Patent ID: 7216761

Claim:
A device for preparing and ejecting polymeric cement made from at least two pre-packaged components, said device comprising: a tubular vessel including a first axial end wall having a closed outlet, and a second axial end wall having an aperture, wherein a first starting component of the polymeric cement is present inside said tubular vessel near the first axial end wall; a shaft extending through said aperture of the second axial end wall, having a first section outside said vessel and a second section inside said vessel; a piston element comprising a closed container filled with a second starting component of the polymeric cement, the container having a bore and being slidingly engaged upon the second section of said shaft; an agitator element mounted on the end of the second section of said shaft; wherein said piston element is selectively lockable to said shaft; and wherein opening means for providing an opening in said closed container are provided, which opening means are operable by said shaft.