Patents by Inventor Arnold M. Schaffer

Arnold M. Schaffer 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).

  • Regenerating zeolitic cracking catalyst
    Patent number: 5358630
    Abstract: A method for countering the adverse effect of contaminating metals on a crystalline aluminosilicate catalyst comprising contacting the catalyst with a reducing gas under suitable conditions. In a preferred embodiment, the catalyst contains antimony.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: October 25, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Harold W. Mark, John S. Roberts, Arnold M. Schaffer
  • Cracking catalyst and process
    Patent number: 4765884
    Abstract: A composition of matter, effective as cracking catalyst, comprises zeolite and a matrix material comprising aluminum phosphate, being substantially free of alumina and magnesia. A process for cracking hydrocarbon-containing feed streams having an initial boiling point of at least about 400.degree. F. (at atmospheric pressure) employs the above cracking catalyst.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: August 23, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Darrell W. Walker, Arnold M. Schaffer
  • Method for measuring the surface area of a solid
    Patent number: 4416154
    Abstract: A method for enhancing the intensity of a photoacoustic signal by surrounding a solid with a gas having a normal boiling point at least about 25.degree. C. below the temperature at which the photoacoustic effect is being measured and a critical temperature not less than about 2.degree. C. By utilizing a second gas, selected from the permanent gases having a critical temperature not greater than about -73.degree. C., the surface area of a solid can be measured in accordance with procedures and relationships herein described.
    Type: Grant
    Filed: August 11, 1981
    Date of Patent: November 22, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Arnold M. Schaffer, Joseph G. Gallagher, Jr.
  • Photoacoustic method and apparatus for measuring intensity of electromagnetic radiation
    Patent number: 4187026
    Abstract: Electromagnetic radiation is detected, using a photoacoustic cell employing a uniform absorber of radiation which absorbs independently of wavelength.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: February 5, 1980
    Assignee: Phillips Petroleum Company
    Inventors: Arnold M. Schaffer, John A. Favre
  • Regenerating zeolitic cracking catalyst
    Patent number: RE37789
    Abstract: A method for countering the adverse effect of contaminating metals on a crystalline aluminosilicate catalyst comprising contacting the catalyst with a reducing gas under suitable conditions.In a preferred embodiment, the catalyst contains antimony.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: July 16, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Harold W. Mark, John S. Roberts, Arnold M. Schaffer
  • Regenerating zeolitic cracking catalyst
    Patent number: RE37842
    Abstract: A method for countering the adverse effect of contaminating metals on a cystalline aluminosilicate catalyst comprising contacting the catalyst with a metallic passivating agent to effect some passivation of the effects of the contaminant metals and with a reducing gas under suitable conditions. In a preferred embodiment, the catalyst contains antimony.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: September 17, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Brent J. Bertus, Harold W. Mark, John S. Roberts, Arnold M. Schaffer