Low headroom coke drum deheading device

Patent 6264829 Issued on July 24, 2001. Estimated Expiration Date:

July 24, 2018. 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.

Abstract Claims Description Full Text

Patent References

Oxygen addition to a coking zone and sludge addition with oxygen addition
Patent #: 5041207
Issued on: 08/20/1991
Inventor: Harrington, et al.

Closure apparatus for pipes and vessels
Patent #: 5048876
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Inventor: Wallskog

Sludge addition to a coking process
Patent #: 5068024
Issued on: 11/26/1991
Inventor: Moretta, et al.

Coke drum unheading device
Patent #: 5098524
Issued on: 03/24/1992
Inventor: Antalfy, et al.

Oxygen addition to a coking zone and sludge addition with oxygen addition
Patent #: 5110449
Issued on: 05/05/1992
Inventor: Venardos, et al.

Pressure vessel closure device
Patent #: 5228825
Issued on: 07/20/1993
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Delayed coker drumhead handling apparatus Patent #: 5336375
Issued on: 08/09/1994
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Inventors

Assignee

Fluor Corporation

Application

No. 346610 filed on 11/30/1994

US Classes:

208/131, Soaking196/46, REFINING202/211, Kiln202/246, Hinged202/252, Bottom208/127, Suspension system208/132, With heating in tubular confined stream220/211Motor driven

Examiners

Primary: Myers, Helane

Attorney, Agent or Firm

Fish & Associates, LLP

International Class

C10B 025/20

Abstract

A coke drum head is hinged to a coke drum body using a compound joint such as a trammel pivot, and the head is moved between open and closed positions using an actuator. In moving between open and closed positions, the head traces out a non-circular path which reduces the required headroom relative to a head using a standard pivot.