, also having an internal hollow. The second housing is supported within the first housing so that a passageway for airflow exists between the housings. The second housing has a pressure port for monitoring the pressure of a tire. The first housing has an inlet port for receiving a source of pressure. The inlet port contains a valve which is selectively operated. The valve, when operated, permits air to flow into the hollow of the first housing and to flow about the periphery of the second housing to enter the pressure port associated with the second housing. The pressure port may, as indicated, be associated with a tire and the second housing contains a pressure sensing device which monitors the pressure in the tire via the pressure port.

Abstract: A SAW based tire pressure sensor assembly comprising a body having a tubular stud 1 formed on an end thereof which is engageable in an inflation tube formed in a tire inflation valve 3 so as to fasten the body to the valve 3. A through passage extends through the stud 1 into said body and is in fluid communication with the atmosphere surrounding the assembly by means of apertures 2 in the sides of the body, thereby providing a fluid coupling between an inflation duct of the inflation valve 3 and the atmosphere surrounding the body. A SAW based pressure sensor is mounted within said body so as to be in fluid communication with the atmosphere surrounding the body, and an antenna 4 is connected to the sensor to enable remote interaction therewith. A grounding plate 5 connected to the antenna is sandwiched between the assembly and has arms which engage against the inner surface of the wheel so as to enhance the sensor antenna earth.

Abstract: A valve stem with a connecting cap for a tire pressure detector has a body, a connecting cap and a fastener. The body is tubular, is a valve stem applied for truck and has an outer section, an inner section and a fixing nut. The inner section is integrally formed coaxially on the outer section and has an outlet hole being formed thereon. The fixing nut is movably mounted on the outer section. The connecting cap is cylinder, has an outer end and a hole and is detachably mounted on the inner section. The hole is coaxially and longitudinally formed on the connecting cap. The fastener corresponds to the hole and the outlet hole and holds a wireless pressure detector on the outer end of the connecting cap.

Abstract: The invention relates to an electronic module for measuring operating parameters of a vehicle wheel, comprising an electronic unit (1), an inflation valve (2) of the “snap-in” type made up of a valve body (3) made of an elastomeric material pierced with an axial bore housing a hollow tubular core (15), and means for securing the electronic unit (1) and the inflation valve (2) together. According to the invention, the means of securing the electronic unit (1) and the inflation valve (2) to one another comprise, on the one hand, a ring (20) secured to the electronic unit (1) and designed to be slidably mounted around the portion of the tubular core (15) that extends in the continuation of the valve body (3 ), in a position of the electronic unit (1 ) in which the latter extends in the direct continuation of the inflation valve (2), and, on the other hand, means (13, 25, 26) of assembling the ring (20) of the electronic unit (1) on the valve body (3).

Abstract: An inflation and pressure measurement system having over pressure protection for an attached pressure gauge. A plunger is placed within an internal cavity of a valve body where the plunger can move axially into a first and a second position. In the first position there is gaseous communication between an inflation valve and an operating port. While in the first position, a gauge port may release gas through a wiper seal. In the second position there is gaseous communication between the operating port and the gauge port. The plunger may be biased in the second position. The first and second positions may be located by a locating groove in the plunger and a locating structure passing through the valve body and contacting the locating groove. While the inflatable device can be inflated using high pressures, the pressure gauge is protected from over pressure damage. Some embodiments can inflate and monitor the pressure of multiple inflatable devices from a single position.

Abstract: A valve stem with an adjustable tire pressure detector has a tire pressure detector, a valve stem body, a conducting member and a fastening assembly. The tire pressure detector has a guiding slot, a concave surface and a convex surface. The guiding slot is formed through the tire pressure detector and forms two openings. The concave surface and the convex surface are formed on the tire pressure detector respectively adjacent to the openings. The valve stem body is moveably mounted through the guiding slot and has a head being moveably mounted on the concave surface. The conducting member is mounted on the concave surface or the convex surface and is electrically contacted to the valve stem body and the tire pressure detector. The fastening assembly mounts the valve stem body on a rim securely.

Abstract: A tire pressure detector without the risk of causing a leaky tire includes a base having a forward projected and externally threaded annular wall and an annular limit wall to define an annular groove therebetween; a mating cover having an internally threaded annular wall for screwing to the externally threaded annular wall of the base with a free end of the annular wall received in the annular groove to press against an airtight seal ring set in the annular groove, such that an airtight space is defined in and between the assembled cover and base; a tire pressure detecting assembly being receiving in the airtight space; and a valve control assembly being mounted on the base to locate between the base and the mating cover. The annular limit wall prevents the cover from moving and deforming at the screwed portion to ensure good air-tightness between the cover and the base.

Abstract: The present invention is a valve for use in a central tire inflation system including a casing securable to the rim of a vehicle in communication with the tire that houses a main body connectable to a pressurized fluid supply of the central tire inflation system, and a valve member moveable within the main body to control the flow of air through the valve. The valve can be mounted flush on the exterior surface of the rim or in a recessed position within the rim, and can be connected to a manifold that is able to control the flow of pressurized fluid from the central tire inflation system to each valve and tire connected to the valve. The operation of the manifold and pressurized fluid supply can be controlled utilizing a controller operably connected to the manifold and fluid supply.

Abstract: A tire pressure gauge with a valve cap wrench is disclosed. A bore at one end of the tire pressure gauge may be used to grip and remove a valve cap mounted on a valve stem of a tire. A port at the other end of the tire pressure gauge may be used to measure air pressure in a tire. The measured air pressure may be displayed on a display on the pencil gauge. The cap wrench may have a collet to hold a valve cap and a switch to tighten and loosen grip on a valve cap. The cap wrench may also have a plunger to push a valve cap out of the pencil gauge.

Abstract: A valve stem installation system (10) includes a conveyor (24) for moving wheel (14). A controller (60) is adaptable for segmenting the wheel (14) into a plurality of sections (S1-S11). A detector (70) identifies and signals a general location of the aperture (12) to the controller (60) to identify a target section (S11) transmitted to the controller (60) by a first signal. A robotic manipulator (110, 112) is operably connected to the controller (60) and adaptable for inserting the valve stem into the aperture (12). A sensor (153) is connected to the robotic manipulator (110, 112) and is adaptable for visually identifying the target section (S11) and transmitting the general location of the aperture (12) within the target section by a second signal. The controller (60) generates a target signal transmitted to the robotic manipulator (110, 112) to increase the speed and accuracy of mating the valve stem into the aperture (12) in response to the target signal.