Resources Contact Us Home
Locking mechanism for a folding knife

Image Number 3 for United States Patent #5685079.

A folding knife is disclosed having a unique locking mechanism which prevents the blade from being closed when the knife is in use. The locking mechanism provides a rolling lock carried by the knife mechanism having a lever that is movable between two positions. In an unlocked position, the blade may be rotated between the extended and closed positions. With the lever in the locked position, the blade is held in the extended position. The blade provides a base having a cam surface and a notch in that surface. The rolling lock provides a cylindrical body having a notch. When the rolling lock lever is in the unlocked position and the blade is extended, the notch in the cylindrical body of the rolling lock occupies the same space as the notch in the cam surface of the blade, allowing the cam surface of the base of the blade to rotate through the notch in the rolling lock. When the rolling lock lever is in the locked position, the notch in the cylindrical body of the rolling lock is rotated away from the blade, and the cylindrical body of the rolling lock is present in the notch in the blade. As a result, the blade will not pivot unless sufficient force is applied to the blade to shear the cylindrical body of the rolling lock.

  Recently Added Patents
Reoccuring keying system
Process for producing liquid crystal element, and liquid crystal element
Satellite mounting pole
Biometric data display system and method
Housekeeping cart
Vehicle control apparatus
Process of preparing functionalized polymers via enzymatic catalysis
  Randomly Featured Patents
Antenna apparatus with inner antenna and grounded outer helix antenna
Apparatus and method for starting and controlling a motor
Restraint system with impact recognition, taking into account environmental influences
Adaptive scheduling technique for mission critical systems
Battery voltage alarm apparatus
Hydromechanical transmission with hydrodynamic drive
Wafer support structure for a wafer backplane with a curved surface
Time-base correction in a video recording/playback system
High-activity mutants of butyrylcholinesterase for cocaine hydrolysis and method of generating the same
Dual handle mixing faucet