Patents by Inventor Marvin P. Schwartz

Marvin P. Schwartz 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).

  • Means for removing gas from a hydronic system
    Patent number: 5676740
    Abstract: A compact set of circular, wire-formed brushes, within a housing, provides the surfacing upon which, and in which, air bubbles can coalesce for subsequent venting thereof from the housing, and the housing has porting formed therein to accommodate a through-flow of an aqueous solution, of a hydronic system or the like. A sleeve-type diffuser, having a multiplicity of holes formed therein, encloses and supports the set of brushes, and diffuses and distributes the housing-admitted liquid or vapor.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: October 14, 1997
    Assignee: ITT Fluid Technology Corporation
    Inventors: Marvin P. Schwartz, Chalard Bunluaphob, Prasert Buranatum
  • Double-wall tube heat exchanger
    Patent number: 4744412
    Abstract: A heat exchanger utilizes a double walled heat transfer tube wherein the inner tube has a knurled external surface engaging the inner surface of an outer tube to provide multiple interconnected leak paths. The inner and outer tubes are attached to inner and outer tube sheets by roller expansion.
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: May 17, 1988
    Assignee: ITT Corporation
    Inventors: Sung C. Kim, Marvin P. Schwartz, Howard Y. Yoon
  • Double-walled finned heat transfer tube
    Patent number: 4348794
    Abstract: A double-walled finned heat transfer tube is provided for use in heat exchangers. The heat transfer tube includes an inner tube inserted within an externally finned outer tube. The assembly is subjected to a crimping operation which produces radial convexities along the length of the outer tube which serve to lock the inner tube and outer tube together in intimate heat conducting relationship and which produces radial concavities between the inner and outer tubes which serve as leakage channels. The crimping operation also produces grooves in the external finned surface which improves heat transfer between the assembly and an external medium.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: September 14, 1982
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Sung C. Kim, Marvin P. Schwartz
  • Double-walled finned heat transfer tube
    Patent number: 4232735
    Abstract: A double-walled finned heat transfer tube is provided for use in heat exchangers. The heat transfer tube includes an inner tube inserted within an externally finned outer tube. The assembly is subjected to a crimping operation which produces radial convexities along the length of the outer tube which serve to lock the inner tube and outer tube together in intimate heat conducting relationship and which produces radial concavities between the inner and outer tubes which serve as leakage channels. The crimping operation also produces grooves in the external finned surface which improves heat transfer between the assembly and an external medium.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: November 11, 1980
    Inventors: Sung C. Kim, Marvin P. Schwartz