| KAI U.S.A., Ltd., dba Kershaw Knives Patent applications |
| Patent application number | Title | Published |
|---|
| 20110237168 | BLADE SHARPENING SYSTEM - A knife sharpening system includes a substantially planar bed defining a first plane, a support base rigidly coupled to the bed and defining a second plane lying at a selected angle with respect to the first plane, first and second end rails are rigidly coupled to respective ends of the bed and extend outward therefrom. A reference surface is provided on an end of the second end rail, defining a plane that lies parallel to the second plane. A bench stone is received on the bed, and supported thereby so that a surface of the bench stone is parallel to the bed, and lies at the selected angle, relative to the second plane. Apertures formed in the first and second end rails form a cradle configured to receive a sharpening steel, and support the sharpening steel at the selected angle, relative to the second plane. | 09-29-2011 |
| 20100132198 | FOLDING KNIFE HAVING A LOCKING MECHANISM - A folding knife includes a handle element, a blade rotatably coupled to the handle element, and a locking mechanism operatively coupled between the blade and the handle element. The locking mechanism includes first and second pairs of toggles positioned, respectively, on first and second sides of the blade, each pair of toggles being configured to move into a locked position when the blade is rotated to an open position. A handle of the knife may include the handle element and the first and second pairs of toggles. | 06-03-2010 |
| 20090288301 | SAFETY LOCK MECHANISM FOR FOLDING KNIVES - A safety lock mechanism for a folding knife includes a lock plate movably coupled to a handle of the knife for movement along a first direction from an engaged position to a disengaged position, the lock plate biased towards the engaged position. A rocker element is coupled to the lock plate for movement from a locked position to an unlocked position and is configured to prevent translational movement of the lock plate to the disengaged position when the rocker element is in the locked position. A control button coupled to the rocker element allows a user to move the rocker element from the locked position to the unlocked position and to move the lock plate towards the disengaged position to thereby release a blade of the knife. | 11-26-2009 |
| 20090193664 | LOCKING MECHANISM FOR A FOLDING KNIFE - A locking mechanism for a folding knife includes a first locking element movably coupled to a handle of the knife for movement along a substantially flat recessed bearing surface from an unlocked position to a locked position and a second locking element having a central axis substantially parallel to a pivot axis of the knife, the second locking element biased in a direction substantially along the central axis for movement from an extended position to a depressed position and being adapted to receive a portion of the first locking element to prevent movement of the second locking element to the depressed position and thus inadvertent deployment or closure of the blade when the first locking element is in the locked position. | 08-06-2009 |
| 20080302842 | RATCHET TYPE POCKET CLIP - A pocket clip is attached at a first end to a tool such as a folding knife. A roller assembly is provided at a second end of the clip with a portion extending toward the tool. The roller assembly includes a ratchet wheel between a pair of elastomeric roller wheels. A pawl engages the ratchet wheel and limits rotation of the roller assembly such that the assembly rotates in one direction around an axis transverse to a longitudinal axis of the tool, and resists rotation in an opposite direction. When the tool is positioned in a user's pocket, a panel of the pocket engages the roller assembly, which rotates substantially freely, permitting the pocket panel to slide easily between the pocket clip and the surface of the tool. However, the roller assembly resists movement of the pocket panel in the opposite direction, holding the tool securely in the pocket. | 12-11-2008 |
| 20080250656 | COMPOSITE KNIFE BLADE - A composite knife blade includes a cutting-edge piece of a first alloy, a back piece of a second alloy different from the first alloy, the cutting-edge piece and the back piece are brazed together at a serpentine joint. The cutting-edge piece has a high Rockwell hardness value, as compared to a hardness of the back piece. A method of manufacture of the knife blade includes fine blanking the back piece of from a sheet of the first alloy, laser cutting the cutting-edge piece from a sheet of the second alloy, and brazing the first piece to the second piece to form a composite blade. The composite blade is then cooled from the brazing temperature to an austenizing temperature of the cutting-edge piece, and quenched, to harden the cutting-edge piece. | 10-16-2008 |
