87 results about "Tire-pressure gauge" patented technology

A tire pressure gauge for attachment to a valve stem includes a wall defining a chamber having a first port adapted to sealingly engage a valve stem, a probe being mounted in the first port so as to open a valve of a valve stem sealingly engaged by the first port, a pressure sensor in the chamber, a memory, a display physically supported on the device, a processor being operatively coupled to said display, pressure sensor and memory; and code being stored in the memory and operable by the processor to: retrieve at least one value indicative of a first threshold tire pressure from the memory, determine a pressure sensed by the pressure sensor, and, cause the display to present information indicative of a relative value of the sensed value to the first threshold tire pressure.

An audibly reporting and contemporaneous pressure-relief, automatic tire assembly is disclosed for use in interaction with preexisting valve core stems on a tire of other vessel or with conventional tire rim inflation holes. The assembly of the invention has a channeled valve body having a moving inside pin, and communication from within its channel to a sound board emission port having check-reed position groove at its other end. A pressure-sensitive arc-like mechanism is provided, fabricated to provide an inwardly closing force equivalent to a preselected pressure limit desired for a respective tire or air / fluid-pressured container. This mechanism is mounted in relation to the valve body and supported by a hollow and ported collar so that it seats and exerts closing force against an exposed portion of the check-reed which sits and can move within its position groove. When air or fluid pressure is provided to the valve body, in installed position, the back pressure from this exerts a corresponding force on the check-reed. When this back-pressure force, representing pressure in the tire / container exceeds the force exerted by the pressure-sensitive mechanism leaning on the check-reed, the check-reed moves within its groove allowing excess pressure above the limit to escape, and contemporaneously reporting an audible whistling sound generated by the sound board conditions created by escaping air in adjoining spaces of the check-reed, check-reed groove, and ported support collar in relation to the valve body.

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 value and identified tire in accordance with the processor output signal in the remote tire display mode, and for providing a visible indication of detected pressure value in the tire pressure gauge mode.

A tire pressure gauge is provided mountable to a valve stem of a tire / wheel combination or to a rim of a wheel. The tire pressure gauge includes both a proximal display viewable by an individual adjacent the tire / wheel combination and a remote indicator of tire pressure status. This remote indicator can be in the form of a warning light or in the form of a remote display with a receiver / antenna communicating with a transmitter coupled to a pressure transducer which monitors tire pressure. Most preferably, both the warning light and remote display are provided together. A valve core is associated with the tire pressure sensor for ease in adding air to the tire when needed. The pressure transducer and warning light and / or transmitter are contained together within a transmission module preferably removably coupleable to a gauge including the tire pressure sensor and the proximal display.

A tire pressure monitoring system for a motorcycle includes a tire valve stem mounted tire pressure gauge and an externally powerable remote display unit. The pressure gauge includes a pressure sensor, a wake circuit, a processor, and a first radio frequency (RF) module. The remote display unit includes a second RF module and a display. The wake circuit is adapted to activate the processor periodically at a predetermined interval of time and causes the processor to receive an output signal from the pressure sensor. The output of the pressure sensor is indicative of a tire pressure detected by the pressure sensor. The remote display unit is adapted to display the measured tire pressure value without any user input.

Disclosed is a device (10) and method for determining a temperature-corrected tire pressure. A preselected baseline temperature (26) is measured or selected. A second temperature (28) is measured using a temperature probe (22). An actual tire pressure (30) is measured (24). A programmed processor calculates and displays (14) a corrected tire pressure (32) corresponding to the baseline temperature (26) according the ideal gas law.

A multifunctional tire pressure gauge for a car functions to measure the inner temperature of the car, the voltage of the car battery and the tire pressure of the tire. Thus, when the plug is inserted into the cigarette lighter of the car, the tire pressure gauge can be used to measure the temperature of the inside of the car and the voltage of the car battery simultaneously. In addition, after the plug is removed from the cigarette lighter, the tire pressure gauge functions as a portable tire pressure gauge.

A pressure gauge is provided for monitoring pressure within a reservoir, such as air within a vehicle tire. The gauge is particularly configured to allow it to remain upon a valve stem of the tire even when the tire is in operation. A receiver of the gauge can be coupled to the valve stem. A valve core is preferably provided through which air can pass from a compressed air source, so that the tire can be filled without removing the gauge. A Bourdon tube is located within a sensor chamber and measures pressure within the reservoir. A shroud or other support surface is located adjacent a central opening of the Bourdon tube so that the Bourdon tube is supported sufficiently to avoid damage from forces including centrifugal forces encountered when the tire is spinning and the gauge is mounted on the valve stem of the tire.

A tire pressure monitoring using wireless network includes a remote command device and a valve-stem mountable tire pressure gauge. The tire pressure gauge includes a pressure sensor for detecting a pressure of a fluid in a tire and providing an output signal indicative of the detected fluid pressure, and a first radio-frequency module for transmitting data indicative of the detected fluid pressure based on the output signal of the pressure sensor. The remote command device includes a second radio-frequency module for wirelessly receiving the data transmitted by the data transmitted by the first radio frequency module, a wireless communication module for communicating via a wireless network, information based at least one data received by the second radio frequency module, and a display for displaying at least the fluid pressure detected by the pressure sensor.

A memory tire pressure gauge apparatus for use with race cars, comprising a pressure transducer, a control system and a display. The pressure transducer is for communicative connection to a tire of a race car. The control system is communicatively connected to the pressure transducer, receives tire pressure reading signals from the pressure transducer, and converts them to tire pressure display signals The control system has memory for storing a plurality of tire pressure reading signals. The display is communicatively connected to the control system, It indicates at least eight tire pressure readings simultaneously, the eight tire pressure readings corresponding to a relatively cold tire pressure reading with respect to an initial time and a relatively hot tire pressure reading with respect to a later time, after use of the tires, for each of four tires. The display further shows, simultaneously, four tire pressure change readings corresponding to changes caused by the use of each of the tires. The display receives tire pressure display signals from the control system. A method of gauging inflation pressure of a tire or other article is also disclosed.

The present invention provides an apparatus and method for characterizing tire pressure on the four tires of a conventional passenger automobile. The method uses an apparatus disposed on a key fob. The key fob includes a tire valve stem interface that is capable of taking manual measurements of tire pressure. The fob further includes a pressure transducer that translates tire pressure into electronic form where it can be displayed on an LCD screen and transmitted by RF to an automobile computer. The automobile computer further includes a program that provides for the measurement of tire pressure in a sequential method thereby assuring that the tires are at placarded pressure or more. The method includes steps of using the key fob to measure the tire pressure and transmitting the tire pressure to the computer for processing.

A tire pressure gauge includes a tubular housing, an air ventilating member dividing the housing into receiving and coupling chambers, a flexible diaphragm disposed in the receiving chamber and having a raised portion which is movable in response to an air pressure introduced into the receiving chamber through the coupling chamber, which is coupled to a tire valve, so as to move a pressure indicating member relative to a cap in order to indicate the tire pressure condition, an adjustable member adjustably disposed in the cap, and a biasing member disposed between the pressure indicating member and the adjustable member so as to correct the position of the pressure indicating member.

The invention relates to a method and system for monitoring an automobile load based on an intelligent tire pressure gauge. The method comprises the following steps: acquiring the temperature data of the gas in a tire sensed by a temperature sensor and the pressure data of the gas in the tire sensed by a pressure sensor; acquiring the exradius of a tire inner tube, the inradius of the tire inner tube, the major semi-axis when the tire is pressed, and the minor semi-axis when the tire is pressed; acquiring the initial tire pressure data of the tire and the temperature data of the gas in the tire; acquiring the changes in the volume of the tire before and after the tire is pressed; obtaining the load data of the tire according to the changes in the gas temperature before and after the tire is pressed, a Clapeyron equation and the acquired parameters; and monitoring the automobile load through the automobile load data. According to the method and the system for monitoring the automobile load based on the intelligent tire pressure gauge disclosed by the invention, a self-load measuring system is adopted to perform weighing, and has both the accuracy of static weighing and the real-time performance of dynamic weighing. On the premise of guaranteeing high accuracy, real-time load measurement is performed through the automobile sensor and some fixed parameters of the automobile, and overload or eccentric load of an automobile can be judged at any moment.

A gauge is provided for monitoring pressure of air within a tire or other gas containing chamber. A gauge includes a receiver attachable to a valve stem of the tire. A valve core is also provided on the gauge through which fill air can be directed. In this way, the gauge does not need to be removed during filling of the tire with air. A pathway extends from the valve core to the receiver within the gauge. A pressure sensor, such as a Bourdon tube, is coupled to this pathway and monitors pressure within the tire. A lower body of the gauge includes a latching element which can be manually actuated to temporarily mount the gauge to the valve stem. The latching element can be in the form of levers which rotate and act as a toggle to engage the valve stem and secure the gauge to the valve stem.

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.

A tire monitor and a tire pressure gauge for reading the data from the tire monitor are disclosed. The tire monitor includes an in-tire controller that stores a target inflation pressure representing the pressure to which the tire should be inflated when the tire is at a standard temperature. The tire monitor transmits the target inflation pressure to the external processor when the external processor is connected to the in-tire monitor over a communication link. A sensor array in the tire monitor can provide pressure and temperature readings that are stored in the monitor and used to provide a temperature-compensated fill pressure for the tire. The tire pressure gauge provides the user with a fill pressure to be used in inflating the tire. The tire pressure gauge communicates with the tire monitor and obtains pressure and temperature readings stored in the tire monitor. These reading are used to provide the temperature-compensated fill pressure.

A portable tire pressure gauge measures a value of tire pressure. The gauge may display the measured value digitally and may output the measured value aurally. The tire pressure gauge may also aurally output a verbal message warning the operator if the measured value approaches a limit value, e.g., if the measured value is below a lower limit or above an upper limit. The limit values, or range of acceptable pressure values, may be set by the user and stored in the gauge. Further, a voice selection switch may be used to selectively turn on and off the voice output warning. Further still, in some examples, the voice warning may be provided in one of multiple foreign languages using the voice selection switch.

A tire pressure gauge includes a body and a gas nozzle assembly pivotally connected with the body. The body includes an enclosure, a PCB assembly disposed in the enclosure, a battery, and a metal connection member; the enclosure includes a front panel, a first axle hole is defined in the first axle bed; the metal connection member includes a second axle bed corresponding to the first axle bed, another first axle hole is defined in the second axle bed, a first threaded embossment is formed on the second axle bed, a swing gap is defined between the first and second axle beds; and the gas nozzle assembly includes a swing head, and a screw passes through the first axle hole, second axle hole, and another first axle hole, and then connects with the first threaded embossment.

A tire pressure gauge includes a housing, a tire pressure detection unit, an air valve, and at least two limit members. The housing has a lateral side and a chamber. The tire pressure detection unit is mounted in the chamber. The air valve is mounted to the housing, extending out of the chamber from the lateral side of the housing. The at least two limit members are mounted to the lateral side of the housing and located bilaterally at the air valve, each having an end surface to which the air valve is perpendicular. Accordingly, when the tire passes through the rough roadbed to be violently shocked or impacted, the tire pressure gauge of the present invention remains in original position because of positioning efficacy of the two limit members.