Patents by Inventor John M. Greenwood, Jr.

John M. Greenwood, Jr. 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).

  • Multiple anode capacitor
    Patent number: 6558436
    Abstract: A capacitor of hybrid construction is disclosed comprising a single cathode and multiple anode combination utilizing a variety of anode foils selected for their ability to achieve optimal performance in selected areas of the construction of a spiral would capacitor and blended in a fashion to create maximum energy density and minimum open space. In addition, a method is claimed for reducing open space left by a mandrel in producing spiral wound capacitors.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: May 6, 2003
    Assignee: CM Components, Inc.
    Inventors: John M. Greenwood, Jr., Van Ness Harwood, Jr., Oakland J. Weatherup
  • Multiple anode high energy density electrolytic capacitor
    Patent number: 5963418
    Abstract: A multiple anode capacitor (10) having offset terminal leads or strips which maximizes capacitance achieved per volume occupied by the capacitor. More specifically, the invention including a multiple anode aluminum electrolytic capacitor including a cylindrical casing (42), a header (45) crimped to the open end of the casing, the header including a primary anode terminal (41) and a primary cathode terminal (44). Disposed within the casing is a wound or coiled capacitor body (28) having plural anode foils (11, 12, 13), a capacitor foil (14), and dielectric paper separator layers (15, 16) disposed between the cathode and the anodes. In a preferred embodiment, three juxtapositioned anode foils are used, the foils being made from a high purity porous aluminum foil. In addition, each of the dielectric paper separator layers is formed of two kraft capacitor tissue papers (15a, 15b, 16a, 16b).
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: October 5, 1999
    Assignee: CM Components, Inc.
    Inventors: John M. Greenwood, Jr., Van Ness Harwood, Jr., Oakland J. Weatherup
  • Multiple anode capacitor
    Patent number: 5949638
    Abstract: A capacitor of hybrid construction is disclosed including single cathode and multiple anode combination utilizing a variety of anode foils selected for their ability to achieve optimal performance in selected areas of the construction of a spiral would capacitor and blended in a fashion to create maximum energy density and minimum open space.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: September 7, 1999
    Assignee: CM Components, Inc.
    Inventors: John M. Greenwood, Jr., Van Ness Harwood, Jr., Oakland J. Weatherup