Matches 1 - 50 out of 286 1 2 3 4 5 6 >
Match Document Document Title
7631430 Guide bar for a chain saw  
A guide bar for a chain saw includes a first guide plate, a second guide plate and a spacer plate which is sandwiched between the first and second guide plates. Each of the first and second guide...
7571776 Antivibration unit of a portable handheld work apparatus  
An antivibration unit of a portable handheld work apparatus includes a leg spring ( 3 ) having at least one wire turn ( 5 ) and at least one first wire leg ( 6 ). The wire turn ( 5 ) extends about...
7516688 Saw chains having hardened cutting elements  
Hardened cutter elements commonly called cutters used in saw chains to act as cutter links. The hardened cutters have hard insets applied and connected to the cutting face of the cutter. The insets...
7513048 Chain saw attachment for a hand drill  
It refers to an accessory, which provides an electric or battery powered hand drill with the additional function of a saw, this accessory is basically formed by an attachment piece to a hand drill...
7484300 Extensible pole saw having separable sections  
An elongated pole pruner for cutting and trimming trees, bushes and the like having three separable sections, that when assembled, form an extended length pruner. The pole pruner includes a first...
7458162 Device for a portable tool  
The claimed invention relates to an engine powered portable tool comprising a working tool placed on a working tool carrier clamped to a tool casing ( 10 ). In order to increase the strength in the...
7424879 Portable handheld work apparatus  
A portable handheld work apparatus includes a drive motor configured as an internal combustion engine ( 1 ). The work apparatus includes an air filter case ( 2 ) arranged in the intake channel of...
7412959 Manually guided implement  
A manually guided implement having a housing that accommodates an internal combustion engine for driving a tool. At least an upper handle extends in a longitudinal direction of the implement on an...
7412961 Intake device  
To improve an intake device ( 100 ) for a handheld tool implemented having an air cleaner, particularly for a chainsaw, a cuffing-off grinder, or the like, which comprises an internal combustion...
7401660 Latch mechanism for pivoting handle assembly of a power tool  
A latch mechanism for a power tool, such as a hedge trimmer, having a housing accommodating a motor and a handle assembly adapted to pivot relative to the housing in a plurality of positions. The...
7331111 Chainsaw throttle and brake mechanisms  
A chainsaw is provided having a brake band disposed about a drum that rotates during advancement of the saw chain about the saw bar. An end of the brake band is biased to a position that draws the...
7331110 Device for a pole saw  
This invention relates to a device for a pole saw for pruning trees or bushes. The pole saw comprises an elongated stiff tube extending from a drive unit to a remote chain saw head ( 12 ) and...
7293491 Low vibration saw chain  
A saw chain is provided that has a plurality of cutter links coupled to an opposing tie strap, where the cutter link has a portion that protrudes past the tie strap to enable pivotal movement of...
7290641 Brake device for power tool  
A brake device for a power tool has a brake assembly, a bearing portion, a pinion and a gearbox. The brake assembly includes a brake base, a cover, a first throttle cable, a second throttle cable,...
7287330 Chain saw automatic tensioner  
A chain saw automatic tensioner preferably includes a base plate, a chain bar, a tensioning cylinder, a sliding block and a pusher block. The base plate includes a sliding slot that is sized to...
7269904 Portable handheld work apparatus  
A portable handheld work apparatus such as a motor-driven chain saw ( 1 ) includes a housing ( 2 ) wherein an internal combustion engine ( 10 ) and a carburetor ( 11 ) are mounted. A throttle lever...
7237585 Flip-down chainsaw cutter  
A metal frame having at least one wheel attached in a way that permits the frame to be moved from one location to another. Attached to the frame is a chain saw that can be used in more than one...
7225544 Ice axe for mountaineering with adjustable grip  
The ice axe for mountaineering includes a head, a shaft, and an anatomical grip having one free end and an end secured to the shaft. The grip defines a handling zone of the ice axe and includes an...
7204025 Hand-operated tool with handle  
The invention relates to a hand-operated tool with handle ( 1 ) with a handle section ( 2 ) on the user side and with a foot section ( 3 ) arranged on the bottom side of the handle section ( 2 )...
7185437 Chainsaw bar tensioning apparatus  
A chain saw bar tensioning apparatus is disclosed comprising a sliding member having a recess formed therein. The sliding member is adjacent to a first tensioning member that biases the sliding...
7152328 Electric pole saw  
The present invention is an electric pole saw featuring a novel saw powerhead mounting bracket assembly comprising interlocking bracket halves molded to conform to the opening and contours of the...
7152853 Manually operated implement  
A manually operated implement such as a chain saw, a parting-off grinder or similar device has an internal combustion engine to drive a tool and a handle arrangement to operate the implement. The...
7022924 Wireless electrical control system  
The present invention is directed to a wireless electrical control system for power tool and specifically to a wireless control device for a router. The electrical control system may include a...
6994068 Antivibration device  
An antivibration device is mounted between a motor unit ( 1 ) having an internal combustion engine ( 2 ) and a vibration-insulated unit ( 3 ) of a portable handheld work apparatus ( 4 ) such as a...
6918185 Chain saw handle extension  
A chain saw handle extension that includes an attachment mechanism at the far ends thereof for securement to a top and a bottom of a chain saw; and a clamping structure attached to the attachment...
6904687 Extended reach tree maintenance apparatus  
The present invention is an extended reach tree maintenance apparatus. The invention is comprised of a lightweight electric chain saw, at least two hollow and stackable extensions poles, a bracket,...
6878888 Safety device for activating electric tools  
A safety device includes a trigger for activating a first switch and a brake device for braking the output shaft of the electric tool. The trigger is controlled by a safety button that pivots a...
6842987 Trigger device for chain brake  
A brake triggering device with a pivotably mounted trigger arm ( 1 ) located in connection to a handheld working tool's, mainly a chain saw's ( 2 ), rear handle ( 3 ), with a throttle control ( 4 )...
6837138 Saw chain  
A saw chain for a motor-driven chain saw ( 1 ) is formed from center drive links ( 10 ) and lateral connecting links ( 11 ). A first radius ( 18 ) is the maximum distance of the axis ( 22 ) of the...
6814192 Device for braking a motor shaft  
The invention relates to a device for braking a motor shaft, such as a motor shaft of a chain saw, with a brake band that at least partially surrounds an area of the shaft and with at least one...
6799373 Portable work apparatus  
A portable work apparatus, especially a motor-driven chain saw ( 1 ), has a drive unit which is provided with a handle housing ( 3 ). The handle housing ( 3 ) includes an extension ( 9 ) which...
6787721 Safety switch of screwdriver  
A safety switch of a screwdriver has a driver body. The safety switch of a screw comprises a push unit; a trigger pivotally installed on the driver body; a receiving space being formed within the...
6769187 Chain saw braking system  
A chain saw chain braking system, positioned in a continuous channel guide through which chain linking elements slide freely during use, unless the slidability is impeded by its operation.
6742265 Hand guard block  
The invention entails a motor saw which includes a brake system for braking the motor, and which further includes a brake-system actuation arrangement comprising a lever and a positioning element...
6715212 Portable handheld work apparatus  
A portable handheld work apparatus such as a motor-driven chain saw includes a housing ( 6 ) of a drive unit ( 2 ). The following are mounted in the housing ( 6 ): an internal combustion engine ( 3...
6651347 Portable handheld work apparatus  
The invention relates to a portable handheld work apparatus including an overhead branch cutter. The work apparatus has a drive motor ( 4 ) mounted at one end ( 2 ) of a carrier tube ( 3 ). A work...
6643939 Chain saw with vibration-isolating devices  
A chain saw with vibration-isolating devices, capable of providing a desirable vibration-isolating effect over a wide frequency range and reducing accidental deviation from a desired cutting line...
6637117 Chain saw  
The present invention relates to a chain saw having a chain bar portion extending forwardly from a main body. The chain saw comprises an attaching portion to which a suspension member is to be...
6619409 Vibration-isolating member and vibration-isolating device  
A vibration-isolating member is formed of an elastic material, and has a mounting hole at the center thereof, a large diameter section at an end of the mounting hole, a groove at the periphery of...
6575285 Safety switch for power tools  
A clutch safety switch of a power chainsaw includes a safety member slidably connected to the casing and a trigger which is not able to be squeezed when the safety member is not slid away. A gear...
6565294 Plunge cutting device for non-circular shapes  
A plunge cutting device for use with a portable drill, drill press, or other rotary drive source which is capable of cutting irregularly shaped openings or workpieces in a single operation. A drive...
6564459 Chain saw  
In a chain saw having a sprocket ( 11 ), which is supported in rotary fashion in a housing ( 10 ) and is for a saw chain ( 12 ) guided on a guide ( 13 ), and having a chain tension device ( 14 )...
6546905 Valve drive mechanism for an internal combustion engine  
A valve drive mechanism is provided for an internal combustion engine, especially a four-stroke engine in a power chain saw. The implement housing is spanned by a front handle, the tubular grip of...
6502315 Work apparatus having a centrifugal clutch  
The invention relates to a portable handheld work apparatus such as a motor-driven chain saw, a cutoff machine, a brushcutter or the like. The work apparatus includes an internal combustion engine...
6493948 Motor-driven chain saw with back kick brake and coasting brake  
In order to design a motor chain saw with a chain brake device releasable as a back kick brake and as a coasting brake comprising a tension lever ( 2 ), movable with respect to the housing of the...
6446421 Manually guided implement, having vibration-dampened handle  
A hedge trimmer has a tool that is driven by a drive unit. At least one vibration-dampened handle is secured to the drive unit. The handle comprises a one-piece component having a grip portion and...
RE37832 Electromotive chain saw  
The chain of an electromotive chain saw is quickly stopped by the combined use of an electric brake and a mechanical brake when a trigger member is turned off. The rear end of a brake band disposed...
6415516 Power cutting device  
A power cutting device for cutting material in tight places. The power cutting device includes a power cutting device comprising a housing. The housing includes a first end and a second end. A...
6412180 Anti-vibration element having separation securement  
An anti-vibration element is provided for disposition between a motor unit and a handle unit of a manually guided implement. The anti-vibration element includes a sleeve-shaped, elastic main body...
6408730 Separating device with cutting chain for processing sandwich panels  
A cutting device for tooling sandwich plates has as its cutting tool a cutting chain ( 5 ) with cutting elements in the form of chain links ( 27, 28, 29 ) and a chain guide as the guide mechanism,...
Matches 1 - 50 out of 286 1 2 3 4 5 6 >