US Patent 11772287 Folding knife

A folding knife includes a handle, a first liner inside the handle, and a second liner inside the handle and opposed to the first liner. A blade has a tang and a cutting edge, and the tang of the blade pivotally connects the blade between the first and second liners. The blade has a retracted position in which the cutting edge is inside the handle and a deployed position in which the cutting edge is outside the handle. An actuator is at least partially between the first and second liners, and a spring is between the first and second liners and in compression against the actuator so that the spring biases the actuator toward the tang of the blade.