Patents by Inventor Herbert I. Britt

Herbert I. Britt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Plant simulation and optimization software apparatus and method using dual execution models
    Patent number: 5666297
    Abstract: A software system simulates and optimizes a processing plant design. The software system includes a plurality of equipment models for simulating each piece of equipment in the processing plant design. A sequential modular simulation routine executes the equipment models in a first mode to define a first set of values of the operating parameters of the processing plant design. An optimization routine executes the equipment models in a second mode. The optimization routine utilizes the first set of values for the operating parameters from the sequential simulation routine and subsequently determines values of the operating parameters at which the processing plant design is optimized. The equipment models after execution by the sequential simulation routine and optimization routine store the first and second sets of values for the operating parameters in a common plant model file.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: September 9, 1997
    Assignee: Aspen Technology, Inc.
    Inventors: Herbert I. Britt, Amol P. Joshi, Vladimir Mahalec, Peter C. Piela, Swaminathan Venkataraman
  • System for displaying different subsets of screen views, entering different amount of information, and determining correctness of input dependent upon current user input
    Patent number: 5008810
    Abstract: An input software system is used to provide input to a process simulation software device. The input software system includes an expert system which guides the user step by step through required and optional input to successfully create a flow sheet model. The expert system prevents model overspecification and logically inconsistent specifications. The expert system checks for completeness of the model specification and the reasonableness of parameter values.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: April 16, 1991
    Assignee: Process Modeling Investment Corp.
    Inventors: William C. Kessel, John L. Laclaire, Andrew L. Lui, Michael H. Locke, Herbert I. Britt
  • Process for the thermal cracking of hydrocarbons
    Patent number: 4136015
    Abstract: In a process for the thermal cracking of hydrocarbons by the introduction of liquid petroleum feedstock in atomized form into a stream of hot combustion products formed by the combustion of fuel and oxidant in successive burner and mixing zone, constricting throat zone, a velocity acceleration diffuser zone and secondary cracking and reaction zone along the path of hot combustion product stream flow, an improvement is disclosed which comprises: effecting initial mixing, vaporization and cracking of said atomized liquid petroleum feedstock in said stream of hot combustion products in said burner and mixing zone maintained at subsonic velocity flow; effecting substantially complete mixing and vaporization in said constricting throat zone wherein said stream is maintained, at exit, at sonic velocity flow; passing said stream through a velocity acceleration diffuser zone maintained at supersonic velocity flow; passing said stream through a shock region produced by cross-sectional expansion of a diffuser zone; and
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: January 23, 1979
    Assignee: Union Carbide Corporation
    Inventors: Gerard R. Kamm, David Milks, James D. Kearns, Herbert I. Britt, Cyrus R. Khavarian