Abstract: This control device of a machine tool is provided with: a storage unit which stores in advance a nominal diameter and a nominal length of a blade part of a rotary tool; an image-capturing instruction unit which outputs an image-capturing instruction to an image-capturing device; a model creation unit which generates model data of the blade part of the tool on the basis of the nominal diameter and the nominal length stored in the storage unit, generates model data of a tool shank and holder on the basis of an image stored in the image-capturing device, and creates model data of the rotary tool on the basis of the generated model data of the blade part and the generated model data of the tool shank and holder.

Abstract: The fastened seatbelts cutting device for transport vehicle, especially automotive vehicles, featuring bushing-shaped housing with an explosive charge or a gas generator inside, the charge and generator connected with a system activating the belt cutting drive, also featuring a cutting knife and a slot for this knife or blade and a slot to house the belt being cut, has a pusher (6) located between the gas generator (4), chamber (3), and the cutting segment (7), sealed with respect to the working chamber (8) in the guide chamber (5), and the blade (9) cutting edge (21) is one of the sides of triangle connected with the blade (9) body seated in the cutting segment (7).

Abstract: In one exemplary embodiment of the invention, the device includes an outer housing. The outer housing includes an internal cavity, at least one opening and a distal end. The distal end is configured to be near the construction material during use. The device also includes an internal piston that includes a tip. The internal piston is received within the internal cavity and is configured for reciprocal motion within the outer housing. The device further includes a handle coupled to the outer housing and a trigger mechanism. The trigger mechanism is configured to release pressurized gas within a blast chamber. The pressurized gas drives the internal piston through the opening in the outer housing to produce a hole in the construction material.

Abstract: This patent discloses a system to release a seatbelt in a vehicle automatically. The system may include a seatbelt sensor, mishap sensors, a controller, and a guillotine unit. The controller may communicate signals with the seatbelt sensor and mishap sensors and the guillotine unit may receive signals from the controller. The guillotine unit may include a webbing guide, a gas chamber having a supply of pressurized gas, and a gas supply line connected between the webbing guide and the gas chamber. The webbing guide may include spring biased piston and a blade attached to the piston at a positioned above a seatbelt webbing of the seatbelt. On receiving a cut signal from the controller, pressurized gas from the gas chamber may be released to cause the piston to move the blade through the seatbelt webbing to slice through seatbelt webbing.

Abstract: A pyrotechnically-ruptureable composite structural component, intended to transmit forces between first and second structural elements, has an elongate pyrotechnic detonation separation component incorporated in the structural component for breaking the structural component and separating the first and second elements. The structural component has a first part in which the pyrotechnic separation component is incorporated and which is able to be connected to the first element, and a second part that connects to the second element. The first and second parts are rigidly assembled via their free ends, which are the opposite ends to the first and second elements respectively. The rigid assembly has a damper arranged between the free ends of the first and second elements so as to damp a detonation shock propagating to the free end of the first part when the pyrotechnic separation component is detonated.

Abstract: A system for stopping a spinning table saw blade is comprised of a pin assembly disposed adjacent to a saw blade assembly for stopping a spinning saw blade. A receiving block is disposed on a side of the saw blade opposing the pin assembly for receiving the tip of the pin assembly. A driving assembly is coupled to the pin assembly for driving the pin assembly into the spinning saw blade into the receiving block. Finally, a sensing assembly is coupled to at least one of the saw blade assembly and the driving assembly for sensing encroachment of a user's hand in a pre-defined zone. In use, upon sensing a user's hand the sensing assembly signals the driving assembly to stop the spinning saw blade by driving the pin assembly through the saw blade and into the receiving block.

Abstract: A pyromechanical cutting element has a housing (2) in which an electrical conductor (3) is arranged, a cutting plunger (5) with a cutting tool (8) to cut through the electrical conductor (3), and pyrotechnic charge (13) to drive the cutting plunger (5), with the cutting tool (8) bending over the electrical conductor (3) after cutting through it and forming a bending tongue (18) that sticks out from the conductor (3) in a way that interrupts the conductor (3). The electrical conductor (3) has a cross-sectional area reduction in the longitudinal direction (4) consisting of two transverse sides and two longitudinal sides. The cutting tool (8) first cuts through the cross-sectional area reduction (4) just on one transverse side and upon further advancement bends over the longitudinal sides at least in part, and, upon further advancement, the cutting tool (8) clamps the bending tongue (18) thus created.

Abstract: The present invention is to improve the mechanical characteristics of a pyrotechnical parachute line cutting device. By enforcing the mechanical traction on the electrical connection wire by Kevlar reinforcement cords. The flexible electrical wire will be connected straight to the propellant detonator to avoid wire connections and fix the detonator trigger straight on the flexible wire. The reefing line will be cut by the blade but also, to secure the cutting action, be melt in the head of the cutter blade after explosion due to the use of special knife material size and an adapted pyrotechnical charge.

Abstract: Apparatus and methods for fitting mechanical parts to minimize prevent free play are described. An apparatus having a piston is designed so as to restrain the piston before actuation, and so as to allow the piston to gain momentum before striking an object. The described apparatus are applicable to devices involving shearable elements. An embodiment of the invention relates to a pyrotechnically activated valve incorporating such features to minimize free play in conjunction with such features so as to restrain the piston and also allow the piston to gain momentum.

Abstract: The powered pipe cutter and the pipe flaring tool both have a piston slidably mounted in a cylinder. The cylinder has a top end closed by a top end plug. A crimped cartridge bore in the top end plug communicates with a gas expansion chamber. A bolt and firing pin assembly are attached to the cylinder top end. The pipe cutter includes a shear housing with a pipe passage connected to the rod end of the cylinder. A shear plate is connected to the piston and moves with the piston to shear pipes. The pipe flaring tool includes a pipe clamp assembly with a pipe passage and a female flaring surface connected to the cylinder rod end. A male flaring surface on the piston cooperates with the female flaring surface to flare pipe ends.

Abstract: A severing apparatus for use with a battery cable is provided. The severing apparatus includes a housing that holds an initiator and a severing element. The battery cable is located through a lateral bore formed in the housing. The severing element is disposed on one side of the battery cable. A deformable blocker can be disposed on the opposite side of the battery cable. When it is desired to sever the battery cable and thereby discontinue the supplying of electrical power by the battery, such as when a predetermined vehicle collision occurs, the initiator is triggered and causes the severing element to move. Movement of the severing element removes a severed battery cable segment. Movement of the severing element and the severed battery cable segment is stopped using the blocker when present. The blocker can be part of a shell that surrounds the housing. Alternatively, the blocker can be held in the housing.