| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 030156000 | Detachable blade type | 14 |
| 20100175267 | UTILITY KNIFE INCLUDING A LOCKING MECHANISM AND/OR RATCHETING MECHANISM - A utility knife includes a handle and a pivotably connected blade retainer for retaining a blade. An external, symmetrically toothed gear is fixed relative to one of the handle or the blade retainer, and a locking mechanism is associated with the other. The locking mechanism cooperates with the gear to lock the blade retainer in one of a plurality of fixed positions and includes pawls located in channels having converging ends. A manually actuable release mechanism is associated with the locking mechanism for unlocking the blade retainer to permit pivotal movement. Furthermore, a manually actuable blade release mechanism is associated with a blade locking mechanism contained in the blade retainer, for locking and releasing the blade when exchanging a dull blade for a replacement blade. | 07-15-2010 |
| 20100263214 | Blade lock and release mechanisms for utility knives - A folding utility knife with a blade lock and release mechanism is provided, and the knife comprises: a handle pivotally connected to a blade holding compartment, the handle comprising at least two side walls forming a space, the space of the handle is designed to encase at least a portion of the blade holding compartment during a folded position, the blade holding compartment comprising at least one side wall having at least two internal cavities, the first cavity for holding a blade with at least two indentations, at least a portion of the blade holding compartment designed to be situated within the space of the handle during a folded position, the blade holding compartment comprises a front end, a rear end and a faceplate for covering the internal cavities, the front end of the blade compartment holder and at least a portion of the faceplate forming an opening at the front end of the blade holding compartment which allows a portion of the blade to protrude from the blade holding compartment; and a blade lock and release device comprising a moveable arm having front and rear portions, and the rear portion of the arm is pivotally attached adjacent to the rear end of the blade holding compartment, the arm is designed to fit within the second cavity of the blade holding compartment, the front portion of the arm having at least two protrusions for engagement and disengagement with the blade, the protrusions of the arm contacting the indentations of the blade during a locked position, the protrusions of the arm being moved away from the indentation | 10-21-2010 |
| 20110167647 | CUTTING IMPLEMENTS - A folding knife for applying a cutting action is provided that includes a blade assembly having a guard configured to cover the cutting edge of the blade when the knife is not in use. The guard is maintained in a normally blade covered position by a resilient member. The blade guard has a guard actuator for providing at least one motion for a user to move the blade guard from the normally blade covered position to an un-guarded or cutting position. The folding knife comprises a housing having the blade assembly locked in a closed position and is pivotably associated with the housing. The knife further comprises an actuator for unlocking the blade assembly from the closed position to a locked open position. The actuator further comprises a locking tab and the blade assembly further comprises a locking slot. The locking tab is configured to lock the blade guard in the un-guarded or cutting position. The housing further comprises a resilient member urging the blade assembly in the open position. Upon depression of the actuator, the blade assembly will automatically open to the locked open position from the locked closed position. Other embodiments are also described. | 07-14-2011 |
| 20120023753 | KNIFE HAVING A LOCKING MECHANISM - A method and apparatus for a knife having a handle, a blade and a locking mechanism whereby the mechanism provides a pivot point between the handle and blade holder and at least two selective locking positions between the blade and the handle. In one embodiment the knife is a utility knife including a blade holder that houses the blade and pivots with the blade relative to the handle. | 02-02-2012 |
| 20120030949 | FOLDING UTILITY KNIFE - A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder includes a main wall and guard wall mounted together and adapted to receive a blade therebetween and a locking lever pivotally mounted on the blade holder to lock the blade in place. | 02-09-2012 |
| 20120055029 | MULTI-BLADE UTILITY KNIFE - A foldable hand tool having a blade holder mounted with a handle for movement from folded and unfolded positions. The blade holder has an opening adapted to receive blades of different sizes. The foldable hand tool further has a locking mechanism to lock the holder in an open position. A blade holder lock engages a resilient arm formed in the side wall of the handle. | 03-08-2012 |
| 20120102757 | Safety Cutter Apparatus - A cutter apparatus includes a housing, multiple tools mechanically coupled to the housing, at least one of the tools including a cutting device, and a slider and lock wheel mechanically coupled to the housing and configured to selectively release only one of the tools at a time from being secured within the housing. | 05-03-2012 |
| 20130247382 | RETRACTABLE UTILITY KNIFE - A utility knife has a handle and a blade holder that holds a utility blade for selective removal and replacement of the utility blade. The blade holder is pivotally carried by the handle for pivotal movement in an arcuate path relative to the handle between a retracted position and an extended position. | 09-26-2013 |
| 20130255087 | UTILITY KNIFE WITH REPLACEABLE BLADE - The present invention first provides a utility knife with a replaceable blade, comprising a knife handle, a blade holder, a blade and a locking device that locks the blade in the blade holder. The blade holder and the blade are enabled to switch between a first position and a second position. When the blade holder and the blade are in the first position, the blade is used for cutting operation, and when the blade holder and the blade are in the second position, both the blade holder and the blade are received in the knife handle. The utility knife further includes a restriction means which is thus arranged as, when the blade holder is in the second position and the locking device is in unlocked state, the restriction means is used for preventing the detachment of the blade from the blade holder by confining the movement of the blade relative to the blade holder. The present invention also provides a folding utility knife with a replaceable blade and a retractable utility knife with a replaceable blade, and a utility knife with multiple tools and replaceable blades. | 10-03-2013 |
| 20130318798 | POCKET TOOL, IN PARTICULAR A POCKET KNIFE - The invention relates to a pocket tool with a housing, a compartment region, pins ( | 12-05-2013 |
| 20140259686 | Pocket Safety Cutter - A pocket knife (or pocket safety cutter) having a housing (or handle) and a folding/blade holder portion includes or is configured with one or more of, for example: a blade change mechanism with multiple safety features, a locking mechanism (for the folding/blade holder portion), and independently operable protective guards (for the folding/blade holder portion). | 09-18-2014 |
| 20160001452 | RETRACTABLE UTILITY KNIFE - A utility knife has a handle and a blade holder that holds a utility blade for selective removal and replacement of the utility blade. The blade holder is pivotally carried by the handle for pivotal movement in an arcuate path relative to the handle between a retracted position and an extended position. | 01-07-2016 |
| 030157000 | End tang connected | 2 |
| 20080222896 | FIELD STRIPPABLE KNIFE - A field-strippable folding knife which can be disassembled without special tools is disclosed. The knife has a blade a tang, and a handle. The handle comprises a male handle portion and a female handle portion which can be joined together. The tang may have two stops. The stops are engaged by a blade locking system to fix the blade in an open position and a closed position. | 09-18-2008 |
| 20100242287 | Three-dimensional pocketknife puzzle - A pocketknife puzzle or kit is provided having a blade and spring, sandwiched between two handle sections and held in place by three pins. The pins are held in place by friction, resulting from the tension of the spring against the pivoting end of the blade. The pocketknife may be assembled and disassembled without tools. | 09-30-2010 |
