A demolition shear and a piercing tip insert and nose configuration for a demolition shear which resists nose wear and resists retract forces exerted on the piercing tip insert in jamming situations and in the event of snagging of the piercing tip insert. The piercing tip insert includes first and second piercing tip halves, each half having an outer planar sidewall, a curved front wall extending laterally inward, and a bottom leg extending laterally inward defining a shearing edge and a piercing edge.

A powered threaded rod cutter configured to perform a cutting operation on a threaded rod includes a first cutting die and a second cutting die, at least the first cutting die including a recess in which a first portion of the threaded rod is at least partly receivable, an electric motor, and a planetary transmission positioned downstream of the electric motor. The powered threaded rod cutter additionally includes a drivetrain for converting a rotational output of the planetary transmission to a pivoting movement of the second cutting die, and a guide against which a second portion of the threaded rod may contact to support the threaded rod to be perpendicular relative to the second cutting die prior to the cutting operation.

The application relates to a demolition device for demolishing a concrete structure according to one embodiment. The device has a crushing blade for crushing concrete, and a cutting blade for cutting metal or a pulverizing blade for grinding concrete, and a combination blade. The device can be attached to a utility machine in a detachable manner. The crushing and cutting/pulverizing blade are separate blades from each other. The combination blade is adapted to be used for crushing concrete with the crushing blade. The combination blade is adapted to be used for cutting metal with the cutting blade or for grinding concrete with the pulverizing blade. The combination blade has abutment surface parts for the crushing and cutting/pulverizing blade. The abutment surface part for the cutting/pulverizing blade makes possible a power transmission between the cutting/pulverizing and combination blade when using the combination blade for crushing concrete. The abutment surface part for the crushing blade makes possible a power transmission between the crushing and combination blade when using the combination blade for cutting metal or grinding concrete.

The application relates to a demolition device for demolishing a concrete structure according to one embodiment. The device has a crushing blade for crushing concrete, and a cutting blade for cutting metal or a pulverizing blade for grinding concrete, and a combination blade. The device can be attached to a utility machine in a detachable manner. The crushing and cutting/pulverizing blade are separate blades from each other. The combination blade is adapted to be used for crushing concrete with the crushing blade. The combination blade is adapted to be used for cutting metal with the cutting blade or for grinding concrete with the pulverizing blade. The combination blade has abutment surface parts for the crushing and cutting/pulverizing blade. The abutment surface part for the cutting/pulverizing blade makes possible a power transmission between the cutting/pulverizing and combination blade when using the combination blade for crushing concrete. The abutment surface part for the crushing blade makes possible a power transmission between the crushing and combination blade when using the combination blade for cutting metal or grinding concrete.

A powered threaded rod cutter configured to perform a cutting operation on a threaded rod includes a first cutting die and a second cutting die. At least the first cutting die includes a recess in which a first portion of the threaded rod is at least partly receivable, an electric motor, and a planetary transmission positioned downstream of the electric motor. The powered threaded rod cutter additionally includes a drivetrain for converting a rotational output of the planetary transmission to a pivoting movement of the second cutting die, and a guide against which a second portion of the threaded rod may contact to support the threaded rod to be perpendicular relative to the second cutting die prior to the cutting operation.

A portable rescue device (1), such as a spreader device, cutter device or combination device with a cutting and spreading function, for portable rescue operations includes a housing (2), a first hand grip (3) and a second hand grip (4) for two-handed actuation of the rescue device. An electric motor is in the housing (2) and a battery (15) is housed on the rescue device (1), or a connection to an external electrical power source. A mechanically or hydraulically driven movable piston rod (12) performs spreading and/or cutting. A display, which is provided on the housing (2). An electronic open- and closed-loop control device provides open- and/or closed-loop control of the electric motor (3) and/or of the display. The rescue device (1) has a communication interface (20) for video data (VD), the video data (VD) being user guidance data, and the display being a video-enabled display (8).

A piercing tip for a demolition shear, the piercing tip including a blade-side sidewall and a guide-side sidewall, a front wall, and a bottom wall. An intersection of a front outer wear surface of the front wall and a bottom wear surface of the bottom wall defines a front piercing edge. An intersection of a planar outer wear surface of the blade-side sidewall and the bottom wear surface of the bottom wall defines a shearing edge. A blade set may include the piercing tip and at least one shear blade. The piercing tip and at least one shear blade may be mounted to the blade-side of an upper jaw of the demolition shear.

A piercing tip for a demolition shear, the piercing tip including a blade-side sidewall and a guide-side sidewall, a front wall, and a bottom wall. An intersection of a front outer wear surface of the front wall and a bottom wear surface of the bottom wall defines a front piercing edge. An intersection of a planar outer wear surface of the blade-side sidewall and the bottom wear surface of the bottom wall defines a shearing edge. A blade set may include the piercing tip and at least one shear blade. The piercing tip and at least one shear blade may be mounted to the blade-side of an upper jaw of the demolition shear.

A cutting arm includes a base having a post receiving passageway extending through the base, a cutting assembly attached to the base, and a sliding plate attached to the base and movable with respect to the base between an engaging position and a releasing position. The sliding plate engages a post disposed in the post receiving passageway in the engaging position and releasably secures the cutting arm to the post.

A cutting arm includes a base having a post receiving passageway extending through the base, a cutting assembly attached to the base, and a sliding plate attached to the base and movable with respect to the base between an engaging position and a releasing position. The sliding plate engages a post disposed in the post receiving passageway in the engaging position and releasably secures the cutting arm to the post.