Patents by Inventor Yao-Chung Huang

Yao-Chung Huang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130152404
    Abstract: A position restriction structure of scissors includes a main body, a second body, a driving handle, a connecting piece, a restricting piece and a plurality of hinged units, wherein a main hinge hole and a second hinge hole provided for the second body and the driving handle are through and passing through a center portion of the main body, and the second body and the driving handle have a gearing teeth portion and a activating teeth portion engaged with each other. The restricting piece attaches to one side of the second body and driving handle and the hinge unit passes therethrough. The restricting piece clamps the second body and the driving handle through a screw and screw nut of the hinge unit to restrict axial position of the gearing teeth portion and activating teeth portion to prevent the second body from shear forces and to improve durability of the product.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • 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: 8266804
    Abstract: A garden shears includes a pressing member, a holding member, a cutting member and a ratchet. An aperture of the cutting member combines with an aperture of the pressing member for a pivot. The holding member and the ratchet are assembled together at an assembling portion of the pressing member, and teeth of the ratchet engage with a pawl of the cutting member such that the pressing member, the holding member and the ratchet have different pivot points. An opening between the blade and the anvil is smaller than an opening formed between the handle and the holding member. Since the opening formed between the handle and the holding member is larger than the cutting opening between the blade and the anvil, a stronger cutting torque is applied to increase the clipping strength derived from the anvil and the blade.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: September 18, 2012
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20120198705
    Abstract: Garden shears that avoid loosening of a shaft pin has shears having overlapped first and second cutting members, the first cutting member and second cutting member respectively connected to a first handle and a second handle. The first and second cutting members are secured with the shaft set. The shaft set has a threaded shaft pin, a washer, a threaded securing member and at least two engaging members. when the shears are assembled with the shaft set, the threaded securing member respectively has one engaging member on each side, and the engaging teeth of the threaded securing member engage with the two engaging members to prevent the threaded securing member from loosening due to the repeated opening and closing movements of the shears, and which can improve the smoothness of the operation of the shears and increase both safety and convenience.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 9, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20120186087
    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.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 26, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • 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
  • Publication number: 20120174417
    Abstract: Garden shears have the extended rod connected to the handle to increase the reachable length and the cutting arm length of the garden shears for various ranges. The extended rod has the containment slot for accepting the tool member and the spacer at the opening, and the insertion hole of the spacer allows the tool member to be assembled with the extended rod to create a handy tool.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 12, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20120167397
    Abstract: Extended reach garden shears include an extension rod, a handgrip, a cutting head and a pull handle. The extension rod is formed with an accommodating space, a front opening and a rear opening. The extension rod is provided with a pin hole and a rope-guiding hole. The handgrip is slidingly disposed on the extension rod. The cutting head is inserted into the front opening. The pull handle is inserted into the rear opening. A fixed base is fixed in the accommodating space. A movable base is slidingly disposed in the accommodating space and connected to the cutting head. A rope has a combining end, a connecting end and a wrapping section. The wrapping section wraps around the fixed base and the movable base. The combining end is connected to the pull handle. The connecting end is connected to the pull handle. The rope, the fixed base and the movable base enable the garden shears to achieve an efficient trimming action.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 5, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20120151781
    Abstract: A garden shears has a first shear, a second shear and two joined pressing arms. The first shear has a handle portion, and a positioned first pivot hole and an first eccentric pivot hole. The second shear has an elliptical second pivot hole, and a sidewall of the second pivot hole has a limiting surface. A sliding slot is disposed on the second shear, and a limiting indentation is disposed along an outer sidewall between the second pivot hole and the sliding slot, with a second cutting portion extending from an upper section of the second shear. The two joined pressing arms respectively have a connecting rod at a lower section and an Z-shaped upper section; an elliptical engaging pivot hole is disposed on each arm, and a third pivot hole is disposed at the upper section and used to be engaged with a first spacer.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 21, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD
    Inventor: Yao-Chung Huang
  • Publication number: 20120137527
    Abstract: A garden shears with a driving mechanism includes two cutter bases, an anvil cooperating with the cutter bases, two supporting plates, a cutter plate, and an operating arm. The two cutter bases face each other to form an accommodating space in which the anvil and the two supporting plates are sandwiched. The anvil is fixed to top sections of the two cutter bases. The cutter plate and the operating arm are sandwiched between the two supporting plates. A roller wheel is disposed in a positioning slot of the cutter blade and sandwiched between restricting holes of the two supporting plates. A pivotal hole of the operating arm is pivotally connected between pivotal holes of the two supporting plates in such a manner that a driving toothed edge of the operating arm is drivingly engaged with a driven rack of the cutter plate. A pull lever is fixed to a fixing portion provided on a lower portion of the cutter plate through an elongate slot of the cutter base.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 7, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD
    Inventor: Yao-Chung Huang
  • Publication number: 20120131802
    Abstract: 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: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • 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
  • Publication number: 20120060377
    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: Application
    Filed: September 15, 2010
    Publication date: March 15, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20120047749
    Abstract: 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: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Inventor: Yao-Chung Huang
  • Publication number: 20120017445
    Abstract: A garden shears includes a pressing member, a holding member, a cutting member and a ratchet. The second through aperture of the cutting member is combined with the first assembling aperture of the pressing member and used as a pivot point. The holding member and the ratchet are assembled together at the assembling portion of the pressing member, and the driving teeth of the ratchet are engaged with the pawl of the cutting member such that the pressing member, the holding member and the ratchet have different pivot points. The opening between the blade and the anvil is smaller than the opening formed between the handle and the holding member. In other words, when a user holds both of the handle and the holding member to cut an object, since the opening formed between the handle and the holding member is larger than the cutting opening between the blade and the anvil, a stronger cutter torque is applied to increase the clipping strength derived from the anvil and the blade.
    Type: Application
    Filed: July 26, 2010
    Publication date: January 26, 2012
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Patent number: 8079150
    Abstract: 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: Grant
    Filed: July 30, 2009
    Date of Patent: December 20, 2011
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang
  • Publication number: 20110214293
    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: Application
    Filed: March 2, 2010
    Publication date: September 8, 2011
    Inventor: Yao-Chung Huang
  • Publication number: 20110203117
    Abstract: A garden shear cutting head with a lubricated pivot has: a shear body and a pivot. The shear body has a first cutting member and a second cutting member. A circular first assembling aperture is disposed in the first cutting member, and one end of the first assembling aperture has a lubrication slot. The second cutting member has a non-circular second assembling aperture corresponding to the first assembling aperture of the first cutting member, and a concave lip is around the second assembling aperture positioned to correspond to the lubrication slot. The pivot comprises a screw and a washer and is disposed through the first assembling aperture and the second assembling aperture and engaged with a locking member at another end. The screw has a head end, the head end has a filling hole through a central portion.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Publication number: 20110126415
    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: Application
    Filed: November 29, 2009
    Publication date: June 2, 2011
    Applicant: HO CHENG GARDEN TOOLS CO., LTD.
    Inventor: Yao-Chung Huang
  • Patent number: D671809
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 4, 2012
    Assignee: Ho Cheng Garden Tools Co., Ltd.
    Inventor: Yao-Chung Huang