Louis T. Staats - Lincoln University PA James A. Bristow - Elkton MD Anil P. F. Noronha - West Chester PA Gregory E. Murphy - Erial NJ
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
B01D 3502
US Classification:
210767
Abstract:
A cap for sealing pressure vessels is disclosed. The present invention permits a nominal closure to be formed by hand tightening and a substantially higher force to be applied to a cap by a separate clamp mechanism, thereby forming a pressure seal. In certain preferred embodiments, means for providing a process flow through a hole in the seal and filtering means are also provided as part of the cap assembly. A preferred application of the cap of the present invention is for the sealing of sample vessels used for supercritical fluid extraction of compounds from a solid matrix for subsequent chemical analysis. Methods of supercritical fluid extraction are also disclosed. The present invention thus provides methods and apparatus whereby the placement of a sample into a pressurized system may be automated and monitored to ensure adequate seals have been created and maintained within such pressurized systems.
Michael S. James - New Castle DE Meliss A. Powell - West Chester PA Mark A. Nickerson - Landenberg PA Louis T. Staats - Lincoln University PA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
F17C 902
US Classification:
62 505
Abstract:
A method and apparatus for accurately regulating the compressibility of a compressible fluid in a pumping system utilizing a single zone of controlled cooling. Cryogenic cooling is employed for cooling a pump head and a thermally integrated heat exchanger such that a single source of cryogenic fluid can be applied to the heat exchanger to increase the bulk modulus of the compressible fluid just prior to and during the pumping process.
Banner Associates Reading, PA Jun 2013 to Aug 2013 Carpenter's AssistantBancorp Bank Wilmington, DE May 2012 to Aug 2012 Graphic DesignerCucina Di Napoli Newark, DE Jul 2007 to May 2012 Head Server
Education:
University of Delaware Newark, DE Jan 2013 Bachelor of Fine Arts
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