Patents by Inventor Walter J. Shattes

Walter J. Shattes 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).

  • Enhanced heat transfer surfaces
    Patent number: 4846267
    Abstract: Aluminum alloys suitable for fabrication into plate and fin type heat exchangers are subjected to a chemical etching procedure in order to improve the heat transfer efficiency thereof. Applicants have found that a high temperature heat treatment of an aluminum alloy plate material to produce a precipitate, followed by exposure to an etching composition, results in a heat exchanger surface modified by the formation of pits. The heat exchangers so modified may be advantageously used in the reboiler/condensor section of air separation units.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: July 11, 1989
    Assignee: The BOC Group, Inc.
    Inventors: Walter J. Shattes, Nikhiles Bandyopadhyay, Paul C. Krueger
  • Process of forming enhanced heat transfer surfaces
    Patent number: 4767497
    Abstract: Aluminum alloys suitable for fabrication into plate and fin type heat exchangers are subjected to a chemical etching procedure in order to improve the heat transfer efficiency thereof. Applicants have found that a high temperature heat treatment of an aluminum alloy plate material to produce a precipitate, followed by exposure to an etching composition, results in a heat exchanger surface modified by the formation of pits. The heat exchangers so modified may be advantageously used in the reboiler/condensor section of air separation units.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: August 30, 1988
    Assignee: The BOC Group, Inc.
    Inventors: Walter J. Shattes, Nikhiles Bandyopadhyay, Paul C. Krueger