Patents by Inventor Thomas T. Nagl

Thomas T. Nagl 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).

  • Variable watt density layered heater
    Patent number: 8901464
    Abstract: A layered heater is provided that includes at least one resistive layer having a resistive circuit pattern, the resistive circuit pattern defining a length, a width, and a thickness, wherein the thickness varies along the length of the resistive circuit pattern and/or the width of the resistive circuit pattern for a variable watt density. The present disclosure also provides layered heaters having a resistive circuit pattern with a variable thickness along with a variable width and/or spacing of the resistive circuit pattern in order to produce a variable watt density.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: December 2, 2014
    Assignee: Watlow Electric Manufacturing Company
    Inventors: Kevin Ptasienski, James McMillin, Thomas T. Nagl, Rolando O. Juliano
  • Methods of forming a variable watt density layered heater
    Patent number: 8008607
    Abstract: Methods of forming a layered heater are provided that comprise at least one resistive layer comprising a resistive circuit pattern, the resistive circuit pattern defining a length, a thickness, and a spacing, wherein the thickness varies along the length of the trace of the resistive circuit pattern for a variable watt density. The methods include achieving the variable thickness by varying a dispensing rate of a conductive ink used to form the resistive circuit pattern, varying the feed rate of a target surface relative to the dispensing of the ink, and overwriting a volume of conductive ink on top of a previously formed trace of the resistive circuit pattern.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: August 30, 2011
    Assignee: Watlow Electric Manufacturing Company
    Inventors: Kevin Ptasienski, James McMillin, Thomas T. Nagl, Rolando O. Juliano
  • Variable watt density layered heater
    Patent number: 7132628
    Abstract: A layered heater is provided with a resistive layer having a resistive circuit pattern, the resistive circuit pattern defining a length and a thickness, wherein the thickness varies along the length of the resistive circuit pattern for a variable watt density. The present invention also provides layered heaters having a resistive circuit pattern with a variable thickness along with a variable width and/or spacing of the resistive circuit pattern in order to produce a variable watt density. Methods are also provided wherein the variable thickness is achieved by varying a dispensing rate of a conductive ink used to form the resistive circuit pattern, varying the feed rate of a target surface relative to the dispensing of the ink, and overwriting a volume of conductive ink on top of a previously formed trace of the resistive circuit pattern.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 7, 2006
    Assignee: Watlow Electric Manufacturing Company
    Inventors: Kevin Ptasienski, James McMillin, Thomas T. Nagl, Rolando O. Juliano