152 results about "Blade knife" patented technology

A fixed-blade knife includes a unitary blade having an implement, a tang, and a pivot region between the implement and the tang. The unitary blade is disposed between a pair of parallel and spaced-apart side pieces that pivot to cover or expose the implement. In the pivoted position wherein the implement is exposed, the side pieces form part of the handle that is used to grasp the knife. A locking structure locks the side pieces in a selectable position, and a limit structure prevents overrotation of the side pieces.

A lens injector includes a thin sheet-like lens glide member, mounted upon a tapered knife, that maintains a wedge-shaped opening in the cornea upon withdrawal of the knife. The lens is thereafter advanced under the cornea by a plunger in the injector that maintains the lens in place as the injector device is removed. A multiple point blade knife may simultaneously make a set of several small, connected incisions. The fact that each blade has only a limited depth means that the resulting wide incision can be created without the need to penetrate deeply into the cornea, as would be necessary with a single-point blade of the desired width. This is especially beneficial for creating Z-shaped incisions, which become self-sealing when internal pressure pushes the inner layer against the outer layer. This shortens the process significantly, which then results in less trauma to the eye and streamlines the entire procedure.

A fixed blade knife, includes a handle, and a blade, coupled to the handle. The blade has a tang received within the handle. A plurality of lashing points defined by passages extending through both the handle and the tang are provided. The knife may be carried in a sheath with a knife sharpener removably coupled to the sheath.

An exchangeable blade knife includes a handle and a blade adapted to be removably coupled to the handle. A bias mechanism is coupled to the handle, the bias mechanism applying a bias on the blade in a lateral direction to press the blade against the handle. The blade may be removed from the handle without also removing the bias mechanism from the handle.

A replaceable-blade knife useful as a carpet knife or utility knife, and having a handle with a spare-blade holder movably mounted therein, and a blade-clamping bar for securing an active cutting blade at one end of the handle. A locking means is provided to lock the holder in a protective closed position, and alternatively to release the holder to an open position by movement of the bar, and to enable ready access to blades in the holder.

An exchange blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.

The invention relates to a non-woven fabric punching and forming device, which includes a pneumatic punching device, a knife die device, an electric transmission device and a motor box, the pneumatic punching device is arranged on the upper part of the device, and the knife die device is connected to the pneumatic punching device The lower part of the die cutter device is supported and connected on the top platform of the motor box, and the electric transmission device is arranged on the upper part of the motor box. Compared with the prior art, the present invention replaces the manual section cutting and manual ironing, and completes the punching at the same time as the section cutting, which improves the production efficiency and ensures the punching quality of the product. In addition, the punching knife edge is hidden in the In the positioning hole, it will not pose a safety hazard to the operator, ensuring production safety.

A fixed-blade knife with a knife body comprising a blade having a cutting edge and an elongated handle exptending from the blade. A guard is pivotally coupled to the knife body and has a first and second position relative to the knife body. In other embodiments, the guard is slidably disposed along the knife body. In the first position, the guard is positioned adjacent the blade to at least partially cover the cutting edge. In the second position, the guard is positioned adjacent the handle to expose the cutting edge. A sharpening element may be disposed within the guard to hone and/or sharpen the cutting edge when the guard is pivoted relative to the cutting edge.

Combined knife and wire cutter apparatus including both fixed blade knife and folding knife embodiments. Both such embodiments comprise an elongate handle including at least one notch along an edge thereof for receiving a segment of a wire; and an elongate member pivotably secured to the handle and having a first end portion and a second end portion, the elongate member pivotable about a pivot axis in a first rotational direction with the first end portion moving away from the handle and in a second rotational direction with the first end portion moving toward the handle, the second end portion including a cutting edge situated for traversing the at least one notch when the elongate member is pivoted about the pivot axis.

A knife is provided. The knife comprises a handle and a utility blade mounted to a blade holder, the blade holder mounted to the handle and configured to move relative to the handle between a retracted position, in which the utility blade does not extend from the handle, and an extended position, in which the utility blade extends from the handle in an operative position. The knife further comprises a tanto-style blade mounted to the handle and configured to move relative to the handle between a closed position, in which a cutting edge of the tanto-style blade does not extend from the handle, and an open position, in which the tanto-style blade extends from the handle in an operative position.

The invention discloses a steel scrap crushing device, which comprises a main body, a first crushing knife roller set and a second crushing knife roller set, a feeding port is arranged directly above the main body, and the first crushing knife roller set is installed on the main body The upper end of the inner cavity, the front end of the feed port extends obliquely to directly above the first crushing knife roller set, the second crushing knife roller set is fixedly installed directly below the first crushing knife roller set, and the first crushing knife roller set A material guide channel is set between the crushing knife roller set and the second crushing knife roller set, and a first motor is fixedly suspended on the outer wall of the upper end of the main body, and the first motor rotates with the first crushing knife roller set through gear transmission. The second motor is fixedly installed on the outer wall of the lower end of the main body, and the second motor is connected with the second crushing knife roller group through a large gear and a pinion. The invention is simple in operation, and adopts a multi-stage cutting and crushing method to cut and crush scrap steel in all directions, and the crushing is sufficient and thorough.

A utensil or tool specifically adapted for manually slicing ripened plantains, overcoming the previous method of a single blade knife, producing one slice at a time. The plantain slicer includes a frame which encompasses an area generally conforming to the shape and size of a typical plantain as well as other similar shaped vegetables and fruits. The frame has two opposing arched longitudinal sides which are interconnected with a multitude of spaced, substantially parallel arranged ribs, set at a diagonal. The ribs are sufficiently thin to cut diagonally through a pealed ripened plantain, vegetable and fruit. The user will have the ability to grasp the utensil by the handles which are located at each end of the frame and slice through the plantain by pushing down. The end result is uniform diagonal slices in one single action, allowing for even cooking. Openings in the handles permit the hanging of the utensil for storage.

A sickle cutting apparatus includes a plurality of triple finger knife guards which are arranged side by side along the cutter bar to cooperate with a reciprocating sickle bar carrying a row of double blade knife sections and a set of hold-down members carrying hold-down fingers. The hold-down members are arranged alternately as a single finger and double finger with each hold-down member being connected to the cutter bar in association with a respective triple guard. In this way the hold-down fingers are arranged at alternate guard fingers leaving the intervening guard fingers open. The system includes both pointed guards with no tang and stub guard so that the user can select either to be used with the hold-downs. The hold down fingers are all individually adjustable so that the double hold-down have two adjustment screws which can be individually operated causing flexing of the bridge between the double fingers.

The invention discloses a cutting method and a cutting tool of a glass substrate of a flexible organic light-emitting diode display. The cutting tool comprises a pair of blade knives, a scraper knife and a cutter wheel. The scraper knife is positioned between the blade knives and the cutter wheel. The method comprises the following steps: the cutting tool is positioned above a flexible material; along a cutting direction, the pair of blade knives arranged side by side are positioned on the front, wherein the blades of the blade knives have acute angles; the cutting tools are started, and the two blade knives cut the flexible material along the cutting direction from one end of the flexible material; the scraper knife arranged behind the blade knives peels the cut flexible material between the two blade knives from the glass substrate; with the action of the scraper knife, a gap with width equal to the spacing between the two blade knives is cut on the flexible material; the cutter wheel behind the scraper knife performs a scoring process on the glass substrate exposed after the peeling of the flexible material; and a splitting process is carried out, such that the glass substrate is completely separated. According to the invention, the cutting of the flexible material and the glass substrate is completed in one step with the combined cutting tool and necessary accessories.