Pressurized fluid-drivable device for injecting a treatment liquid stored therein into a tire or other enclosed space

Apparatus interconnectable between a source of pressurized fluid and a normally closed inlet valve operative, when opened, to permit a flow of pressurized fluid therethrough into an enclosed space with which the inlet valve is associated, said apparatus comprising:

• a hollow liquid storage and transfer member filled with a charge volume of a treatment liquid to be injected into the interior space, said hollow liquid storage and transfer member having an inlet portion removably connectable to the source of pressurized fluid, and an outlet portion removably connectable to the inlet valve and operative to hold it open;
• means associated with said inlet and outlet portions for sealingly retaining the treatment liquid charge volume within said hollow storage and transfer member until said apparatus is to be used,
• wherein:
• said means include resilient check valve members comprising O-ring seal members carried by said inlet and outlet portions;
• said means being operative, in response to respective connection of said inlet and outlet portions to the source of pressurized fluid and the inlet valve, to permit pressurized fluid to sequentially flow into said hollow liquid storage and transfer member, drive the treatment liquid charge volume into the enclosed space, and then flow into the enclosed space from within the interior of said hollow liquid storage and storage member, and
• said means further being operative to inhibit pressure-driven reverse fluid flow through said hollow liquid storage and transfer member during use of said apparatus.

Apparatus interconnectable between a source of pressurized fluid and a normally closed inlet valve operative, when opened, to permit a flow of pressurized fluid therethrough into an enclosed space with which the inlet valve is associated, said apparatus comprising:

• a hollow liquid storage and transfer member filled with a charge volume of a treatment liquid to be inject into the interior space, said hollow liquid storage and transfer member having an inlet portion removably connectable to the source of pressurized fluid, and an outlet portion removably connectable to the inlet valve and operative to hold it open;
• and
• means associated with said inlet and outlet portions for sealingly retaining the treatment liquid charge volume within said hollow storage and transfer member until said apparatus is to be used, said means including;
• said inlet portion having an inlet fitting having a section disposed within the interior of said hollow liquid storage and transfer member, said inlet fitting section having a first annular exterior surface recess through which a fluid inlet passage outwardly opens,
• said outlet portion having an outlet fitting having a section disposed within the interior of said hollow liquid storage and transfer member, said outlet fitting section having a section annular exterior surface recess through which a fluid outlet passage outwardly opens, and
• O-ring seal members coaxially carried within said first and second annular recesses and resiliently blocking said fluid inlet and outlet passages;
• said means being operative, in response to respective connection of said inlet and outlet portions to the source of pressurized fluid and the inlet valve, to permit pressurized fluid to sequentially flow into said hollow liquid storage and transfer member, drive the treatment liquid charge volume into the enclosed space, and then flow into the enclosed space from within the interior of said hollow liquid storage and storage member,
• said means further being operative to inhibit pressure-driven reverse flow through said hollow liquid storage and transfer member during use of said apparatus.