Matches 1 - 50 out of 228 1 2 3 4 5 >


Match Document Document Title
8181716 Breaking machine shock absorbing system  
A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said...
8176997 Hand-held power tool with a chuck for receiving a percussion working tool  
A hand-held power tool includes a work spindle (4)in which a chuck (3) for receiving an axially displaceable, within limits, percussion working tool (2), is mounted on. The work spindle (4) having...
8161611 Tool for installation of tubing in flooring  
A tool for installing tubing in channels of floor panels comprises a handle attached to an upper portion of a front frame and a pair of wheels attached to a bottom portion of the front frame, a...
8151901 Impact device and method for generating stress pulse therein  
A pressure fluid operated impact device comprising a frame (2) whereto a tool (3) is mountable movably in its longitudinal direction, and control means (7) for controlling pressure fluid feed to...
8141255 Multi-impact hand tool  
A multi-impact hand tool comprises a sleeve, a tool head, a movable rod, a spring and an impact block. With only one impact operation, the multi-impact hand tool can provide a multi-impact effect,...
8141655 Hammer having a two part body  
A tool assembly such as a hammer assembly, includes a housing defining a chamber and a reciprocating piston arranged in the chamber for cyclical movement in a work stroke and a return stroke. The...
8127862 Power tool  
A power tool capable of performing vibration damping action in working operation, without an increase in size. The working tool includes a motor, a housing in which an internal mechanism driven by...
8096368 Fence post installation and anchoring system  
A hand-driven receiving bracket for galvanized or steel pipe used with yard fences, gateposts, pet pens, and the like comprises a round galvanized pipe and three (3) downwardly directed triangular...
8096369 Striking mechanism for a handheld electric power tool  
The invention relates to a striking mechanism of a handheld electric power tool, in particular a percussion drill and/or percussion hammer, having a hammer cylinder, a piston mounted with a guide...
8083117 Nailer device  
A nailer device is carried within a housing having a nozzle portion wherein the nozzle portion is connected with the housing via a head portion of the housing. The nozzle portion includes a sleeve,...
8080015 Impacting device and method  
An impacting device for inserting, positioning and/or removing an implant and/or performing other impacting applications. The impacting device may have a head having at least one recess. The recess...
8061438 Hand-held power tool with a vibration-damped handle  
The invention relates to a hand tool machine (2), in particular a drilling and/or percussion hammer, with a housing (4) and a vibration-damped handle (10) elastically supported relative to the...
8028762 Shock absorber for a reciprocating tool assembly  
A tool assembly (10), for example a hydraulic or pneumatic hammer assembly, comprises a housing (11) defining a chamber (16), a reciprocating work tool (20) arranged in the chamber for cyclical...
8015682 Method and device for forcible entry  
A breaching device (100) includes an elongated main body (4) that forms an outer surface (2) and has a front end (24). The elongated main body (4) divides along a length and forms substantially...
8006784 Backhead and drill assembly with backhead  
A portion of a drill assembly operated by a supply of compressed fluid comprises a backhead, a cylinder portion, a hollow elongate wear sleeve and a piston. The backhead has a proximal end...
7992652 Fluid distributor cylinder for percussive drills  
A fluid distributor cylinder is for a percussive drill assembly that includes a casing having an inner circumferential surface defining a central bore, a central axis extending through the bore, a...
7987930 Drill bit assembly for fluid-operated percussion drill tools  
The invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit (1) having a head portion (3) formed with an axially extending stub shank (32)....
7980322 Impact adapter for a rock drill  
An impact adaptor to convert a rock drill to an impact driver is described. The impact adapter has a boom coupling for securing the adapter in co-operating alignment with the shank of a drifter....
7980240 Breaking machine  
A breaking apparatus (1) including a movable mass (3) for impacting on a striker pin (4), a housing (2) and a striker pin (4) configured to partially protrude through the housing (2), the apparatus...
7971654 Rotary impact tool  
A rotary impact tool includes a drive shaft rotationally driven by a rotational drive power source, a hammer arranged around the drive shaft, a ball engaging with a cam groove formed on the outer...
7971655 Hand-held power tool with a vibration-damped rounded handle  
The invention relates to a hand machine tool (2), particularly a percussion drill and/or percussion hammer, comprising a housing (4) having two parallel appendages (20, 22), a hollow, U-shaped,...
7950470 Mechanical tee post driver  
A mechanical fence post driver for attachment to a lift arm of a standard front-loader which includes a mounting plate, guide tube, and roller latch assembly. The guide tube receives a tee or other...
7934567 Driving apparatus for planting a shaft in a granular base  
A driving apparatus is disclosed for planting a vertically oriented shaft into a granular base. The driving apparatus includes an anvil integrally formed at an intermediate location on the shaft. A...
7934566 Cordless nailer drive mechanism sensor  
A device for impacting a fastener in one embodiment includes a lever arm pivotable between a first position whereat a flywheel is spaced apart from a drive mechanism and a second position whereat...
7926690 Combustion powered driver  
A device for driving various objects using combustible fuel. Embodiments are contemplated in which the driver could be a post-driver, a power shovel, a jack-hammer or other devices. Typically, the...
7921934 Power tool  
A power tool capable of performing vibration damping action in working operation, without an increase in size. The working tool includes a motor, a housing in which an internal mechanism driven by...
7921531 Pneumatic battering ram and method therefor  
A pneumatic battering ram is disclosed. The battering ram has a housing, a pressurized air tank, a ramming head, and a pivotable ramming edge. Air released from the air tank into the housing forces...
7905377 Flywheel driven nailer with safety mechanism  
A device for impacting a fastener in one embodiment includes a drive mechanism, a flywheel pivotable between a first flywheel position whereat the flywheel is not in contact with the drive...
7900420 Hammer drill attachment and method  
A pressure joining method includes a hammer drill attachment device mountable within the chuck of a hand-held hammer drill. Using the hammer drill attachment, an operator installs flooring sheets...
7896100 Valve device for a percussion device and a percussion device for a rock drilling machine  
A valve device (V, 4′) for controlling the movement in a machine housing (2) of a reciprocating percussion piston (3) of a percussion device (1) for a rock drilling machine with a first chamber (...
7878263 Pressure-fluid-operated percussion device  
A pressure-fluid-operated percussion device includes a frame allowing a tool to be arranged movably in its longitudinal direction. Pressure liquid is fed to the percussion device and returned to a...
7870911 Pile driver  
A pile driver includes a leader rotation/holding mechanism that can firmly hold a leader in a rotatable state and also reliably rotate the leader using a general-purpose, inexpensive hydraulic...
7870910 Vibration generator for a vibration pile driver  
A vibration generator for a vibration pile driver has imbalance masses that can rotate and which are disposed on shafts. The rotational position of the imbalance masses can be adjusted relative to...
7854274 Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing  
A multi-mode drill can include a transmission to transfer torque from an output member of a motor to an output spindle. A transmission housing encloses the transmission in an interior cavity formed...
7832497 Shock dampening post driver  
A post driver having rotational handles and a dampening device adapted to isolate the hands and arms of the user from shock.
7802710 Nail pusher that can push nails successively  
A nail pusher includes a handle, a guide tube mounted in the handle and having a nail guide slot, a nail magazine mounted on the handle, a plurality of nails mounted in the nail magazine, a push...
7798384 Probe bar hole driver and remover  
A slide hammer for driving a probe into the ground includes a probe lifting and removal arrangement in which a slide hammer tube is pivoted away from the probe to function as a lever operating with...
7775412 Nail and anchor driver  
A nail is held within a cylindrical nail receiver by a magnetized tip of a cylindrical driver rod. As the driver sleeve is moved toward a surface, the driver rod drives the nail into the surface...
7775294 Percussion toggle device of a percussion driller  
This invention discloses a percussion toggle device of a percussion driller. It includes bottom ratchet wheel that joggles the top ratchet wheel fixed in the output main shaft of the percussion...
7748472 Hammer drill  
A hammer drill has an elastic member without using a coil spring or the like on an intermediate spindle to compact a housing and decrease cost. The elastic member that elastically engages a clutch...
7740085 Vibratory apparatus for a rotary-vibratory drill  
A vibratory apparatus comprises an eccentric mass disposed within a housing. A shaft and bushing are received by the eccentric mass and couple the eccentric mass to a crankshaft. An internal...
7726413 Tool holder for a powered hammer  
A tool holder for a powered hammer includes a tool holder housing. An actuator is coupled to the tool holder housing and is moveable among a range of operating positions that include a first...
7717191 Multi-mode hammer drill with shift lock  
A shift bracket can be mounted on a shift rod for movement between a first, high-speed drilling mode and a second, low-speed drilling mode. Cooperating shift lock surfaces can be associated with...
7695217 Arrangement for and method of installing building elements  
An arrangement for installing building elements, such as piles and tunnel sections, into a ground formation, where a building element is provided. Two or more impact drivers for delivering blows to...
7694749 Jackhammer with a lift assist  
The present invention relates to an integrated percussion power tool which contains a percussion mechanism and a lift assist mechanism to reduce the physical demands for its operation by...
7686098 Chain driven reciprocating hammer with work piece centering and clamping  
In accordance with the present invention, a chain driven reciprocating hammer is disclosed. The chain driven reciprocating hammer includes a chain system for lifting a ram to a drop point. The...
7661485 Hammer drill  
A hammer drill has an electric drive motor having a motor shaft and a tool shaft driven in rotation by the electric drive motor. A hammer action is provided. The tool shaft is driven by a first...
7647985 Hammer drill  
It is an object of the invention to provide an improvement in ease of operation of a driving mode switching mechanism in a hammer drill. According to the invention, a representative hammer drill...
7637327 Percussive tool, in particular for surgical use  
The invention relates to a percussive tool having an oscillatory drive (3), the force of which is transmitted to a tool bit holder (25) by way of a drive member (17). Extending through the...
7624815 Powered hammer with vibration dampener  
A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, and a piston slideably mounted within the housing. A drive...
Matches 1 - 50 out of 228 1 2 3 4 5 >