With Blade-moving Means Patents (Class 30/245)
  • Patent number: 10368888
    Abstract: A surgical instrument includes a first lever element and a second lever element interconnected by a lever element hinge. Each lever element includes a grip portion and a jaw portion. A first spring portion and a second spring portion are proximally connected to the grip portions. A proximal free end of the first spring portion is coupled to a proximal free end of the second spring portion by a hinged joint. The hinged joint includes a hinge pin and at least one bearing eye. The at least one bearing eye forms a continuous longitudinal slit for radial insertion of the hinge pin. The slit extends diagonally relative to the axis of the at least one bearing eye so that at least one spring portion has to be twisted during radial insertion of the hinge pin into the at least one bearing eye.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: August 6, 2019
    Assignee: Aesculap AG
    Inventors: Stefan Storz, Tom Schweitzer
  • Patent number: 9888934
    Abstract: A surgical handheld instrument for grasping an object includes two lever elements, each lever element having a grip portion and a jaw portion. A lever joint connects the two lever elements rotatably to each other between their grip portion and their branch portion. Each of the two grip portions is adjoined by a respective spring portion for connecting the two grip portions such that the two lever elements are held resiliently in an open position. To create an easily manageable, elegant and releasable connection for spring ends on surgical instruments, the handheld instrument includes a hinge pin at a free end of one spring portion and a bearing eye at a free end of the other spring portion. The bearing eye has a longitudinal slit for radial insertion of the hinge pin into the bearing eye.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: February 13, 2018
    Assignee: Aesculap AG
    Inventors: Stefan Storz, Tom Schweitzer
  • Patent number: 8726523
    Abstract: A labor-saving horticultural scissors has a first blade and a second blade. Both blades are respectively disposed with a cutting section and a transmission section. Both blades are mutually pivoted to pivotally rotate to perform cutting motion, wherein a rotatable component leans against the transmission section of at least one of the blades. When both blades mutually pivot, the rotatable component rolls and displaces along the transmission section.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: May 20, 2014
    Assignee: Green Guard Industry Ltd.
    Inventor: Kuang-Pin Wang
  • Patent number: 8661691
    Abstract: Garden shears includes two corresponding cutting members, two opposing applying arms and two assembling members. Each cutting member has a main pivot aperture at a middle section thereof, a blade portion above the main pivot aperture, a pushing arc and a sliding arc continuously disposed below the main pivot aperture and a protrusion disposed between the pushing arc and the sliding arc, and an adjustable slot at a lower section. Each applying arm has a driving pivot aperture at a middle section, an eccentric pivot aperture at a top section, a rotation portion corresponding to the sliding arc formed at a top edge, a pushing edge formed at a side of the rotation portion, an indentation formed between the rotation portion and the pushing edge, and a handle at a lower section; wherein the assembling member is a flat member and has at least one securing aperture.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: March 4, 2014
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20140007434
    Abstract: A tool head using a scissor style pair of jaws is described. The jaws may be provided with cutting, pressing, crimping, or other functional surfaces. The tool head includes a linearly positionable member which is engaged with the jaws. Upon linear displacement of the member, the jaws are pivotally displaced.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Applicant: EMERSON ELECTRIC CO.
    Inventor: Todd Westley
  • Patent number: 8522444
    Abstract: 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: Grant
    Filed: January 4, 2011
    Date of Patent: September 3, 2013
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Publication number: 20120311872
    Abstract: A labor-saving horticultural scissors has a first blade and a second blade. Both blades are respectively disposed with a cutting section and a transmission section. Both blades are mutually pivoted to pivotally rotate to perform cutting motion, wherein a rotatable component leans against the transmission section of at least one of the blades. When both blades mutually pivot, the rotatable component rolls and displaces along the transmission section.
    Type: Application
    Filed: January 6, 2012
    Publication date: December 13, 2012
    Inventor: Kuang-Pin WANG
  • Patent number: 8327549
    Abstract: A garden shears has a main cutting member, a minor cutting member, two applying arms, and two assembling members. The major and minor cutting members both have a first pivot aperture and an extended section. An end of each extended section is bent up to form an L-shaped pawl forming a first indentation; an arced limiting slot is adjacent to each first pivot, and a tool end is respectively formed at an opposite end of the major and minor cutting members. Each applying arm has a handle and an assembling portion, each assembling portion having a second pivot aperture and a second indentation. A top edge of each second indentation has driving teeth that respectively engage with the L-shaped pawls of the major and minor cutting members. Each assembling member has a third pivot aperture and two fourth pivot apertures corresponding to the first pivot apertures and the second pivot apertures.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: December 11, 2012
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 8250765
    Abstract: 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: Grant
    Filed: July 21, 2009
    Date of Patent: August 28, 2012
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Patent number: 8225513
    Abstract: A pair of gardening shears include a main cutter, a secondary cutter pivotally connected with the main cutter, a force arm pivotally connected with the main cutter and engaged with the secondary cutter to drive the secondary cutter to pivot relative to the main cutter, and a connecting plate mounted on the secondary cutter and the force arm. Thus, the secondary cutter and the force arm are sandwiched between the main cutter and the connecting plate so that the secondary cutter and the force arm are moved smoothly and stably by limit of the main cutter and the connecting plate so as to facilitate the user performing the pruning action.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: July 24, 2012
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 8220163
    Abstract: 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: Grant
    Filed: May 20, 2008
    Date of Patent: July 17, 2012
    Assignee: Fiskars Brands Finlay Oy AB
    Inventors: Olavi Lindén, Markus Paloheimo
  • Patent number: 8166659
    Abstract: A garden shears has a first shear, a second shear, a separator, an engaging member and two joined pressing arms. A cutting portion of the first shear is offset from the handle portion, and central portion has a centrally positioned first pivot hole and a first eccentric pivot hole. A central portion of the second shear has a second pivot hole. A side of the second shear has a strip-shaped extending portion with an end bent towards the other side of the second shear and having an engaging gear rack, which defines an escape region. An arcuate limiting guide groove is disposed between the second pivot hole above the escape region. The engaging member has an arcuate engaging tip edge with a protrusion. The pressing arms are bi-leveled with a beveled connection and have a handle at a lower portion and a second eccentric pivot hole at an upper portion.
    Type: Grant
    Filed: November 29, 2009
    Date of Patent: May 1, 2012
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 8069573
    Abstract: 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: Grant
    Filed: July 21, 2009
    Date of Patent: December 6, 2011
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Patent number: 8046925
    Abstract: 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: Grant
    Filed: May 26, 2009
    Date of Patent: November 1, 2011
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Patent number: 8033025
    Abstract: The invention concerns a shearing or gripping tool which comprises a body with a proximal end and a distal end and defining an internal chamber for a drive piston for actuating the shearing or gripping tool which move between an idle and active position in answer to the movements of the piston between the retracted and forward positions. Sensitive elements to detect at least the forward position of the piston in its respective chamber and in the same way the active position of the shearing or gripping tools in order to signal the effective fulfilment of their action, are associated with the proximal part of the body.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: October 11, 2011
    Assignee: GIMATIC S.p.A.
    Inventor: Giuseppe Maffeis
  • Patent number: 7987603
    Abstract: 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: Grant
    Filed: March 26, 2010
    Date of Patent: August 2, 2011
    Assignee: Archman Di Pittau Giovanni & C.S.N.C
    Inventor: Giovanni Pittau
  • Patent number: 7971360
    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: Grant
    Filed: May 2, 2008
    Date of Patent: July 5, 2011
    Assignee: Kett Tool Company
    Inventors: Mark Clark, Alexander Rozumovich
  • Patent number: 7926186
    Abstract: 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: Grant
    Filed: October 28, 2005
    Date of Patent: April 19, 2011
    Inventors: John E. McLoughlin, Neocles G. Athanasiades, Toh M. Meng
  • Publication number: 20100192385
    Abstract: 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: Application
    Filed: March 26, 2010
    Publication date: August 5, 2010
    Inventor: Giovanni Pittau
  • Publication number: 20100162575
    Abstract: A pair of gardening shears include two handles each having two teeth portions, and two cutting blades pivotally connected to each other and each having a teeth portion. The teeth portions of one of the handles are respectively engaged with one of the teeth portions of the other one of the handles and the teeth portion of one of the cutting blades. Accordingly, the gardening shears of the present invention can be used to cut branches that have a large cross-sectional area by means of the engaged teeth.
    Type: Application
    Filed: March 24, 2009
    Publication date: July 1, 2010
    Inventor: Thomas Lin
  • Patent number: 7681318
    Abstract: A power-saving scissors comprises a first handle having a first knife set; the first handle being formed with a receiving space; an inner wall of the receiving space being formed with teeth; a second handle pivotally installed to the first handle by a planet gear set; the second handle having a second knife set; a center gear being protruded from the second handle at a position corresponding to the receiving space; the center gear being engagable with the receiving space of the first handle; the planet gear set including the center gear, three peripheral gears and a cover; one end of the center gear being installed to the second handle and another end thereof being protruded with a post; the three peripheral gear being respectively engaged to the center gear and also engaged to the teeth of the receiving space.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 23, 2010
    Inventor: Chih-Ching Hsieh
  • 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: 20090145274
    Abstract: A demolition tool is provided. The demolition tool has a first jaw, a second jaw, a linkage assembly, and an actuator. The second jaw is pivotally coupled to the first jaw and the linkage assembly is coupled to the first and the second jaws. The actuator is coupled to the linkage assembly and the first jaw and has an extension stroke. The linkage assembly first closes and then opens the second jaw with respect to the first jaw over the extension stroke.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 11, 2009
    Applicant: Caterpillar Inc.
    Inventors: Daniel L. Mikrut, Blake J. Markovits, Gary Markovits
  • Patent number: 7540093
    Abstract: A pair of gardening shears include a handle, a drive member, a control lever, a transmission device, and two cutting blades. The transmission device includes a housing, a pivot plate, a catch plate, a link, a catch flange, a restoring member. Thus, the restoring member is biased between the catch flange and the catch plate, so that the restoring member is not subjected to a pulling force to prevent the restoring member from being worn out by a pulling force during a long-term utilization. In addition, when the pivot head of the handle is rotatable relative to the housing, the stop post of the pivot head is movable to rest on the pivot plate to prevent the pivot plate from directly rubbing the inner wall of the pivot head.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: June 2, 2009
    Assignee: Chung Cheng Scissors Co.
    Inventor: Chun-Chiao Yeh
  • Patent number: 7530172
    Abstract: A pair of long-arm gardening shears include a hollow mounting seat, an extension tube, a cutting tool, a link, a toothed rack, two spaced driven gears, and two elongated handles. Each of the elongated handles is provided with a toothed drive portion meshing with a respective driven gear to rotate the respective driven gear. Thus, the cutting tool is driven by a leverage action of the handles and by a gearing action of the toothed drive portions of the handles, the driven gears and the toothed rack, so that the long-arm gardening shears can perform a cutting action in a labor-saving manner, thereby greatly saving the user's energy.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: May 12, 2009
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Patent number: 7331109
    Abstract: An electric cutting device includes a housing, a motor, an activation button, a first assembly, a second assembly, two connecting rods, two connecting rods and a cutting assembly. The activation button may be used to activate the motor. The motor is connected with a speed reduction gear set, and a transmission gear is connected with the output shaft of the speed reduction gear set. The transmission gear is engaged with a driving gear. A threaded rod is fixedly connected with the driving gear. The two supporting rods are pivotally connected with the first assembly. The rear end of either connecting rod is connected with the front end of the corresponding supporting rod. In use, the motor may cause the threaded rod to rotate and then activate the cutting operation of the cutting assembly.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: February 19, 2008
    Inventor: Shu-Woan Tu
  • Patent number: 7275323
    Abstract: A long-handled shears with a detachable connecting device has an operational grip stick with an elongated tube and a wire, a grass shears, and a connecting device attached between the grip stick and the grass shears. The ball is attached to the wire of the grip stick. The base is mounted on the elongated tube, allows the wire to extend through the base and engages the grass shears by a clamp. The engaging block is movably mounted inside a grip of the grass shears and has a ball recess. When the grip of the grass shears is compressed, the engaging block moves aside to reveal the ball recess to allow the ball to enter the ball recess. Then, the handle is released to lock the ball inside the ball recess. By engaging the ball and the engaging block, the grass shears detachably attaches to the grip stick conveniently.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: October 2, 2007
    Inventor: Chung-Cheng Yang
  • Patent number: 6938346
    Abstract: A pair of scissors has a fixed handle, a fixed jaw extending from one end of the fixed handle, a movable jaw pivotable with respect to the fixed jaw, a movable handle pivoted with the fixed jaw along with the movable jaw by a common pivot, and a gear transmission mechanism. The gear transmission mechanism has a rack located at one end of the movable jaw, a drive gear rotatably mounted on the fixed jaw and engaged with the rack, and two driven gears rotatably mounted on the fixed jaw and engaged with the drive gear and the toothed edge of the movable jaw. The two driven gears are driven by the drive gear to cause the movable jaw to move toward or away from the fixed jaw.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: September 6, 2005
    Assignee: Hong Chuan Hsian Industries Co., Ltd.
    Inventor: Chin-Chi Huang
  • Patent number: 6829829
    Abstract: A gardening pruner comprises two handles, two blades, two pivoting plates, and two actuating plates. The actuating plates are fastened at a bottom end with the handles and are provided at a top end with a toothed portion. The two actuating plates are pivoted together with the two pivoting plates by a pivot. The two blades are provided at a bottom end with a toothed portion and are pivoted together with the two pivoting plates by another pivot such that the toothed portions of the two blades are respectively engaged with the toothed portions of the two actuating plates, thereby resulting in a gear-type transmission of force from the handles to the blades.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: December 14, 2004
    Inventor: Yao-Chung Huang
  • Patent number: 6789324
    Abstract: A hedge having two opposing cutting blades connected to handles. Both of the cutting blades and both of the handles have gear elements formed as part of the blade or handle. The gear element of one handle engages the gear element of one of the cutting blades, while the gear element of the other handle engages the gear element of the other cutting blade so that a variable force is provided throughout the cutting stroke.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: September 14, 2004
    Assignee: Fiskars Consumer Oy OB
    Inventors: Olavi Lindèn, Markus Paloheimo
  • Patent number: 6751866
    Abstract: A cuticle cutting instrument has tubes rotatably disposed in each other and forming two working endings, cutting elements provided on the endings, handles fixed on the tubes, a return spring installed between the handles, and a tubing connection for communicating with a vacuum source.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: June 22, 2004
    Inventors: Salman Yusufov, Nazim Yusufov
  • 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: 20040035004
    Abstract: The invention relates to a pliers-type tool and to a method for cutting through optical fibre cables (OF). According to the invention, the OF cable is received between the jaws of the pliers precisely, in a specific position, and is securely and precisely held and supported there. The invention uses a novel round blade (14) which is accommodated in a separately operated cutting device (23). A switching mechanism (26, 28, 31, 32) is allocated to the cutting device for measuring the duration of use of the cutting blade.
    Type: Application
    Filed: May 16, 2003
    Publication date: February 26, 2004
    Inventors: Edgar Wilhelm, Georg Holland-Moritz, Tomas Bernd
  • 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: 20030140501
    Abstract: A hedge having two opposing cutting blades connected to handles. Both of the cutting blades and both of the handles have gear elements formed as part of the blade or handle. The gear element of one handle engages the gear element of one of the cutting blades, while the gear element of the other handle engages the gear element of the other cutting blade so that a variable force is provided throughout the cutting stroke.
    Type: Application
    Filed: May 4, 2001
    Publication date: July 31, 2003
    Inventors: Olavi Linden, Markus Paloheimo
  • Publication number: 20030126747
    Abstract: A somewhat broad grip has been attached by a screw at the outer edge Of each of the 2 blades that comprise the scissors. A free-standing scissor has been invented in which the grips have been given a shape that make them easy to grasp by hand, and on the grips' outer surfaces, support in sections to enable free-standing have been provided such that they are nearly perpendicular to the plane of the blades. Further, the 2 blades are attached by a shaft, and at the rear of the shaft, a spring has been attached inside the grips, assisting in the opening of the blade tips, and keeping the blades always able to cut materials such as paper. Therefore, with the invention placed on a desk or other flat surface, if the front of the top grip is pressed from above, the blade tips close, enabling cutting of materials such as paper, and when the user's hand is released, the blade tips open again, enabling use even by persons with little fingertip strength.
    Type: Application
    Filed: June 10, 2002
    Publication date: July 10, 2003
    Inventor: Jun Kusaba
  • 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
  • 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
  • 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
  • Patent number: 6385852
    Abstract: A tree pruner includes a fixation seat, a cutter, a link rod, and an auxiliary rod member which is formed of a support rod and an expandable push rod. The support rod is pivoted at one end with the link rod, and at the other end with a locating hole of the cutter. The expandable push rod is pivoted at one end with the link rod, and at the other end with the support rod. The auxiliary rod member serves as an auxiliary application arm between the link rod and the cutter, so as to improve the operational efficiency of the tree pruner.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: May 14, 2002
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Patent number: 6345445
    Abstract: A tool for performing lopping, pruning and similar operations includes a tool support, a tool head, an actuating line and an actuating handle. The tool support preferably includes a pair of telescoping tubes and the tool head includes a blade movable to perform cutting operations. The blade is coupled to the actuating line and remotely movable by tensioning the actuating line. The actuating line passes through a portion of the tool support to the actuating handle. The actuating handle includes a line engagement mechanism or clutch assembly that engages and holds the line when the actuating handle is slid on the tool support. The tool is actuated by a first movement of the actuating handle that causes the engagement mechanism to engage the actuating line, followed by a second movement that tensions the line to move the blade. A reel mechanism below the engagement mechanism collects the actuating line when the tool support is retracted and dispenses line when the tool support is extended.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: February 12, 2002
    Assignee: Alterra Holdings Corporation
    Inventor: Robert T. Schofield
  • Patent number: 6178644
    Abstract: A pruner assembly having hollow shaft with a longitudinal axis, a lower end, and open upper end, and a handgrip portion slidable along the longitudinal axis between a first and a second position. A shearing mechanism attaches to said open upper end of the hollow shaft, which mechanism includes a body having a hook adapted to receive and hold a limb, a cutting blade pivots on the body and against the hook to cut the limb. An arm member pivots to the body and couples to the blade so that pivotal movement of the arm member pivotally moves the cutting blade. A pulley is mounted to the arm member distal end and a cable guide pulley is coupled to the hollow shaft adjacent the open upper end for guiding a cable into and out of the open upper end without the cable contacting the walls thereof. A cable is provided for moving the cutting blade with respect to the hook.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: January 30, 2001
    Inventors: Thong Huu Le, Timothy Van Le
  • Patent number: 6038773
    Abstract: A portable pruner for cutting limbs comprising a hollow handle assembly having a longitudinal axis, a lower end and an open upper end. The slidable grip portion is slidable along the longitudinal axis between a first and a second position. The cable runs through the hollow handle assembly to the outer engagement with the shearing mechanism. A shearing mechanism is attached to the upper open end of the hollow handle and includes a body having a hook adapted to receive and hold a limb. A cutting blade is pivotally attached to the body and selectively pivots against the hook to cut the selected limb. The pruner includes means for pivoting the cutting blade with respect to the hook wherein the pivoting means is responsive to movement of the sliding portion between the first and second positions. In one embodiment, the overall pruner length is adjustable with two clamped telescoping handle assembly segments and a mechanism for adjusting the operative cable length to accommodate the length variation of the pruner.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 21, 2000
    Assignee: Thong H. Le
    Inventors: Thong Huu Le, Timothy Van Le
  • Patent number: 5933965
    Abstract: A tool for performing lopping, pruning and similar operations includes a housing assembly formed of a pair of telescoping tubular sections. The tool also includes a tool head, a head line and an actuating line. The tool head, which is connected to one end of a tubular section, preferably includes a spring-biased blade coupled to the head line which is connected to a slidable block. The actuating line, while engaging the slidable block so that tensioning the actuating line causes movement of the blade, is also slidable relative to the block upon relative movement of the tubular sections.
    Type: Grant
    Filed: July 12, 1997
    Date of Patent: August 10, 1999
    Assignee: Fiskars Inc.
    Inventors: Erkki Olavi Linden, Vern Mittlesteadt, Angelo M. Marasco, Mark D. Schaefer, Brian W. Hubbard
  • Patent number: 5745998
    Abstract: A portable pruner for cutting limbs comprising a hollow shaft having an longitudinal axis, a lower end and an open upper end. The slideable grip portion is slideable along the longitudinal axis between a first and a second position. A shearing mechanism is attached to the upper open end of the hollow handle and includes a body having a hook adapted to receive and hold a limb. A cutting blade is pivotally attached to the body and selectively pivots against the hook to cut the selected limb. The cutting blade pivots with respect to the hook and is responsive to movement of the slidable grip portion between the first and second positions.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: May 5, 1998
    Inventors: Thong Huu Le, Timothy Van Le
  • Patent number: 5715604
    Abstract: A force-developing device for forceps of the type equipped with two jaw elements (2, 3) and with two handles (4, 5) includes a jaw (6A). A link rods system (6B) is articulated with the jaw (6A). A front end of a piston (7) is connected to the link rods system (6B). The piston is housed slidingly inside a first handle (4). A yoke (8) is provided for holding the second handle (5) relative to the first handle (4). A pair of complementary racks (9) mechanically drive the piston (7), the pair being borne by each of the two handles (4, 5). A trigger catch and a rack for preventing the return of the piston are borne by the first handle (4). The pair of complementary racks (9) for driving the piston (7), the trigger catch, and the rack acts alternately on the piston so that by successively moving the second handle (5) towards and away from the first handle (4), the piston (7) is moved forwards and the jaw (6A) is deformed by means of the link rods system (6B).
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: February 10, 1998
    Assignee: EIS Instruments
    Inventor: Maurice Lanzoni
  • Patent number: 5377411
    Abstract: A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head. A manually operated or finger depressible member is pivotally mounted on the handle in a manner that the same hand of the user which holds or grips the handle can also operate the finger depressible member which permits the other hand of the user to be free for other purposes.A motion transmitting mechanism is located in the housing of the appliance and interconnects the finger depressible member with the cutting scissor blades. The finger depressible member is connected to a slidable plate in the housing which is provided with structure to actuate the haircutters for severing hair entering the housing. Hair spacers are carried by the housing to selectively determine the length of hair to be cut.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: January 3, 1995
    Inventor: Demetrios Andriotis
  • Patent number: 5367773
    Abstract: A pruning device is provided which includes an elongate support member having distal and proximal ends. A cutting mechanism is pivotably mounted on the distal end of the support member and includes a cutting member. An actuating mechanism including a motor and a drive member is provided for actuating the cutting member. The device further includes structure for mounting the actuating mechanism on the support member near the proximal end thereof and structure for coupling the drive member to the cutting member whereby rotational movement of the actuating mechanism pivots the cutting member from an inoperative position to an operative position.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: November 29, 1994
    Inventor: Everette P. Robbins
  • Patent number: 5331742
    Abstract: The invention relates to end cutters, in particular for cutting through cables, having two flat loose blades which are located one on top of the other, and rotatable about a common rotation shaft and can be driven by means of a drive device. Each loose blade is in this case acted on by a suitable cam disc which is located in the plane of the blade and is coupled to the drive device. A desired force response while cutting up material in the form of ropes can be achieved in a simple manner by selection of the radii of the cam discs.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: July 26, 1994
    Assignee: Weidmuller Interface GmbH & Co.
    Inventors: Hartmut Schmode, Gerd Weber, Ulrich Wiebe
  • Patent number: 5324558
    Abstract: Provided is a laminated tube having a logarithmic decrement of at least 0.08 and a flexural modulus of at least 1,000 kg/mm.sup.2 and comprising at least 2 layers which comprise a composite material comprising a reinforcing fiber and a matrix resin. The reinforcing fibers used include an organic fiber, e.g. wholly aromatic polyester fibers and polyvinyl alcohol fiber, for at least 1 layer of the composite material layer and an inorganic fiber, e.g. carbon fiber and glass fiber, for at least 1 layer of the composite material layer.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: June 28, 1994
    Assignee: Kuraray Co., Ltd.
    Inventors: Akira Muto, Hajime Horiuchi