Patents by Inventor Hyman R. Davis

Hyman R. Davis 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).

  • Solvent recovery process for processing of hydrocarbons
    Patent number: 4214975
    Abstract: A solvent recovery portion of a solvent refining plant for producing oil products such as lubricating oils from a crude source of hydrocarbons such as petroleum hydrocarbons wherein there are provided at least three continuous flash stages or zones for which each successive stage or zone operates at pressure and temperature levels higher than the preceding one, the vapor from any successive stage or zone being employed as the heating medium in the preceding one to effect the vaporization in said preceding stage or zone.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: July 29, 1980
    Assignee: The Lummus Company
    Inventors: Hyman R. Davis, Wagih I. Nasr, Siegfried M. Roethlin, Harold D. Sherwood
  • Gravity settling
    Patent number: 4133758
    Abstract: Solids are separated from a liquid in a gravity settler provided with inclined solid intercepting surfaces to intercept the solid settling path to coalesce the solids and increase the settling rate. The intercepting surfaces are inverted V-shaped plates, each formed from first and second downwardly inclined upwardly curved intersecting conical sections having their apices at the vessel wall.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: January 9, 1979
    Assignee: The Lummus Company
    Inventors: Hyman R. Davis, R. H. Long, A. A. Simone