Patents by Inventor David Wutz

David Wutz 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).

  • Publication number: 20220013876
    Abstract: A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper lid. The lid has a sealed electrolyte fill port. At least one electrolyte channel in the inner surface of the lid extends radially from the fill port and outwardly beyond an outer peripheral edge of the current collector. A current collector contacts an inner surface of the lid with a first electrode active material contacting the current collector. An opposite polarity active material contacts the lower plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte activates the electrode assembly.
    Type: Application
    Filed: June 25, 2021
    Publication date: January 13, 2022
    Inventors: Daniel M. Baumer, Joshua C. Ulrich, Marcus J. Palazzo, David Wutz, David Dianetti
  • Patent number: 10957884
    Abstract: A miniature electrochemical cell having a total volume that is less than 0.5 cc is described. The casing enclosure consists of a lower plate supporting a cylindrically-shaped can having an open upper end closed with a cover. The can is selectively coated with a dielectric material to provide electrical isolation of the to-be-housed active materials from the can sidewall. A glass-to-metal seal electrically isolates the lower plate from the can. An electrode assembly comprising a sandwich of cathode active material/separator/anode active material is housed in the casing. That way, the lower plate contacting the cathode active material is the positive terminal and the closing cover connected to the can and contacted to the anode active material serves as the negative cell terminal. An electrolyte filled into the casing activates the electrode assembly and the fill opening is sealed with a plug. The cell can be of either a primary or a secondary chemistry.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: March 23, 2021
    Assignee: Greatbatch Ltd.
    Inventors: David Dianetti, Gary Freitag, Robert S. Rubino, Keith W. Seitz, Ho-Chul Yun, Todd C. Sutay, Brian P. Hohl, David Wutz
  • Patent number: 7842415
    Abstract: A electrical connector for connection to an electrochemical cell is described. The connector comprises a conductive lid; a ferrule disposed within an opening through the conductive lid; a conductive center pin disposed within the ferrule; and a hermetic seal formed between the pin and an interior surface of the ferrule. A mating terminal connector adapted to be connected to the ferrule and the conductive center pin is further provided. The terminal connector is a device for easily and quickly connecting the cell to a circuit board of the kind found in an implantable medical device, such as a cardiac pacemaker, defibrillator, neuro-stimulator, drug pump, and the like.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 30, 2010
    Assignee: Greatbatch Ltd.
    Inventors: David Wutz, Gary Freitag
  • Publication number: 20100248017
    Abstract: A electrical connector for connection to an electrochemical cell is described. The connector comprises a conductive lid; a ferrule disposed within an opening through the conductive lid; a conductive center pin disposed within the ferrule; and a hermetic seal formed between the pin and an interior surface of the ferrule. A mating terminal connector adapted to be connected to the ferrule and the conductive center pin is further provided. The terminal connector is a device for easily and quickly connecting the cell to a circuit board of the kind found in an implantable medical device, such as a cardiac pacemaker, defibrillator, neuro-stimulator, drug pump, and the like.
    Type: Application
    Filed: June 11, 2010
    Publication date: September 30, 2010
    Applicant: Greatbatch Ltd.
    Inventors: David Wutz, Gary Freitag
  • Patent number: 7749651
    Abstract: A electrical connector for connection to an electrochemical cell is described. The connector comprises a conductive lid; a ferrule disposed within an opening through the conductive lid; a conductive center pin disposed within the ferrule; and a hermetic seal formed between the pin and an interior surface of the ferrule. A mating terminal connector adapted to be connected to the ferrule and the conductive center pin is further provided. The terminal connector is a device for easily and quickly connecting the cell to a circuit board of the kind found in an implantable medical device, such as a cardiac pacemaker, defibrillator, neuro-stimulator, drug pump, and the like.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: July 6, 2010
    Assignee: Greatbatch Ltd.
    Inventors: David Wutz, Gary Freitag
  • Publication number: 20090035652
    Abstract: An electrochemical cell with a non-prismatic casing and solid cathode is the present invention. The casing has a front side wall, a back side wall, a right side wall, a left side wall, a top wall, and bottom wall. The non-prismatic function is obtained by having the right and left side walls having tapered widths—wide near the top wall and narrower near the bottom wall. A solid anode having a uniform height is positioned against the front side wall and/or the back side wall. A solid cathode is surrounded by a separator and has at least a tapered height to correspond to the tapered right and left side walls wherein the anode's front side is parallel with the front major sidewall and the anode's back side is parallel with the back major sidewall. This non-prismatic design decreases the formation of voids and maximizes the amount of cathode in non-prismatic casing designs to obtain the optimal electrochemical capabilities.
    Type: Application
    Filed: July 28, 2008
    Publication date: February 5, 2009
    Applicant: Greatbatch Ltd.
    Inventors: GARY FREITAG, David Wutz
  • Publication number: 20070122697
    Abstract: A electrical connector for connection to an electrochemical cell, wherein the connector is disposed on the cell exterior, and does not occupy internal volume of the cell. The connector comprises a conductive lid including a wall, and an opening therethrough; a ferrule comprised of a conductive hollow cylindrical body having a central axis, an interior surface, an exterior surface, an outer end, and an inner end, the inner end disposed within the opening through the wall of the conductive lid; a conductive center pin disposed within the hollow cylindrical body of the ferrule and aligned along the central axis thereof, thereby forming an annular cavity between an elongated surface of the center pin and the interior surface of the ferrule; and a hermetic seal formed in the annular cavity. A mating terminal connector adapted to be connected to the ferrule and the conductive center pin is further provided.
    Type: Application
    Filed: November 28, 2005
    Publication date: May 31, 2007
    Applicant: Greatbatch, Inc.
    Inventors: David Wutz, Gary Freitag
  • Publication number: 20040023109
    Abstract: A unitary lid for the casing of an electrochemical energy storage device is described. The lid has a terminal lead ferrule and a fill port formed from a single blank in a machine process. The lid does not require any welding except for securing it to the open end of a casing container. The ferrule supports a terminal lead insulated therefrom by glass. A thermoplastic insulator material encases the ferrule and a portion of the terminal lead extending below the lid. In that manner, the insulator helps prevent contact between the anode and the cathode in the vicinity of the lid.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Inventors: Robert Rusin, James Roberts, James Biggs, David Wutz, David Panek, Tina Urso, Paul Hallifax, Dominick Frustaci, David Warchocki