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
Biosensor kit
Control system for an internal combustion engine
Method of manufacturing III-nitride crystal
Coordinated garbage collection for raid array of solid state disks
Beaconing and superframe structure for millimeter wave wireless technologies
Positive electrode for secondary battery, and secondary battery
Candle holder
  Randomly Featured Patents
Method and apparatus for refrigeration control and display
Mixed alkylthionocarbamates flotation collectors and ore dressing methods in which the collectors are employed
Blood pump
Electrically programmable read-only memory array
Battery-powered wireless remote-control motorized window covering assembly having a microprocessor controller
Evacuation unit and method for controlling the release of gas from a body cavity following surgery
Germicidal toilet seat
Parallel sheet processing apparatus
Low top moccasin toe walker
Conveyor for inverting web of material