Patents by Inventor Christian Randhahn

Christian Randhahn 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).

  • Self-venting valve
    Patent number: 7219819
    Abstract: A valve assembly has a valve housing and a valve core body movable therewithin for providing a smooth and continuous outflow of liquid from a container, which may be unvented and rigid, through a liquid-out passageway, and provides an air-back passageway for drawing external air into the container. In a preferred embodiment, the core is rotatable within the housing by one-handed actuation. The air-back passageway is preferably a channel provided on the surface of the core body, and the liquid-out passageway is preferably provided between openings in the core body.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: May 22, 2007
    Assignee: Nestle Waters North America, Inc.
    Inventors: J Wayne Halfacre, John S Gruver, Christian Randhahn, Charles A Curtiss, Stuart Leslie, Christopher J Matice, Stephen P DeHoff
  • Self-venting valve
    Publication number: 20050087553
    Abstract: A valve assembly has a valve housing and a valve core body movable therewithin for providing a smooth and continuous outflow of liquid from a container, which may be unvented and rigid, through a liquid-out passageway, and provides an air-back passageway for drawing external air into the container. In a preferred embodiment, the core is rotatable within the housing by one-handed actuation. The air-back passageway is preferably a channel provided on the surface of the core body, and the liquid-out passageway is preferably provided between openings in the core body.
    Type: Application
    Filed: October 24, 2003
    Publication date: April 28, 2005
    Inventors: J. Halfacre, John Gruver, Christian Randhahn, Charles Curtiss, Stuart Leslie, Christopher Matice, Stephen DeHoff
  • Dust cover for a valve
    Patent number: D516423
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: March 7, 2006
    Assignee: Nestle Waters North America, Inc.
    Inventors: J. Wayne Halfacre, John S. Gruver, Christian Randhahn, Charles A. Curtiss, Stuart Leslie, Christopher J. Matice, Stephen P. DeHoff
  • Valve with dust cover
    Patent number: D519370
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: April 25, 2006
    Assignee: Nestle Waters North America, Inc.
    Inventors: J. Wayne Halfacre, John S. Gruver, Christian Randhahn, Charles A. Curtiss, Stuart Leslie, Christopher J. Matice, Stephen P. DeHoff
  • Valve
    Patent number: D526563
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: August 15, 2006
    Assignee: Nestle Waters North America, Inc.
    Inventors: J. Wayne Halfacre, John S. Gruver, Christian Randhahn, Charles A. Curtiss, Stuart Leslie, Christopher J. Matice, Stephen P. DeHoff
  • Beverage container
    Patent number: D485493
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 20, 2004
    Assignee: Nestle Waters North America, Inc.
    Inventors: J. Wayne Halfacre, John S. Gruver, Christian Randhahn, Charles A. Curtiss, Stuart Leslie, Christopher J. Matice
  • Beverage container
    Patent number: D497550
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: October 26, 2004
    Assignee: Nestle Waters North America, Inc.
    Inventors: J. Wayne Halfacre, John S. Gruver, Christian Randhahn, Charles A. Curtiss, Stuart Leslie, Christopher J. Matice