An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and/or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

A chuck for inflating a tire having a Presta valve includes a valve engagement device defining an aperture with a central axis and a diameter, the valve engagement device movable radially with respect to the central axis to increase and decrease the diameter of the aperture. A locking device can engage with the valve engagement device to lock the valve engagement device in a selected radial position with respect to the central axis of the aperture. The chuck can include a seal positioned within the valve engagement device, the entire seal moving radially with the valve engagement device.

A combination structure for a hose connected between a tire and an air compressor is disclosed. The air compressor includes a box in which a compressor unit and a sealant bottle are installed. The sealant bottle has an inlet and an outlet. The inlet of the sealant bottle is connected to one outlet tube of the compressor unit. The hose has a first end and a second end. The first end of the hose is adapted to be connected to the outlet tube of the sealant bottle. The second end of the hose can be connected to the combination structure, which generally includes a cap, a core element, and a plug. With the combination structure, the chemical sealant contained in the sealant bottle can be prevented from flowing out to contaminate objects due to incorrect operation or negligence.

In order to solve the problem, a valve core according to one aspect of the present disclosure including: a barrel part that is cylindrical; a barrel packing that surrounds an outer lateral surface of the barrel part; a flange part that abuts on the barrel packing from above; and a head part that includes a male screw part at its outer lateral surface and that rotates relative to the barrel part. A lower surface of the head part abuts on the flange part from above.

A highflow air coupling system is provided. The highflow air coupling system has a valve chamber housing having a plurality of openings including a user serviceable port and a reversible air flow valve. The interior of the valve chamber housing has a multi-tiered main valve with multiple large holes located on multiple levels. A unique exterior grip of the housing allows for easy grasping of the housing chamber. The device and system are especially suitable for use with, for example, inflating tires, especially in a military environment.

A highflow air coupling system is provided. The highflow air coupling system has a valve chamber housing having a plurality of openings including a user serviceable port and a reversible air flow valve. The interior of the valve chamber housing has a multi-tiered main valve with multiple large holes located on multiple levels. A unique exterior grip of the housing allows for easy grasping of the housing chamber. The device and system are especially suitable for use with, for example, inflating tires, especially in a military environment.

An anti-jet joint structure of a connection hose of a vehicle air compressor contains: an accommodation box, an adhesive supply can, and a connection hose. The accommodation box accommodates the vehicle air compressor started by a power to produce air. The adhesive supply can accommodates chemical adhesive for repairing a tire, and the adhesive supply can includes an open segment and a supply hose. The connection hose includes a first joint and a second joint opposite to the first joint. The first joint is engaged with the supply hose, and the second joint is screwed with a gas nozzle of the tire. The second joint is the anti-jet joint structure and has a first connection assembly and a second assembly. The first connection assembly is connected with or is removed from the second connection assembly having different interior structures and volumes so as to mate with various tires.

An outlet coupling for a sealant container comprises a connector having an open first end to engage with a tire valve stem and an open second end continuous with a channel. The outlet coupling also comprises a pin at least partially located within the channel, the pin comprising a body having a head and an engaging portion at substantially opposite ends thereof. The head is in contact with a biasing member and the engaging portion is engaged with a sealing element. The pin is movable between an open position wherein the sealing element is spaced from an end of the channel and a closed position wherein the sealing element seals the end of the channel. Methods of sealing a puncture in an inflatable article, such as a pneumatic tire, with a tire repair apparatus using the outlet coupling are also disclosed.

An outlet coupling for a sealant container comprises a connector having an open first end to engage with a tire valve stem and an open second end continuous with a channel. The outlet coupling also comprises a pin at least partially located within the channel, the pin comprising a body having a head and an engaging portion at substantially opposite ends thereof. The head is in contact with a biasing member and the engaging portion is engaged with a sealing element. The pin is movable between an open position wherein the sealing element is spaced from an end of the channel and a closed position wherein the sealing element seals the end of the channel. Methods of sealing a puncture in an inflatable article, such as a pneumatic tire, with a tire repair apparatus using the outlet coupling are also disclosed.

An embodiment of the present invention provides an air injection valve-integrated spray for spraying and applying polyurethane foam to a desired portion of a tire. The spray includes a polyurethane foam chamber disposed at an end of a coupling portion and keeping polyurethane foam under pressure and an air delivery chamber delivering air injected from an air injection valve to a breaking portion of the polyurethane foam chamber, in which the breaking portion of the polyurethane foam chamber is broken by air coming out of the air delivery chamber, so the polyurethane foam is sprayed.