One Movable Blade Patents (Class 30/249)
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Patent number: 11968935Abstract: A garden shears has an anvil portion, a driving arm, a blade portion and a plurality of pivot shafts. The anvil portion sandwiched an anvil, and the anvil portion and the driving arm are pivoted together by a pivot shaft. A gear and the blade portion are disposed between the driving arm. The blade portion has a straight groove and a rack portion. A pivot shaft is used to pivot the gear and the driving together is engaged and another pivot shaft passes through the straight groove and the driving arm with the pivot shaft capable of sliding in the straight groove and the gear being engaged with the rack portion to achieve the effect of a stable speed.Type: GrantFiled: September 26, 2022Date of Patent: April 30, 2024Assignee: HO CHENG GARDEN TOOLS CO., LTD.Inventor: Yao-Chung Huang
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Patent number: 11596140Abstract: A vine removal device may include a shaft connected to a hook with a pocket. An actuation mechanism, such as a line connected to a user's belt, can actuate a movable jaw having a jaw projection configured to at least partly fit within the pocket. The hook has blade that supports a vine slide surface that facilitates collection of vines in the pocket where they can be gripped by the projection of the movable jaw. The blade may employ a surface skimmer to limit how deep the blade can penetrate the soil.Type: GrantFiled: October 20, 2019Date of Patent: March 7, 2023Assignee: X-Tirp, Inc.Inventor: Philip W. Doberenz
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Patent number: 11235399Abstract: Hand tools which have an ergonomic using a palm handle and finger handle designs which achieve mechanical efficiency and ease of use. The ergonomic handle is compatible with the muscle movements of an operator using a hand tool reducing muscle strain and pain. Optionally, the palm and finger handles can have ergonomically designed cushions. In an embodiment, the finger handle can have a finger set which has a forward finger flange, a tail finger flange and a pinky grip. The ergonomic handle can also use a relief washer system to achieve a smooth low frictional resistance cutting stroke.Type: GrantFiled: August 23, 2016Date of Patent: February 1, 2022Assignee: Stanley Black & Decker, Inc.Inventors: Tolga Caglar, Thomas A. Pelletier, Kevin Costello
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Patent number: 10368495Abstract: A tree pruner has a connecting pole. The connecting pole is connected with a main body. The main body includes a blade seat and a blade pivotally connected to the blade seat. The main body is pivotally connected with a rotating wheel. The rotating wheel is connected with a pull member. The rotating wheel is rotatable relative to the main body by pulling the pull member. An end surface of the rotating wheel has a traction portion located away from a pivot axis of the rotating wheel. The blade has a drive arm extending outwardly. One end of a pull rod is pivotally connected to the traction portion. Another end of the pull rod is pivotally connected to the drive arm. By pulling the pull member, the rotating wheel is driven to rotate, and the pull rod is pulled to drive the blade to swing for performing cutting.Type: GrantFiled: February 22, 2018Date of Patent: August 6, 2019Assignee: Green Guard Industry Ltd.Inventor: Kuang Pin Wang
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Patent number: 10168263Abstract: A handheld constant-stiffness ring shear apparatus has a base and an annular rigid frame arranged on the base in a sleeved mode. An upper cover is buckled to the top of the rigid frame, a pressure transmission plate is fixed to the upper portion of the upper cover, and a rotary shaft is perpendicularly arranged in the center of the base. The rotary shaft penetrates through the pressure transmission plate and is fixed to the pressure transmission plate. A spanner is fixed to the top end of the rotary shaft, and a digital display instrument is embedded in the spanner. The handheld constant-stiffness ring shear apparatus is convenient to carry, easy to operate, economical and practical, and can be used for measuring the volume chance of a soil sample at a field location under the constant-stiffness condition in the shear force resisting and shearing process.Type: GrantFiled: March 30, 2016Date of Patent: January 1, 2019Assignee: SHENZHEN UNIVERSITYInventor: Dong Su
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Patent number: 10091946Abstract: Pruning shears include a cutting head with a spring-biased blade pivotally connected to a jaw and arranged to sever a workpiece received in a bight formed by the jaw. A drive mechanism is connected to the cutting head and an elongate housing is connected to the drive mechanism. The drive mechanism includes a rotation preventer for preventing rotation of a second pulley in relation to the drive mechanism when a drawing torque is applied to the second pulley. The drawing torque is greater than a threshold torque, resulting in a second pulley being stationary in relation to the drive mechanism and the first pulley rotating in relation to the drive mechanism.Type: GrantFiled: September 26, 2016Date of Patent: October 9, 2018Assignee: Fiskars Finland Oy AbInventors: Olavi Lindén, Jan Lindén
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Patent number: 9820444Abstract: A lopper a lopping assembly mounted to an upper end of a pole, said lopping assembly includes a movable knife and a counter knife. The movable knife is connected via a first transmission and connection assembly to an operating assembly disposed at a lower end of the pole, which is configured to move the movable knife and/or the counter knife in a direction to one another. The operating assembly includes first and second actuating elements. The first actuating element is coupled to the first transmission and connection assembly and the second actuating element is coupled via a second transmission and connection assembly and releasable latching assembly to the first actuating element. Movement of the second actuating element away from the first actuation element causes, via the second transmission and connection assembly, a movement of the first actuating element in said first direction.Type: GrantFiled: July 30, 2015Date of Patent: November 21, 2017Assignee: MTD PRODUCTS INCInventor: Peter Held
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Patent number: 8813370Abstract: A trigger-operated portable electric tool for performing a main function, characterized in that it has a double trigger with, on the one hand, a main trigger for operating it, which operates at least one moving active part of the tool and, on the other hand, an auxiliary trigger or secondary trigger connected to the main trigger by means of an articulation and configured to make an angle with the said main trigger, the pivoting of the auxiliary trigger about the articulation enabling actuation of a means of operating a system for performing at least one additional function of the tool.Type: GrantFiled: August 19, 2009Date of Patent: August 26, 2014Assignee: Pellenc (Societe Anonyme)Inventor: Roger Pellenc
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Publication number: 20140165410Abstract: Illustrative embodiments of sheet cutting shears are disclosed. A sheet cutting shears may include a tool body and a cutting head. The tool body may include a drive housing and a handle coupled to the drive housing. The handle may be inclined toward the cutting head so that at least a portion of the drive housing located between the handle and the cutting head is within a footprint of the handle when viewed from above. A handle axis and a housing axis may form an acute angle located at least in part between a front side of the handle and a top side of the drive housing. The sheet cutting sheers may further include a trigger configured to move between an off position and an on position, the trigger being spaced apart from the drive housing.Type: ApplicationFiled: December 13, 2012Publication date: June 19, 2014Applicant: Ingersoll-Rand CompanyInventors: Joshua Odell Johnson, Christopher Anthony Kokinelis
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Patent number: 8683704Abstract: A power tool includes a pipe holder, a knife pivotally coupled to the pipe holder, and a drive mechanism coupled to at least one of the pipe holder and the knife. The drive mechanism is operable to move the at least one of the pipe holder and the knife relative to the other of the pipe holder and the knife. The power tool also includes a motor coupled to the drive mechanism and a power supply electrically coupled to the motor to selectively power the motor for operating the drive mechanism.Type: GrantFiled: July 3, 2008Date of Patent: April 1, 2014Assignee: Milwaukee Electric Tool CorporationInventors: John S. Scott, Michael Naughton
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Patent number: 8656597Abstract: Portable electric tool including a body configured to act as a handgrip and at one of the ends of which there is mounted a moving active member, the movements of which are brought about by an actuator, characterized in that the moving part is equipped with an oriented magnetization magnet that can be moved past a magneto-resistive sensor fixed to a fixed element of the body. The trigger is equipped with an oriented magnetization magnet that can be moved past a magneto-resistive sensor fixed to a fixed element of the body. The portable electric tool further includes an electronic board for analyzing the information emitted by each magneto-resistive sensor according to the inclination of the magnetic field lines presented to it, in order to control the operation of the actuator so as to position the moving part accurately according to the position of the control device.Type: GrantFiled: August 19, 2009Date of Patent: February 25, 2014Assignee: Pellenc (Societe Anonyme)Inventor: Roger Pellenc
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Patent number: 8590165Abstract: An extended reach garden shears includes a shear rod, a driven arm, an operating arm and a connecting piece. The shear rod has a fixed cutter base on one end. The fixed cutter base is formed with a hooked cutting edge. The fixed cutter blade is provided with a primary shaft hole and a secondary shaft hole. A driven arm is provided with a rotation hole and is pivotally connected to the primary shaft hole of the fixed cutter base. The driven arm is formed with a cutting blade to match the hooked cutting edge. The bottom end of the cutting blade extends to form a connecting portion. The distal end of the connecting portion is bent to form a driven rack. The operating arm is provided with a pivotal hole. The pivotal hole is pivotally connected to the secondary shaft hole of the fixed cutter base. The operating arm is formed with an operating rack adjacent to the pivotal hole. The operating rack is drivingly engaged with the driven rack.Type: GrantFiled: November 30, 2010Date of Patent: November 26, 2013Assignee: Ho Cheng Garden Tools Co., Ltd.Inventor: Yao-Chung Huang
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Publication number: 20130227843Abstract: A cutting tool includes a fixed blade having a cutting surface and a movable blade having a cutting surface. The movable blade is rotatable between a receiving position in which the cutting surfaces are spaced and a cutting position in which an object disposed between the fixed and movable blades is cut by the cutting surfaces. A return spring member is connected to the movable blade. The spring member stores energy when the movable blade is rotated from the receiving position to the cutting position. The spring member returns the movable blade to the receiving position when the stored energy is released.Type: ApplicationFiled: March 5, 2012Publication date: September 5, 2013Applicant: HUBBELL INCORPORATEDInventor: Peter WASON
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Patent number: 8522444Abstract: A cable control set for extended reach garden shears, the extended reach garden shears having a cutting section comprising at two blades pivoted together, the cutting section attached to a first location of an extension rod, the cutting section capable of being driven by the cable. Two guiding rollers are pivoted onto a second location of the extension rod, and the cable is placed between the two guiding rollers, a rotatable member is pivoted onto an opposite side of the extension rod by a corresponding securing member; and a rotating arm is pivoted onto a top surface of the rotatable member via a corresponding securing member, and the two auxiliary rollers are pivoted onto the one end of the rotating arm, the cable is placed between the two auxiliary rollers.Type: GrantFiled: January 4, 2011Date of Patent: September 3, 2013Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Patent number: 8453546Abstract: A cast-cutter (10) for removing a cast from a patient comprises a body (12) and a cutting assembly (18) secured thereto, wherein the cutting assembly (18) includes first and second relatively moveable cutting members (40, 44). Each cutting member (40, 44) defines a cutting edge (46, 48) which when in use cooperate to cut by a shearing action. Each cutting member (40, 44) also defines an inner face (60) and are adapted to maintain the inner faces (60) in non-engaging relationship to provide clearance therebetween in order to prevent material binding between the member (40, 44) during a cutting operation.Type: GrantFiled: March 23, 2005Date of Patent: June 4, 2013Assignee: Ross Wark Medical LimitedInventors: David J. Ross, George Miller
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Patent number: 8434234Abstract: Electric shears include a housing, a motor within the housing, a transmission including a reduction gearbox and a bevel gear pair, a fixed blade, a movable blade rotatably connected to the fixed blade and coupled with the motor via the transmission. The movable blade swings back and forth about its connection with the fixed blade. The fixed blade is supported on the reduction gearbox and fixed to the housing together with the reduction gearbox. Electric shears are thus provided with a small shape, a simple and compact interior structure, and better portability.Type: GrantFiled: September 13, 2010Date of Patent: May 7, 2013Assignee: Chervon LimitedInventors: Wu Chen, Toshinari Yamaoka, Fangjie Nie
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Publication number: 20130042486Abstract: A garden shears includes a connecting member having a pivoting section and an engaging section, the pivoting section having a shaft aperture and a securing aperture, the securing aperture accepting a limiting member, and the engaging section having a chamber connected to the securing aperture; a blade assembled with the shaft aperture and pivoted with a passive gear; a rotatable handle having an axis rod inserted into the chamber, the axis rod pivoted onto the limiting member, a first toothed element disposed between the axis rod and the rotatable handle, and the first toothed element engaging with the passive gear; and an anvil handle having a shaft locked onto the shaft aperture; the anvil further having a second toothed element, the second toothed element engaging with the passive gear. When the second toothed element drives the passive gear, the passive gear drives the first toothed element to rotate the rotatable handle.Type: ApplicationFiled: August 18, 2011Publication date: February 21, 2013Applicant: Duracraft Products Co., Ltd.Inventor: Mike C. Lee
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Publication number: 20120246942Abstract: A power pruner includes a housing, a motor arranged in the housing, a transmission device connected to the motor, a pair of blades and a trigger which is arranged on the housing and used to control the motor. The pair of blades include a fixed blade and a movable blade which is driven by the motor to swing back and forth. The power pruner additionally includes a stroke switch which is arranged on the housing and has at least two statuses wherein the movable blade has a first stroke when the stroke switch is in a first status and a second stroke different from the first stroke when the stroke switch is in a second status.Type: ApplicationFiled: March 22, 2012Publication date: October 4, 2012Applicant: CHERVON (HK) LIMITEDInventors: Fangjie Nie, Qi Zhang, Pingbo Shi
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Patent number: 8250765Abstract: A pruning hook includes an extension shank, a fixed blade mounted on a first end of the extension shank, a movable blade pivotally connected with the fixed blade, a driving cord connected with the movable blade to drive the movable blade relative to the fixed blade, a control member movably mounted on the extension shank and connected with the driving cord to drive the driving cord, and a positioning device mounted on the control member and detachably locked onto the extension shank to releasably lock the control member onto the extension shank. Thus, by provision of the positioning device, the movable blade and the fixed blade are disposed at a closed state when not in use to prevent the movable blade and the fixed blade from hurting a person.Type: GrantFiled: July 21, 2009Date of Patent: August 28, 2012Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Patent number: 8220163Abstract: The invention relates to pruning shears comprising a cutting head (12) with a spring-loaded blade (18) acting in cooperation with a counter blade (20), a drive mechanism (16) connected to the cutting head (12), and an elongated handle (14) connected to the drive mechanism (16). The drive mechanism comprises a first and a second counterpart (32, 34), optionally rotating with respect to one another about an axis (36), allowing the cutting head (12) to be adjusted with respect to the elongated handle (14), and an upper line arrangement allowing the blade (18) to be turned about a hinge point (19) and the cutting head to be adjusted in such a manner that the blade (18) does not rotate about the hinge point (19).Type: GrantFiled: May 20, 2008Date of Patent: July 17, 2012Assignee: Fiskars Brands Finlay Oy ABInventors: Olavi Lindén, Markus Paloheimo
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Publication number: 20120167397Abstract: Extended reach garden shears include an extension rod, a handgrip, a cutting head and a pull handle. The extension rod is formed with an accommodating space, a front opening and a rear opening. The extension rod is provided with a pin hole and a rope-guiding hole. The handgrip is slidingly disposed on the extension rod. The cutting head is inserted into the front opening. The pull handle is inserted into the rear opening. A fixed base is fixed in the accommodating space. A movable base is slidingly disposed in the accommodating space and connected to the cutting head. A rope has a combining end, a connecting end and a wrapping section. The wrapping section wraps around the fixed base and the movable base. The combining end is connected to the pull handle. The connecting end is connected to the pull handle. The rope, the fixed base and the movable base enable the garden shears to achieve an efficient trimming action.Type: ApplicationFiled: January 4, 2011Publication date: July 5, 2012Applicant: HO CHENG GARDEN TOOLS CO., LTD.Inventor: Yao-Chung Huang
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Publication number: 20120167396Abstract: A cable control set for extended reach garden shears, the extended reach garden shears having a cutting section comprising at two blades pivoted together, the cutting section attached to a first location of an extension rod, the cutting section capable of being driven by the cable. Two guiding rollers are pivoted onto a second location of the extension rod, and the cable is placed between the two guiding rollers, a rotatable member is pivoted onto an opposite side of the extension rod by a corresponding securing member; and a rotating arm is pivoted onto a top surface of the rotatable member via a corresponding securing member, and the two auxiliary rollers are pivoted onto the one end of the rotating arm, the cable is placed between the two auxiliary rollers.Type: ApplicationFiled: January 4, 2011Publication date: July 5, 2012Applicant: JIIN HAUR INDUSTRIAL CO.,LTD.Inventor: Shih-Piao Wu
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Patent number: 8209871Abstract: A cutting apparatus includes a housing that has a first end wall, a second end wall, a first side wall, a second side wall, a front wall and a rear wall. The first end wall has a blade aperture extending therethrough. A fixed blade is mounted in the housing and extends through the blade aperture. The fixed blade includes a sharp edge facing the second side wall. A pivoting blade is pivotally mounted in the housing and extends through the blade aperture. The pivoting blade includes a sharp edge facing the first side wall. The pivoting blade is movable from an open position to a closed position relative to the fixed blade. An actuator is mechanically coupled to the pivoting blade and pulls the pivoting blade toward the fixed blade when actuated.Type: GrantFiled: February 5, 2009Date of Patent: July 3, 2012Inventor: Chris D. Palmby
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Publication number: 20120131802Abstract: An extended reach garden shears includes a shear rod, a driven arm, an operating arm and a connecting piece. The shear rod has a fixed cutter base on one end. The fixed cutter base is formed with a hooked cutting edge. The fixed cutter blade is provided with a primary shaft hole and a secondary shaft hole. A driven arm is provided with a rotation hole and is pivotally connected to the primary shaft hole of the fixed cutter base. The driven arm is formed with a cutting blade to match the hooked cutting edge. The bottom end of the cutting blade extends to form a connecting portion. The distal end of the connecting portion is bent to form a driven rack. The operating arm is provided with a pivotal hole. The pivotal hole is pivotally connected to the secondary shaft hole of the fixed cutter base. The operating arm is formed with an operating rack adjacent to the pivotal hole. The operating rack is drivingly engaged with the driven rack.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Applicant: HO CHENG GARDEN TOOLS CO., LTD.Inventor: Yao-Chung Huang
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Publication number: 20120047749Abstract: A pruning hook includes a fixed seat, a cutter pivotally mounted on the fixed seat, a link connected with the cutter, a drive arm pivotally mounted on the fixed seat and connected with the link, a pull cord connected with the drive arm, and a restoring spring biased between the fixed seat and the drive arm. The cutter has a sliding slot provided with a plurality of locking teeth. A driving bolt secured on the link is movable in the sliding slot and is detachably locked onto one of the locking teeth. Thus, when the pull cord is pulled and slightly loosened in a staggered manner, the driving bolt is driven to engage each of the locking teeth to drive the cutter to pierce an object step by step, so that the cutter can shear the object in a multi-stage manner.Type: ApplicationFiled: August 31, 2010Publication date: March 1, 2012Inventor: Yao-Chung Huang
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Patent number: 8122607Abstract: An electric shears includes a trigger operable to be pulled, a motor which rotates in accordance with a pulling operation of the trigger, a screw shaft which rotates interlockingly with the motor, a nut which is screwed onto the screw shaft and is slidable with respect to the screw shaft in accordance with a rotation of the screw shaft, a fixed blade, a movable blade which is coupled to the nut and is movable with respect to the fixed blade, a detector which detects a pulled position of the trigger, and a controller which controls a rotation of the motor based on the pulled position of the trigger detected by the detector.Type: GrantFiled: July 17, 2007Date of Patent: February 28, 2012Assignee: MAX Co., Ltd.Inventors: Yoshihiro Maniwa, Syuichi Ishii
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Patent number: 8069573Abstract: A pruning hook includes an extension shank (30), a blade unit (10) including a fixed blade (12) mounted on the extension shank and a movable blade (13) pivotally connected with the fixed blade, a driving cord (15) connected with the movable blade, a slide (16) connected with the driving cord, a pull cord (20) connected with the slide, a control member (40) movably mounted on the extension shank and connected with a first end (21) of the pull cord, and a pulling member (50) movable relative to the extension shank and connected with a second end (22) of the pull cord. Thus, the blade unit is driven by the control member or the pulling member so that the blade unit has two operation modes to facilitate a user operating the pruning hook to perform a cutting action.Type: GrantFiled: July 21, 2009Date of Patent: December 6, 2011Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Publication number: 20110271532Abstract: Extended reach garden shears have a cutting section comprising two blades pivoted together; the cutting section is attached to an upper end of an extension rod via a swing device, and the cutting section is capable of being driven by a cable. The cable passes around a pulley and then into the extension rod, and after a predetermined length exits the extension rod and attaches to a sliding cover jacketed onto an external periphery of the extension rod. Two rollers are pivoted onto a predetermined location of the extension rod, and the cable is placed between the two rollers. Each roller further includes grooves around its outer periphery such that the cable is sandwiched in the grooves. Furthermore, a limiting sheet is mounted onto an extending portion of the extension rod adjacent to the two rollers.Type: ApplicationFiled: May 10, 2010Publication date: November 10, 2011Applicant: JIIN HAUR INDUSTRIAL CO.,LTD.Inventor: Shih-Piao Wu
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Patent number: 8046924Abstract: A hand-operated cutting tool includes first and second cutting members pivotally connected at a first pivot point, a lever having a longitudinal axis and pivotally connected to the first cutting member at a second pivot point, and a translatable curvilinear pivot connection between the lever and the second cutting member.Type: GrantFiled: March 3, 2009Date of Patent: November 1, 2011Assignee: Fiskars Brands, Inc.Inventors: Andrew Block, Scott Roelke
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Patent number: 8046925Abstract: A pruning hook includes an extension shank, a blade unit including a fixed blade mounted on the extension shank and a movable blade pivotally connected with the fixed blade, a driving cord to drive the movable blade, a slide movably mounted in the extension shank to drive the driving cord, a pull cord mounted in the extension shank to drive the slide, and a pulling member movable relative to the extension shank to drive the pull cord. Thus, the pulling member is pulled by a user's arm to drive the blade unit so that the blade unit is driven by a greater force applied by the user's arm and has a larger shearing force to perform a cutting action in an easier manner so as to cut a larger object easily and conveniently.Type: GrantFiled: May 26, 2009Date of Patent: November 1, 2011Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Publication number: 20110219626Abstract: A drill cutting attachment for severing an electrical conductor includes a housing, a stationary cutting blade connected with the housing, a movable cutting blade pivotally connected with the stationary cutting blade for displacement about a given cutting pivot axis between open and closed positions relative to the stationary cutting blade, and a pawl and ratchet arrangement for displacing the movable cutting blade from the open position toward the closed position, thereby to sever an electrical conductor positioned between the blades. The pawl and ratchet arrangement includes a transport pawl member that is longitudinally reciprocated by a rotary drive shaft via either an eccentric and crank arm drive arrangement, or a cam and follower drive arrangement. The drive shaft has a free end with a hexagonal cross-sectional configuration for connection with the chuck of an electric drill, and an attachment sleeve connects the housing with the electric drill body.Type: ApplicationFiled: August 25, 2009Publication date: September 15, 2011Applicant: WEIDMUELLER INTERFACE GMBH & CO. KGInventors: Thilo Broeker, Christoph Dierks
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Publication number: 20110219629Abstract: A pruning hook includes an extension pipe, a fixed blade mounted on the extension pipe, a movable blade pivotally connected with the fixed blade, a metallic driving chain connected with the movable blade, a sliding member movably mounted in the extension pipe and connected with the driving chain, a control cord mounted in the extension pipe and connected with the sliding member, and a control sleeve movably mounted on the extension pipe and connected with the control cord. Thus, the driving chain is made of metallic material so that the driving chain has a greater structural stiffness and can directly transmit the pulling force from the control cord without producing a tensile deformation during operation so as to enhancing the working efficiency of the pruning hook.Type: ApplicationFiled: March 11, 2010Publication date: September 15, 2011Inventor: Shih-Piao Wu
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Patent number: 7987603Abstract: A cutting tool of the scissor type includes a pruning head with fixed counter-blade and movable blade operated by a first cord sliding on sheaves. The pruning head is connected to a telescopic extension pole with two side shells that enclose a trolley carrying two trolley sheaves and a fixed sleeve that form a tackle housed within the shells. The telescopic pole is comprised of two pipes, one of which slides inside the other, which are provided with grooves, a sliding cap, a pipe-clamp and a handle, which define a path of a second cord that allows the telescopic lengthening of the pole while maintaining the tension of the cord and maintaining the position of the handle.Type: GrantFiled: March 26, 2010Date of Patent: August 2, 2011Assignee: Archman Di Pittau Giovanni & C.S.N.CInventor: Giovanni Pittau
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Patent number: 7971360Abstract: A power driven portable sheet metal cutter includes a head with two blades that mounts to a hand-held electric or pneumatic rotating power unit. The fixed blade has a primary shearing surface that has a convex or radiused cutting edge, a convex or radiused bevel, and a convex or radiused body feature. There is also a clearance radius and a nose radius so that the cutter can cut a wide variety of shapes and configurations of corrugated building panels. A head with a right hand set of blades predominately cuts curves to the right, and a head with a left hand set predominately cuts curves to the left.Type: GrantFiled: May 2, 2008Date of Patent: July 5, 2011Assignee: Kett Tool CompanyInventors: Mark Clark, Alexander Rozumovich
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Publication number: 20110107606Abstract: The present invention discloses a long reach pruner using movements and engagements of a blade unit, a first connection device, a second connection device, and an adjust device to adjust the swing range of the blade unit. The adjust device has a rotation element connected to a first press-fit element having a male thread on the surface thereof. When the rotation element is rotated downward, the male thread is driven to screw into a female thread of the first connection device and then fixed there; meanwhile, ratchet teeth of the first connection device engage with a ratchet of the second connection device. When the rotation element is rotated upward, the male thread is driven to screw out from the female thread and then fixed there; meanwhile, the ratchet teeth is separated from the ratchet. Thereby, the swing angle of the blade unit is adjusted and then fixed.Type: ApplicationFiled: February 25, 2010Publication date: May 12, 2011Inventor: Su-Hua SHAN
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Patent number: 7937839Abstract: An improved pole pruner for pruning a limb from a tree is provided which includes structure which grabs or grasps that portion of the tree limb to be detached as the cutting blade of the pole pruner severs the tree limb from the tree thereby preventing the severed tree limb from falling downwardly and injuring the operator of the pole pruner. The operator of the pole pruner may maneuver the pole pruner to a location wherein it is safe to release the severed tree limb from the pole pruner.Type: GrantFiled: October 22, 2008Date of Patent: May 10, 2011Inventors: Jeffrey G. Fidgen, Scotty D. Bolling
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Patent number: 7926186Abstract: A pike pole has a cutting-piercing member connected to one end of the pole. The cutting member normally extends outwardly from the pike pole. The cutting member can be released by a controlling member and be pivotally moveable to a position extending generally along the piercing member.Type: GrantFiled: October 28, 2005Date of Patent: April 19, 2011Inventors: John E. McLoughlin, Neocles G. Athanasiades, Toh M. Meng
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Publication number: 20110016731Abstract: A pruning hook includes an extension shank, a fixed blade mounted on a first end of the extension shank, a movable blade pivotally connected with the fixed blade, a driving cord connected with the movable blade to drive the movable blade relative to the fixed blade, a control member movably mounted on the extension shank and connected with the driving cord to drive the driving cord, and a positioning device mounted on the control member and detachably locked onto the extension shank to releasably lock the control member onto the extension shank. Thus, by provision of the positioning device, the movable blade and the fixed blade are disposed at a closed state when not in use to prevent the movable blade and the fixed blade from hurting a person.Type: ApplicationFiled: July 21, 2009Publication date: January 27, 2011Inventor: Shih-Piao Wu
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Publication number: 20110016730Abstract: A pruning hook includes an extension shank (30), a blade unit (10) including a fixed blade (12) mounted on the extension shank and a movable blade (13) pivotally connected with the fixed blade, a driving cord (15) connected with the movable blade, a slide (16) connected with the driving cord, a pull cord (20) connected with the slide, a control member (40) movably mounted on the extension shank and connected with a first end (21) of the pull cord, and a pulling member (50) movable relative to the extension shank and connected with a second end (22) of the pull cord. Thus, the blade unit is driven by the control member or the pulling member so that the blade unit has two operation modes to facilitate a user operating the pruning hook to perform a cutting action.Type: ApplicationFiled: July 21, 2009Publication date: January 27, 2011Inventor: Shih-Piao Wu
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Patent number: 7845082Abstract: A hand tool for cutting includes a first handle, a second handle pivotably connected to the first handle, and a cutting head including a fixed first blade and a pivotable second blade to provide cutting action with the first blade. The first and second handles are movable between a fully retracted configuration and a fully extended configuration to selectively adjust the length of the handles. The cutting head is selectively rotatable about a central longitudinal axis and carries the blades upon rotation of the cutting head to move the blades between a plurality of different orientations relative to the first and second handles. The cutting head includes a connector operably connecting the second handle and the second blade so that pivoting motion of the second handle moves the second blade relative to the first blade to provide cutting action therebetween.Type: GrantFiled: March 31, 2005Date of Patent: December 7, 2010Assignee: Ames True Temper, Inc.Inventors: David Demar, Thomas VanDyk, Roland Charriez, Michael Ballone, John Kiely, Keith Kristiansen, Melissa Fisher, Brian J. Conaway, Mandi Reese, Terry M. Birchler, Mark C. Eyman
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Publication number: 20100299939Abstract: A pruning hook includes an extension shank, a blade unit including a fixed blade mounted on the extension shank and a movable blade pivotally connected with the fixed blade, a driving cord to drive the movable blade, a slide movably mounted in the extension shank to drive the driving cord, a pull cord mounted in the extension shank to drive the slide, and a pulling member movable relative to the extension shank to drive the pull cord. Thus, the pulling member is pulled by a user's arm to drive the blade unit so that the blade unit is driven by a greater force applied by the user's arm and has a larger shearing force to perform a cutting action in an easier manner so as to cut a larger object easily and conveniently.Type: ApplicationFiled: May 26, 2009Publication date: December 2, 2010Inventor: Shih-Piao Wu
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Publication number: 20100299938Abstract: A pruning hook includes an extension shank (10), a blade unit (40) including a fixed blade (42) mounted on the extension shank and a movable blade (41) pivotally connected with the fixed blade, a driving cord (100) to drive the movable blade, a sliding member (20) movably mounted in the extension shank to drive the driving cord, a control cord (200) mounted in the extension shank to drive the sliding member, and a control member (30) movably mounted on the extension shank to drive the control cord. Thus, the extension shank protects the control cord and the driving cord to prevent the control cord and the driving cord from being hooked or scratched by foreign objects, such as branches and the like, during operation of the blade unit.Type: ApplicationFiled: May 26, 2009Publication date: December 2, 2010Inventor: Shih-Piao Wu
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Publication number: 20100236081Abstract: A tree pruner includes a hook set, a blade pivotally mounted on the hook set, a main linkage pivotally connected to the hook set, an auxiliary linkage set pivotally connected to the main linkage and the blade, a first pulley mounted to the main linkage, a second pulley mounted to the hook set and a rope coiling the two pulleys. The auxiliary linkage set has a first linkage and a second linkage pivotally connected to each other for elongating a lever arm from the main linkage.Type: ApplicationFiled: August 27, 2009Publication date: September 23, 2010Inventor: Wen-Li Guo
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Publication number: 20100199502Abstract: The invention relates to pruning shears comprising a cutting head (12) with a spring-loaded blade (18) acting in cooperation with a counter blade (20), a drive mechanism (16) connected to the cutting head (12), and an elongated handle (14) connected to the drive mechanism (16). The drive mechanism comprises a first and a second counterpart (32, 34), optionally rotating with respect to one another about an axis (36), allowing the cutting head (12) to be adjusted with respect to the elongated handle (14), and an upper line arrangement allowing the blade (18) to be turned about a hinge point (19) and the cutting head to be adjusted in such a manner that the blade (18) does not rotate about the hinge point (19).Type: ApplicationFiled: May 20, 2008Publication date: August 12, 2010Inventors: Olavi Lindén, Markus Paloheimo
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Publication number: 20100192385Abstract: Cutting tool of the scissor type with pruning head with fixed counter-blade and movable blade operated by a transmission arm on which a cord acts, sliding on sheaves. Said pruner head being connected to a telescopic extension pole by means of two side shells characterised in that the transmission of the command occurs by means of sheaves forming a tackle housed within said shells, said telescopic pole consisting of two pipes, one of which re-entering inside the other one, provided with grooves, sliding cap, pipe-clamp and command handle constituting a path of the command cord such as to allow the telescopic lengthening of the pole maintaining said cord in tense condition and maintaining the position of the command handle fixed.Type: ApplicationFiled: March 26, 2010Publication date: August 5, 2010Inventor: Giovanni Pittau
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Publication number: 20100162574Abstract: A pruner having a housing, a motor mounted in the housing, a handle, an upper blade, a lower blade, and a guide apparatus. The guide apparatus is a long shaped piece with a portion that has the same angle of curvature as one of the blades. The guide apparatus is longer than one of the blades to allow the guide apparatus to assist a user in selecting a specific tree limb to be cut thereby minimizing the unintentional removal of an incorrect tree limb. The guide apparatus may also be removed if the pruner is going to be used to cut lower limbs or in confined spaces.Type: ApplicationFiled: December 22, 2009Publication date: July 1, 2010Inventors: Fangjie Nie, Toshinari Yamaoka
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Patent number: 7716840Abstract: A cutter tool includes first and second elongate members carrying a cutting blade pivotally attached with the second member and slidably attached with the first member to enable cutting a tubular workpiece with an increased mechanical advantage. The tool has a first handle having a cradle for supporting a tube to be cut, a second handle pivotally attached to the first handle, a cutter blade attached to the second handle, and a pin and slot between the cutter blade and the first handle. The slot configuration provides for displacement of the blade relative to the cradle to initially apply a higher cutting force which is followed by a transition to a lower cutting force and a higher rate of blade displacement.Type: GrantFiled: February 20, 2007Date of Patent: May 18, 2010Assignee: Emerson Electric CoInventors: Nyayadhish Sunil Nandkumar, Pathak Sanjay Sitacharan, David Lee Machovina, Steven Michael Macsay, Glen Richard Chartier
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Publication number: 20100095532Abstract: An improved pole pruner for pruning a limb from a tree is provided which includes structure which grabs or grasps that portion of the tree limb to be detached as the cutting blade of the pole pruner severs the tree limb from the tree thereby preventing the severed tree limb from falling downwardly and injuring the operator of the pole pruner. The operator of the pole pruner may maneuver the pole pruner to a location wherein it is safe to release the severed tree limb from the pole pruner.Type: ApplicationFiled: October 22, 2008Publication date: April 22, 2010Inventors: Jeffrey G. Fidgen, Scotty D. Bolling
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Patent number: 7658011Abstract: A lopper includes a slender rod and a pruning means mounted on a top of the rod. The slender rod includes an inner tube and an outer tube telescoped mutually such that the inner tube is shiftable in the outer tube for changing the length it jutting out from the outer tube. An extension-control unit is provided at the border region between the inner tube and the outer tube for positioning the inner tube. A fist actuating unit and a second actuating unit are provided at the outer surface of the outer tube. The fist and second actuating units are connected with the pruning means through a first rope, a second rope and a third rope so that when a user pulls the first or second actuating unit, a shear assembly of the pruning means can be closed to cut branches and leaves of plants.Type: GrantFiled: August 7, 2007Date of Patent: February 9, 2010Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: RE45488Abstract: A hand-operated cutting tool includes first and second cutting members pivotally connected at a first pivot point, a lever having a longitudinal axis and pivotally connected to the first cutting member at a second pivot point, and a translatable curvilinear pivot connection between the lever and the second cutting member.Type: GrantFiled: October 31, 2013Date of Patent: April 28, 2015Assignee: Fiskars Brands, Inc.Inventors: Andrew Block, Scott Roelke