Patents by Inventor Meredith J. Angwin

Meredith J. Angwin 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).

  • Catalytic monolith, method of its formulation and combustion process using the catalytic monolith
    Patent number: 4337028
    Abstract: A catalyst system in which the catalytic composition comprises a catalytically active material which is homogeneously interspersed throughout a monolith structure of ceramic composition. The composition is shaped into a unitary monolith which is employed as the catalyst structure. In the method the active material or materials are admixed with a ceramic material, which can be either active or inactive, in finely divided form and then shaped into the monolith structure.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: June 29, 1982
    Assignee: The United States of America as represented by the United States Environmental Protection Agency
    Inventors: Meredith J. Angwin, William C. Pfefferle
  • Catalytic monolith and method of its formulation
    Patent number: 4295818
    Abstract: A catalyst system in which the catalytic composition comprises a catalytically active material which is homogeneously interspersed throughout a monolith structure of ceramic composition. The composition is shaped into a unitary monolith which is employed as the catalyst structure. In the method the active material or materials are admixed with a ceramic material, which can be either active or inactive, in finely divided form and then shaped into the monolith structure.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: October 20, 1981
    Assignee: United States of America
    Inventors: Meredith J. Angwin, William C. Pfefferle, John P. Kesselring
  • Means for protecting underground electrical equipment from thermal runaway
    Patent number: 4097682
    Abstract: Underground electrical equipment such as a transformer or cable is prevented from thermal runaway by back-filling the trench in which it is laid with a soil which includes water entrapped in highly water-absorbent hydrophilic polymeric gel particles soaked with water. The water-soaked particles preferably are coated with a water-impermeable film. The water may also be entrapped in liquid form in small balloon-like containers. Also, a water impermeable sheath may be formed around the back-fill soil to minimize evaporation from the particles.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: June 27, 1978
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Elijah R. Perry, Meredith J. Angwin, Mario Rabinowitz, John F. Shimshock