Patents by Inventor Lamar H. Stewart

Lamar H. Stewart 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).

  • Automatically fed distillation still
    Patent number: 4585522
    Abstract: Heated distillation still for separating ethanol-water mixtures divided into an upper solar absorbent vaporization section and a lower pre-heating section by a vaporization floor, float means to automatically control the ethanol-water feed to the lower portion of the preheating section when distillation is taking place, means to evenly distribute the ethanol-water mixture on the vaporization floor, means to heat the ethanol-water mixture in the distillation chamber, and means to remove or recycle residual aqueous liquid from the lower end of the vaporization section.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: April 29, 1986
    Assignee: Lamar H. Stewart
    Inventors: Boyd R. Beck, LaMar H. Stewart, Steven L. Tapp, Don L. Anderson, Jr., Daniel E. Nuffer
  • Automatically fed distillation and fractionation system
    Patent number: 4364797
    Abstract: An electrically and/or solar heated distillation and fractionation system for separating ethanol-water mixtures comprised with an insulated inclined vaporization chamber divided into an upper solar absorbent vaporization section and a lower pre-heating section by a vaporization floor, float means to automatically control the ethanol-water feed to the lower portion of the preheating section when distillation is taking place, means to evenly distribute the ethanol-water mixture on the vaporization floor, means to heat the ethanol-water mixture in the distillation chamber, a packed fractionation column through which the vapors from the distillation chamber must pass, means to control the temperature at the top of the fractionation column-condensing means to recover and/or recycle distillate exiting to the upper portion of the distillation column and means to remove or recycle residual aqueous liquid from the lower end of the vaporization section.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: December 21, 1982
    Assignee: Stil Sun Oil, Inc.
    Inventors: Boyd R. Beck, Lamar H. Stewart, Steven Tapp, Don L. Anderson, Jr., Daniel E. Nuffer
  • Automatically fed distillation and fractionation system
    Patent number: 4314890
    Abstract: An electrically and/or solar heated distillation and fractionation system for separating ethanol-water mixtures comprised with an insulated inclined vaporization chamber divided into an upper solar absorbent vaporization section and a lower pre-heating section by a vaporization floor, float means to automatically control the ethanol-water feed to the lower portion of the preheating section when distillation is taking place, means to evenly distribute the ethanol-water mixture on the vaporization floor, means to heat the ethanol-water mixture in the distillation chamber, a packed fractionation column through which the vapors from the distillation chamber must pass, means to control the temperature at the top of the fractionation column-condensing means to recover and/or recycle distillate exiting to the upper portion of the distillation column and means to remove or recycle residual aqueous liquid from the lower end of the vaporization section.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: February 9, 1982
    Assignee: Lamar H. Stewart
    Inventors: Boyd R. Beck, Lamar H. Stewart, Steven Tapp, Don L. Anderson, Jr., Daniel E. Nuffer