A utility knife includes a knife body that has a knife frame and an ergonomic outer casing attached to the knife frame. The utility knife also includes a retractable blade holder that holds a blade. The retractable blade holder extends out of and retracts into the knife body and may also be selectively oriented at a first angle and a second angle relative to a longitudinal axis of the knife body.

A switchblade includes a casing that defines a cavity. A blade having a cutting edge has a retracted position in which the cutting edge is inside the cavity and a deployed position in which the cutting edge is outside the cavity. A spring is operably connected to the blade to bias the blade to the deployed position. An actuator is releasably engaged with the blade, and operation of the actuator allows the blade to move between the retracted position and the deployed position. A safety lever that extends through at least a portion of the casing lever has a lock position that prevents operation of the actuator and an unlock position that permits operation of the actuator.

A foldable saw includes, on a saw handle body, a latch body made of spring wire and including a coil section, a stop pin section, a latch section, and an operation section. The saw handle body includes at least a seating recess, a pin hole, and a receiving groove. The latch body is configured, in the state of being attached to the saw handle body, such that the latch section located in front of the coil section enters into the receiving groove by spring bias, and that the latch section retreats against the spring bias in response to an operation of the operation section located in the rear of the coil section.

A folding knife has an elongated blade having a pivot end and an opposed free end, the pivot end of the blade pivotally connected to a handle, the blade being movable between a closed position in which the blade is protectively received by the handle and an open position in which the blade extends away from the handle, a back lock element pivotally connected to the handle and having a block portion, the back lock element movable between a locked position in which the block portion operably contacts a portion of the pivot end of the blade to prevent movement of the blade from the open position to the closed position, and an unlocked position in which movement of the blade from the open position to the closed position is enabled, and a safety element movable between an engaged position and a disengaged position.

A lock-blade knife for cooking purposes comprises a housing, a blade pivotally attached to the housing and a locking mechanism. The blade is rotatable relative to the housing between a closed position and a least one cutting position. The locking mechanism is configured to lock the blade in the at least one cutting position. The locking mechanism comprises a biasing member, an engagement structure, and a grasping member. The engagement structure is disposed on the blade, and the grasping member is displaceable from a locking position into a releasing position. The grasping member is biased into the releasing position. The grasping member is in engagement with the engagement structure in the locking position when cutting to lock the blade in position. The blade is rotatable between the cutting position and the closed position when the grasping member is manually displaced into the releasing position.

A self-defense pocket knife with handle of suitable proportion to be grasped in closed fist and a conveyance system configured for the emergency manual conveyance of a blade from a position for storage to a position for use without requiring the user to appreciably alter or compromise grip upon the handle during the course of such conveyance.

A folding knife is described herein. The folding knife includes a release actuator that provides three knife positions: a secured closed position, a secured open position, and an intermediate unsecured position in between the two secured positions, and that opens and closes the folding knife easily and safely. A triple-purpose pivot ring provides an index finger grip, an attachment point, and a pivoting mechanism. The release actuator allows for one-handed operation. A blade holder comprises a blade lock that has two positions, one of which locks the blade into position in the blade holder, while the other position unlocks it. The blade lock may be a push button that unlocks the blade while pressing it down, and that automatically return the lock into its locked position by action of a spring, in particular a leaf spring.

A folding knife with a locking mechanism is provided. The folding knife includes a locking spring that interfaces with a recess in the blade to bias the blade from being pivoted out of the handle. A button interfaces with the locking spring to actuate the locking spring interfacing with the blade.

A self-defense pocket knife with handle of suitable proportion to be grasped in closed fist and a conveyance system configured for the emergency manual conveyance of a blade from a position for storage to a position for use without requiring the user to appreciably alter or compromise grip upon the handle during the course of such conveyance.

A switchblade includes a casing having first and second ends and a cavity. A blade has a cutting edge with a retracted position in which the cutting edge is inside the cavity and a deployed position in which the cutting edge extends outside of the cavity from the first end. A spring is operably connected to the blade to bias the blade to the deployed position. A lock at the first end has a hold position that engages with the blade to prevent movement of the blade with respect to the casing and a release position that permits movement of the blade with respect to the casing. An actuator at the second end extends through at least a portion of the casing. A lever connects the actuator to the lock so that the actuator can reposition the lock between the hold position and the release position.