Patent ID: 6892401

Claim:
A compressed air plunger tool, said tool comprising: an air chamber for releasably storing compressed air, said air chamber including an air inlet fluidly coupled thereto for selectively receiving compressed air, said air inlet comprising a one-way air inlet, an outlet valve being fluidly coupled to said air chamber, said outlet valve being selectively positioned in a closed position for retaining compressed air within said air chamber or an open position for releasing compressed air from said air chamber; a tube being fluidly coupled to said air chamber such that compressed air stored within said air chamber is released into said tube when said outlet valve is placed in said open position, said tube having an open free end, at least two guide bars being positioned within said tube and mounted generally adjacent to said free end; a first popup pressure indicator being fluidly coupled to said air chamber, said first pop-up pressure indicator being positionable in a retracted position or an extended position, said first pop-up pressure indicator being urged into said extended position when compressed air positioned in said air chamber is generally equal to a first pressure; and a second pop-up pressure indicator being fluidly coupled to said air chamber, said second pop-up pressure indicator being positionable in a retracted position or an extended position, said second popup pressure indicator being urged into said extended position when compressed air positioned in said air chamber is at least 10 psi greater than said first pressure.