This invention a significant improvement to the mechanism of “Out of the Front” knives, also known as OTF knives. This invention implements the use of linear guide rails which has never been used in the OTF knives of the prior art. The linear guide rail technology that is the subject of this invention significantly improves on the prior art by allowing for many different blade profiles, while virtually eliminating any friction between the housing and knife handle. This is a significant advantage in the industry, since people tend to value knives that can house larger blades but keeping the handle relatively small, while maintaining rigidity after repeated use. Other blade deploying technologies lack the rigidity and wear resistance that linear guide rail technology offers. This invention is a significant improvement on the prior art in the knife industry because it makes the end users product last much longer than previously designed knives.

A double-action bayonet platform is an apparatus used to position a rapidly deployable and stowable backup weapon onto a firearm, constituting an improvement upon existing static bayonets. The double-action bayonet platform utilizes a carrier body, a blade member, a blade actuating mechanism, and at least one weapon attachment mechanism to mount an automatically extendable and retractable blade to the fore-end of a rifle as a modular attachment to any weapon accessory rail systems. The at least one weapon attachment mechanism is externally connected to the carrier body to enable the user to attach the carrier body to a weapon. The blade member is slidably mounted into the carrier body and is operably engaged to the blade actuating mechanism. The blade actuating mechanism is configured to bistably traverse between an extended position and a retracted position, enabling a used to rapidly deploy or stow the blade member as needed.

A double-action bayonet platform is an apparatus used to position a rapidly deployable and stowable backup weapon onto a firearm, constituting an improvement upon existing static bayonets. The double-action bayonet platform utilizes a carrier body, a blade member, a blade actuating mechanism, and at least one weapon attachment mechanism to mount an automatically extendable and retractable blade to the fore-end of a rifle as a modular attachment to any weapon accessory rail systems. The at least one weapon attachment mechanism is externally connected to the carrier body to enable the user to attach the carrier body to a weapon. The blade member is slidably mounted into the carrier body and is operably engaged to the blade actuating mechanism. The blade actuating mechanism is configured to bistably traverse between an extended position and a retracted position, enabling a used to rapidly deploy or stow the blade member as needed.

Utility knife with a replaceable blade and a system and method for determining the End of Life of the blade comprising one or more sensors for detecting blade use, a communication unit adapted to establish a wireless connection to a computer cloud network and to send and receive information via wireless transmission to be stored and processed by a control system with a control CPU and a control memory, the information being a series of values recorded by said sensor by time, stored in the control memory as data sets using machine learning or artificial intelligence for determining common or similar values of recorded parameters in the stored data sets or of values calculated from these parameters according to a predefined logic, for use as reference values indicating the End of Life of the blade.

Utility knife with a replaceable blade and a system and method for determining the End of Life of the blade comprising one or more sensors for detecting blade use, a communication unit adapted to establish a wireless connection to a computer cloud network and to send and receive information via wireless transmission to be stored and processed by a control system with a control CPU and a control memory, the information being a series of values recorded by said sensor by time, stored in the control memory as data sets using machine learning or artificial intelligence for determining common or similar values of recorded parameters in the stored data sets or of values calculated from these parameters according to a predefined logic, for use as reference values indicating the End of Life of the blade.

The present invention is directed to a reciprocating culinary knife assembly. The assembly is battery operated and operates a steak knife in reciprocating fashion. An ergonomic oversized handle portion is designed for users with arthritis or other debilitating conditions that render handling small implement difficult. A single removable battery pack is contained within a battery receiving chamber formed at one end of the housing for the assembly, the pack designed for easy snap fit within the chamber. The housing is made of a rigid material which is covered with a pliable material such as rubber or silicon to enhance gripping and further reduce discomfort. A pressure sensing mechanism operates as an on/off switch to enhance user safety.

The present invention is directed to a reciprocating culinary knife assembly. The assembly is battery operated and operates a steak knife in reciprocating fashion. An ergonomic oversized handle portion is designed for users with arthritis or other debilitating conditions that render handling small implement difficult. A single removable battery pack is contained within a battery receiving chamber formed at one end of the housing for the assembly, the pack designed for easy snap fit within the chamber. The housing is made of a rigid material which is covered with a pliable material such as rubber or silicon to enhance gripping and further reduce discomfort. A pressure sensing mechanism operates as an on/off switch to enhance user safety.

A utility knife configured with a retractable cutting blade that is extended and retracted by a blade actuation mechanism. The blade actuation mechanism employs a blade trigger assembly and a blade carriage assembly that are operably connected in variety of configurations. Certain configurations of the blade actuation mechanism utilize a rack-and-pinion arrangement between the blade trigger assembly and the blade carriage assembly, which enables the automatic retraction of the cutting blade as the cutting blade is lifted from the cutting surface.

A utility knife configured with a retractable cutting blade that is extended and retracted by a blade actuation mechanism. The blade actuation mechanism employs a blade trigger assembly and a blade carriage assembly that are operably connected in variety of configurations. Certain configurations of the blade actuation mechanism utilize a rack-and-pinion arrangement between the blade trigger assembly and the blade carriage assembly, which enables the automatic retraction of the cutting blade as the cutting blade is lifted from the cutting surface.

A knife has a first part and a second part movably engaged to the first part along a path between an open position in which a housing interior is accessible and a closed position. A holding surface is fixed on and jointly slidable with the second part, and a third part is fixable on the first part, An actuator is movable on the second part between an actuated position and an unactuated position. An arm integral with or fixed on the third part is operatively engaged by the actuator and displaced on movement of the actuator between the unactuated position and the actuated position between a locking position securing the second part in one of the open and closed positions and a release position.