Patents by Inventor Charles L. Kain

Charles L. Kain 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: 7581321
    Abstract: In one aspect, a folding knife has a locking mechanism coupled to the blade such that pivoting the blade from the closed position to the open position, and vice versa, causes corresponding rotation of the locking mechanism about the pivot axis of the blade. The locking mechanism is operable to selectively lock the blade in the open position and optionally to selectively lock the blade in the closed position.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: September 1, 2009
    Assignee: GB II Corporation
    Inventor: Charles L. Kain
  • Publication number: 20040154170
    Abstract: A releasable, double locking knife including a body having a cavity and a pair of opposed arms, each having a free end extending into the cavity, and a blade connected to the body for rotation between the closed position wherein the blade is disposed substantially within the cavity and an opened position wherein the blade is disposed substantially outside the cavity. The opposed arms engage side surfaces of the blade when the blade is in the closed position to resist movement of the blade out of the closed position. The arms further engage stop surfaces on the blade when the blade is in the opened position, thereby locking the blade in the opened position. The blade further includes a release mechanism for moving the arms out of locking engagement with the blade to permit movement of the blade out of the opened position.
    Type: Application
    Filed: February 10, 2004
    Publication date: August 12, 2004
    Inventors: Charles L. Kain, Steven A. McCowen
  • Patent number: 6701621
    Abstract: A releasable, double locking knife including a body having a cavity and a pair of opposed arms, each having a free end extending into the cavity, and a blade connected to the body for rotation between the closed position wherein the blade is disposed substantially within the cavity and an open position wherein the blade is disposed substantially outside the cavity. The opposed arms engage side surfaces of the blade when the blade is in the closed position to resist movement of the blade out of the closed position. The arms further engage stop surfaces on the blade when the blade is in the open position, thereby locking the blade in the open position. The blade further includes a release mechanism for moving the arms out of locking engagement with the blade to permit movement of the blade out of the open position.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: March 9, 2004
    Inventors: Charles L. Kain, Rohit C. Chopra
  • Publication number: 20030208908
    Abstract: A releasable, double locking knife including a body having a cavity and a pair of opposed arms, each having a free end extending into the cavity, and a blade connected to the body for rotation between the closed position wherein the blade is disposed substantially within the cavity and an open position wherein the blade is disposed substantially outside the cavity. The opposed arms engage side surfaces of the blade when the blade is in the closed position to resist movement of the blade out of the closed position. The arms further engage stop surfaces on the blade when the blade is in the open position, thereby locking the blade in the open position. The blade further includes a release mechanism for moving the arms out of locking engagement with the blade to permit movement of the blade out of the open position.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 13, 2003
    Inventors: Charles L. Kain, Rohit C. Chopra