U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Dual shell pressure balanced vessel

Patent 5167930 Issued on December 1, 1992. Estimated Expiration Date: Icon_subject April 20, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2114238

2462517

2865615

2997435

3079993

3282459

3515520

3554707

3667216

Reactor vessel Patent #: 5027971
Issued on: 07/02/1991
Inventor: Perryman

Inventor

Assignee

Application

No. 870746 filed on 04/20/1992

US Classes:

422/112, Control element is fluid pressure sensitive165/154, NON-COMMUNICATING COAXIAL ENCLOSURES422/202, Heat-exchange jacket surrounding reaction chamber422/242, Positive pressure type422/307Heat treating vessel with heating means

Examiners

Primary: Warden, Robert J.
Assistant: Kim, Christopher

Attorney, Agent or Firm

Foreign Patent References

  • 252128 DE. 12/21/2013
  • 851356 DE. 10/21/2013
  • 1542005 DE. 02/21/1966
  • 2841900 DE 07/21/1979
  • 3735767 DE 07/21/1988
  • 1446711 FR. 11/21/1966
  • 1566431 FR. 05/21/1969
  • 2092273 FR. 01/21/1972
  • 0157963 SU 02/21/1963
  • 2033781 GB 05/21/1980

International Classes

G05D 016/00
F28D 021/00
B01J 003/00

Abstract

A dual-wall pressure balanced vessel for processing high viscosity slurries at high temperatures and pressures having an outer pressure vessel and an inner vessel with an annular space between the vessels pressurized at a pressure slightly less than or equivalent to the pressure within the inner vessel.

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