Abstract: A filling gas for a tire having one or more hollow chambers, especially vehicle tires with a body of rubber or rubber-like material having suitable reinforcement inserts. Sulfur hexafluoride (SF.sub.6) is used as the filling gas, which can also be a mixture of sulfur hexafluoride and one or more other gases, such as air. The tire hollow chamber, in comparison to the air, contains a greater quantity of sulfur hexafluoride. The ratio of air quantity to the quantity of sulfur hexafluoride is in the range of approximately 1:1 to 1:8.5. A relief or venting conduit is provided that extends into the vicinity of the highest location of the tire hollow chamber. Optionally, the rim breakthrough or valve leading to the tire hollow chamber is closed or sealed off. The valve for filling the tire hollow chamber, and the venting device may be arranged as a combined unit with respect to the rim body.

Abstract: An air pressure filling system for tires includes a rotary table receiving a plurality of tires arranged in a circle. A rotary distribution joint is placed over the rotary table and is connected to an air source through a pressure control device for controlling an air pressure of the tires at a predetermined pressure. A plurality of air hoses are connected to the rotary distribution joint at one end thereof and are adapted to be connected to the tires by an operator at the other end thereof. The operator simply keeps one place where he is able to connect the hoses to the tires one by one while the tires are transferred on the rotary table, and the tire filled with a predetermined air pressure is returned the operator.

Abstract: An inflator for pneumatic tires that uses compressed gas. The inflator has a housing 10, a cartridge 12 of compressed gas that communicates through a passage 20 of the housing, and a valve chuck 14 connected to the passage and constructed to fit over and seal about a tire valve stem. The passage has a tubular member 50 with a restrictive orifice 60 that produces a pressure drop to the flow of gas. The valve chuck has a rotatable nut 64 that compresses an annular gasket 22 to provide a seal with the valve stem. A clamp removably secures the inflator to the underside of a bicycle seat.

Abstract: An axle wheel end assembly (10) is provided for vehicles having an onboard tire inflation system (12). The wheel end assembly includes a rotary seal assembly (68) defining an annular air chamber (70) which seal assembly is received in a relatively protected inboardly opening annular space (69) defined by an axle spindle surface (66) and an axially inboardly extending sleeve (62) of the hub (42). Open/close valve member (110) is located outboard of the hub flange (50) interposed the fluid connections between the annular air chamber (70) and the opening (120) to the tire rim (122) for isolating the interior of the tire rim from the inflation system for storage and/or steady state driving conditions.

Abstract: A tire-pressure regulating system is proposed with which the air pressure in the vehicle tires can be varied while driving. The tires are connected to supply lines in which rotor connections, control valves, flow restrictive elements and an adjustable regulating valve are disposed. A relay valve and an axle valve are incorporated following the regulating valve.By means of guiding the supply line in and at the axle valve in a particular manner, an acceleration of the pressure equalization process is attained.The tire-pressure regulating device is preferably usable in trucks and trailer trucks.

Abstract: Apparatus is provided for use with a tractor or like vehicle. The apparatus is adapted to liquid ballast and inflate a tube within a wheel of the vehicle. The apparatus comprises inflation means which include a pump adapted to pressurize air or liquid to the inflation pressure of the tube. A reservoir is provided which is adapted to be filled with ballast. The apparatus includes a nozzle adapted to fit within the tube. The nozzle is adapted to be positioned to purge up to 100% of the fluid within the tube at ambient pressures. The apparatus also includes piping means connecting the pump to the nozzle, and the pump to the reservoir.

Abstract: The delivery system functions under pump pressure to introduce a fluid such as a tire sealant interiorly of a pneumatic vessel such as a tire through the air valve without deflating the vessel. A valve core extractor functions in a pressurized atmosphere to remove and retain the valve core without loss of pressure. A pump including a resilient, one way check valve introduces the fluid through the valve, also without loss of pressure. Following introduction of the desired quantity of the fluid, the valve core extractor is functioned in reverse to reinsert the valve core, all without loss of system pressure.

Abstract: A traction device for a motor vehicle comprising a hose connecting the vehicle's exhaust pipe to an air pressure pump inlet. The outlet of the pump is detachably connected to the inlet valve of the vehicle's tire. An outlet valve for exiting cold air is connected to another hose communicating with a temperature gage and a pressure gage.

Abstract: A method and device for automatically increasing the restoring force of a pneumatic tire characterized in that the centrifugal force created by rotation of the tire is caused to act on a liquid within a large diameter chamber of a centrifugal pump and the thus highly pressurized liquid is forced into the tire, so that the deformation of the wheel tread of the tire during operation of a vehicle is rapidly restored.

Abstract: A device for filling pneumatic tires. The device includes a container for gas under pressure and upon which a dispensing head is mounted. The head has a passage leading from the interior of the container and there is a tire valve in the passage movable to opened and closed positions. An orifice in the passage inwardly of the valve has a flow capacity less than the valve to determine the maximum flow rate of gas from the container. The dispensing head has a sealed and threaded connection to the container and there is a relief port connecting the passage at a point between the valve and orifice with the threaded connection inwardly of the sealed connection and effective to bleed gas from the container to atmosphere when the dispensing head is unthreaded from the container far enough to break the sealed connection but before the threads are completely disengaged.

Abstract: An enclosed container having a divided chamber with an air pressure section and a liquid coolant section separated by a pressure-transmitting wall. A one-way inflation valve in the container is in communication with the air pressure section for inflation of this section. A liquid release valve in the container is in communication with the liquid coolant section and is set to release liquid into a tire cavity when the tire is operated in a deflated condition. The container is of a resilient, noncollapsible material for retaining air under pressure and for gripping the rim on which the tire is mounted.

Abstract: An extremely simple valve stem assembly for a tubeless tire and rim, comprising an elastomeric boot or flexible enclosure adapted to be inserted into a rim hole from one side thereof, and a hard plastic insert, which is specially configured to be joined with the boot, such insert being inserted from the opposite side of the rim so as to create a tight, mechanical fit, the dimensions being so proportioned that a perfect seal is established between the periphery of the boot and the rim by reason of boot expansion, as well as an extremely tight seal between the insert and the inner portion of the boot by virtue of compression between insert and rim.

Abstract: The invention is a light, portable, miniaturized tire inflator adapted to fit in a limited space, such as in a tire well for a deflated, space-saving tire in a trunk of an automobile, and adapted to be carried or held in one hand. The tire inflator includes: a pyrotechnic material, an ignitor mechanism, a pressure vessel, and a nozzle. The pyrotechnic material generates an inflating gas upon burning to inflate a tire without a source of stored fluid. The ignitor mechanism is located adjacent to the pyrotechnic material to ignite and cause the pyrotechnic material to burn. The pressure vessel holds the pyrotechnic material. The pressure vessel has a tire end and a pyrotechnic end. The nozzle is mounted on the tire end of the pressure vessel. The nozzle is adapted to be connected directly to a valve of the tire.

Abstract: The invention is a light, portable, miniaturized tire inflator adapted to fit in a limited space, such as in a tire well for a deflated, space-saving tire in a trunk of an automobile, and adapted to be carried or held in one hand. The tire inflator includes a metal, preferably steel pressure cannister comprising in one embodiment a pressure vessel and a pressure head cap assembly, a pyrotechnic material in the pressure vessel, an ignitor mechanism and a nozzle in the head cap assembly, an internal insulation liner for said pressure cannister to reduce the temperature level of the cannister to a level acceptable to an external insulation, such as plastic foam or paper, of about 350.degree. F, and a resilient insert for example rubber, in the nozzle end to mate and thread in one embodiment, with the metal tire valve threads, and prevent cross threading, while providing a seal with the tire valve for inflation of the tire.

Abstract: A tire has its tire cavity filled with inexpensive lubricated light cellular particles and thereby avoids deformation and flattening of the tire upon loss of inflation pressure while maintaining vehicular control.