Strain matched threads for a high pressure high temperature...

Details Strain matched threads for a high pressure high temperature... Strain matched threads for a high pressure high temperature...

2007-03-06

2007-03-06

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Ultra high pressure generating device

C425S193000, C425S330000, C425SDIG026

Reexamination Certificate

active

11175238

ABSTRACT:
The present invention includes a hydraulic cartridge and unitary frame connection for a high pressure high temperature press apparatus. The invention includes a hydraulic cartridge and a unitary frame threaded together. The hydraulic cartridge includes a cylindrical base and a truncated hollow conical section with external threads having a taper between about 2.650 and 5.650 inches per foot. The unitary frame defines an inner reaction chamber and has an outer surface. An opening in the unitary frame has internal threads extending axially substantially between the outer surface and the inner reaction chamber. The internal threads are adapted to mate with the hydraulic cartridge and the hydraulic cartridge is attached to the unitary frame along the length of the threads.

REFERENCES:
patent: 2968837 (1961-01-01), Zeitlin et al.
patent: 3257688 (1966-06-01), Levey, Jr.
patent: 6186763 (2001-02-01), Scanlan
patent: 6336802 (2002-01-01), Hall

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