Pressure measurement in microwave-assisted chemical synthesis
AssigneeCEM Corporation
InventorsWilliam Edward Jennings, Wyatt Price Hargett JR., James Edward Thomas
Life of this patent
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Abstract
A pressure-measuring vessel system for microwave assisted chemical processes is disclosed. The vessel system includes a pressure resistant vessel that is otherwise transparent to microwave radiation, a pressure-resistant closure for the mouth of the vessel, with portions of the closure including a pressure resistant synthetic membrane, a pressure transducer external to the vessel, and a tube extending from the transducer, through the membrane and into the vessel for permitting the pressure inside the vessel to be applied against the transducer while the closure and membrane otherwise maintain the pressure resistant characteristics of the vessel.
Claims21
A pressure-measuring vessel system for microwave assisted chemical processes, said vessel system comprising:
- a pressure resistant vessel that is otherwise transparent to microwave radiation;
- a pressure-resistant closure for the mouth of said vessel, portions of said closure including a pressure resistant synthetic membrane;
- a pressure transducer external to said vessel;
- and
- a tube extending from said transducer, through said membrane and into said vessel for permitting the pressure inside said vessel to be applied against said transducer while said closure and membrane otherwise maintain the pressure resistant characteristics of said vessel.
A pressure measurement assembly comprising:
- a pressure-resistant vessel that is transparent to microwave radiation
- a closure for said vessel;
- a pressure transducer external to said vessel and said closure;
- a needle for extending from said transducer, through said closure and into said vessel, and for providing pressure communication between the interior of said vessel and said transducer;
- and
- a collet for engaging and maintaining said transducer, said needle, said closure and said vessel in linear relationship so that the pressure in said vessel is transmitted to said transducer while said vessel is in use.
A vessel system for microwave assisted chemistry comprising:
- a pressure resistant reaction vessel formed of a microwave transparent material;
- said vessel having a cylindrical portion defined by concentric inner and outer walls that terminates in a cylindrical opening;
- an annular rim extending outwardly from the circumference of said cylindrical opening, and defining a rim circumference concentric with said cylindrical portion and said cylindrical opening;
- a pressure resistant fitting for said reaction vessel and fixed to said rim;
- and
- said vessel having a curved outer wall portion between said concentric outer wall and said rim circumference.
Dependencies are inferred from the claim text.