Patents by Inventor Darrel Ralph

Darrel Ralph 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: 8099870
    Abstract: The folding knife of the present invention includes a handle having first and second handle members that are maintained in spaced, parallel relation to one another by spacing elements that define a groove therebetween. The blade is pivotally attached to the handle at its tang portion and is movable into and out of the groove between its fully open and fully closed positions. A coil spring, or equivalent, may be interconnected between the tang and handle to provide an assisted opening mechanism. A blade lock includes a user actuated button that passes through an elongated slot formed through one of the handle members and through a circular opening formed through a bias plate that is positioned within the handle, and a plunger element that is spring biased in a direction transverse to the longitudinal axis of the blade.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: January 24, 2012
    Inventor: Darrel Ralph
  • Patent number: 7698821
    Abstract: The folding knife of the present invention includes a handle having first and second handle members that are maintained in spaced, parallel relation to one another by spacing elements that define a groove therebetween. The blade is pivotally attached to the handle at its tang portion and is movable into and out of the groove between its fully open and fully closed positions. A coil spring, or equivalent, may be interconnected between the tang and handle to provide an assisted opening mechanism. A blade lock includes a user actuated button that passes through an elongated slot formed through one of the handle members and through a circular opening formed through a bias plate that is positioned within the handle, and a plunger element that is spring biased in a direction transverse to the longitudinal axis of the blade.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: April 20, 2010
    Inventor: Darrel Ralph
  • Publication number: 20070169354
    Abstract: The folding knife of the present invention includes a handle having first and second handle members that are maintained in spaced, parallel relation to one another by spacing elements that define a groove therebetween. The blade is pivotally attached to the handle at its tang portion and is movable into and out of the groove between its fully open and fully closed positions. A coil spring, or equivalent, may be interconnected between the tang and handle to provide an assisted opening mechanism. A blade lock includes a user actuated button that passes through an elongated slot formed through one of the handle members and through a circular opening formed through a bias plate that is positioned within the handle, and a plunger element that is spring biased in a direction transverse to the longitudinal axis of the blade.
    Type: Application
    Filed: January 20, 2006
    Publication date: July 26, 2007
    Inventor: Darrel Ralph
  • Patent number: 6427335
    Abstract: A folding knife having a locking member which is moved by a plunger and coil spring into a locking position, engaging a shoulder on the tang portion of a blade to prevent pivotal movement of the blade away from the fully open position. The locking member is pivotally mounted at one end in a recess in one of the handle members and extends across the cavity between the members to a manually engageable end in a through opening in the other handle member.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: August 6, 2002
    Assignee: Camillus Cutlery Company
    Inventor: Darrel Ralph
  • Publication number: 20020088124
    Abstract: A folding knife having a locking member which is moved by a plunger and coil spring into a locking position, engaging a shoulder on the tang portion of a blade to prevent pivotal movement of the blade away from the fully open position. The locking member is pivotally mounted at one end in a recess in one of the handle members and extends across the cavity between the members to a manually engageable end in a through opening in the other handle member.
    Type: Application
    Filed: January 8, 2001
    Publication date: July 11, 2002
    Inventor: Darrel Ralph