An air maintenance tire assembly having an elongate air pumping sidewall air passageway includes an inlet air passage screw assembly inserted through a tire sidewall profiled bore to conduct air from outside the tire into a regulator positioned within a tire cavity. The screw assembly includes a screw body having at an outer end a large-diameter filter housing, a smaller-diameter midsection shank portion, and an inner large-diameter valve housing connecting to the regulator within the tire cavity. A valve mechanism seats within the valve housing and moves between an open position conducting air from the screw body into the regulator assembly and a closed position preventing a backflow of air from the regulator assembly.

An air maintenance tire assembly includes an air pumping passageway located within a tire sidewall to generate compressed air. An outlet screw assembly includes an elongate screw body residing within a profiled sidewall bore. The screw body extends through an axial span of the first sidewall to the tire cavity to conduct air from the sidewall air passageway to the tire cavity. The screw body has enlarged sectional end components to deter radial dislodging of the screw body from the sidewall bore during operation.

An air maintenance tire assembly includes an air pumping passageway located within a tire sidewall to generate compressed air. An outlet screw assembly includes an elongate screw body residing within a profiled sidewall bore. The screw body extends through an axial span of the first sidewall to the tire cavity to conduct air from the sidewall air passageway to the tire cavity. The screw body has enlarged sectional end components to deter radial dislodging of the screw body from the sidewall bore during operation.

A pressure-tight container pressure control assembly is configured to adjust internal pressure in a pressure-tight container. The pressure-tight container pressure control assembly has a housing having an attachment end. wherein the attachment end is configured to penetrate a wall of the pressure-tight container. A seal is arranged around the housing and configured to form an airtight seal between the housing and the wall. A pressure controller is arranged in the housing and configured to provide a controlled transfer of a material between the housing and the pressure-tight container through the wall thereby adjusting an internal pressure of the material within the pressure-tight container.

Disclosed is a hollow tire with an inflating valve, including two parts: a tire body and an inflating valve. The inflating valve is disposed in the tire body, the inflating valve is a rubber gasket inflating valve, and an inflating valve rubber base and the tire body of the hollow tire are bonded by using a rubber vulcanization process to ensure gas tightness. An inflating valve body is hidden in the tire body of the hollow tire and can be located at any position on a cross section of the tire body of the hollow tire. Compared with an ordinary hollow tire, in this disclosure, the inflating valve is disposed on the hollow tire, so that high-pressure gas can be inflated, thereby enhancing a load-bearing capability and buffering performance and improving a service life of the tire.

Disclosed is a hollow tire with an inflating valve, including two parts: a tire body and an inflating valve. The inflating valve is disposed in the tire body, the inflating valve is a rubber gasket inflating valve, and an inflating valve rubber base and the tire body of the hollow tire are bonded by using a rubber vulcanization process to ensure gas tightness. An inflating valve body is hidden in the tire body of the hollow tire and can be located at any position on a cross section of the tire body of the hollow tire. Compared with an ordinary hollow tire, in this disclosure, the inflating valve is disposed on the hollow tire, so that high-pressure gas can be inflated, thereby enhancing a load-bearing capability and buffering performance and improving a service life of the tire.