Patent ID: 7537444

Claim:
Apparatus for producing a solid product without air bubbles comprising: a pressurizing container have a top wall with a curved undersurface and a top opening, a lid inside said container for closing and sealing said top opening, said lid having a curved top surface extending inwardly from an outer peripheral edge to a notch, said top surface being opposite and complementary with said curved undersurface, said notch extending up from transverse to said top surface said notch being sized and shaped to fit into and extend through said top opening to center said lid in said top opening, a flexible seal supported by said top surface and said notch, said notch locating said seal relative to said top opening around the entire periphery of said top opening and between said curved undersurface and top surface that is compressed between said top surface and said undersurface and restrained along one side of said seal by said notch when said container is pressurized for sealing said top opening closed, a body of flowable materials with air bubbles in said container, and means for pressurizing said container to a pressure above 50 psi for a selected time interval sufficient to force said top surface toward said undersurface to compress said seal and to drive out said air bubbles from said material as said material is changed from a flowable state to a solid state.