Patents by Inventor John B. Welker

John B. Welker 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).

  • Method of making an evaporator or evaporator/condenser
    Patent number: 5533259
    Abstract: An improved evaporator or evaporator/condenser for use in refrigeration or heat pump systems including first and second spaced, pressure resistant headers (10, 12); a plurality of elongated tubes (20) of flattened cross-section extending in parallel, spaced relation between and in fluid communication with the headers (10, 12) and serpentine fins (34) extending between and bonded to adjacent ones of the tubes (20). The tubes (20) and fins (34), between the headers (10, 12), define a non-planar configuration having an apex (80). A condensate trough (82) is aligned with and opens towards the apex (80) to receive condensate dripping therefrom.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: July 9, 1996
    Assignee: Modine Manufacturing Co.
    Inventors: Gregory G. Hughes, Leon A. Guntly, John B. Welker, David T. Hill, Jerome P. Henkes, Michael J. Reinke, C. James Rogers
  • Evaporator or evaporator/condenser
    Patent number: 5341870
    Abstract: An improved evaporator or evaporator/condenser for use in refrigeration or heat pump systems including first and second spaced, pressure resistant headers (10, 12); a plurality of elongated tubes (20) of flattened cross-section extending in parallel, spaced relation between and in fluid communication with the headers (10, 12) and serpentine fins (34) extending between and bonded to adjacent ones of the tubes (20). The tubes (20) and fins (34), between the headers (10, 12), define a non-planar configuration having a laterally directed apex (80). A condensate trough (82) is aligned with and opens towards one of the headers (12) to receive condensate dripping therefrom.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: August 30, 1994
    Assignee: Modine Manufacturing Company
    Inventors: Gregory G. Hughes, Leon A. Guntly, John B. Welker, David Hill, C. James Rogers, Jerome P. Henkes, Michael J. Reinke
  • Evaporator or evaporator/condenser
    Patent number: 5279360
    Abstract: An improved evaporator or evaporator/condenser for use in refrigeration or heat pump systems including first and second spaced, pressure resistant headers (10, 12) ; a plurality of elongated tubes (20) of flattened cross-section extending in parallel, spaced relation between and in fluid communication with the headers (10, 12) and serpentine fins (34) extending between and bonded to adjacent ones of the tubes (20). The tubes (20) and fins (34), between the headers (10, 12), define a nonplanar configuration having an apex (80). A condensate trough (82) is aligned with and opens towards the apex (80) to receive condensate dripping therefrom.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: January 18, 1994
    Assignee: Modine Manufacturing Co.
    Inventors: Gregory G. Hughes, Leon A. Guntly, John B. Welker, David T. Hill, Jerome P. Henkes, Michael J. Reinke, C. James Rogers