A utility knife having a quick release feature, whereby a resilient blade engaging member biased to the locked position engages an opening in the blade, and when the blade engaging member is pushed against the end of a guide slot it automatically releases from the blade allowing the blade to be removed from the knife handle. The knife handle structure reinforces the throat of the knife, by providing a double channel configuration comprising an outer channel with a blade retaining surface and an ...

A blade holding device comprising a housing and a blade holder positioned within the housing wherein the blade holder is movable in a direction along a length of the housing. The device also comprises an actuator positioned within the housing and associated with the blade holder to move the blade holder along the length of the housing wherein the actuator moves parallel to the blade holder within the housing. Another embodiment of the blade holding device comprises a housing and a blade holder w...

The present blade device invention comprises an elongated housing wherein the housing comprises forward and rearward end portions and wherein the forward end portion defines an opening. The invention further comprises a blade holder moveable along a length of the housing toward the forward end portion and an actuator moveable along the length of the housing toward the forward end portion wherein the actuator is associated with the blade holder to impart movement to the blade holder toward the fo...

A knife having a blade made of stainless steel and a hollow handle made of stainless steel. The hollow handle has right and left handle halves which are butt-joined to each other at their joining faces. The handle halves define therebetween a hollow portion which is filled with a filler, which may be river sand, for adjustment of the overall weight balance of the knife. The blade and the handle are butt-joined into one piece at their confronting end edges.

A knife is provided with a built-in battery box therein and a bulb mounted on the outlet of the blade. Batteries are received in the battery box and are selectively and electrically connected between the bulb and a button which is movably mounted on side of the knife, such that when the button is electrically engaged between the battery and the bulb, the bulb is lit so as to enable a user to work in a place with poor visibility.

A knife for personal use has a liner made up of a pair of parallel walls spaced apart along a transverse axis at right angles to the longitudinal extent of the walls. A hollow hub extends along the axis and abuts bearing surfaces in the walls and also abuts a bearing surface in a blade disposed between the walls. The hub has at least a first notch extending radially of the axis. A second notch in one of the walls extending radially of the axis is adapted to register with the first notch. A third...

A hand-held jack-knife according to the invention essentially comprises a blade and a handle articulated around an axis of rotation. This articulation is formed by a hollow bush the axial opening thereof passes completely through the handle and which is fixedly secured in rotation to the table. The blade can be operated by means of knobs. A stop catch may be formed by a tab, the free end of which may engage in housings of the bush-knob system. This knife finds its application in the fields of, f...

The invention relates to a knife comprising a blade with a blade tang at one end, a handle and an insert, which can be assembled by joining the insert and the blade tang, and when assembled, the insert and the blade tang are fitted into a hole in the handle having a cross-section substantially equal to the cross-section of the insert portion to be fitted within the handle. The invention is characterised in that at least part of the surface of the portion (6) of the insert (2) to be fitted within...

A safety utility knife has a weighted pawl which, upon a slip of the knife, disengages from a blade holder to allow the latter to be retracted by a spring. The tooth of the blade holder engages the blocking surface of the pawl with only line or point contact and the blocking surface itself is tangential to a circle centered on the pawl pivot axis. The pawl spring is a coil spring extending in the direction of displacement of the blade holder and generally corresponds to the retraction spring.

A power actuated knife with a single blade attached to a free end of a support, the other end of the support being attached to the handle. One end of the motor casing is attached to the handle through a vibration absorbing bearing and the motor at the other end has a rotatable oscillating connection to a bracket which engages the support at a location removed from its attachment to the handle whereby an oscillating sinusoidal motion is applied to the blade through the support to set the entire b...