Patents by Inventor Clyde L. Machamer

Clyde L. Machamer 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).

  • Patent number: 7588683
    Abstract: A column for liquid chromatography includes a chamber adapted to receive packing medium. Openings in the chamber allow fluid to pass through it. Porous plugs in the chamber retain the packing medium. A piston and one porous plug are movable within the chamber to compress the packing medium. A fitting engages the piston and is adjustably movable for moving the piston.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: September 15, 2009
    Assignee: Agilent Technologies, Inc.
    Inventors: Frank M. Willis, Clyde L. Machamer
  • Patent number: 7101477
    Abstract: A column for liquid chromatography includes a chamber adapted to receive packing medium. Openings in the chamber allow fluid to pass through it. Porous plugs in the chamber retain the packing medium. A fitting has a contact surface that engages a landing area on the chamber surrounding one of the openings. Engagement of the contact surface with the landing area forms a metal to metal seal between the fitting and the chamber. A method of sealing a column for liquid chromatography is also disclosed. The method involves a chamber containing packing medium, the chamber having an opening surrounded by a landing area. The method includes providing a compression fitting having a contact surface and compressing the contact surface against the landing area to form a fluid tight seal between the compression fitting and the chamber.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: September 5, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Frank M. Willis, Clyde L. Machamer