Patents by Inventor Steven E. Krulick

Steven E. Krulick 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).

  • Tube mat heat exchanger
    Patent number: 4349070
    Abstract: A heat exchanger adapted particularly for use in embedded radiant heating systems wherein the tube ends are joined to the manifolds by the use of tube-stretching inserts.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: September 14, 1982
    Inventors: Michael F. Zinn, Steven E. Krulick, Ronald W. Leonard
  • Tube mat heat exchanger
    Patent number: 4270596
    Abstract: A heat exchanger adapted particularly for use in embedded radiant heating systems and including a plurality of webbed tube mats and associated manifolds, wherein the webs are separated from their adjacent tubes along tear lines at at least two longitudinally spaced portions of the mat.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: June 2, 1981
    Assignee: Bio-Energy Systems, Inc.
    Inventors: Michael F. Zinn, Steven E. Krulick, Ronald W. Leonard
  • Solar heating apparatus
    Patent number: 4176654
    Abstract: A solar collector simple to install in the field comprises a mat formed of side-by-side extruded EPDM rubber strips having parallel hollow tubes, with inwardly diverging recesses extending along the strips so that the strips can be removably adhered to an insulating base without cement protruding above the tubes. A one-piece extrusion seals an edge of upper light transmissive panel, covers a side of the collector and seals the collector atop a roof or like surface.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: December 4, 1979
    Assignee: Bio-Energy Systems, Inc.
    Inventors: Michael F. Zinn, Steven E. Krulick