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US 2009/0243162 A1Published application
Method for producing a solid
OwnerJohn S. Shepardinventor
Life of this patent
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Abstract
An apparatus and method for producing a solid product such as orthopedic appliances, dental splint mouthpieces, dentures, lined dentures and the like from flowable materials such as silicones, acrylics, polyurethanes and dental casting investments. The container in which an article is treated will develop 80-100 psi and has opposed curved surfaces between which a seal is formed without leakage.
Claims7
A method of producing a solid product without air bubbles comprising the steps of:
- providing a body of flowable material with air bubbles
- pressurizing said body of flowable material at a pressure of above about 50 psi for a selected time interval sufficient to drive out air bubbles from said material as said material is changed from a flowable state to a solid state.
A method for producing a solid product without air bubbles comprising the steps of:
- providing a body of flowable material with air bubbles, said body of flowable material is immersed in water in said container during said pressurizing to provide equal pressure on all sides of the material being treated,
- pressurizing said body of flowable material including silicones, acrylics, polyurethanes and dental casting investments at a pressure between about 80 psi and 100 psi for a selected time interval sufficient to drive out air bubbles from said material as said material is changed from a flowable state to a solid state.
Dependencies are inferred from the claim text.