Abstract: An inflation device includes a first section having a threaded recess for receiving a valve of an object to be inflated, and a flange extends radially inward from an inner periphery of the first section. A tunnel is defined through the flange and an insertion of a second section extends through a rear end of the first section and is movably engaged with the tunnel. An end member with a path is connected to the insertion and a passage is defined through the second section. The end member is movably inserted in the threaded recess to push a seal pin of the valve in the threaded recess while the valve is air-tightly received in the threaded recess.

Abstract: A process for filling N2 gas into a tire assembled onto a rim to hold a recommended internal pressure comprises discharging air inside the tire prior to the filling of N2 gas to render the inside of the tire into a state lower than atmospheric pressure and filling N2 gas into such a tire. An apparatus for carrying out the above process comprises a single inlet path, at least two outlet paths and a membrane module for separating air introduced through the inlet path into O2 gas and N2 gas and feeding these gases into respective outlet paths, wherein an outlet path for feeding N2 gas in the outlet paths is connected at its top to a valve for inflating a tire assembled onto a rim under an internal pressure and a discharge path for discharging air inside the tire prior to the filling of N2 gas is provided on the way of such an outlet path.

Abstract: 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 housing 14. The inner member 21 and housing 14 are both rotatable relative towards each other. The inner member 21 has a third connecting port 29 to connect to a connection 31, 32, which leads to the pressure supply. A control valve 9 is provided and coupled with the second connecting port. An annular chamber 25 is connected to the second connecting port 11 and the third connecting port 29. The annular chamber 25 is formed between the housing and the inner member 21. Two seals 26 are provided between the housing 14 and the inner member 21. The seal 26 laterally closes off the annular chamber 25.

Abstract: A repair device and method comprising a canister having an internal cavity, an input connecting valve, an output connecting valve, and an output hose for purposes of inflating a pneumatic device such as a flat tire. The utility of this device is as a readily available bridge to connect a deflated tire with any available air source such as an inflated tire. A sealing mixture may be stored in the internal cavity of the canister for injection into a leaking or flat tire to effect repairs by sealing any leaks. When attached between an inflated tire and a flat tire, the sealing mixture is injected into the flat tire by the pressure of the inflated tire and the flat tire may then be inflated.

Abstract: A unit (1) for deflating and/or inflating tires (42-49) has a regulating device (2) that has an air input (6) for connection to a compressed-air source (65) and at least one air output (8, 9) for connection to air-pressure lines (10, 11, 16, 17, 18-25). The regulating device (2) has a regulating member (67) with which a specific working pressure is implemented in the air-pressure lines (10, 11, 16, 17, 18-25) after connection to the tires. (42-49). The regulating member (67) is connected to a manually actuable adjusting device (57) with which different predetermined working pressures are established. The adjusting device (57) has at least two manually actuable switching members (59, 60, 61), each of which is associated with one of the different predetermined working pressures. Actuation of a switching member allows the regulating member (67) to be respectively adjusted to the respective predetermined working pressure associated with the switching member (59, 60, 61).

Abstract: A vehicle Central Tire Inflation Systems (CTIS). Specifically, the invention includes, but is not limited to, a quick-release fitting in fluid communication with the CTIS and attached to an air supply hose which terminates in another threadable or quick-release fitting for attachment to the wheel inflation stem. The device allows pressurized air to be supplied to the tires from the CTIS, but quickly disconnected from a tire in the event of a tire casualty or need to change wheel rims.

Abstract: A device for repairing a tire fault by injecting repair liquid into the faulty tire, said liquid being present in a compressible liquid storage volume (100). Said volume (100) is sealed in such a way that it is watertight at at least one first sealing point (60) to be opened and is located in a pressurized container (56). Said pressurized container is subjected to the pressure of a pressurized gas from a pressurized gas source (28) in a compression chamber which becomes larger as it is affected by the pressurized gas. When the first sealing point (60) is opened, the volume (100) delivers repair liquid to the tire (12) through the opened first sealing point (60) be extracted from the volume.

Abstract: A process for filling N2 gas into a tire assembled onto a rim to hold a recommended internal pressure comprises discharging air inside the tire prior to the filling of N2 gas to render the inside of the tire into a state lower than atmospheric pressure and filling N2 gas into such a tire. An apparatus for carrying out the above process comprises a single inlet path, at least two outlet paths and a membrane module for separating air introduced through the inlet path into O2 gas and N2 gas and feeding these gases into respective outlet paths, wherein an outlet path for feeding N2 gas in the outlet paths is connected at its top to a valve for inflating a tire assembled onto a rim under an internal pressure and a discharge path for discharging air inside the tire prior to the filling of N2 gas is provided on the way of such an outlet path.

Abstract: An inflation nozzle has a cylindrical receiving cell which is provided with an air inlet, an open end, and an engagement port for engaging the air valve of an inflatable object. The receiving cell contains a first elastic annular block, a seat block, a second elastic annular block, and a press block. A handle is pivoted to the open end for pressing the press block. The seat block has a through hole in communication with a through hole of the second elastic annular block. The seat block is provided with a rotary member which has a curved portion and a notch. A coil spring enables the curved portion and the notch to remain at an angle at which the curved portion and the notch face the engagement port. When the engagement port is engaged with an air valve of the U.S. specification, the valve tube of the air valve is inserted into the notch to arrest the rotary member such that the valve bar of the air valve is pressed by the curved portion to allow the passage of air.

Abstract: An automatic tire inflation system with a booster pump actuated by the compressed air supply on the truck-trailer to pump the air pressure to a higher output pressure to supply air to tires that may require a higher inflation pressure than the truck-trailer system provides. In addition, a surge protection valve and a pressure relief valve are provided in the system to provide proper operation of the system.

Abstract: A carbon-dioxide pump for tires which comprises a dispensing head which is provided with a nosepiece for coupling to the tire valve which is connected to a threaded hole for the hermetic fixing of a bottle of carbon dioxide and to a sliding hole for a needle-equipped pin for piercing the membrane of the bottle which is rigidly coupled to a flow control element of the frustum-shaped type which can be actuated manually so as to rotate in order to hermetically close the bottle after piercing the membrane, a shell for containing the bottle which is screwed hermetically onto the head and on which a handgrip is slidingly fitted with the interposition of guiding and sliding sealing elements which are suitable to provide a short manual pump in which the air compressed by the movement of the handgrip flows between the shell and the bottle and is fed to the nosepiece through a nozzle which is closed by a valve system provided in the head.

Abstract: Inflating cylinder with both inflating and air sucking effects, including: a cylinder body; a piston disposed in the cylinder body; a piston stem driven by a user's hand for driving the piston; a first one-way valve disposed at front end of the cylinder body, permitting the air to only flow from the interior of the cylinder body to outer side; a second one-way valve disposed at front end of the cylinder body, permitting the air to only flow from outer side into the cylinder body; and at least one air guiding member formed with an axial air way for air flow to flow therethrough. The air guiding member is detachably connected with the front end of the cylinder body and communicates with one of the one-way valves.

Abstract: A process for filling N2 gas into a tire assembled onto a rim to hold a recommended internal pressure comprises discharging air inside the tire prior to the filling of N2 gas to render the inside of the tire into a state lower than atmospheric pressure and filling N2 gas into such a tire. An apparatus for carrying out the above process comprises a single inlet path, at least two outlet paths and a membrane module for separating air introduced through the inlet path into O2 gas and N2 gas and feeding these gases into respective outlet paths, wherein an outlet path for feeding N2 gas in the outlet paths is connected at its top to a valve for inflating a tire assembled onto a rim under an internal pressure and a discharge path for discharging air inside the tire prior to the filling of N2 gas is provided on the way of such an outlet path.

Abstract: An air pump comprises a head member, an inner tube, a check valve, and one-way air valve. The head member is provided therein with a control valve which is provided at one end thereof with an air nozzle and at other end thereof with a press rod for controlling the control valve. The head member is provided in one side thereof with a connection portion which is in turn provided with a channel and a guide cell. The inner tube is connected with the connection portion and is provided therein with a receiving space in communication with the channel and the guide cell. The receiving space is in communication with the atmospheric air via an air duct in which the check valve is disposed. The inner tube is fitted into an outer tube such that a compressible space is formed therebetween, and that the outer tube moves in relation to the inner tube.

Abstract: Electronic air-supplying and pressure-equalizer system for tires, to be preferably installed at petrol stations, service areas, mechanical assistance points on roads or the like, similar to those comprising a compression unit, which, either through a deposit or directly, supplies a gas, preferably compressed air, to an inflating unit, which has several inflating conduits having, at their free ends, mechanisms for coupling the inflating conduits to a tire valve, as well as a structure for supporting the conduits, which is provided with a working unit or machine (1), including a housing (2), a metal framework (11), an electronic measuring instrument, and a pneumatic equipment (35) a propeller or compressor equipment, having an inner or outer compressing unit, a basis or supporting unit and an air-delivering unit (5).

Abstract: A leak detection dye introduction system for introducing a leak detection dye composition into a climate control system includes an adaptor having an outlet and an inlet connected by a flow path to the outlet, and a valve assembly located between the inlet and the outlet. The outlet is connectable to a transfer unit having an actuating valve and the inlet is connectable to a housing.

Abstract: A tire inflation apparatus and method involves first evacuating a seated pneumatic tire using a vacuum pump and then inflating the tire with a dried inert gas under pressure without allowing any ambient air to reenter the evacuated tire. The apparatus includes a three way valve which is connected by a first conduit to a tank of pressurized inert gas and by a second conduit to the vacuum pump. A hose having a tire valve chuck connected to a distal end is connected at the opposite end from the chuck to the three way valve. The three way valve selectively and alternatively flow connects the hose to the tank of pressurized gas or the vacuum pump through the first or second conduits respectively. The hose is initially connected to the vacuum pump to evacuate the tire, and then to the tank of pressurized gas to inflate the tire. A heater on the first conduit heats the cooled gas exiting the tank to raise the temperature of the pressurized gas delivered to the tire at least to the ambient temperature.

Abstract: A method of inflating a tire and a bag fitted over a tire during inflation. The bag is constructed so as to substantially envelope an exposed outer surface of a tire during inflation, whereby in the event of the tire exploding the bag contains the debris of the explosion, and allows the compressed air from the tire to escape.

Abstract: A central tire inflation system for a work vehicle is presented. The central tire inflation system controls the inflation pressure in the tires of a work vehicle. The central tire inflation system may be placed in an automatic or manual mode. In the automatic mode, the system makes changes to the tire pressures according to the tire parameters, terrain conditions, and the operating loads placed on the tires.

Abstract: A sealing valve for controlling the flow of fluid through a passage defined by the interior surface of a tubular casing comprises a valve body having a longitudinal axis and a longitudinal bore therethrough. The valve body is formed for releasable connection to the tubular casing when the valve body is inserted longitudinally into the passage of the tubular casing. A valve seat is disposed on the valve body. A sealing assembly comprises a sealing device adapted for sealing engagement with the valve seat. The sealing device is movable with respect to the valve seat from a closed sealing position in which the sealing device sealingly engages the valve seat to block fluid flow through the bore in the valve body to an open position in which the sealing device is spaced from the valve seat to permit fluid flow through the bore.

Abstract: A tire inflating method and apparatus, allowing inflation of different sized tires without changing over a tire inflation device. The tire inflation device has two chambers, an inner chamber and an outer chamber. The inner chamber is within the outer chamber and extends downwardly when a smaller sized rim is being used. The tire inflation device has a linear transducer, with a magnetic ring, that determines the height of the tire inflation head and knows when to shut off inflation. A method of inflating tires without changing over an inflation device is also provided. The method includes the steps of photo switches detecting the size of the rim being used, an inflation head adjusting to a corresponding size of the tire rim, and the inflation head inflating the tire and rim to a specified pressure.

Abstract: The invention provides apparatus and methods for injecting fluid such as sealing and balancing fluid into tires while they are inflated and mounted on wheels and especially for two tires mounted on a dual rim wheel. The invention overcomes problems of limited access to the valve stems and includes tools for bending the stem in place to facilitate application of the apparatus.

Abstract: An apparatus is disclosed for introducing a free-flowing balancing material into a tire through a tire valve stem. The apparatus comprises a container for confining a predefined amount of free-flowing balancing material, and a flow path for pressurized air which extends from the source of the pressurized air to an air inlet, from the air inlet to a mixing chamber in communication with the container through an opening, and from the mixing chamber to an air outlet. The flow path has a pressure regulator therein, a venturi nozzle within the mixing chamber to accelerate the air flow and lower the air pressure within the mixing chamber to draw the free-flowing balancing material from the container into the mixing chamber; and a chuck for introducing the mixture of free-flowing balancing material and pressurized air from the air outlet and into a tire valve stem.

Abstract: A tire inflation apparatus and method involves first evacuating a seated pneumatic tire via a vacuum pump and then inflating the tire with a purified, dried gas under pressure, such as pressurized nitrogen, without allowing any ambient air to reenter the evacuated tire. The apparatus includes a three way valve which attaches to the source of compressed dry gas, to the tire valve, and to the vacuum pump with a micron vacuum gauge provided for monitoring the state of vacuum within the evacuated tire.

Abstract: Apparatus injects fluid such as sealing and balancing fluid into inflated tires, even two tires on a dual rim wheel, while on a vehicle. It seals to the valve stem so that the valve core can be unscrewed and retracted under pressure, providing an unobstructed fluid injection path before replacing the core without significant pressure loss. Tools for bending tire stems in situ facilitate apparatus installation.

Abstract: An inflator device uses a compressed gas cylinder or cartridge for inflating a tire or the like having an inflator valve. It has an internally screwthreaded supply bore adapted to have screwed into it the neck of the cylinder or the cartridge closed by a capsule and at the bottom of which is provided a perforator surrounded by a supply seal. The supply bore communicates via an axial hole with a distribution bore, the communication being controlled by a selectively operated valve carried by a distributor moveable axially. The device further includes a cavity adapted to receive in sealed fashion the inflator valve of the tire or the like and communicating with the distribution bore. The seal is assured by a valve seal which has two coaxial circular parts joined by a transverse annular part. The valve seal is placed in the cavity with the annular part facing outwards and held in the cavity by a cap provided with a passage for the valve of the tire or the like.

Abstract: An apparatus for introducing a pulverulent material into a tire of a wheel assembly, through the valve stem thereof, without a large amount of operator time, effort, or intervention. The apparatus includes two main types of components--the mainframe component and one or more workstation components. Each workstation component serves as a location from which an operator of the apparatus introduces the pulverulent material into a tire and the mainframe component includes the a container for confining a predetermined amount of the pulverulent material and includes the other components required to dispense the pulverulent material into the container from a hopper or the like, and to evacuate the pulverulent material from the container and distribute the same out to a workstation through a suitable conduit where the pulverulent material is introduced into a tire. A method of introducing pulverulent material into a tire is also described.

Abstract: A method and apparatus for removing puncture sealing compositions from a tire, characterized by allowing air pressure to flow out of the tire via the valve, removing the tire valve, introducing a hose into the tire through the valve bore until the introduced hose end dips deeply into the sealing preparation contained in the tire and generating a pressure differential so that the sealing preparation is removed through the hose.

Abstract: A portable emergency instant inflation device includes a box and a fastening plate with slots. The upper side of the box is provided with fastening hooks for engaging slots of the fastening plate. An inflation tube is formed at one end of the box. A tie string extends from the other end of the box to connect to a pull ring. A partition plate with through holes is disposed inside the box to divide the interior of the box into upper and lower spaces. The upper space contains a sac filled with citric acid solution while the lower space is filled with soda powder. The lower space further communicates with the inflation tube, which is internally provided with a valve flap. A slide cutter is further disposed in the upper space and has cutting edges slightly abutting the sac. The slide cutter is connected to the tie string via a cutter mount.

Abstract: The invention relates to a container for the sealing of tires with punctures, with which it is possible to first mix a liquid sealant and a filler when sealing is to take place, but to keep them separate during the prior storage. The container has a first chamber for filler and a second chamber for the liquid sealant. The chambers are fixedly or movably connected together and at least one of the chambers can be compressed. Between the chambers there is a partition wall, which consists at least in part of a rupturable member which is torn so that the liquid sealant and the filler mix before injection of the mixture into the tire via an outlet valve by compression of the chamber.

Abstract: A housing of length and cross-sectional dimension to enclose a given amount of tire sealing fluid is selected, coupled with a flexible hose at its output port with a pneumatic tire valve, and charged at its input port from a source of compressed air to inject the tire sealing fluid within the housing by means of the hose through the pneumatic valve to protect a tire against later blowouts or puncturing in use. In a preferred embodiment, the housing is constructed of a polyvinylchloride tube, while the hose is constructed of a clear vinyl composition.

Abstract: The invention relates to a method of inflating a tire comprising the steps of:providing a tire mounted on a rim, said tire comprising a tire valve to allow selective inflation or deflation of said tire, said tire being filled with a certain amount of air;deflating said tire to reach a pressure which is less than or equal to a predetermined low pressure, said predetermined low pressure being lower than atmospheric pressure;inflating said tire with a source of inert gas to reach a pressure at least equal to a pressure greater than atmospheric pressure, to obtain inside said tire a gas mixture comprising between 5% O.sub.2 by volume and 0.5% O2 by volume.It also relates to a tire evacuation apparatus specially adapted thereto.

Abstract: A gas exchange device designed to displace existing air or gas inside a pressurizable or inflatable article with an inert, dry gas such as nitrogen. The gas exchange device includes an elongated injection tube which inserts into a valve or opening of a pressurizable or inflatable article. As an inert gas is injected into the article through the elongated injection tube, the interior gas is exhausted through the article valve or opening into an exhaust receiving orifice. The exhausted gas is controlled so that it may be monitored for moisture content.

Abstract: A traction enhancement system includes an electronic controller, first and second pneumatic tire and wheel assemblies, a first wheel brake, a second wheel brake, a source of pressurized air, an air pressure sensor, and a vehicle speed sensor. The first and second pneumatic tire and wheel assemblies each define a pneumatic chamber having pressurized air therein. The first wheel brake operably resists rotation of the first tire and wheel assembly. The second wheel brake likewise operably resists rotation of the second tire and wheel assembly. The source of pressurized air is connected to the tire and wheel assemblies. The air pressure sensor is located and configured to monitor the pressure of the pneumatic chambers, and is electrically connected to the controller. The vehicle speed sensor is electrically connected to the controller as well.

Abstract: A versatile air blow-gun is provided which includes a clamping assembly on the mouth of the gun. By use of the clamping assembly, a long scavenge pipe with a head bent at an angle can slide in or out when the clamp is loosened and be fixed at a desired position and direction by locking it. An inflating adapter is screwed on to the end of the air scavenge pipe, which adapter is used for blowing a larger area at a lower air speed to prevent the dirt and the chips from flying up. By means of a shuttling sleeve, a regulating adapter, a spring and a scavenge sleeve, the compressed air is ld from a smaller channel to a bigger one for lowering the blowing air speed and increasing the sweeping area. When the crown bar of the regulation adapter presses against the valve stem of the air valve of the tire, it can inflate the tire.

Abstract: This invention is directed to a method for inhibiting particulate material in a pneumatic tire from adversely affecting operation of a tire valve assembly The method involves inserting a filter element into a valve stem passage of the valve assembly while the valve assembly is connected to the wheel assembly, and then installing a sealing valve in the valve stem passage. The invention also relates to a tool for inserting the filter element into the valve assembly to inhibit particulate material from passing into the valve assembly while allowing fluid to pass therethrough. The tool comprises a body selectively attachable to the valve assembly. The body has a plurality of passages therein, including a plunger passage, a filter passage and a fluid passage, and a selector valve having two bores therein for selective registry with the plurality of passages.

Abstract: A sealant composition especially useful for stopping punctures in vehicle tires includes: (a) a viscous fluid such as propylene glycol or polypropylene glycol; (b) one or more fibrous materials such as cellulose, wool, nylon, rayon, hair, wollastonite, rock-wool, glass wool fibers, polyester, polypropylene, or other material of like nature; and (c) flat plate-like particles, such as mica. In one embodiment, the composition is too viscous to be readily passed through a pneumatic tire valve stem, so the viscous product is installed into the tire while the tire is dismounted from the wheel. In another embodiment, the composition is made of two parts, each of which is sufficiently low in viscosity to pass readily through the valve stem, but which react on mixing inside the tire form a liquid of higher viscosity.

Abstract: A product for inflating a pneumatic tire including an enhanced delivery system is disclosed according to the present invention. The tire inflating product includes a container containing a condensed gas and a sealant, and a flexible conduit extending outwardly from a first end of the container in a direction parallel to the longitudinal axis of the container. The free end of the conduit is adapted to be connected to a valve stem of a tire and, typically, includes a threaded coupling with a valve depressor. The container includes a valve assembly on one end for releasing the contents of the container and an actuator is provided for actuating the valve assembly to release the container contents through the conduit.

Abstract: By means of the device and the process, a defective pneumatic tire of the vehicle is provided with emergency running properties. This takes place by means of an inflating device, after the removal of which from the loading space, a signal is triggered, which constantly reminds the driver to move the vehicle only within the range of predetermined speeds. By means of the process, it is ensured that improper actions which would be possible in connection with the pneumatic tire with emergency running properties, are largely avoided.

Abstract: Damping of the bounce in elastomeric tires is desirable to eliminate the tendency of a machine, such as a loader, to lope or bounce when carrying a load for a distance. The subject invention substantially reduces the lope or bounce by filling the cavity or closed chamber of a tire of a wheel assembly with a liquid, mounting an accumulator to a rim, and controllably interconnecting the closed chamber and the accumulator. By controlling the rate of fluid flow between the closed chamber and the accumulator, the elastomeric tire retains some resiliency while forcing the springs and shock absorbers of the machine to control the tendency for the machine to bounce or lope.

Abstract: A wheel (10) having a tire (12 ) is provided with a liquid molasses as a ballast (100). The tire can be tubeless or can contain a tube (28). The molasses is preferably desugared (less than 30% by weight sucrose) and is able to sustain a temperature of -30.degree. F. (-34.4.degree. C. and below) without freezing. The molasses is non-toxic, non-corrosive and non-abrasive and is environmentally friendly. Farm, utility, industrial, lawn and garden and commercial vehicles use ballasted tires.

Abstract: A tire inflation device for delivering a fluid, such as carbon dioxide, from a liquid gas cartridge to a pneumatic tire wherein the device has a capability of controlling inflation to enable the user to achieve a preset desired tire pressure. A cartridge activating mechanism is provided. A cartridge securing mechanism is provided which prevents removal of an activated, unspent cartridge from the inflating device.

Abstract: An adaptive tire pressure control strategy for a central tire inflation system 10 wherein the programmed demand pressure setting P.sub.D may be increased automatically if certain criteria are met. These criteria are indicative of a running condition wherein tire temperature may be increasing to unacceptable levels due to underinflation. Additionally, air may also be added to tires in this condition in order to increase the load capacity of the tire, reduce tire temperature and prolong tire life.

Abstract: An apparatus, method and vehicle in which the tires operate in accordance with stiff modes in order to increase the damping of their oscillations, the tires being filled practically completely with non-compressible fluid and being subject to the establishing of communications between at least one pair by connections filled with a constant volume of non-compressible fluid.

Abstract: Method of and apparatus for introducing pulverulent material into a tire for the purpose of balancing a tire and an associated wheel assembly. A quantity of polymeric pulverulent material sufficient to balance a tire and an associated wheel assembly is charged to a cylindrical chamber and confined therein. Pressurized air is passed through the chamber in such manner as to form cyclonic air currents in the chamber. The cyclonic air currents can be obtained by configuring the air inlet and the air outlet for the chamber so that their respective axes are not aligned. A mixture of air and pulverulent material is withdrawn from the chamber and passed to a tire which is being balanced.

Abstract: Flatproofing liquid is provided to tires through a one-way disposable valve assembly. In accordance with the method, the valve stem core is removed from the tire to allow the liquid to be freely admitted. A one-way valve is attached to the valve stem, and the tire is filled with the flatproofing material. The flatproofing material is then allowed to cure in the tire and in the valve. After curing, the valve is removed and discarded. The apparatus includes an inexpensive one-way valve for connection to the valve stem at one end and supply hoses at the other.

Abstract: An automobile tire inflator that embodies an air-flow passage way with two identical air chuck adapters, one attached at each end of the passage way, and an air-flow cut-off clip that can be closed or opened by hand attached to the air-flow passage way so as to open or close the air-flow passage way to the flow of air.

Abstract: A control system and method for controlling deflation operations in a CTIS (10, 200). During deflation to a selected pressure (P.sub.D), the tires will be deflated to a target pressure (P.sub.T) lower than the selected pressure and then inflated to the selected pressure.

Abstract: A punctured, substantially deflated pneumatic automotive tire is internally sealed using a specially designed sealant canister containing CO.sub.2 gas propellant and a tire sealant mixture. The canister sealant comprises approximately 97% by weight of an acrylic latex material which is present with the propellant under a pre-use internal pressure of about 55-65 psig. An outlet cone portion of the canister is removably connectable to the tire inflation valve, and the internal volume and pre-use pressure of the canister are related to the internal volume and normal full inflation pressure of the tire in a manner such that the canister is operative to deliver essentially its entire contents into the tire, yet only partially inflates the substantially deflated tire past its initial pressure.

Abstract: A method of and apparatus for introducing pulverulent material into a tire through a tire valve stem is performed by confining a predetermined amount of pulverulent material in a cylindrical chamber having axially spaced and radially offset inlets and outlets, subjecting the confined pulverulent material to pressurized air which is transformed into a cyclonic air current within the chamber by the radially offset inlet and outlet, and introducing admixed air/pulverulent material from the chamber into a tire through its associated tire valve stem.