A pneumatic valve for a tire having a stem fluidly coupled to a pressure vessel is provided. The pneumatic valve includes a core body that couples to the stem, the core body having an interior passageway. A cap is coupled to the core body, the cap having a concavity on an outer diameter and a bore hole extending from one end, the bore hole being in selective fluid communication with the interior passageway. The cap further has an interior portion, the core body being at least partially disposed in the interior portion. A valve seat is disposed in the interior portion between the core body and the cap member. A sealing plug is moveably disposed at least partially in the interior passageway and at least partially within the bore hole. A biasing member is disposed in the interior passageway and arranged to bias the sealing plug against the valve seat.

An Automatic pressure valve for the inflation—deflation of pneumatic arrangements comprises a main body (102) with an inlet connector (103) communicated with a pressurized air supply network an outlet connector connected to a pneumatic arrangement and a mechanical means which allows for a total or partial air passage or blockage to perform inflation—deflation operations of the pneumatic arrangement in a faster and practical way. The mechanical means comprises a main movable plunger (116) having an inner stepped through channel (117), a spring (120) arranged on a seat (121) defined in the inner stepped channel (117), an inflation plunger (122) operatively retained by said spring (120), a proximal movable end (126) within a first inner chamber (105), a reduced middle section (119), and a distal movable end (128) having a smaller diameter than the proximal end (126) and arranged within a second inner chamber (106)

An inflation valve for a tubeless tire may include a valve body defining a cavity having a proximal opening and a distal opening. A valve stem extends through the cavity and includes a plug at a proximal end of the valve stem. The proximal opening of the cavity is defined by a beveled surface, and an outer diameter of the beveled surface is larger than an inner diameter of the valve body. The valve is transitionable between: a) a closed position, where a resilient surface of the plug engages the beveled surface to seal the cavity, and b) an open position, where the resilient surface of the plug is spaced from the beveled surface to unseal the cavity.

A pressure sensitive valve core usable within a valve stem of an inflatable or pressurized apparatus and configured to automatically maintain a manufacturer's recommended air pressure within the inflatable or pressurized apparatus throughout fluctuations in temperature and elevation, and to regulate the amount of air pressure being put into the inflatable or pressurized apparatus according to a manufacturer's recommended air pressure. The pressure sensitive valve core includes a body and a spring valve mechanism including a spring designed according to Hook's Law to automatically close the spring valve mechanism against the body when a predetermined amount of pounds per square inch (PSI) is inserted into the inflatable or pressurized apparatus.

A multifunctional external inflating valve and a mounting method for a loading device are disclosed. An inflating valve body of the inflating valve includes a three-way through main body through from a side surface by a side surface connecting part connecting a loading device. A valve core is arranged in an axial middle hole. A hole cavity is formed in the front portion of the axial middle hole and connected to an original tire inflating valve. An outer conical surface is arranged on the front portion of the valve core. The front portion, comprising the outer conical surface, of the core protrudes out of the front end of the hole cavity of the main body. An core conical surface sealing rubber pipe is mounted on the outer conical surface of the core and seals the core and a conical hole sealing surface of a tire inflating valve inner hole cavity.

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.

The present invention relates to a tire valve, in particular a bicycle tire valve, comprising a tubular stem, where the stem consists of a composition (Z1) comprising a thermoplastic (P1) and comprising a filler (F1), and also to a valve stem for the production of a tire valve, where the valve stem is tubular and consists of a composition (Z1) comprising a thermoplastic (P1) and comprising a filler (F1). The present invention further relates to the use of the valve of the invention for the production of a molding comprising an inflatable tube section, in particular an inner tube for a tire, and also to the use of the valve of the invention for the production of a tubeless bicycle tire.

A valve stem assembly for a tire includes a removable grommet of a plurality of grommets having different shapes and sizes. The removable grommets allow the valve stem assembly to be used on a variety of rims. Each grommet fits into distinct holes within the rims. The valve stem assembly also includes a valve stem body that receives the removable grommets and an attachment end that encloses a valve core within the valve stem body. A cap may cover the valve core and attachment end.

A tire valve assembly is disclosed. The tire valve assembly includes a gas nozzle structure, a movable rod, an air pipe, an elastic close contact pad, a screw nut, an elastic O-ring and a dust cap. The tire valve assembly can use a punched hole on the end of the movable rod to receive the tire repair liquid flowing into the air pipe. Take out the movable rod during maintenance to remove the tire repair liquid in the punched hole. When the movable rod is reinstalled in the air pipe, the tire repair liquid remaining on the inner wall of the air pipe will also be squeezed out of the air pipe. With this, the tire repair liquid will no longer block the tire valve assembly.