Patents by Inventor John Wirt

John Wirt 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).

  • CMP POLISHER HEAD OVER-ROTATION RESTRICTOR
    Publication number: 20230166382
    Abstract: A CMP tool including a polisher head with an over-rotation restrictor mechanism is operative to counteract a rotational difference between an inner body of the polisher head and an outer body of the polisher head that are coupled by a rolling seal. In one arrangement, the over-rotation restrictor mechanism comprises a plurality of rotation lock pins provided with a rotational component of the polisher head, e.g., the outer body, and a corresponding plurality of restrictor receptacles provided with another rotational component of the polisher head, e.g., the inner body, wherein the rotation lock pins may be engaged with respective restrictor receptacles for arresting the rotational difference between the two rotational components.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventors: John Wirt Hornbrook, Christopher Lee Schutte
  • Method and apparatus for molding composite articles
    Patent number: 8845947
    Abstract: A method of molding a composite article includes providing a first floating mold that has a fluid backing, wherein the fluid defining the fluid backing is stored in a fluid chamber positioned beneath the first floating mold, providing a second non-floating mold that does not include a fluid backing, and sealing the first floating mold to the second non-floating mold to define a molding chamber thereinbetween.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 30, 2014
    Assignee: VEC Industries, L.L.C.
    Inventors: John Wirt, Jay Hood
  • METHOD AND APPARATUS FOR MOLDING COMPOSITE ARTICLES
    Publication number: 20100327496
    Abstract: A method of molding a composite article includes providing a first floating mold that has a fluid backing, wherein the fluid defining the fluid backing is stored in a fluid chamber positioned beneath the first floating mold, providing a second non-floating mold that does not include a fluid backing, and sealing the first floating mold to the second non-floating mold to define a molding chamber thereinbetween.
    Type: Application
    Filed: August 31, 2010
    Publication date: December 30, 2010
    Applicant: VEC Industries, L.L.C.
    Inventors: John Wirt, Jay Hood
  • Method and apparatus for molding composite articles
    Patent number: 7785518
    Abstract: A method of molding a composite article includes providing a first floating mold that has a fluid backing, wherein the fluid defining the fluid backing is stored in a fluid chamber positioned beneath the first floating mold, providing a second non-floating mold that does not include a fluid backing, and sealing the first floating mold to the second non-floating mold to define a molding chamber thereinbetween.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: August 31, 2010
    Assignee: VEC Industries, L.L.C.
    Inventors: John Wirt, Jay Hood
  • Method and apparatus for molding composite articles
    Publication number: 20080185754
    Abstract: A method of molding a composite article includes providing a first floating mold that has a fluid backing, wherein the fluid defining the fluid backing is stored in a fluid chamber positioned beneath the first floating mold, providing a second non-floating mold that does not include a fluid backing, and sealing the first floating mold to the second non-floating mold to define a molding chamber thereinbetween.
    Type: Application
    Filed: January 18, 2008
    Publication date: August 7, 2008
    Inventors: John Wirt, Jay Hood