Patents by Inventor Su-Hua Shan
Su-Hua Shan 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).
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Publication number: 20110107606Abstract: The present invention discloses a long reach pruner using movements and engagements of a blade unit, a first connection device, a second connection device, and an adjust device to adjust the swing range of the blade unit. The adjust device has a rotation element connected to a first press-fit element having a male thread on the surface thereof. When the rotation element is rotated downward, the male thread is driven to screw into a female thread of the first connection device and then fixed there; meanwhile, ratchet teeth of the first connection device engage with a ratchet of the second connection device. When the rotation element is rotated upward, the male thread is driven to screw out from the female thread and then fixed there; meanwhile, the ratchet teeth is separated from the ratchet. Thereby, the swing angle of the blade unit is adjusted and then fixed.Type: ApplicationFiled: February 25, 2010Publication date: May 12, 2011Inventor: Su-Hua SHAN
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Publication number: 20110000026Abstract: A retractile-fixing structure for a scissors comprises an inner tube having recessions and an outer tube allowing the inner tube to slide thereinside and having a handle and a fixing hole. One end of the retractile-fixing structure has a connection member connected with a blade. A switch is arranged in the handle, and a rolling pin is arranged inside the fixing hole. The rolling pin rolls on the inner tube or snap-fits to one recession. A pull rod is arranged between the inner and outer tubes with one end connected to the switch and another end engaging with the rolling pin. When the switch opens, the pull rod is separated from the rolling pin and driven to compress a spring; the rolling pin leaves the recession and slides on the inner tube simultaneously. When the switch closes, the spring makes the pull rod engage with the rolling pin; the rolling pin snap-fits to the recession; the inner tube securely engages with the outer tubes.Type: ApplicationFiled: September 1, 2009Publication date: January 6, 2011Inventor: Su-Hua SHAN
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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: 20100269357Abstract: A labor-saving garden scissors comprises a first handle having a first blade; a second handle having a first toothed portion; a second blade having a second toothed portion mating with the first toothed portion; a connection bar having first, second and third pivotal points, wherein the third and second pivotal points are respectively pivotally-coupled to the second blade and second handle; a first pivotal element pivotally-coupling the first and second blades; a second pivotal element pivotally-coupling the second blade and third pivotal point; a third pivotal element pivotally-coupling the second handle and second pivotal point; and a fourth pivotal element pivotally-coupling the second blade, first blade and first pivotal point with the second blade arranged between the first blade and the connection bar. The effort lever arm between the second and third pivotal points is greater than the resistance lever arm between the first and third pivotal points.Type: ApplicationFiled: February 25, 2010Publication date: October 28, 2010Inventor: Su-Hua Shan
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Patent number: 7658011Abstract: A lopper includes a slender rod and a pruning means mounted on a top of the rod. The slender rod includes an inner tube and an outer tube telescoped mutually such that the inner tube is shiftable in the outer tube for changing the length it jutting out from the outer tube. An extension-control unit is provided at the border region between the inner tube and the outer tube for positioning the inner tube. A fist actuating unit and a second actuating unit are provided at the outer surface of the outer tube. The fist and second actuating units are connected with the pruning means through a first rope, a second rope and a third rope so that when a user pulls the first or second actuating unit, a shear assembly of the pruning means can be closed to cut branches and leaves of plants.Type: GrantFiled: August 7, 2007Date of Patent: February 9, 2010Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Publication number: 20090038162Abstract: A lopper comprises a slender rod and a pruning means mounted on a top of the rod. The slender rod is composed of an inner tube and an outer tube telescoped mutually such that the inner tube is shiftable in the outer tube for changing the length it jutting out from the outer tube. An extension-control unit is provided at the border region between the inner tube and the outer tube for positioning the inner tube. A first actuating unit and a second actuating unit are provided at the outer surface of the outer tube. The first and second actuating units are connected with the pruning means through a first rope, a second rope and a third rope so that when a user pulls the first or second actuating unit, a shear assembly of the pruning means can be closed to cut branches and leaves of plants.Type: ApplicationFiled: August 7, 2007Publication date: February 12, 2009Inventor: Su-Hua Shan
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Patent number: 7454837Abstract: A pair of effort-saving shears primarily comprises: a first shear element having a combining portion with a pivot hole and a shear element combining hole thereon, and a first handle further attached to the first shear element; a second shear element having combining portion with a shear element combining hole; a handle shaft axially positioned in a second handle and having a combining portion at one end; an effort-saving transmission assembly including a toothed block fixed on one side of the combining portion of the handle shaft, and a toothed hole provided on the combining portion of the second shear element, wherein the toothed hole enclose and partially engage the toothed block by parts of the teeth thereof; and wherein the combining portion of the first shear element overlaps the combining portion of the second shear element; a pivot member, piercing through said pivot holes to be placed between the toothed hole and the toothed block; and a shear element combining pin piercing through said shear elementType: GrantFiled: October 14, 2006Date of Patent: November 25, 2008Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Publication number: 20080115368Abstract: A pair of gardening shears comprises: a first shear element having a cutting blade portion at one end, a combining portion at the opposite end comprising a pivot hole and a shear element combining hole, and a first handle further attached to the first shear element; a second shear element having an anvil blade portion at one end, and a combining portion at the opposite end comprising a pivot hole and a shear element combining hole as well as a handle shaft combining hole a handle shaft axially positioned within a second handle; a pivot member, a shear element combining pin; and a shear element pivot shaft.Type: ApplicationFiled: October 30, 2006Publication date: May 22, 2008Inventor: Su-Hua Shan
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Publication number: 20080086892Abstract: A pair of effort-saving shears primarily comprises: a first shear element having a combining portion with a pivot hole and a shear element combining hole thereon, and a first handle further attached to the first shear element; a second shear element having combining portion with a shear element combining hole; a handle shaft axially positioned in a second handle and having a combining portion at one end; an effort-saving transmission assembly including a toothed block fixed on one side of the combining portion of the handle shaft, and a toothed hole provided on the combining portion of the second shear element, wherein the toothed hole enclose and partially engage the toothed block by parts of the teeth thereof; and wherein the combining portion of the first shear element overlaps the combining portion of the second shear element; a pivot member, piercing through said pivot holes to be placed between the toothed hole and the toothed block; and a shear element combining pin piercing through said shear elementType: ApplicationFiled: October 14, 2006Publication date: April 17, 2008Inventor: Su-Hua Shan
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Patent number: D545646Type: GrantFiled: October 31, 2005Date of Patent: July 3, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D546642Type: GrantFiled: October 19, 2005Date of Patent: July 17, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D546643Type: GrantFiled: October 19, 2005Date of Patent: July 17, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D546646Type: GrantFiled: October 19, 2005Date of Patent: July 17, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D547139Type: GrantFiled: October 31, 2005Date of Patent: July 24, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D547140Type: GrantFiled: October 31, 2005Date of Patent: July 24, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D547141Type: GrantFiled: October 31, 2005Date of Patent: July 24, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D547144Type: GrantFiled: October 19, 2005Date of Patent: July 24, 2007Assignee: Natura Innovation Ltd.Inventor: Su-Hua Shan
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Patent number: D547145Type: GrantFiled: October 19, 2005Date of Patent: July 24, 2007Assignee: Natura Innovative Ltd.Inventor: Su-Hua Shan