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| Number | Title | Issue Date |
| 7403131 | Power tool movement monitor and operating system A power tool movement monitor system including a first accelerometer operatively configured to sense movement along a first axis of a power tool and a first high pass filter operatively connected to the output of the first accelerometer. The first high pass filter h... | 07/22/2008 |
| 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 latch mechanism includes a lever carrying a first and second retaining... | 07/22/2008 |
| 7357056 | Cutting tool safety system A woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into... | 04/15/2008 |
| 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 brake band tight about the drum to prevent advancement of the saw cha... | 02/19/2008 |
| 7316299 | Brake device for chain saw A brake device for a chain saw is provided, wherein a driving shaft, which passes through a brake block, a torsion spring, a driving block and a chain wheel, is assembled with a driven gear, and two ends of the torsion spring are respectively fixed to the brake bloc... | 01/08/2008 |
| 7293632 | Brake-equipped retracting mechanism for retractable member In a brake-equipped retracting mechanism, rotational force of a motor is used to open a liquid crystal display device from a retracted position to an open position, a power spring is wound up in conjunction with this opening operation, and elastic restoring force th... | 11/13/2007 |
| 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, a brake-activating block, a brake-guiding pillar, a brake band and a ... | 11/06/2007 |
| 7287331 | Power working machine A power working machine has a machine body, a drive source mounted on the machine body for driving a work implement connected to the machine body, and an operating handle mounted on the machine body for undergoing rotation relative to the machine body. A throttle le... | 10/30/2007 |
| 7284333 | Chainsaw kickback protection device A chainsaw kickback protection device includes a chain guard and a mounting bracket assembly. The chain guard includes an elongated guard body and a chain-engaging member. The elongated guard body has a channel extending along at least a portion of its length. The c... | 10/23/2007 |
| 7278395 | Manually operated implement driven by an internal combustion engine A manually guided implement driven by an internal combustion engine having a carburetor that is actuated by a throttle lever arrangement, which includes a throttle lever that is mounted in the implement so as to be pivotable about a pivot axis, and also includes a t... | 10/09/2007 |
| 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 (6) is provided which is pivotally journa... | 09/18/2007 |
| 7225712 | Motion detecting system for use in a safety system for power equipment A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action... | 06/05/2007 |
| 7222874 | Rear wheel synchronous brake system for pushcart A rear wheel synchronous brake system used in a pushcart such as a baby jogging stroller is disclosed to include two rear brakes respectively coupled to the two rear wheels of the baby jogging stroller, a hand control unit mounted on the handle of the baby jogging s... | 05/29/2007 |
| 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) and with a detachable one-piece upper handle shell ... | 04/17/2007 |
| 7200941 | 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 brake band tight about the drum to prevent advancement of the saw cha... | 04/10/2007 |
| 7201144 | Operating apparatus of engine in portable working machine An operating apparatus of an engine in a portable working machine improves an operability of a throttle lever while preventing a Run-on phenomenon or the like. The operating apparatus is provided with a first operating device for operating a throttle valve of the en... | 04/10/2007 |
| 7191751 | Handle for a pull-rope starter of a motor-driven chain saw The invention entails a handle for a pull-rope starter of a drive motor, especially of a chain saw. The invention includes at least one handle section, at least one fastening section for a starter rope, and a damping for smoothing out force peaks produced in the han... | 03/20/2007 |
| 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 member in a direction such that when the apparatus is incorporated into ... | 03/06/2007 |
| 7159322 | Power working machine A power working machine has a machine body, trimming blades attached to the machine body and drivable by a drive source, an operating handle rotatably mounted on the machine body, a throttle lever disposed on the operating handle, and a throttle lock lever disposed ... | 01/09/2007 |
| 7140114 | Guard for chainsaw The present disclosure concerns embodiments of an improved chainsaw guard. The saw guard includes a pivotable guard arm that may include downwardly extending saw chain guarding walls. In particular embodiments, the guard arm is pivotally connected to a mounting brac... | 11/28/2006 |
| 7127971 | Hand tool safety device A combination handle and safety device configured to be attached to a hand tool to enable the hand tool to be safely stored upon a timber includes a handle, configured to be grasped by a user of the hand tool. Each of a pair of hanger prongs extends outwardly from a... | 10/31/2006 |
| 7124840 | Engine breaker An engine breaker includes a vertically extending cylindrical main body (1), a work member (2) supported by a lower portion of the main body for up and down movement, an engine (5) mounted to an upper portion of the main body and having an outpu... | 10/24/2006 |
| 7119520 | Energy storage flywheel test control system A system and method for removing energy from the rotating group in an energy storage flywheel system during flywheel system testing includes one or more sensors is operable to sense operational parameters of the energy storage flywheel and to supply a sensor signals... | 10/10/2006 |
| 7089670 | Portable motor chain saw A portable motor chain saw comprises a machine body (1) which a driving unit, a rear handle (2), a front handle which extends over the machine body, a guide bar (6), and a dog device (15) provided such that it can be pressed against the o... | 08/15/2006 |
| 7055250 | Machine tool for cutting plate and sandwich panels A machine for cutting plate-shaped workpieces, incorporates a tool guide (7), an operating handle (13), and a cutting tool (6) which revolves along the tool guide (7). By moving the operating handle (13), the tool guide (7) ... | 06/06/2006 |
| 7032749 | Tool case having scabbard with adjustable length A chain saw case has an adjustable scabbard that telescopes to allow for different lengths of chain bar. The scabbard also has an opening along one side to allow visibility of the side of the chain saw bar and any markings, including branding, on the chain saw bar. ... | 04/25/2006 |
| 7024975 | Brake mechanism for power equipment Woodworking machines are disclosed having cutting tools adapted to cut workpieces. The machines include a detection system adapted to detect one or more dangerous conditions between a person and the cutting tool. The machines also include a brake mechanism having on... | 04/11/2006 |
| 7000593 | Portable handheld work apparatus A portable handheld work apparatus such as a blower or brushcutter or the like has an actuating device for controlling the drive motor of the work apparatus. A throttle lever (2) is provided which acts on the actuating device. A fixing device (35) is p... | 02/21/2006 |
| 6944958 | Chain saw chain tensioning and braking system A chain saw which includes chain tensioning and braking systems. Tensioning and braking are caused by the presence and control of longitudinal and lateral slits in an elongated support which provides a continuous chain channel guide in its outer circumference. ... | 09/20/2005 |
| 6939022 | Illumination means for a chainsaw An illumination means for a chainsaw is a light source generated for providing a focused beam at the bar and chain of a chainsaw. Illumination means is positioned at the front of the housing of a chainsaw. Illumination means may be integrally incorporated therein or... | 09/06/2005 |
| 6920814 | Cutting tool safety system A woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into... | 07/26/2005 |
| 6910361 | Coupling device A coupling device for releaseably securing together two objects. The coupling device comprises a first housing securable to a first object, a second housing securable to a second object, and an actuator secured to the first housing. The second housing has a hollow b... | 06/28/2005 |
| 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, several fasteners, and a wireless ON/OFF switch. The bracket is atta... | 06/14/2005 |
| 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 pivotal member that is engaged with a rotatable member when an intermedi... | 04/12/2005 |
| 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) and a handle opening (5) located below th... | 01/18/2005 |
| 6775913 | Battery operated circular saw A battery (4) driven circular saw includes a housing (1a) with a motor (3) for driving the circular saw blade (2). The circular saw blade (2) is fixed to a drive shaft (7) that runs transverse to the plane (E) of the ... | 08/17/2004 |
| 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 which lever is held by the positioning element in a defined position a... | 06/01/2004 |
| 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 attached, and the attaching portion is arranged in the vicinit... | 10/28/2003 |
| 6588110 | Guide bar having rotating guide disc The invention relates to a guide bar for a motor-driven chain saw comprising an elongated planar base body which has a guide groove (8) in its outer periphery for guiding a saw chain (6). The saw chain (6) includes cutting links (14), lateral connecting l... | 07/08/2003 |
| 6536119 | Hedge cutting system A hedge cutting system for cutting branches and other foliage with a chainsaw. The hedge cutting system includes at least one elongated cutting bar for guiding movement of branches of a hedge toward a cutting member while cutting the hedge. The cutting ba... | 03/25/2003 |
