US20190254238A1 - Tree pruner - Google Patents
Tree pruner Download PDFInfo
- Publication number
- US20190254238A1 US20190254238A1 US15/902,494 US201815902494A US2019254238A1 US 20190254238 A1 US20190254238 A1 US 20190254238A1 US 201815902494 A US201815902494 A US 201815902494A US 2019254238 A1 US2019254238 A1 US 2019254238A1
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- United States
- Prior art keywords
- rotating wheel
- blade
- main body
- seat
- pivot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/02—Secateurs; Flower or fruit shears
- A01G3/025—Secateurs; Flower or fruit shears having elongated or extended handles
- A01G3/0255—Tree pruners, i.e. pruning shears carried at the end of a pole
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
- A01G3/081—Manual cutting tools not otherwise provided for, e.g. pruning hooks
Definitions
- the present invention relates to a tree pruner, and more particularly to a tree pruner which can reduce the volume effectively and improve the cutting smoothness greatly.
- a conventional tree pruner adopts a lever-type operation.
- the conventional tree pruner comprises a blade seat 92 coupled to a connecting pole 91 .
- the blade seat 92 is pivotally connected with a blade 93 .
- the blade seat 92 has a notch 94 facing downward.
- the blade 93 has a cutting edge 931 corresponding to the notch 94 .
- the blade 93 has an arm portion 932 extending in the direction away from the cutting edge 931 .
- a tension spring 95 is connected between the arm portion 932 and the blade seat 92 . By the elastic force of the tension spring 95 , the blade 93 is kept at the position not entering the notch 94 in a normal state.
- the distal end of the arm portion 932 and the connecting pole 91 are provided with pulleys 96 , respectively.
- a rope 97 is wound around the two pulleys 96 .
- the arm portion 932 of the blade 93 is driven to drive the cutting edge 931 to swing relative to the notch 94 to achieve a cutting operation.
- this tree pruner has the following defects:
- the arm portion 932 (namely, the force arm) of the blade 93 of the conventional tree pruner has a certain length, leading to a problem that the packaging volume is too large.
- the primary object of the present invention is to provide a tree pruner which has a labor-saving effect and can reduce the packaging volume greatly.
- Another object of the present invention is to provide a tree pruner which can solve the problem that the swing radius of the arm portion of the conventional tree pruner is too large to be disturbed by the surrounding branches.
- the present invention can effectively ensure the cutting efficiency.
- a further object of the present invention is to provide a tree pruner which can ensure that the direction of the force applied by the user is consistent so that the operation is smooth.
- the tree pruner of the present invention comprises a connecting pole.
- the connecting pole is connected with a main body.
- a blade seat is fixedly connected to the main body.
- a blade is pivotally connected to the blade seat. The blade is pivotal relative to the blade seat for performing cutting.
- the main body is pivotally connected with a rotating wheel.
- the rotating wheel is connected with a pull member.
- the rotating wheel is rotatable relative to the main body by pulling the pull member.
- An outer end surface of the rotating wheel is formed with a traction portion located away from a pivot axis of the rotating wheel.
- the blade has a cutting edge extending toward the blade seat and a drive arm extending outwardly.
- a distal end of the drive arm is formed with a drive portion.
- One end of a pull rod is pivotally connected to the traction portion.
- Another end of the pull rod is pivotally connected to the drive portion.
- the blade, the pull rod and the rotating wheel are linked with each other. By pulling the pull member, the rotating wheel is driven to rotate, and the pull rod is pulled to drive the cutting edge of the blade to swing for performing cutting.
- one end of the main body is formed with a receiving end for connecting the connecting pole.
- Another end of the main body is outwardly enlarged to form a head having a hollow shell shape.
- One side of the head is communicated with the outside to form an opening.
- the head has an accommodating space therein.
- the rotating wheel is correspondingly disposed in the accommodating space. The outer end surface of the rotating wheel is flush with an end edge of the opening.
- the pull member is in the form of a strap.
- One end of the pull member is fixedly connected to the rotating wheel.
- Another end of the pull member is wound around the rotating wheel and then extends downward along a vertical tangent line tangent to an outer circumference of the rotating wheel.
- FIG. 1 is a perspective view of the present invention
- FIG. 2 is an exploded view of the present invention
- FIG. 3 is a schematic view of the present invention.
- FIG. 4 is a sectional schematic view of the present invention after assembled
- FIG. 5 is a structural schematic view of the present invention after assembled
- FIG. 6 is a schematic view of the knife of the present invention.
- FIG. 7 is a schematic view showing the cutting operation of the present invention.
- FIG. 8 is a structural schematic view of a conventional tree pruner.
- FIG. 9 is a schematic view showing the cutting operation of the conventional tree pruner.
- a tree pruner 10 in accordance with the present invention comprises a main body 21 fixedly connected to a connecting pole 11 .
- the main body 21 is provided with a rotating wheel 31 , a pull member 41 , a blade seat 51 , a blade 61 , and a pull rod 71 .
- One end of the main body 21 is formed with a receiving end 22 for connecting the connecting pole 11 .
- Another end of the main body 21 is outwardly enlarged to form a head 23 having a hollow shell shape.
- One side of the head 23 is communicated with the outside to form an opening 24 .
- the head 23 has an accommodating space 25 therein.
- a shaft seat 26 is convexly provided in the accommodating space 25 .
- An annular wall 27 is provided around the shaft seat 26 . The annular wall 27 is spaced apart from the shaft seat 26 and has a notch 271 .
- the rotating wheel 31 is correspondingly disposed in the accommodating space 25 .
- the rotating wheel 31 is in the shape of a disk.
- the rotating wheel 31 has an inner end surface 311 facing the shaft seat 26 , an outer end surface 312 opposite to the inner end surface 311 , and a circumferential surface 313 located between the inner end surface 311 and the outer end surface 312 .
- the outer end surface 312 of the rotating wheel 31 is flush with the end edge of the opening 24 .
- the pull member 41 is in the form of a strap. One end of the pull member 41 is fixedly connected to an engaging groove 32 of the circumferential surface 313 .
- the blade seat 51 has a downward notch 52 .
- One side of the notch 52 is formed with a first connecting portion 53 located above the notch 52 and a second connecting portion 54 located under the notch 52 .
- the blade seat 51 has a first pivot portion 55 between the first connecting portion 53 and the second connecting portion 54 .
- the second connecting portion 54 of the blade seat 51 is fixed to the receiving end 22 of the main body 21 .
- the first connecting portion 53 is opposite to a pivot axis O of the rotating wheel 31 .
- a pivot shaft 33 passes through the first connecting portion 53 and the pivot axis O of the rotating wheel 31 in sequence and is connected to the shaft seat 26 , so that the blade seat 51 is positioned on the main body 21 and the rotating wheel 31 .
- the rotating wheel 31 can be rotated relative to the main body 21 about the pivot shaft 33 .
- a torsion spring 28 is provided between the shaft seat 26 and the annular wall 27 .
- One end of the torsion spring 28 is against the notch 271 of the annular wall 27 .
- Another end of the torsion spring 28 is against an engaging portion 34 in the form of a protruding post on the inner surface 311 of the rotating wheel 31 .
- the middle portion of the blade 61 has a second pivot portion 62 .
- the second pivot portion 62 of the blade 61 is pivotally connected to the first pivot portion 55 of the blade seat 51 .
- Two ends of the blade 61 are respectively formed with a cutting edge 63 extending toward the notch 52 and a drive arm 64 substantially perpendicular to the cutting edge 63 and extending outwardly.
- the distal end of the drive arm 64 is formed with a drive portion 65 .
- the outer end surface 312 of the rotating wheel 31 is formed with a traction portion 35 located away from the pivot axis O.
- the pull rod 71 has two opposite ends. The two ends of the pull rod 71 are bent to have an angle of about 140-145 degrees.
- One end of the pull rod 71 is pivotally connected to the traction portion 35 and the other end is pivotally connected to the drive portion 65 of the blade 61 , so that the blade 61 , the pull rod 71 and the rotating wheel 31 form a connection relation with each other.
- the blade 61 is kept at a position where it does not enter the notch 52 .
- the linear distance H 1 of the drive arm 64 from the second pivot portion 62 to the drive portion 65 is greater than the linear distance H 2 of the pull rod 71 from the drive portion 65 to the traction portion 35 .
- the linear distance H 2 of the pull rod 71 from the drive portion 65 to the traction portion 35 is greater than the linear distance H 3 of the rotating wheel 31 from the pivot axis O to the traction portion 35 .
- one side of the head 23 is formed with an engaging recess 29 for mounting a knife 81 .
- the engaging recess 29 is provided with a screw portion 291 for engagement of a locking member 292 and two protrusions 293 .
- the screw portion 291 and the two protrusions 293 pass through the knife 81 , and then the locking member 292 is locked on the screw portion 291 so that the knife 81 is positioned on the head 23 .
- the rotating wheel 31 can be driven to rotate in the reverse direction by the return elastic force of the torsion spring 28 itself, so that the pull member 41 , the pull rod 71 and the blade 61 can be pivoted with the reverse rotation of the rotating wheel 31 to return to the initial state (as shown in FIG. 6 ).
- the present invention has the following advantages:
- the present invention has a labor-saving effect by virtue of its structure. With the arrangement of the rotating wheel 31 , the packaging volume can be reduced greatly.
- the pull member 41 drives the rotating wheel 31 to rotate about the pivot shaft 33 and further drives the pull rod 71 and the blade 61 to perform cutting. Therefore, there is no problem that the swing radius of the arm portion of the conventional tree pruner is too large to be disturbed by the surrounding branches.
- the present invention can effectively ensure the cutting efficiency.
- the pull member 41 has one end connected to the rotating wheel 31 and the other end extending downward along the vertical tangent line D tangent to the outer circumference of the rotating wheel 31 . Therefore, when in use, the pull member 41 is pulled by applying a vertical downward single force to synchronously drive the rotating wheel 31 to rotate, and then the pull rod 71 and the blade 61 can be driven to perform cutting.
- the present invention not only can be smoother in operation but also can effectively solve the problem that the direction of the applied force of the conventional tree pruner may deviate to disperse the applied force.
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Knives (AREA)
- Harvesting Machines For Specific Crops (AREA)
Abstract
Description
- The present invention relates to a tree pruner, and more particularly to a tree pruner which can reduce the volume effectively and improve the cutting smoothness greatly.
- As shown in
FIG. 8 , a conventional tree pruner adopts a lever-type operation. The conventional tree pruner comprises ablade seat 92 coupled to a connectingpole 91. Theblade seat 92 is pivotally connected with ablade 93. Theblade seat 92 has anotch 94 facing downward. Theblade 93 has acutting edge 931 corresponding to thenotch 94. Theblade 93 has anarm portion 932 extending in the direction away from thecutting edge 931. Atension spring 95 is connected between thearm portion 932 and theblade seat 92. By the elastic force of thetension spring 95, theblade 93 is kept at the position not entering thenotch 94 in a normal state. The distal end of thearm portion 932 and the connectingpole 91 are provided withpulleys 96, respectively. Arope 97 is wound around the twopulleys 96. By pulling therope 97, thearm portion 932 of theblade 93 is driven to drive thecutting edge 931 to swing relative to thenotch 94 to achieve a cutting operation. However, this tree pruner has the following defects: - 1. In order to ensure the labor-saving characteristic, the arm portion 932 (namely, the force arm) of the
blade 93 of the conventional tree pruner has a certain length, leading to a problem that the packaging volume is too large. - 2. In the actual cutting operation, since the
arm portion 932 of theblade 93 of the conventional tree pruner is long, as shown inFIG. 9 , when thearm portion 932 is driven by therope 97 to swing outward, the swing radius is likely to be disturbed by the surrounding branches to reduce the cutting efficiency. - 3. When the user pulls the
rope 97 to drive thearm portion 932 of the conventional tree pruner to swing, the user's arm used to pull therope 97 must gradually extend outwardly along with the swing path of thearm portion 932. Therefore, the operation is not smooth, and the direction of the applied force of the conventional tree pruner may deviate to disperse the applied force. - Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.
- The primary object of the present invention is to provide a tree pruner which has a labor-saving effect and can reduce the packaging volume greatly.
- Another object of the present invention is to provide a tree pruner which can solve the problem that the swing radius of the arm portion of the conventional tree pruner is too large to be disturbed by the surrounding branches. The present invention can effectively ensure the cutting efficiency.
- A further object of the present invention is to provide a tree pruner which can ensure that the direction of the force applied by the user is consistent so that the operation is smooth.
- In order to achieve the aforesaid object, the tree pruner of the present invention comprises a connecting pole. The connecting pole is connected with a main body. A blade seat is fixedly connected to the main body. A blade is pivotally connected to the blade seat. The blade is pivotal relative to the blade seat for performing cutting.
- The main body is pivotally connected with a rotating wheel. The rotating wheel is connected with a pull member. The rotating wheel is rotatable relative to the main body by pulling the pull member. An outer end surface of the rotating wheel is formed with a traction portion located away from a pivot axis of the rotating wheel. The blade has a cutting edge extending toward the blade seat and a drive arm extending outwardly. A distal end of the drive arm is formed with a drive portion. One end of a pull rod is pivotally connected to the traction portion. Another end of the pull rod is pivotally connected to the drive portion. The blade, the pull rod and the rotating wheel are linked with each other. By pulling the pull member, the rotating wheel is driven to rotate, and the pull rod is pulled to drive the cutting edge of the blade to swing for performing cutting.
- Preferably, one end of the main body is formed with a receiving end for connecting the connecting pole. Another end of the main body is outwardly enlarged to form a head having a hollow shell shape. One side of the head is communicated with the outside to form an opening. The head has an accommodating space therein. The rotating wheel is correspondingly disposed in the accommodating space. The outer end surface of the rotating wheel is flush with an end edge of the opening.
- Preferably, the pull member is in the form of a strap. One end of the pull member is fixedly connected to the rotating wheel. Another end of the pull member is wound around the rotating wheel and then extends downward along a vertical tangent line tangent to an outer circumference of the rotating wheel.
-
FIG. 1 is a perspective view of the present invention; -
FIG. 2 is an exploded view of the present invention; -
FIG. 3 is a schematic view of the present invention; -
FIG. 4 is a sectional schematic view of the present invention after assembled; -
FIG. 5 is a structural schematic view of the present invention after assembled; -
FIG. 6 is a schematic view of the knife of the present invention; -
FIG. 7 is a schematic view showing the cutting operation of the present invention; -
FIG. 8 is a structural schematic view of a conventional tree pruner; and -
FIG. 9 is a schematic view showing the cutting operation of the conventional tree pruner. - Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.
- As shown in
FIGS. 1 to 5 , atree pruner 10 in accordance with the present invention comprises amain body 21 fixedly connected to a connectingpole 11. Themain body 21 is provided with arotating wheel 31, apull member 41, ablade seat 51, ablade 61, and apull rod 71. - One end of the
main body 21 is formed with a receivingend 22 for connecting the connectingpole 11. Another end of themain body 21 is outwardly enlarged to form ahead 23 having a hollow shell shape. One side of thehead 23 is communicated with the outside to form anopening 24. Thehead 23 has anaccommodating space 25 therein. Ashaft seat 26 is convexly provided in theaccommodating space 25. Anannular wall 27 is provided around theshaft seat 26. Theannular wall 27 is spaced apart from theshaft seat 26 and has anotch 271. - The
rotating wheel 31 is correspondingly disposed in theaccommodating space 25. Therotating wheel 31 is in the shape of a disk. Therotating wheel 31 has aninner end surface 311 facing theshaft seat 26, anouter end surface 312 opposite to theinner end surface 311, and acircumferential surface 313 located between theinner end surface 311 and theouter end surface 312. In this embodiment, when therotating wheel 31 is assembled in theaccommodating space 25, theouter end surface 312 of therotating wheel 31 is flush with the end edge of theopening 24. Thepull member 41 is in the form of a strap. One end of thepull member 41 is fixedly connected to an engaginggroove 32 of thecircumferential surface 313. Another end of thepull member 41 is wound along thecircumferential surface 313 and then extends downward along a vertical tangent line D tangent to the outer circumference of therotating wheel 31 and is connected to apulley block 42. Theblade seat 51 has adownward notch 52. One side of thenotch 52 is formed with a first connectingportion 53 located above thenotch 52 and a second connectingportion 54 located under thenotch 52. Theblade seat 51 has a first pivot portion 55 between the first connectingportion 53 and the second connectingportion 54. The second connectingportion 54 of theblade seat 51 is fixed to the receivingend 22 of themain body 21. The first connectingportion 53 is opposite to a pivot axis O of therotating wheel 31. Apivot shaft 33 passes through the first connectingportion 53 and the pivot axis O of therotating wheel 31 in sequence and is connected to theshaft seat 26, so that theblade seat 51 is positioned on themain body 21 and therotating wheel 31. By pulling thepull member 41, therotating wheel 31 can be rotated relative to themain body 21 about thepivot shaft 33. - A
torsion spring 28 is provided between theshaft seat 26 and theannular wall 27. One end of thetorsion spring 28 is against thenotch 271 of theannular wall 27. Another end of thetorsion spring 28 is against an engagingportion 34 in the form of a protruding post on theinner surface 311 of therotating wheel 31. When thepull member 41 drives therotating wheel 31 to rotate, the engagingportion 34 gradually compresses thetorsion spring 28 along with the rotation of therotating wheel 31, thereby providing therotating wheel 31 with kinetic energy of a reverse rotation. - The middle portion of the
blade 61 has asecond pivot portion 62. Thesecond pivot portion 62 of theblade 61 is pivotally connected to the first pivot portion 55 of theblade seat 51. Two ends of theblade 61 are respectively formed with acutting edge 63 extending toward thenotch 52 and adrive arm 64 substantially perpendicular to thecutting edge 63 and extending outwardly. The distal end of thedrive arm 64 is formed with adrive portion 65. Theouter end surface 312 of therotating wheel 31 is formed with atraction portion 35 located away from the pivot axis O. Thepull rod 71 has two opposite ends. The two ends of thepull rod 71 are bent to have an angle of about 140-145 degrees. One end of thepull rod 71 is pivotally connected to thetraction portion 35 and the other end is pivotally connected to thedrive portion 65 of theblade 61, so that theblade 61, thepull rod 71 and therotating wheel 31 form a connection relation with each other. Through the elastic function of thetorsion spring 28, in the normal state, theblade 61 is kept at a position where it does not enter thenotch 52. As shown inFIG. 5 , in this embodiment, the linear distance H1 of thedrive arm 64 from thesecond pivot portion 62 to thedrive portion 65 is greater than the linear distance H2 of thepull rod 71 from thedrive portion 65 to thetraction portion 35. The linear distance H2 of thepull rod 71 from thedrive portion 65 to thetraction portion 35 is greater than the linear distance H3 of therotating wheel 31 from the pivot axis O to thetraction portion 35. - Furthermore, as shown in
FIG. 6 , one side of thehead 23, opposite to theopening 24, is formed with an engagingrecess 29 for mounting aknife 81. The engagingrecess 29 is provided with ascrew portion 291 for engagement of a lockingmember 292 and twoprotrusions 293. Thescrew portion 291 and the twoprotrusions 293 pass through theknife 81, and then the lockingmember 292 is locked on thescrew portion 291 so that theknife 81 is positioned on thehead 23. - In use, as shown in
FIG. 7 , when the user manually pulls apull rope 421 of thepulley block 42 downward along the vertical tangent line D to synchronously drive thepull member 41 downward. Therotating wheel 31 is driven to rotate about thepivot shaft 33, and thepull rod 71 is pivoted with therotating wheel 31 so that thepull rod 71 drives thedrive arm 64 of theblade 61 to swing with thesecond pivot portion 62 as an axis and thecutting edge 63 of theblade 61 can be swung toward thenotch 52 for cutting. When thepull member 41 is moved downward to drive therotating wheel 31 to rotate, thetorsion spring 28 located in theaccommodating space 25 is gradually compressed by the engagingportion 34. When the user completes the cutting and releases thepull member 41, therotating wheel 31 can be driven to rotate in the reverse direction by the return elastic force of thetorsion spring 28 itself, so that thepull member 41, thepull rod 71 and theblade 61 can be pivoted with the reverse rotation of therotating wheel 31 to return to the initial state (as shown inFIG. 6 ). - According to the above structure, the present invention has the following advantages:
- 1. The present invention has a labor-saving effect by virtue of its structure. With the arrangement of the
rotating wheel 31, the packaging volume can be reduced greatly. - 2. In the actual cutting operation of the present invention, the
pull member 41 drives therotating wheel 31 to rotate about thepivot shaft 33 and further drives thepull rod 71 and theblade 61 to perform cutting. Therefore, there is no problem that the swing radius of the arm portion of the conventional tree pruner is too large to be disturbed by the surrounding branches. The present invention can effectively ensure the cutting efficiency. - 3. In the present invention, the
pull member 41 has one end connected to therotating wheel 31 and the other end extending downward along the vertical tangent line D tangent to the outer circumference of therotating wheel 31. Therefore, when in use, thepull member 41 is pulled by applying a vertical downward single force to synchronously drive therotating wheel 31 to rotate, and then thepull rod 71 and theblade 61 can be driven to perform cutting. The present invention not only can be smoother in operation but also can effectively solve the problem that the direction of the applied force of the conventional tree pruner may deviate to disperse the applied force. - Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.
Claims (7)
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US15/902,494 US10368495B1 (en) | 2018-02-22 | 2018-02-22 | Tree pruner |
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US15/902,494 US10368495B1 (en) | 2018-02-22 | 2018-02-22 | Tree pruner |
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US20190254238A1 true US20190254238A1 (en) | 2019-08-22 |
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CN113287438B (en) * | 2021-05-18 | 2022-07-19 | 江西木之歌装饰工程有限公司 | Safe and reliable's gardens construction is with equipment of pruning |
CN115007398B (en) * | 2022-06-28 | 2023-12-08 | 温州益慎建设有限公司 | Tree whitewashing equipment for municipal works |
Citations (8)
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---|---|---|---|---|
US5241752A (en) * | 1991-09-12 | 1993-09-07 | Fiskars Oy Ab | Pruning tool |
US5634276A (en) * | 1995-05-17 | 1997-06-03 | Shang Gu Enterprise Co., Ltd. | High branch pruning shears structure |
US5950315A (en) * | 1997-08-07 | 1999-09-14 | Fiskars Consumer Oy Ab | Lopper |
US6526664B2 (en) * | 2001-05-07 | 2003-03-04 | Aquapore Moisture Systems | Low profile pruning tool |
US20030097757A1 (en) * | 2001-11-29 | 2003-05-29 | Jeng-Yang Chung | Branch shears structure |
US6748663B2 (en) * | 2002-08-15 | 2004-06-15 | Fiskars Consumer Oy Ab | Lopper |
US7658011B2 (en) * | 2007-08-07 | 2010-02-09 | Natura Innovation Ltd. | Lopper |
GB2471774A (en) * | 2010-07-07 | 2011-01-12 | Jiin Huar Ind Co Ltd | Pruning hook |
-
2018
- 2018-02-22 US US15/902,494 patent/US10368495B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5241752A (en) * | 1991-09-12 | 1993-09-07 | Fiskars Oy Ab | Pruning tool |
US5634276A (en) * | 1995-05-17 | 1997-06-03 | Shang Gu Enterprise Co., Ltd. | High branch pruning shears structure |
US5950315A (en) * | 1997-08-07 | 1999-09-14 | Fiskars Consumer Oy Ab | Lopper |
US6526664B2 (en) * | 2001-05-07 | 2003-03-04 | Aquapore Moisture Systems | Low profile pruning tool |
US20030097757A1 (en) * | 2001-11-29 | 2003-05-29 | Jeng-Yang Chung | Branch shears structure |
US6748663B2 (en) * | 2002-08-15 | 2004-06-15 | Fiskars Consumer Oy Ab | Lopper |
US7658011B2 (en) * | 2007-08-07 | 2010-02-09 | Natura Innovation Ltd. | Lopper |
GB2471774A (en) * | 2010-07-07 | 2011-01-12 | Jiin Huar Ind Co Ltd | Pruning hook |
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US10368495B1 (en) | 2019-08-06 |
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