One Movable Blade Patents (Class 30/249)
  • Publication number: 20090271991
    Abstract: 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: Application
    Filed: May 2, 2008
    Publication date: November 5, 2009
    Applicant: KETT TOOL COMPANY
    Inventors: Mark Clark, Alexander Rozumovich
  • Publication number: 20090241351
    Abstract: 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: Application
    Filed: July 17, 2007
    Publication date: October 1, 2009
    Applicant: MAX CO., LTD.
    Inventors: Yoshihiro Maniwa, Syuichi Ishii
  • Patent number: 7594333
    Abstract: A gardening tool with a retaining assembly includes a first rod pivotally installed to a second rod; the first rod having a track for assembling a retaining portion; the first rod further having an elastic unit at a side having the track; the second rod being rotatably installed to the first rod; one end of the second rod being formed with a recess; and the retaining portion being movable in the track; the elastic unit resisting against the retaining portion so as to be buckled to the recess and thus an orientation of the second rod is fixed.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: September 29, 2009
    Inventor: Chang-Ying Chen
  • Patent number: 7574805
    Abstract: A pruning device is disclosed including a first handle coupled at a first end to a first jaw and a second handle, a first end of the second handle coupled to a second jaw. The first jaw and the second jaw are pivotally connected. A rotatable handle is interfaced to a second end of the first handle such that it rotates with respect to the second handle. A first end of a flexible medium is affixed to the second handle and a second end of the flexible medium affixed to the rotatable handle, whereas turning of the rotatable handle winds the flexible medium around the rotatable handle and the second handle is pulled towards the first handle.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: August 18, 2009
    Inventor: Ulf Lindroth
  • Publication number: 20090119929
    Abstract: The tree trimming apparatus includes a cutting head assembly adapted to be mounted to the end of a pole by a mounting bracket. A main lever arm is pivotally mounted at a first end to a support arm of a hook of the cutting head assembly, and a pulley receiving a rope for manual operation of the cutting or shearing blade is connected to the main lever arm. First and second parallel spaced apart link members are pivotally connected at their upper end portions to first and second sides of the blade lever arm, and are pivotally connected at their lower end portions to the first and second sides of the main lever arm, medially and near an end of the main lever arm. A coil return spring is connected between the lever arm of the cutting blade and a point on the main lever arm medially of the link members.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 14, 2009
    Inventors: Gary J. Monnig, Jules P. Paquet, Marc J. Paquet
  • Patent number: 7520886
    Abstract: An endoscopic cutting device is disclosed. The device comprises an inner catheter including an inner wall having an opening formed therethrough. The inner wall further has a cutting blade moveably disposed thereon and biasingly extends through the opening. The inner wall has a receiving member disposed thereon and is configured to cooperatively receive the cutting blade. The device further comprises an outer catheter including an outer wall moveably disposed about the inner catheter. The outer wall has an aperture formed therethrough. The aperture is configured to moveably align with the opening of the inner wall for allowing the cutting blade to biasingly extend through the opening and biasingly engage the cutting blade with the receiving member to cut.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 21, 2009
    Assignee: Wilson-Cook Medical Inc.
    Inventor: Vihar C. Surti
  • Publication number: 20090090009
    Abstract: This invention relates to a demolitions shears, including a body having a fixed jaw and a movable jaw that pivots with respect to the fixed jaw. A main shaft for pivotally mounting the moveable jaw to the body. A hydraulic cylinder for actuating the movable jaw to pivot. The movable jaw includes a first rotation stop and the main shaft including a second rotation stop. When the main shaft is installed in the moveable jaw, the first rotation stop and the second rotation stop are coupled to prevent relative rotation between the main shaft and the movable jaw, without axially fixing the main shaft to the movable jaw. A removable stop assembly is constructed and arranged to limit axial movement between the main shaft and the movable jaw.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 9, 2009
    Applicant: THE STANLEY WORKS
    Inventors: Jaret L. WILKINS, Shane Laurence BUBACZ
  • Publication number: 20090077813
    Abstract: A gardening tool with a retaining assembly comprises a first rod pivotally installed to a second rod; the first rod having a track for assembling a retaining portion; the first rod further having an elastic unit at a side having the track; the second rod being rotatably installed to the first rod; one end of the second rod being formed with a recess; and the retaining portion being movable in the track; the elastic unit resisting against the retaining portion so as to be buckled to the recess and thus an orientation of the second rod is fixed.
    Type: Application
    Filed: November 26, 2008
    Publication date: March 26, 2009
    Inventor: Chang-Ying Chen
  • Publication number: 20090038162
    Abstract: A lopper comprises a slender rod and a pruning means mounted on a top of the rod. The slender rod is composed of 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 first actuating unit and a second actuating unit are provided at the outer surface of the outer tube. The first 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: Application
    Filed: August 7, 2007
    Publication date: February 12, 2009
    Inventor: Su-Hua Shan
  • Publication number: 20090025828
    Abstract: A tree pruner includes a rod and a fixed part is fixed to the rod and an arm has a first end pivotably connected to the fixed part. A spring is connected between the fixed part and a second end of the arm. A movable part has an end fixed to the arm and a mediate portion of the movable part is pivotably connected to the fixed part. A positioning seat is movably positioned on the rod and a stationary pulley is connected to the positioning seat. A movable pulley is connected to the arm and a rope reeves through the stationary pulley and the movable pulley. When pulling the rope, the arm is pivoted to move the movable part toward the fixed part to prune branches when the arm is pivoted.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventor: Pao-Lu Chen
  • Patent number: 7441337
    Abstract: Pruning shears or corresponding cutters comprising a first elongated handle part, a first blade part arranged as an extension of the first handle part, a second blade part pivoted to the first blade part from a first pivot point, and a second elongated handle part pivoted at its first end to the second blade part from a second pivot point. The second elongated handle part is connected to the first elongated handle part with at least one shaft pivotally connected to both the first and second elongated handle parts. The first and second elongated handle parts are arranged in the open position of the shears in remain along their entire length at a distance from each other enabling the use of the shears with one hand along the entire length of the handle parts.
    Type: Grant
    Filed: February 26, 2005
    Date of Patent: October 28, 2008
    Assignee: Fiskars Brands Finland OY AB
    Inventors: Olavi Linden, Markus Paloheimo
  • Publication number: 20080141540
    Abstract: A gardening tool with a retaining assembly comprises a first rod pivotally installed to a second rod; the first rod having a track for assembling a retaining portion; the first rod further having an elastic unit at a side having the track; the second rod being rotatably installed to the first rod; one end of the second rod being formed with a recess; and the retaining portion being movable in the track; the elastic unit resisting against the retaining portion so as to be buckled to the recess and thus an orientation of the second rod is fixed.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 19, 2008
    Inventor: Chang-Ying Chen
  • Publication number: 20080115368
    Abstract: A pair of gardening shears comprises: a first shear element having a cutting blade portion at one end, a combining portion at the opposite end comprising a pivot hole and a shear element combining hole, and a first handle further attached to the first shear element; a second shear element having an anvil blade portion at one end, and a combining portion at the opposite end comprising a pivot hole and a shear element combining hole as well as a handle shaft combining hole a handle shaft axially positioned within a second handle; a pivot member, a shear element combining pin; and a shear element pivot shaft.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 22, 2008
    Inventor: Su-Hua Shan
  • Publication number: 20080052916
    Abstract: A tree pruner includes a stationary cutting blade mounted on a handle, a driving bar moveably engaged with the stationary cutting blade and moveable by a pull cord, a spring member connected between the stationary cutting blade and the driving bar, a movable cutting blade pivotally mounted on the stationary cutting blade and the driving bar and moveable relative to the stationary cutting blade by the actuation of the driving bar; and a positioning member pivotally mounted on the stationary cutting blade and pivotable between a first position where the positioning member is engaged with the driving bar such that the driving bar can not drive the moveable cutting blade to move and a second position where the positioning member is disengaged with the driving bar such that the driving bar is moveable to drive the moveable cutting blade to move relative to the stationary cutting blade.
    Type: Application
    Filed: December 28, 2006
    Publication date: March 6, 2008
    Inventor: Thomas Lin
  • Patent number: 7322111
    Abstract: A lever actuated cutting tool that allows ground level cutting of shrubs and small trees from a standing position. The design of the cutting tool takes advantage of the principles of leverage and resistive force, and also incorporates a pendulum swing, to provide a tool that is able to generate a tremendous amount of cutting force. A padded handle is provided at the long end of the lever and a first sharpened steel blade is attached to the cutting end of the lever. The lever is rotate-ably attached to the fulcrum and the fulcrum lies on the ground during operation. A second sharpened steel blade is immovably attached to the base of the fulcrum, and the trunk of the shrub to be removed is positioned in between the two blades. The cutting action is accomplished by moving the lever downward toward the ground. The force applied by the user is multiplied by the lever and transferred to the first cutting blade.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: January 29, 2008
    Inventors: Douglas C. Meador, Marvin T. Meador
  • Publication number: 20080016701
    Abstract: A pruner has a movable handle/blade assembly pivotally coupled to a static handle/blade assembly by a pivot assembly carried by the static handle. The pivot assembly comprises a bush within the static handle and on which the movable handle/blade assembly is pivotally mounted, a spring for pivotally biasing the movable handle/blade assembly to an open position being retained by the pivot assembly within the static handle. Both the movable blade and static blade are mounted on the bush and are clamped laterally between two separate parts of the bush which are assembled together in screw threaded engagement, and the two blades are supported from the bush by a bearing ring of low friction material.
    Type: Application
    Filed: January 25, 2007
    Publication date: January 24, 2008
    Applicant: ITW AUSTRALIA PTY LIMITED
    Inventors: Nathan Pollock, James Collins, Lee Rodezno, Peter Williams
  • Patent number: 7047853
    Abstract: A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second blade pivoted on the fulcrum shaft at one end of the blade, and between the attachment positions of the first blade and the first element such that relative rotation of the first and second elements causes relative rotation of the first and second blades producing a shearing action.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: May 23, 2006
    Inventor: Donald J. Brockhage
  • Patent number: 7003885
    Abstract: A wire cutter having a handle, a fixed cutting blade mounted on the handle, a lever pivotally connected to the handle, and a stop on the lever for engagement with the fixed cutting blade is disclosed.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: February 28, 2006
    Assignee: L&P Property Management Company
    Inventors: Barton Wade Daniel, Glenn F. Ellison, Scott G. Shepard
  • Patent number: 6966114
    Abstract: A wire cutter having a handle, a fixed cutting blade mounted on the handle, a lever pivotally connected to the handle, and a stop on the lever for engagement with the fixed cutting blade is disclosed. The wire cutter also includes a spring to bias the lever to an “open” position.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: November 22, 2005
    Assignee: L&P Property Management Company
    Inventors: Barton Wade Daniel, Glenn F. Ellison, Scott G. Shepard
  • Patent number: 6935031
    Abstract: Gear-driven shears include two grips, the fixed jaw, and the movable jaw and gear wheel module. The fixed jaw and the first grip are connected together at a joint of plate assembly module. The corresponding ends of movable jaw and the second grip are installed on the first pivot axle and second pivot axle of the plate assemble module. The characteristic of the invention is that one curved plate is installed additionally on one side of the movable jaw. Its first end is also installed on the first pivot axle of the plate assembly module sharing the same rotating point with the movable jaw. Meanwhile it is installed on the first edge of the curved plate together with the first tooth edge of the movable jaw. The second edge of the curved plate is equipped with wedge, which is locked in the notch on one side of the movable jaw. The middle section of curved plate is made into a curve.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: August 30, 2005
    Assignee: Hung Chuan Hsian Industries Co., Ltd.
    Inventor: Chin-Chi Huang
  • Patent number: 6904684
    Abstract: A strapping packaging device includes a compressing device, a cutting device, a strap-rolling device and a strap-pressing device. The eccentric cam of the compressing device is actuated to rotate by an operating rod, and the eccentric cam presses down a slide base together with a press block to compress on the strap-clamping member of a packaging strap. The strapping packaging device can not only precisely compress on the strap-clamping member, but also cut off the packaging strap easily at the same time.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: June 14, 2005
    Inventor: Hsiu-Man Yu Chen
  • Patent number: 6901665
    Abstract: A pneumatic pruning hook with a telescopic shank includes a handle having a chamber defined therein and connected to a compressed air source, a valve mounted in the chamber for selectively allowing the compressed flowing into the chamber. The telescopic shank includes an outer tube longitudinally secured to the handle and an inner tube partially slidably received in the outer tube. A work device is secured on the inner tube opposite to the handle. A spiraled hose is received in the telescopic shank and respectively connected the handle and the work device for guiding the compressed air into the work device. A safety is mounted to the work device for selectively engaged to the work device to prevent the work device from an unexpected operation.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: June 7, 2005
    Inventors: Yung Yung Sun, Chuan Ching Cheng
  • Publication number: 20040237314
    Abstract: An improved structure of a pruning hook is essentially comprised of a pair of shears substantially similar to the prior art including a drive arm, a hook, and a mobile knife in sequence and a lopping saw provided at the top of an extension rod characterized by that the top of the drive arm being pivoted to an end sleeve at the top of the rod; a restriction chain with a pulley being drawn and inserted to the rod; and the saw being locked to where by the end sleeve to execute pruning with a single hand by hooking the twigs and pulling down the rod to draw the drive arm and the swinging mobile knife.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Inventor: Chih-Chuan Wu
  • Patent number: 6769183
    Abstract: A cable cutting tool includes a first arm having a first jaw member connected to a first handle member and a second arm having a second jaw member pivotally connected to a second handle member. The first and second arms are connected by a fastener and are pivotal with respect to one another about a longitudinal axis of the fastener. A tension element is mounted on the second jaw member and is positioned wholly outside of and out of contact with the second handle member. A take-up element is mounted for rotation on the second jaw member. A latching mechanism is mounted on the second jaw member and is configured to inhibit rotation of the take-up element in a first direction. The take-up element is uninhibited by the latching mechanism when rotating in a second direction. A chain extends over the take-up element and has a first end attached to the first arm and a second end attached to the tension element. The chain is positioned wholly outside of and out of contact with the second handle member.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: August 3, 2004
    Assignee: Hastings Fiber Glass Products, Inc.
    Inventor: Mark A. Schmidt
  • Publication number: 20040143973
    Abstract: A wire cutter having a handle, a fixed cutting blade mounted on the handle, a lever pivotally connected to the handle, and a stop on the lever for engagement with the fixed cutting blade is disclosed.
    Type: Application
    Filed: January 27, 2003
    Publication date: July 29, 2004
    Inventors: Barton Wade Daniel, Glenn F. Ellison, Scott G. Shepard
  • Publication number: 20040134073
    Abstract: A manual cable cutter includes a pair of handles linked to each other in upper parts thereof with two frame plates, one of the pair of handles being adapted as a stationary handle and the other as a rocking handle; a stationary cutting blade having a basal terminal part fixed, with soft bolts capable of being sheared, onto one of the two frame plates in a state superposed on the one frame plate; a rotary cutting blade furnished on an arcuate outer surface thereof with a continuously formed toothed part and pivotally supported rotatably on the stationary cutting blade; a first energizing spring and a second energizing spring disposed between the two frame plates; and a backstop claw meshed with the toothed part of the rotary cutting blade under pressure of the first energizing spring, and a feed claw meshed with the toothed part of the rotary cutting blade under pressure of the second energizing spring and disposed in an upper part of the rocking handle, the backstop claw and the feed claw both being disposed
    Type: Application
    Filed: April 9, 2003
    Publication date: July 15, 2004
    Inventor: Minoru Kochi
  • Patent number: 6748663
    Abstract: A lopper used to perform lopping, pruning and similar operations includes a lopping head having a spring-biased blade cooperating with a jaw, a drive mechanism connected to the lopping head and an elongate housing connected to the drive mechanism.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: June 15, 2004
    Assignee: Fiskars Consumer Oy AB
    Inventor: Erkki Olavi Lindén
  • Publication number: 20040107582
    Abstract: The invention concerns a A pair of shears with reduced resistance is disclosed including comprising two levers articulated on a hinge forming a cross with, on one side, two shanks capable of being brought together manually, and on the other side, a cutting blade and a cutting block or hook.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 10, 2004
    Inventor: Pascal Jodas
  • Publication number: 20040045175
    Abstract: A tree pruner has a extension rod, a cutting set and a pull cord. The cutting set is mounted on the top end of the extension rod and has a stationary blade, a pivoting blade, an actuating lever and a pinion gear. The stationary blade is securely connected to the top end of the extension rod. The pivoting blade is pivotally attached to the stationary blade and has multiple driven teeth. The actuating lever is pivotally attached to the stationary blade and has multiple actuating teeth. The pinion gear is rotatably mounted on the stationary blade and engages the driven teeth on the pivoting blade and the actuating teeth on the actuating lever. Accordingly, the cutting set can easily cut off a tree branch, and the force applied to the pull cord is magnified at the blades of the tree pruner.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 11, 2004
    Inventor: Ming-Shan Jang
  • Publication number: 20040040158
    Abstract: A tool for use in cutting cable, preferably ACSR cable, includes first and second blades having cutting configurations. The first and second blades are pivotally connected and a handle are attached to each blade. Movement of the handles rotates the blades about the pivot point. Cable positioned between the cutting configurations is systematically cut by the cutting configurations as the blades are rotated toward each other. Each cutting configuration includes first and second sharp edges and a blunt edge positioned therebetween which defines a concave recess. The first and second sharp edges are used to cut the aluminum strands surrounding the steel cable. During the cutting of the aluminum strands, the steel portion of the cable is urged into the concave recess defined by the blunt edges. The steel cable is then sheared using the blunt edges.
    Type: Application
    Filed: August 28, 2002
    Publication date: March 4, 2004
    Inventor: Terence G. Stalder
  • Patent number: 6694621
    Abstract: A pruning device for cutting tree limbs includes a head assembly mounted atop an elongated pole and activated by a tether line. The head assembly can be pivoted to various angles relative to the pole axis without impairing the effectiveness of the tether line to apply pulling force for achieving cutting of upwardly angled tree limbs.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: February 24, 2004
    Inventors: Robert E. Boley, Karen S. Boley
  • Publication number: 20040031156
    Abstract: A lopper used to perform lopping, pruning and similar operations includes a lopping head having a spring-biased blade cooperating with a jaw, a drive mechanism connected to the lopping head and an elongate housing connected to the drive mechanism.
    Type: Application
    Filed: August 15, 2002
    Publication date: February 19, 2004
    Applicant: Fiskars Consumer Oy Ab
    Inventor: Erkki Olavi Linden
  • Publication number: 20040020059
    Abstract: A shearing tool has a fulcrum shaft, a first blade rigidly attached to the fulcrum shaft, a first element also rigidly attached to the fulcrum shaft and spaced apart on the shaft from the first blade, and a second blade contiguous with a second element, the second blade pivoted on the fulcrum shaft at one end of the blade, and between the attachment positions of the first blade and the first element such that relative rotation of the first and second elements causes relative rotation of the first and second blades producing a shearing action.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Inventor: Donald J. Brockhage
  • Patent number: 6681492
    Abstract: A tree pruner includes a first handle, a second handle, a fixed jaw plate, a movable jaw plate, a gear, a check plate, and a push plate. The movable jaw plate is actuated by the gear to bring about a first scissors action in conjunction with the fixed jaw plate at such time when the second handle is swivelled toward the fixed jaw plate such that the gear is pushed by the push plate to turn. The gear is arrested by the check plate so as to keep the movable jaw plate in the stationary state to facilitate a series of continuous scissors actions, with the cutting edge of the movable jaw plate remaining in the incision made into a tree twig during the first scissors action.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: January 27, 2004
    Inventor: Yao-Chung Huang
  • Patent number: 6671963
    Abstract: A tree pruner includes a blade portion, a handle portion, and a brace portion for fastening detachably the blade portion and the handle portion. The brace portion is formed of a connection member pivoted at one end with the blade portion by a pivot, and a bracing member pivoted at one end with the other end of the connection member such that the other end of the bracing member detachably fastens the handle portion in conjunction with a control member and a retaining member.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: January 6, 2004
    Inventor: Yu-Hsin Huang
  • Publication number: 20030221321
    Abstract: Hedge shears has a pair of hands, a pair of blades and a rotatable connector secured between the handles and the blades. Each handle has a handle drive slot and each blade has a blade drive slot. The rotatable connector consists of two connecting plates. Each connecting plate has an elongated hole defined in the connecting plate and has a transverse abutting plate formed on an edge of the connecting plate adjacent to the transverse abutting plate of the other connecting plate. A pivot hole is defined in each abutting plate, and a shaft passes through the pivot holes. Two shaft hubs hold opposite ends of the shaft, and a pin secured under each hub passes through the drive slots in the handles or the blades. The blades are able to rotate around the shaft and be operated by the handles by moving the shaft longitudinally.
    Type: Application
    Filed: June 3, 2002
    Publication date: December 4, 2003
    Inventor: Kun-Chia Cheng
  • Patent number: 6648746
    Abstract: A toe web cutter has a pivoted inner hooked blade and stationary outer blades adjacent to the sides and end of the inner blade. Cutting edges on the adjacent blades produce an elongated cut to remove the web from between the toes of a carcass. The stationary outer blades allow the tool to be aligned before the cut is made by placing the stationary blades in contact with the web at the desired location for the cut. The inner blade is pivoted by a trigger-operated pneumatic drive mechanism, which includes a piston and a drive rod. The drive rod is connected through a link to drive the inner blade. The link produces a side load on the drive rod that is counteracted by a wheel mounted on the end of the drive rod and by a fixed reaction plate that supports the wheel as it rolls.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: November 18, 2003
    Assignee: Jarvis Products Corporation
    Inventor: Peter Gwyther
  • Patent number: 6640442
    Abstract: A cutting stroke-adjustable pruning shears is constructed to include a fixed jaw and a movable jaw pivoted together, the movable jaw having an elongated slot and a plurality of retaining notches in one long side of the elongated slot, a holder shell, the holder shell having two parallel side panels pivoted to a middle part of the fixed jaw at two sides and a spine connected between the parallel side panels, a coupling arm, the coupling arm having one end pivoted to the parallel side panels of the holder shell and an opposite end mounted with a pivot coupled to the elongated slot of the movable jaw and selectively positioned in one of the retaining notches, a tension spring disposed inside the holder shell and connected between the holder shell and the coupling arm, and two handles respectively fastened to the fixed jaw and the holder shell.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: November 4, 2003
    Inventor: Thomas Lin
  • Publication number: 20030177644
    Abstract: A tree pruner has a support rod, a cutting set and pull cord. The cutting set is mounted on the top end of the support rod and has a fixed blade, a moving blade and a driving lever. The fixed blade is securely connected to the top end of the support rod and has multiple fixed teeth formed on an edge of the fixed blade. The cutting blade is pivotally attached to the fixed blade. The driving lever is pivotally attached to one end of the cutting blade and has multiple moving teeth formed on the driving lever to engage with the fixed teeth on the fixed blade. With such a cutting set, the travel of pulling the pull cord can be increased, such that the cutting set can cut off with ease a tree part with a large diameter.
    Type: Application
    Filed: March 25, 2002
    Publication date: September 25, 2003
    Inventor: Kun-chia Cheng
  • Publication number: 20030167640
    Abstract: A hand-operated pruner for trimming vegetation includes a main body having a cutting member and cutting blade mounted at a forward end thereof and a finger grip lever pivotably mounted at a rearward end. A linkage structure extends through a cavity in the main body and operatively interconnects the lever with at least one of the cutting member and the blade.
    Type: Application
    Filed: July 18, 2002
    Publication date: September 11, 2003
    Applicant: AMES TRUE TEMPER, INC.
    Inventors: Edward A. Heck, John R. Grishaber
  • Publication number: 20030159292
    Abstract: A gardening shears structure in which one handgrip has a circular recess sealed by a rotary plug. The rotary plug has a knob at the top that facilitates minimal force rotation during extrication, with a spring situated inside the circular recess enabling the smooth removal of the rotary plug, and a pliant body permeated with oil is inserted into a hollow sleeve at the bottom of the rotary plug such that it is partially exposed. After flower and branch cutting, a physically-worn or hand-carried cloth serves as a means of simple cleaning and following the wiping away of sap, leaf fragments, soil, and other grimy matter on the two blades of the truncating section, the oil permeating the pliant body is applied to shield them from air exposure to prevent corrosion and lubrication, thereby achieving the objective of maintenance.
    Type: Application
    Filed: March 27, 2002
    Publication date: August 28, 2003
    Inventor: Shyh-Piao Wu
  • Publication number: 20030150118
    Abstract: The beveled face of the cutting blade presents, in cross-section and going from its cutting edge: a first zone making a first angle with the plane face of the cutting blade; and a second zone making a second angle with the plane face of the cutting blade, the second angle being smaller than the first angle. The second angle has a minimum value in the region of the cutting blade close to the shoulder and a maximum value in a region of the cutting blade close to the tip of the cutting blade.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 14, 2003
    Inventor: Antoine Deville
  • Publication number: 20030145470
    Abstract: A pair of gardening shears comprises an upright arm, a hand grip mounted on the top end of the upright arm, a fork fastened with the bottom end of the upright arm, a base fastened pivotally with the fork, and a blade mount pivoted to the base. The hand grip is provided with a fixed grip and a movable grip. The blade mount is provided with a fixed blade and a movable blade which is linked with the movable grip by two transmission rods. The base can be adjusted in rotational angle. The movable grip of the hand grip can be fixed at an angular position. The blade mount can be adjusted in its shearing angle.
    Type: Application
    Filed: February 4, 2002
    Publication date: August 7, 2003
    Inventor: Yu-Hsin Huang
  • Publication number: 20030136008
    Abstract: A cutting stroke-adjustable pruning shears is constructed to include a fixed jaw and a movable jaw pivoted together, the movable jaw having an elongated slot and a plurality of retaining notches in one long side of the elongated slot, a holder shell, the holder shell having two parallel side panels pivoted to a middle part of the fixed jaw at two sides and a spine connected between the parallel side panels, a coupling arm, the coupling arm having one end pivoted to the parallel side panels of the holder shell and an opposite end mounted with a pivot coupled to the elongated slot of the movable jaw and selectively positioned in one of the retaining notches, a tension spring disposed inside the holder shell and connected between the holder shell and the coupling arm, and two handles respectively fastened to the fixed jaw and the holder shell.
    Type: Application
    Filed: April 3, 2002
    Publication date: July 24, 2003
    Inventor: Thomas Lin
  • Publication number: 20030106223
    Abstract: A tree pruner comprises a fixed blade, a movable blade, and a swiveling piece. The movable blade is provided with a continually slanted through slot. The swiveling piece is provided with a through slot. In conjunction with a control rod which is slidably received in the continually slanted through slot of the movable blade and the through slot of the swiveling piece, the movable blade is actuated by the swiveling piece to bring about a cutting effect in one or more steps.
    Type: Application
    Filed: December 8, 2001
    Publication date: June 12, 2003
    Inventor: Pong-Chun Lee
  • Publication number: 20030097757
    Abstract: A branch shears structure includes a fixed blade, a sleeve secured on a lower portion of the fixed blade, a bar secured in the sleeve, a first pulley mounted on the sleeve, a mobile blade pivotally mounted on a mediate portion of the fixed blade, an elongated linking plate having a lower portion pivotally mounted on an upper portion of the fixed blade, a short linking plate having a first end pivotally mounted on the mobile blade and a second end pivotally mounted on the elongated linking plate, a second pulley mounted on an upper portion of the elongated linking plate, a rope in turn passing through the first pulley and the second pulley and extending outward from the second pulley for pulling the elongated linking plate which moves the short linking plate which moves the mobile blade to pivot relative to the fixed blade, and a tension spring having a first secured to the fixed blade and a second end secured to the elongated linking plate.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Inventor: Jeng-Yang Chung
  • Publication number: 20030070300
    Abstract: A pivoting structure is provided to pivot together a first working block, a cutting blade, and a second working block of a pair of shears in such a manner that the cutting blade and the second working block work against each other to effect the scissors action. The pivoting structure comprises a first locating slot disposed in the first working block, a pivot located in the first locating slot, a second locating slot disposed in the second working block, and a nut engaged with the pivot and located in the second locating slot.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Applicant: Hung Chuan Hsian Industries Co., Ltd.
    Inventor: Chin-Chi Huang
  • Patent number: 6526664
    Abstract: A low profile tree pruning tool is provided having a head assembly coupled to an upper region of an elongated handle member and a pulley coupled to the head where the pulley is configured to rotate about a fixed axis. A lopping mechanism is coupled to the head and an actuating line couples the lopping mechanism to the pulley. A transfer line couples the pulley to a slide block and a stationary block is rigidly coupled to the handle member below the head. A tension line has a first end coupled to the slide block and is configured to movably engage the stationary and slide blocks.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: March 4, 2003
    Assignee: Aquapore Moisture Systems
    Inventor: Michael J. Cech
  • Publication number: 20020162227
    Abstract: A low profile tree pruning tool is provided having a head assembly coupled to an upper region of an elongated handle member and a pulley coupled to the head where the pulley is configured to rotate about a fixed axis. A lopping mechanism is coupled to the head and an actuating line couples the lopping mechanism to the pulley. A transfer line couples the pulley to a slide block and a stationary block is rigidly coupled to the handle member below the head. A tension line has a first end coupled to the slide block and is configured to movably engage the stationary and slide blocks.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 7, 2002
    Applicant: Aquapore Moisture Systems
    Inventor: Michael J. Cech
  • Patent number: 6446343
    Abstract: A tree pruner comprises a support rod, a base mounted on one end of the support rod, a fixed jaw fastened with the base, and a movable jaw pivoted with the fixed jaw. The fixed jaw is provided with an arresting projection. The movable jaw is provided with a first stop ridge and a second stop ridge which is separated from the first stop ridge by a distance. The movement of the movable jaw is confined by the first stop ridge and the second stop ridge in conjunction with the arresting projection of the fixed jaw.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: September 10, 2002
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang