Spring Opened Or Closed Patents (Class 30/261)
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Patent number: 11858150Abstract: A nipper, components thereof, and associated methods. The nipper includes first and second jaws, and first and second levers connected to respective ones of the jaws. The jaws are pivotable about a pivot axis to move cutting edges of the jaws toward and away from each other. The jaws and levers have a keyed connection for conjoint pivoting of the respective jaws and levers about the pivot axis. A retainer is configured to retain the cutting edges in a closed arrangement. The nipper includes a poker for cleaning paint from an eyelet of a lure or fishing hook. The poker is movable between stowed and deployed positions with respect to a lever of the nipper.Type: GrantFiled: December 23, 2020Date of Patent: January 2, 2024Assignee: AOB Products CompanyInventors: Dennis W. Cauley, Jr., James Tayon, Anthony Vesich, Matthew Kinamore, Curtis Smith, Josh Neville, Mark Dalton
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Patent number: 11731246Abstract: A pliers includes a first body with an engaging groove and a second body with an elongated slot pivotally connected with each other. The elongated slot includes a left and right positioning grooves and a protruding portion disposed therebetween. A tap button is pivotally connected to the second body. A supporting member is disposed between the second body and the tap button. When the first body comes close to the second body, the tap button can be tapped to a first position and engaged in the engaging groove. Thus, the first body is blocked and cannot pivot relative to the second body. The tap button can be tapped to a second position and detached from the engaging groove. Thus, the first body is pivotable relative to the second body. A positioning block is extending from the tap button and can be engaged in any of the positioning grooves for positioning the tap button.Type: GrantFiled: September 24, 2021Date of Patent: August 22, 2023Inventor: Jin Fu Chen
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Patent number: 11660098Abstract: A hand tool has a pivot connection pivotally attaching a first arm to a second arm, with the pivot connection fixed relative to the first arm and movable to first and second positions relative to the second arm. A spring urges the pivot connection into the first position. When jaws on the front ends of the arms clamp tissue with force greater than a pre-set threshold, the spring force is overcome and the jaws may move linearly apart, allowing for more uniform clamping of the tissue. The first arm may have an arm spring extending between a front segment pivotally attached to a rear segment of the first arm.Type: GrantFiled: September 25, 2020Date of Patent: May 30, 2023Assignee: City of HopeInventor: Gagandeep Singh
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Patent number: 10611040Abstract: A shearing tool includes a first and second shearing portion and a retaining mechanism. The first and second shearing portions are pivotally engaged with each other. The first and second shearing portions are movable relative to each other between a first relative position and a second relative position. The retaining mechanism includes a first retaining portion and a second retaining portion selectively engagable with each other to retain the first and second shearing portions in the second relative position. The first retaining portion is formed on a first retaining member which is pivotally engaged with the first shearing portions. The second retaining portion is formed on a second retaining member which is connected to the second shearing portion.Type: GrantFiled: July 18, 2018Date of Patent: April 7, 2020Assignee: Allprofessional Mfg. Co., Ltd.Inventor: Chung-Ping Huang
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Patent number: 10259130Abstract: A hand-operated tool lock mechanism secures a pair of grips in a closed locked state. The mechanism includes: a holding recess at the end of one grip; an engaging recess at the end of the other grip; a ring component removably and rotatably disposed in the holding recess, which engages with the engaging recess placing the grips in the closed state; and a catch for removably and rotatably inserting the ring component in the holding recess. The holding recess and the catch hold the ring component oriented away from the other grip when the ring component is disengaged from the engaging recess. When the hand-operated tool is used, the releasing of the ring component from the locked state causes the ring component to be held between the holding recess and the catch in an orientation in which the ring component does not contact the other grip.Type: GrantFiled: July 21, 2017Date of Patent: April 16, 2019Inventors: Yoshikazu Wada, Lawrence Y Igarashi
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Patent number: 10099361Abstract: A combination gripping and cutting tool for cutting pipe and gripping can lids includes a pair of handles that are rigid. Each handle comprises a grasp that is arcuate. The handles are pivotally coupled, such that the grasps are opposing. A support, which is arcuate, extends transversely from a respective grasp. A channel is positioned in the support. A blade that extends transversely from a respective grasp is complementary to and positioned through the channel. Each of a pair of cutouts is positioned in a respective grasp. The cutouts are arcuate and opposing. Each of a pair of grips is coupled to a respective cutout. The grips are configured to engage a lid of a can when the grasps are pivoted inwardly. The handles are positionable with the support separated from the blade, such that a pipe is positionable between the blade and the support for cutting.Type: GrantFiled: January 11, 2016Date of Patent: October 16, 2018Inventor: Bobby Locke
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Patent number: 9867631Abstract: Surgical forceps for gripping internal organs during minimally invasive surgery are provided. The surgical forceps can be a sanitizable sheet in a folded configuration that includes a first elongate region which transitions to a resilient hinge which transitions to a second elongate region, all of which are formed of the same sheet. The first elongate region can further include a first grasper end opposite the resilient hinge and the second elongate region can include a second grasper end opposite the resilient hinge. The resilient hinge can apply a spring force to the first elongate region and the second elongate region that biases the forceps in an open configuration where the first grasper end and the second grasper end are distal from each other. When an external force is applied against the resilient hinge, the first grasper end can close against the second grasper end.Type: GrantFiled: August 20, 2014Date of Patent: January 16, 2018Assignee: Brigham Young UniversityInventors: Bryce Edmondson, Clayton Grames, Landen Bowen, Eric Call, Terri Bateman, Spencer Magleby, Larry Howell
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Patent number: 9718199Abstract: In opening and closing scissors, separation between both blades caused by inclination of one blade body relative to the other blade body is prevented or reduced. Specifically, with a head being in contact with a movable blade, a coil spring comes into contact with a head at one end and with the bottom of a counterbore at the other end. This pressing force allows a stationary blade to tightly abut on the movable blade. A taper face is formed at the stationary blade side of the head to press and expand the one end of the coil spring radially outside a pivot.Type: GrantFiled: December 22, 2014Date of Patent: August 1, 2017Assignee: YAGYU CO., LTD.Inventor: Matsuo Yagyu
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Patent number: 9701031Abstract: A shears comprising a first lever and a second lever, each lever having a blade end and a handle end, wherein the first lever is s-shaped such that the upper handle is at a higher elevation than the first lever blade end, the upper handle front portion projecting upwardly above the upper handle medial portion for engagement with the web between the thumb and forefinger of a user's hand to limit forward movement of the hand along the upper handle but not projecting upwardly above the upper handle rear portion, the lower handle having a lower surface formed of a high-friction material that is downwardly convex and shaped and dimensioned to conform to the curled fingers of a user's hand, the shears further comprising a ripping blade detachably mountable to the first lever blade end, the shears further comprising handle stop with a spring for biasing the shears in the open position.Type: GrantFiled: January 5, 2016Date of Patent: July 11, 2017Inventor: Michael Anthony Martinez
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Patent number: 9346150Abstract: A hand-held duct closure tool 10 has teeth 24, 30 extending outwardly from the distal ends of two pivotably engaged arms 18, 20. The teeth penetrate into insulation material of abutting sections of insulated ducts or ductwork. When the user releases the tool, the teeth from each distal end remain engaged with the insulation material and are urged toward one another to hold the insulated duct sections in abutting relation.Type: GrantFiled: September 30, 2013Date of Patent: May 24, 2016Assignee: PTM Manufacturing, LLCInventors: Louis Peter Faverio, IV, Jerry Lee Arms
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Patent number: 9221184Abstract: Various scissor embodiments feature channel voids or passages defined within the inside surfaces of scissor blades or shaft sections. The channel voids or passages allow foreign matter to be self-expelled by the movement of the scissor blades. Disclosed blades or shafts are pivotally connected by a new connection assembly that expels foreign matter during the normal use of the scissors. Disclosed embodiments include scissors comprising: a pair of blades (1A, 1B) overlapping each other; and a shaft (3) inserted through a shaft support hole (2) in the blades (1A, 1B) and having a tip (4) that is bucked to allow the blades (1A, 1B) to pivot in an abutting state, a passage communicating with the outside to allow inflow and outflow of water, etc. is formed between abutting faces (5) of both blades (1A, 1B) and between the shaft (3) and the shaft support holes (2).Type: GrantFiled: August 14, 2015Date of Patent: December 29, 2015Assignee: CHIKAMASA CO., LTD.Inventors: Yoshikazu Wada, Lawrence Y Igarashi
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Publication number: 20150101198Abstract: In opening and closing scissors, separation between both blades caused by inclination of one blade body relative to the other blade body is prevented or reduced. Specifically, with a head being in contact with a movable blade, a coil spring comes into contact with a head at one end and with the bottom of a counterbore at the other end. This pressing force allows a stationary blade to tightly abut on the movable blade. A taper face is formed at the stationary blade side of the head to press and expand the one end of the coil spring radially outside a pivot.Type: ApplicationFiled: December 22, 2014Publication date: April 16, 2015Applicant: YAGYU CO., LTD.Inventor: Matsuo YAGYU
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Patent number: 9003667Abstract: A pair of garden scissors with an adjustable cutting angle is provided with first and second scissor members. A positioning protrusion of the first scissor member cooperates with a positioning end of the angle-restricting member of the second scissor member to restrict the maximum cutting angle of the first scissor member, and an adjust member is able to adjust the cutting angle by adjusting the position of the angle-restricting member, so that the cutting angle can be freely adjusted within the movement range of the angle-restricting member.Type: GrantFiled: January 18, 2013Date of Patent: April 14, 2015Assignee: Ho Cheng Garden Tools Co., Ltd.Inventor: Yao-Chung Huang
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Publication number: 20140338201Abstract: Clipper for lemons and other fruits. The clipper can have a pair of operating arms, a pivot assembly for the operating arms, a lower central open-position abutment mechanism, hand grips with adjustable and alternative left and right-hand strap mounting, and an out-of-the-way abutment arrangement to define a clipper open position. The pivot assembly can include a dust-free rotation structure and an out-of-the-way torsion spring. Gripping handles for clippers and the like are also disclosed.Type: ApplicationFiled: July 30, 2014Publication date: November 20, 2014Inventor: RICARDO ROMERO
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Patent number: 8793883Abstract: Clipper for lemons and other fruits. The clipper can have a pair of operating arms, a pivot assembly for the operating arms, a lower central open-position abutment mechanism, hand grips with adjustable and alternative left and right-hand strap mounting, and an out-of-the-way abutment arrangement to define a clipper open position. The pivot assembly can include a dust-free rotation structure and an out-of-the-way torsion spring. Gripping handles for clippers and the like are also disclosed.Type: GrantFiled: March 15, 2013Date of Patent: August 5, 2014Assignee: Galliot, LLCInventor: Ricardo Romero
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Patent number: 8732960Abstract: An improved floral scissors assembly includes a clamping jaw extended from a top end of a first handle, a blade, a second handle pivotally coupled to the bottom of the clamping jaw, a long hole formed on the blade, plural stop protrusions formed in the long hole, and a link rod installed between the second handle and the blade. The link rod has an end extended into the long hole by a stop pin and the other end coupled to a switching mechanism including a slice member and a stop portion. The stop portion is situated at an upper or lower fixed position. An active end of the link rod is switchably limited by the stop portion at the upper or lower fixed position, and the stop pin is moved in an opposite direction of the active end and between the upper and lower ends in the long hole.Type: GrantFiled: January 12, 2012Date of Patent: May 27, 2014Assignee: Green Guard Industry Ltd.Inventor: Kuang-Pin Wang
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Patent number: 8701294Abstract: A cutting implement with blades that can be replaced or interchanged without using tools. The cutting implement has shock absorbing handles and may also have at least one bumper to reduce the forces transmitted to the user's hands and arms. The cutting implement may be a saw, pruners, lopper, grass shears, hedge shears, or garden shears.Type: GrantFiled: September 13, 2009Date of Patent: April 22, 2014Assignee: Acme United CorporationInventors: Ryan Bruce, Richard Constantine, Yani Deros, Matthew Ibarra, Man For Ma
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Patent number: 8661690Abstract: The invention relates to scissors and a sharpening device. The scissors include two blades, each blade having a cutting edge and a back edge which respectively form opposite longitudinal edges of the blade. A pivot connects the two blades for relative movement of the blades between an open condition in which the cutting edge of each blade are apart and a closed condition in which each blade are substantially adjacent and the back edge of each blade projects beyond the cutting edge of the other blade. The blades also include a sharpening condition in which the cutting edge of each of the blades can be sharpened. A biasing means is included for biasing the blades away from the sharpening condition towards the closed condition and/or the open condition. The sharpening device is for scissors including two blades having a cutting edge.Type: GrantFiled: October 15, 2009Date of Patent: March 4, 2014Assignee: McPherson's LimitedInventors: Rosemary Murphy, Clive Solari
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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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Patent number: 8516707Abstract: An embodiment of the hand held implement is in the form of a pair of scissors (10), as shown for example in FIG. 1. The pair of scissors include a pair of blades (12, 13) which are pivotally mounted about pivot pin (11). The blades are fitted with plastic loop portions which form the handles (14, 15) of the scissors (10). Handle (15) includes a moveable portion in the form of gate (16) which is pivotally mounted about pin (18). Handle (14) is fitted with a latching arrangement in the form of a slidably moveable (latch 20) which cooperates with a T-shaped lug (24) (visible in FIGS. 2, 5a and 5b) to retain the handles together in a closed position, or to allow the handles to be separated.Type: GrantFiled: January 22, 2009Date of Patent: August 27, 2013Inventors: James Anthony Castley, Simon Gene Castley
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Publication number: 20120167398Abstract: Secateurs for picking fruit that have two arms assembled in a pivoting manner that move against each other around a pivoting axis and against the action of an elastic spring, each arm having a gripping area and a cutting area, and the cutting area of each one of the arms has a portion with an appreciably concave curved shape with a sharpened edge, so that in the situation of the maximum approach of one to the other of the two cutting areas, both appreciably concave curved portions form an open concave curved housing; and there being a difference in height of one sharpened edge against the other, in such a way that during the movement of both arms coming together in the cutting action, the sharpened edge of one of the arms is superimposed over the sharpened edge of the other arm.Type: ApplicationFiled: May 9, 2011Publication date: July 5, 2012Inventors: Jose Ramon MANZANA BOIX, Raul MANZANA BOIX
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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: 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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Publication number: 20120030951Abstract: Disclosed are shears are used for trimming bushes, trees, and brush. The loppers have the cutting blade which performs the cutting action and a counter edge for the cutting blade to work in conjunction. These loppers also have the addition of clamping jaws which will hold the severed limb. A user amputates a tree limb and the severed or orphaned limb falls helplessly to the ground, but these loppers clamp onto that limb when the cutting operation is performed. After the cut is made, the user can move the limb to a specific location, then decompresses the loppers and drop the limb as intended.Type: ApplicationFiled: July 26, 2011Publication date: February 9, 2012Inventors: Robert Seloff, Brian Scates, Joe Williams
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Patent number: 8109003Abstract: Pruning shears include a first arm including a first handle and a jaw including a first tab; a first blade including a cutting edge and an ear opposite the cutting edge and having a first through hole wherein the first arm and the first blade are secured together by inserting the first tab into the first through hole; a second arm including a second handle and a joining section; a second blade secured to the joining section; a pivot joint for pivotably securing the first arm to the second arm; and a torsion spring positioned between the first arm and the second arm. The torsion spring exerts an expansion force to push the first arm and the second arm apart from each other.Type: GrantFiled: October 26, 2009Date of Patent: February 7, 2012Assignee: Success & Tech Industrial Co., Ltd.Inventor: Mei-Chih Liu
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Patent number: 8079150Abstract: A pressing handle is connected to a moveable blade having a hook-shaped engaging slot near the outer edge of an aperture to which a gripping handle fixed blade is pivoted. A containment space is formed by the junction of the gripping handle and a side of the fixed blade. The containment space has an arc-shaped opening, and the fixed blade has a positional aperture at a position corresponding to the opening. An end of an engaging member has an axle aperture and another end forms an engaging end, with a concave region formed between the two ends. A positioning pin passes through the engaging member and a torsion spring and is attached to the positional aperture. A push button-shaped body has a tongue at its lower end, an edge of which extends as a stop, and the tongue and the stop are both slidably mounted in the containment space.Type: GrantFiled: July 30, 2009Date of Patent: December 20, 2011Assignee: Ho Cheng Garden Tools Co., Ltd.Inventor: Yao-Chung Huang
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Patent number: 8074361Abstract: A rose pruning and stripping device includes first and second jaws pivotally connected between handle and cutting portions thereof. An inner edge of the cutting portion of the first jaw sharpened into a cutting edge, and the opposite inner edge of the cutting portion of the second jaw defines a dull edge. A multi-faceted notch is formed in each cutting portion of the first and second jaws between the pivotal connection and the sharpened edge. A leaf and thorn stripping aperture is formed as the handles of the first and second jaws, and particularly the cutting portions thereof, are brought towards one another.Type: GrantFiled: August 28, 2006Date of Patent: December 13, 2011Inventors: Barbara E. Bohlman, Camille B. Carr
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Patent number: 7975577Abstract: The invention relates to a self-opening hand tool (1) with two tool halves (2, 3) that cross over each other at a joint (4), in particular in the form of a pair of pliers, scissors or the like, with one half of the tool (2, 3) forming a jaw (5) on one side of the joint (4) and a handle (6) on the other side of the joint (4), with a spring element (8) of elastically deformable rubber or plastic material also associated with a handle (6), which has an opening (9) through which the handle (6) passes, and that can be moved into at least one operating position at will by turning it from a non-operating position, in which operating position the spring element (8) contacts the opposite handle (6) depending on the spread angle of the handle (6) and the generation of the appropriate restoring force.Type: GrantFiled: April 16, 2007Date of Patent: July 12, 2011Assignee: Will Werkzeuge GmbH & Co. KGInventor: Stefan Pfab
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Publication number: 20110154669Abstract: Double strength pruners have two crossed pivoting blades, a main blade and an auxiliary blade, upper and lower handles correspondingly matching the two blades, a blade driving gear on the auxiliary blade, and upper and lower gears at the end of the upper and lower handles, respectively, the lower gear matching the blade driving gear. When swinging the upper handle and/or the lower handle, a first leverage effect is created from a first fulcrum, which is the contact point between the upper and lower gears, while a second leverage effect is created from a second fulcrum, which is the contact point between the lower gear and the blade driving gear. Such double levers and double strength effects can significantly reduce the force applied upon the handles, reducing the required labor. The upper gear, lower gear, upper handle and lower handle are detachable structures, easy for maintenance and replacement.Type: ApplicationFiled: December 10, 2010Publication date: June 30, 2011Inventors: Hongbin Liu, Jun Zhang, Maocai Huang
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Patent number: 7941928Abstract: A pair of scissors having a pair of looped handles has a clip such as a carabiner-style inwardly-opening gate mounted on the outer-most perimeter of one or both of the looped handles. Where the clip is a carabiner, the distal end of each gate, distal from the gates hinge, is oppositely disposed relative to the fulcrum of the pair of scissors. The non-gate portion of each of the looped handles containing a gate includes a hooked portion adjacent the distal end of each gate. The hooked portion includes a stop to limit movement of the gate. A resilient loop is mounted around the levers of the scissors between the handles and fulcrum so as to urge the scissors closed.Type: GrantFiled: July 6, 2009Date of Patent: May 17, 2011Inventor: John Anthony Fisher
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Patent number: 7886446Abstract: A pair of pipe cutting pincers includes a pincers body having a first handle and a second handle pivotally assembled together. The first handle has its front end pivotally combined with a pipe-cutting member disposed with a cutting blade and its rear end bent toward a second receiving groove to form a pivotally driven member. An elastic member positioned between the first and the second handle has one end hooked on the first handle and the other end hooked with the rear end of the pivotally driven member for pulling the pipe-cutting member to carry out reciprocating shifting. A pivotal actuating member is rotatably assembled in the second handle to resist against the lower end of the pivotally driven member. In using, the pivotally driven member is actuated by the elastic member to move and make the pivotal actuating member rotate and drive a cutting edge to cut off a pipe.Type: GrantFiled: March 7, 2008Date of Patent: February 15, 2011Inventor: Hsiu-Man Yu Chen
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Publication number: 20100293794Abstract: A garden scissors comprises a first handle and a second handle respectively having a first blade and a second blade at front ends thereof, wherein the first blade has a positioning slot; a torsion spring arranged between the first handle and the first blade with one end thereof fixedly installed in the first handle and another end thereof passing through the positioning slot and the second blade and fixedly installed in the second handle; a pin track formed on the second handle; a rotary switch device connecting with the second handle; a pin block passing through the second handle to connect with the rotary switch device and driven by the rotary switch device to move in the pin track; and a screw passing through the second handle, the second blade, the first blade, the torsion spring and the first handle to connect with a nut to form a garden scissors.Type: ApplicationFiled: February 25, 2010Publication date: November 25, 2010Inventor: Su-Hua SHAN
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Publication number: 20100269356Abstract: A pair of gardening shears include a first pivot base having a first blade and a first handle, a second pivot base pivotally connected with the first pivot base and having a second blade and a connecting portion, a mounting base having a second handle connected with the connecting portion to drive the second pivot base relative to the first pivot base, and a plug having an insert which extends through the mounting base, the first pivot base and the second pivot base and has an inner portion provided with a finger hole. Thus, when a user is operating the first handle and the second handle, the finger hole of the plug allows passage of the user's finger, so that the user can hold the first handle and the second handle stably to operate the shears smoothly.Type: ApplicationFiled: April 27, 2009Publication date: October 28, 2010Inventor: Chi-Tung Chen
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Publication number: 20100064528Abstract: Scissors for accommodating different sized hands and for requiring a minimal force to close. The scissors include a pair of handles, a pair of cutting jaws, and a spring. The pair of cutting jaws extend from the pair of handles so as to form a pair of shanks. The pair of shanks overlap each other at the pair of cutting jaws and are pivotally connected to each other by a pivot pin. The spring is operatively connected to the pair of handles, is so constructed so as to have a non-biased initial open position for accommodating the different sized hands, and is so located for requiring the minimal force to close the pair of handles from the non-biased initial open position.Type: ApplicationFiled: September 15, 2008Publication date: March 18, 2010Inventor: Muhammad Habib
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Patent number: 7596870Abstract: A multipurpose tool includes bypass shears with handles that fold around the shears into a compact configuration in which the blades of the shears are hidden. A sharp-edged cutter is removable from the shears for resharpening or replacement. A blade safety lock holds the blades closed and is automatically engaged as the handles are folded. The handles are comfortably shaped and may include overmolded elastomeric cushioning portions.Type: GrantFiled: March 2, 2004Date of Patent: October 6, 2009Assignee: Leatherman Tool Group, Inc.Inventors: Glenn Klecker, Benjamin C. Rivera
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Patent number: 7520886Abstract: 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: GrantFiled: January 27, 2006Date of Patent: April 21, 2009Assignee: Wilson-Cook Medical Inc.Inventor: Vihar C. Surti
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Patent number: 7497016Abstract: A pair of gardening shears include a main body, two shanks, two positioning blocks, two handles, and two handle jackets. Thus, each of the two handles is retracted inwardly onto and fully expanded outwardly from the main body to adjust the distance between the main body and each of the two handles, thereby facilitating the user operating the gardening shears in an energy-saving manner. In addition, each of the two handles is substantially arc-shaped and is bent outwardly to provide a comfortable sensation to the user, thereby facilitating the user holding the gardening shears. Further, each of the two handles is exactly locked onto the main body by the locking member without incurring slip, thereby facilitating the user holding and operating the gardening shears.Type: GrantFiled: June 12, 2006Date of Patent: March 3, 2009Inventor: Chin-Sung Wu
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Publication number: 20080256809Abstract: A cutting tool is described that enables quick and simple blade replacement. The cutting tool utilizes a pair of handles configured in a scissor-like arrangement. A cutting blade is releasably engaged with one of the handles. A spring or other biasing member urges the handles apart from one another.Type: ApplicationFiled: April 23, 2007Publication date: October 23, 2008Inventors: Steven M. Macsay, Glen R. Chartier, David L. Machovina
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Patent number: 7178245Abstract: A pair of gardening shears include a first handle, a first cutting member, a second cutting member, and a second handle. Thus, when the second cutting member is movable toward the first cutting member to perform the cutting action, the linking rod of the second cutting member pushes the first cutting member to drive the first cutting member to pivot about the drive arm of the mounting seat to push the first blade of the first cutting member downward, so that the first blade of the first cutting member is further movable toward the second blade of the second cutting member so as to enhance the cutting force of the first cutting member and the second cutting member thereby enhancing the working efficiency of the gardening shears.Type: GrantFiled: March 14, 2006Date of Patent: February 20, 2007Assignee: Duracraft Products Co., Ltd.Inventor: Mike C. Lee
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Patent number: 6860017Abstract: A nipper is disclosed, having handles outwardly-biased by a spring and a removable, flexible lever member can be a second spring. The biasing force can thereby be adjusted by employment or removal of flexible lever member.Type: GrantFiled: March 20, 2002Date of Patent: March 1, 2005Inventor: Jerry Mennicken
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Patent number: 6725547Abstract: A pair of gardening shears include a blade fastened to one end of a first handle, and a fixed jaw plate fastened to one end of a second handle which is pivotally fastened to the first handle by a pivoting member. The pivoting member is formed of a pivot and a nut which is engaged with the pivot and is positioned by a locating plate. The nut is provided with a toothed portion. The locating plate is provided with a toothed portion which is engaged with the toothed portion of the nut. The fixed jaw plate is provided with a recessed edge which is opposite in location to the blade and is intended to reduce friction between the fixed jaw plate and the blade.Type: GrantFiled: August 21, 2001Date of Patent: April 27, 2004Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Publication number: 20040000058Abstract: A tool device includes a pair of pivotal levers, and two handles having one end detachably and quickly secured to the levers with quick release devices without additional tools. A spring may be secured between the levers before the levers are secured to the handles. The handles may be detachably secured to the other pairs of pivotal levers. The quick release devices each includes a pin engaged in one end of a shank, and a bar having an oblong hole for slidably receiving the pin, and for allowing the bar to be rotated between a release position and a lock position.Type: ApplicationFiled: July 1, 2002Publication date: January 1, 2004Inventor: Hway Jeng Shyr
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Patent number: 6643937Abstract: A pair of gardening shears includes a fixed handle, a fixed jaw, a movable handle, a movable jaw, and a pivoting member for pivoting the fixed jaw and the movable jaw together. The pivoting member is formed of a bolt, a nut, and a collar for preventing sideward motion of the bolt and for preventing the fixed jaw from turning along with the bolt. The fixed jaw is provided with a recessed portion for reducing the area of mechanical friction between the fixed jaw and the movable jaw. The nut is provided with a serrated portion which is engaged with a serrated portion of a pivoting plate of the movable handle. The fixed handle is provided with a rubber piece serving as a cushion to absorb shock noise when the movable handle is moved toward the fixed handle.Type: GrantFiled: March 4, 2002Date of Patent: November 11, 2003Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Publication number: 20030163923Abstract: The invention relates to a locking device, especially for anvil shears, ensuring closure of the shear free from any light gap and irrespective of manufacturing tolerances and wear. A pivoting tumbler (24) fitted with a cam surface (34) and interacting with a corresponding cam surface (32) of the other limb (14) of the shear is actuated by the force of an opening spring (20) into closed position (10). The arrangement operates in such a way that the cam surfaces interact in a self-locking manner when continuously pivoted in the closing area and the tumbler may be moved to an end position when the limbs of the shear are progressively closed thus ensuring a final closing position. The cam surfaces (34) of the tumbler interacting with a cam surface (32) of a catch groove (28) can have a larger configuration in the direction of closure. Due to technical manufacturing reasons, an arched cam surface may also be provided, which is eccentrically located in relation to the pivoting axis of the tumbler.Type: ApplicationFiled: March 11, 2003Publication date: September 4, 2003Applicant: Wolf-GmbH & Co.KGInventors: Manfred Schneider, Gerhard Staudt
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Patent number: 6598300Abstract: 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 includes 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: GrantFiled: October 15, 2001Date of Patent: July 29, 2003Assignee: Hung Chuan Hsian Industries Co., Ltd.Inventor: Chin-Chi Huang
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Patent number: 6591506Abstract: This invention describes a hand operated, end cutting, sheet metal shear that makes cuts perpendicular to the axis of the tool handle. The shearing surfaces consist of a moving shear blade with a fixed rake angle and shear angle, cutting along a blunt anvil. The shear blade is pivotally mounted to the tool body and actuated by a toggle linkage and a movable handle. A stroke adjustment screw is incorporated into the fixed handle. The blade passes along the fixed anvil in response to squeezing the handles. The blade is angled so that the shearing action takes place sequentially along the anvil edge. The end cutting sheet metal tool is used to produce cuts at an angle to cuts made with sheet metal cutting tools.Type: GrantFiled: September 4, 2001Date of Patent: July 15, 2003Inventor: Donald J Hackman
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Patent number: 6592603Abstract: A micro-surgical forceps having a handle and integral spring arms that are interconnected at the end of the forceps remote from said blades in a tongue and groove arrangement that allows for operation of the forceps with a minimum of finger pressure. Plastic covers for the handle for securing the forceps blades is a further embodiment of the invention. The forceps are fabricated of a non-heat treatable metal and the gripping platforms are manually adjustable. A scissors having sharpened curved blades that form an arc across one another and are fabricated of non-heated metal that is flexible.Type: GrantFiled: December 15, 2000Date of Patent: July 15, 2003Inventor: Michael Lasner
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Publication number: 20030126747Abstract: 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: ApplicationFiled: June 10, 2002Publication date: July 10, 2003Inventor: Jun Kusaba
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Publication number: 20030070300Abstract: 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: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Applicant: Hung Chuan Hsian Industries Co., Ltd.Inventor: Chin-Chi Huang
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Patent number: 6523266Abstract: A pair of shears has a pair of handles, a pair of front connection portions, and a pair of cutting devices. Each front connection portion is disposed on a front portion of the respective handle. Each front connection portion has a through hole and a through aperture. Each cutting device has a first blade, a second blade, a pivot hole, two positioning grooves, and two round holes. Two extension springs each has two ends inserted in the round holes of the two cutting devices. A bolt passes through two hollow washers, two through holes, two pivot holes, and a nut. A positioning post is inserted in one of the through apertures. A positioning column passes through a hooking plate and is inserted in the other of the through apertures.Type: GrantFiled: June 12, 2001Date of Patent: February 25, 2003Inventor: Chung-Cheng Yang