CN102259330B - Buoyancy hand tool capable of improving combining effect - Google Patents
Buoyancy hand tool capable of improving combining effect Download PDFInfo
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- CN102259330B CN102259330B CN 201010179930 CN201010179930A CN102259330B CN 102259330 B CN102259330 B CN 102259330B CN 201010179930 CN201010179930 CN 201010179930 CN 201010179930 A CN201010179930 A CN 201010179930A CN 102259330 B CN102259330 B CN 102259330B
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- air chamber
- space
- hand
- buoyancy
- handle
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Abstract
The invention provides a buoyancy hand tool capable of improving a combining effect, comprising a grip and a rod piece, wherein a hollow air chamber is arranged in the grip, and one end of the rod piece is inserted into the grip. In the buoyancy hand tool, a casing pipe is arranged in the air chamber, and the rod piece extends into the air chamber and is inserted into the casing pipe. Thus, the bonding strength of the grip and the rod piece can be effectively enhanced, and the operation torsion of the hand tool is improved.
Description
Technical field
The present invention is relevant with hand-held tool, detailed a kind of buoyancy hand-held tool that can float on the surface of finger, and the handle of this hand-held tool and rod member have preferable associativity.
Background technology
Press, in some specific place, for example on boats and ships, the ships, in case allow hand-held tool drop in the water accidentally, hand-held tool will sink under water and can't pick up.For solving this disappearance, hand-held tool shown in Figure 1 10 is arranged then, screwdriver for example, have a handle 12 and and be inserted in the rod member 14 of handle one end, be provided with the air chamber 15 of a hollow in this handle 12, make this hand-held tool 10 have buoyancy, therefore, if this hand-held tool drops in the water, handle will be kept afloat, and make things convenient for the user to search and pick up.
Yet in conventional construction, the rod member 14 of hand-held tool 10 only is fixed on the solid position 121 of handle 12 front ends, that is rod member only is combined to lack length with between handle, makes that this two bond strength of 12,14 is not good.When using hand-held tool, rod member bears high torsion with handle Chang Wufa and separates, and causes damage.
Summary of the invention
Purport of the present invention is taken off disappearance on solving, its main purpose is to provide a kind of buoyancy hand-held tool, can improve the torsion tolerances of this hand-held tool, thereby avoids damaging, and improves the service life of buoyancy hand-held tool.
For achieving the above object, the invention discloses a kind of raising in conjunction with the buoyancy hand-held tool of effect, include:
One handle; The air chamber of one sealing is located in this handle;
One rod member, the one end is a drive end, and the other end is an inserted terminal, this inserted terminal of this rod member is inserted in this handle from this handle one end; It is characterized in that this hand-held tool more includes:
One sleeve pipe is located in the air chamber of this handle, and makes this air chamber still have certain volume; This sleeve pipe vertically along this handle vertically;
The inserted terminal of this rod member stretches to this air chamber, and is inserted in this sleeve pipe.
Wherein, more include the rib of predetermined number, be located in this air chamber, and connect this air chamber internal face and this sleeve pipe outer peripheral face.
Wherein: the inserted terminal of this rod member is established an engaging piece, and bridle joint is in this sleeve pipe.
Also disclose a kind of raising in conjunction with the buoyancy hand-held tool of effect, included:
One handle; The air chamber of one sealing is located in this handle;
One rod member, the one end is a drive end, and the other end is an inserted terminal, this rod member is inserted in this handle from this handle one end with this inserted terminal; It is characterized in that:
This handle comprises a upper semi-body and a lower semi-body, and this two halfbody is the configuration of symmetry, and combination in opposite directions up and down; The space on one that sets to the concave, the bottom surface of this upper semi-body; One upper tube half portion is located on this in space; The end face of this lower semi-body space that sets to the concave; One lower tube half portion is located in this time space; After this two halfbody mutually combined, this upper and lower space formed this air chamber; This upper and lower semicanal portion is combined into the sleeve pipe of a hollow up and down, is positioned at this air chamber; This sleeve pipe vertically along this handle vertically;
The inserted terminal of this rod member stretches to this air chamber, and is inserted in this sleeve pipe.
Wherein, more include the rib of predetermined number, be located in this air chamber, and connect this air chamber internal face and this sleeve pipe outer peripheral face.
Wherein, more include the rib of predetermined number, be located on this in space, and connect the internal face in space on this and the outer peripheral face of this upper tube half portion; And the rib of predetermined number, be located in this time space, and connect the internal face in this time space and the outer peripheral face of this lower tube half portion.
Wherein: the interface of this upper semi-body and this lower semi-body more mutually combines with described rib.
Wherein: described rib extends to the air chamber other end by this air chamber one end.
Wherein: the length that is shorter in length than this air chamber of described rib.
Wherein: the bottom surface of this upper tube half portion has a microscler indent; The end face of this lower tube half portion has a microscler indent, and this two indent is corresponding.
Wherein: the inserted terminal of this rod member is established an engaging piece, and bridle joint is in this sleeve pipe.
Also disclose a kind of raising in conjunction with the buoyancy hand-held tool of effect, included:
One handle
The air chamber of one sealing is located in this handle;
One rod member, the one end is a drive end, and the other end is an inserted terminal, this rod member is inserted in this handle from this handle one end with this inserted terminal; It is characterized in that:
This handle comprises a proterosoma and a hysterosoma, before and after this forward and backward halfbody ground in opposite directions in conjunction with and form this handle; This forward and backward halfbody mutually combines back and this air chamber is formed in this handle; One sleeve pipe is fixedly arranged in the air chamber of this handle; This sleeve pipe vertically along this handle vertically;
The inserted terminal of this rod member stretches to this air chamber, and is inserted in this sleeve pipe, with this thimble joint.
Wherein, more include the rib of predetermined number, be located in this air chamber, and connect this air chamber internal face and this sleeve pipe outer peripheral face.
Wherein: the rear end face of this proterosoma space that sets to the concave forms this air chamber.
Wherein: the front end face of this hysterosoma space that sets to the concave forms this air chamber.
Wherein: the rear end face of this proterosoma front space that sets to the concave; The front end face of this hysterosoma rear space that sets to the concave; After this two halfbody mutually combined, this forward and backward space formed this air chamber.
Wherein: establish a pipe portion in this space of this proterosoma, this pipe portion forms this sleeve pipe.
Wherein: establish a pipe portion in this space of this hysterosoma, this pipe portion forms this sleeve pipe.
Wherein: a front tube portion, be located in this front space; One back pipe portion is located in this rear space; This two halfbody in conjunction with after, connect into this sleeve pipe before and after this forward and backward pipe portion.
Wherein, more include the rib of predetermined number, be located in this air chamber, connect the internal face of this air chamber and the outer peripheral face of this sleeve pipe.
Wherein: be provided with the rib of predetermined number in the front space of this proterosoma, described rib connects the internal face of this front space and the outer peripheral face of this front tube portion; Also be provided with the rib of predetermined number in the rear space of this hysterosoma, be connected in the internal face of this rear space and the outer peripheral face of this back pipe portion; The free ora terminalis of the rib of this two halfbody mutually combines.
Wherein: described rib extends to the air chamber other end by this air chamber one end.
Wherein: the length that is shorter in length than this air chamber of described rib.
Wherein: the inserted terminal of this rod member is established an engaging piece, and bridle joint is in this sleeve pipe.
By said structure, structure of the present invention is strengthened the structure that is connected between handle and rod member, is possessing the design of air chamber, improves this two bond strength simultaneously, makes this craft prodigiosin bear higher torsion, the enhancement result of use, thus realize purpose of the present invention.
Be the effect that makes the auditor further understand purpose of the present invention, feature and to reach, below lift the present invention's eight preferred embodiments now, and after cooperating diagram to be described in more detail in.
Description of drawings
The profile of the known a kind of buoyancy hand-held tool of Fig. 1.
The rear perspective view of Fig. 2 a preferred embodiment of the present invention.
Fig. 3 is the partial cross-sectional perspective view of Fig. 2.
Fig. 4 is the profile of the 4-4 hatching line of Fig. 2.
Fig. 5 is the profile of the 5-5 hatching line of Fig. 4.
The profile of Fig. 6 the present invention second preferred embodiment.
The profile of Fig. 7 the present invention the 3rd preferred embodiment.
The profile of Fig. 8 the present invention the 4th preferred embodiment.
The longitudinal sectional drawing of Fig. 9 the present invention the 5th preferred embodiment.
Figure 10 is the profile of the 10-10 hatching line of Fig. 9.
Figure 11 is the profile of the 11-11 hatching line of Fig. 9.
The exploded perspective view of the handle of Figure 12 the present invention the 6th preferred embodiment.
The profile of Figure 13 the present invention the 6th preferred embodiment.
Figure 14 is the profile of the 14-14 hatching line of Figure 13.
The longitudinal sectional drawing of Figure 15 the present invention the 7th preferred embodiment.
The longitudinal sectional drawing of Figure 16 the present invention the 8th preferred embodiment.
The specific embodiment
The present invention can be applicable to various hand-held tool with handle, for example: screwdriver, spanner etc.The graphic of present embodiment is illustration with the screwdriver.See also Fig. 2, Fig. 3, the buoyancy hand-held tool 20 that a preferred embodiment of the present invention provides includes: a handle 30 and a rod member 40, these handle 30 inside are provided with the hollow gas chamber 32 of a sealing.These rod member 40 1 ends are a drive end 42, and in order to driving workpiece (for example screw), and the other end is an inserted terminal 44, are inserted in the jack 311 at solid position 31 of this handle front end, as Fig. 5.
Major technique of the present invention is characterised in that: more be provided with a sleeve pipe 34 in the air chamber 32 of this handle 30, to shown in Figure 5, the vertical of sleeve pipe establishes along the vertical of handle, and is right against this jack 311 as Fig. 3.After this sleeve pipe 34 was set, this air chamber 32 still had certain volume.And the inserted terminal 44 of rod member 40 stretches to air chamber 32 more backward, and is inserted in the sleeve pipe 34.So, one side makes handle still have air chamber 32 and possesses buoyancy, and on the other hand, rod member is connected with handle with long length, can improve the bond strength of rod member and handle, and increases the torsion that hand-held tool can bear.
The side face of this inserted terminal 44 can be produced an engaging piece that is polygonal or concaveconvex structure, to increase the engagement of inserted terminal and sleeve pipe.The engaging piece 46 of present embodiment is two raised lines, as Fig. 3, Fig. 4, meshes with the sleeve pipe internal perisporium.
In addition, the handle 30 of present embodiment is made of a upper semi-body 35 and a lower semi-body 36, and this two halfbody is the configuration of symmetry, the general semicircular in shape of its section configuration, and affixed with high frequency or suitable mode.The inside of upper semi-body 35 has space 351 on, and space 361 is established in lower semi-body 36 inside; One upper tube half portion 341 is located on this in space 351, and its bottom surface has a microscler indent 343, as Fig. 4; One lower tube half portion 342 is located at this time space 361, and its end face also has a microscler indent 344.When this two halfbody 35,36 in conjunction with the time, this upper and lower space 351,361 constitutes the air chamber 32 of these sealings; The periphery of this two semicanals portion 341,342 mutually combines up and down and constitutes this sleeve pipe 34.
Some ribs 37,38 are located in this air chamber 32, connect the internal face of this sleeve pipe 34 and this air chamber, make this sleeve pipe 34 obtain to support.Rib 37 is located in the last space 351 of this upper semi-body 35, connects this upper tube half portion 341 and the internal face in space on this; In like manner, rib 38 is located in the following space 361 of lower semi-body 36, connects the internal face in this lower tube half portion 342 and this time space.As shown in Figure 3, the sleeve pipe 34 of present embodiment extends to the rear end by the front end of this air chamber 32; These ribs 37,38 extend to the rear end by the front end of air chamber equally.
In addition, see also Fig. 4, present embodiment makes two rib 37a be positioned at the faying face of upper semi-body 35; And two rib 38a are positioned at the faying face of lower semi-body 36, so, can make this two halfbody 35,36 have quite firm associativity by the combination of these ribs 37a, 38a.
When hand-held tool of the present invention 20 uses, if fall in the water accidentally, this air chamber 32 make handle 30 still can float on the water, can not the Shen entry in, the user can search and take easily.In addition, structure of the present invention is strengthened the structure that is connected of handle 30 and 40 of rod members, is possessing the design of air chamber, improves this simultaneously and makes this two bond strength of 30,40, makes this craft prodigiosin bear higher torsion, the enhancement result of use.
On cross-section structure, the rib 37,38 of the first embodiment of the present invention is cross.The embodiment of Fig. 6 to Fig. 8 shows that the rib in the handle presents different kenels, and these embodiment also are applicable to the 5th to the 8th preferred embodiment hereinafter described.
In second embodiment of Fig. 6, be provided with three ribs 37 ', 38 ' in the handle 30 ', be located at respectively in space 351 ' or the following space 361 ', can T-shaped or Y shape arrangement.In the 3rd embodiment of Fig. 7, handle 30 " rib 37 ", 38 " then arrange and be X-shaped, be located at upper and lower space 351 respectively ", 361 " in; In the embodiment of Fig. 8, handle 30 " ' upper and lower space 351 " ', 361 " ' then be respectively equipped with most ribs 37 " ' and 38 " '.
See also Fig. 9 to Figure 11, the 5th preferred embodiment of hand-held tool 50 of the present invention, this handle 60 is made of upper and lower semi-body 65,66, handle inside has an air chamber 62 and a sleeve pipe 64, this air chamber 62 by space 651 on one and once space 661 constitute; 64 of this sleeve pipes are made of a upper tube half portion 641 and a lower tube half portion 642.Some ribs 67,68 are located in this air chamber, connect internal face and this sleeve pipe 64 of this air chamber.Wherein, these ribs 67,68 the length that is shorter in length than sleeve pipe 64, that is rib does not extend to the other end by air chamber 62 1 ends, so, can make air chamber 62 more complete, as Figure 11, increases the volume of air chamber.Preferably, be as the criterion with Fig. 9, these ribs are connected in the sleeve pipe centre.The inserted terminal 74 of rod member 70 is inserted in the sleeve pipe 64 of handle equally.
The hand-held tool 80 of Figure 12 to Figure 14 the 6th preferred embodiment of the present invention has a handle 90 and a rod member 100 equally.
This handle 90 is by a proterosoma 95 and ground, a hysterosoma 96 front and back be combined into, and the rear end face of this proterosoma 95 is arranged with a front space 951 toward in; One front tube portion 941 and some ribs 97 are located in this front space 951, and the length of the length of these ribs 97 and this front space 951 connects the internal face of this front tube portion and this front space together.The front end face of this hysterosoma 96 then is arranged with a rear space 961 toward in; One back pipe portion 942 and some ribs 98 are located in this rear space 961, and the length of these ribs is identical with rear space.In the interface of this two halfbody, the free ora terminalis 901 of forward and backward halfbody combines; The free ora terminalis 902 of these ribs combines; The free ora terminalis 903 of this two pipes portion also combines, and can make handle 90 that good binding is arranged.
After this two halfbody 95,96 combinations, this two space 951,961 makes the handle 90 inner airtight air chambers 92 that form; These two pipes portion, 941,942 tandem dockings form a sleeve pipe 94.The jack 912 of the inserted terminal 104 of rod member 100 from the solid position 91 of handle front end is inserted into air chamber 92 backward and is plugged in the sleeve pipe 94.
The 7th preferred embodiment of Figure 15 hand-held tool 110 of the present invention, its structure and the 6th preferred embodiment are identical, difference be in: the length of the rib 127 of the proterosoma 125 of handle 120 is short than the length of front tube portion 1241; Same, also the length of back pipe portion 1242 is short for the length of the rib 128 of hysterosoma 126.By this, the entire length of rib is shorter than the length of sleeve pipe 124.Preferably, these ribs are positioned at air chamber 122 centre.
The 8th preferred embodiment of Figure 16 hand-held tool 140 of the present invention, wherein: the forward and backward halfbody 155 of handle 150,156 forward and backward pipe portion 1541,1542 constitute a sleeve pipe 154; Present embodiment only arranges rib 158 joint sleeves in these hysterosoma 156 inside, and proterosoma inside is not provided with rib.Otherwise, also can only rib be set in order to joint sleeve in proterosoma inside; And do not establish rib in the hysterosoma.
The present invention makes the manual prodigiosin of buoyancy bear higher operation torsion, promotes its usability.On take off all embodiment only in order to the present invention to be described, and unrestricted.
Claims (21)
1. a raising includes in conjunction with the buoyancy hand-held tool of effect:
One handle; The air chamber of one sealing is located in this handle;
One rod member, the one end is a drive end, and the other end is an inserted terminal, this rod member is inserted in this handle from this handle one end with this inserted terminal; It is characterized in that:
This handle comprises a upper semi-body and a lower semi-body, and this upper and lower semi-body is the configuration of symmetry, and combination in opposite directions up and down; The space on one that sets to the concave, the bottom surface of this upper semi-body; One upper tube half portion is located on this in space; The end face of this lower semi-body space that sets to the concave; One lower tube half portion is located in this time space; After this upper and lower semi-body mutually combined, this upper and lower space formed this air chamber; This upper and lower semicanal portion is combined into the sleeve pipe of a hollow up and down, is positioned at this air chamber; This sleeve pipe vertically along this handle vertically;
The inserted terminal of this rod member stretches to this air chamber, and is inserted in this sleeve pipe.
2. buoyancy hand-held tool as claimed in claim 1 is characterized in that, more includes the rib of predetermined number, is located in this air chamber, and connects this air chamber internal face and this sleeve pipe outer peripheral face.
3. buoyancy hand-held tool as claimed in claim 1 is characterized in that, more includes the rib of predetermined number, is located on this in space, and connects the internal face in space on this and the outer peripheral face of this upper tube half portion; And the rib of predetermined number, be located in this time space, and connect the internal face in this time space and the outer peripheral face of this lower tube half portion.
4. buoyancy hand-held tool as claimed in claim 3, it is characterized in that: the interface of this upper semi-body and this lower semi-body more mutually combines with rib.
5. as claim 2 or 3 or 4 described buoyancy hand-held tools, it is characterized in that: described rib extends to the air chamber other end by this air chamber one end.
6. as claim 2 or 3 or 4 described buoyancy hand-held tools, it is characterized in that: the length that is shorter in length than this air chamber of described rib.
7. as claim 1 or 2 or 3 or 4 described buoyancy hand-held tools, it is characterized in that: the bottom surface of this upper tube half portion has a microscler indent; The end face of this lower tube half portion has a microscler indent, and the indent of this upper and lower semicanal portion is corresponding.
8. as claim 1 or 2 or 3 or 4 described buoyancy hand-held tools, it is characterized in that: the inserted terminal of this rod member is established an engaging piece, and bridle joint is in this sleeve pipe.
9. a raising includes in conjunction with the buoyancy hand-held tool of effect:
One handle; The air chamber of one sealing is located in this handle;
One rod member, the one end is a drive end, and the other end is an inserted terminal, this rod member is inserted in this handle from this handle one end with this inserted terminal; It is characterized in that:
This handle comprises a proterosoma and a hysterosoma, before and after this forward and backward halfbody ground in opposite directions in conjunction with and form this handle; This forward and backward halfbody mutually combines back and this air chamber is formed in this handle; One sleeve pipe is fixedly arranged in the air chamber of this handle; This sleeve pipe vertically along this handle vertically;
The inserted terminal of this rod member stretches to this air chamber, and is inserted in this sleeve pipe, with this thimble joint.
10. buoyancy hand-held tool as claimed in claim 9 is characterized in that, more includes the rib of predetermined number, is located in this air chamber, and connects this air chamber internal face and this sleeve pipe outer peripheral face.
11. buoyancy hand-held tool as claimed in claim 9 is characterized in that: the rear end face of this proterosoma space that sets to the concave forms this air chamber.
12. buoyancy hand-held tool as claimed in claim 9 is characterized in that: the front end face of this hysterosoma space that sets to the concave forms this air chamber.
13. buoyancy hand-held tool as claimed in claim 9 is characterized in that: the rear end face of this proterosoma front space that sets to the concave; The front end face of this hysterosoma rear space that sets to the concave; After this forward and backward halfbody mutually combined, this forward and backward space formed this air chamber.
14. as claim 11 or 13 described buoyancy hand-held tools, it is characterized in that: establish a pipe portion in this space of this proterosoma, this pipe portion forms this sleeve pipe.
15. as claim 12 or 13 described buoyancy hand-held tools, it is characterized in that: establish a pipe portion in this space of this hysterosoma, this pipe portion forms this sleeve pipe.
16. buoyancy hand-held tool as claimed in claim 13 is characterized in that: a front tube portion, be located in this front space; One back pipe portion is located in this rear space; Should before, the Hou halfbody in conjunction with after, connect into this sleeve pipe before and after this forward and backward pipe portion.
17. buoyancy hand-held tool as claimed in claim 13 is characterized in that, more includes the rib of predetermined number, is located in this air chamber, connects the internal face of this air chamber and the outer peripheral face of this sleeve pipe.
18. buoyancy hand-held tool as claimed in claim 16 is characterized in that: be provided with the rib of predetermined number in the front space of this proterosoma, described rib connects the internal face of this front space and the outer peripheral face of this front tube portion; Also be provided with the rib of predetermined number in the rear space of this hysterosoma, be connected in the internal face of this rear space and the outer peripheral face of this back pipe portion; This is preceding, the free ora terminalis of the rib of Hou halfbody mutually combines.
19. as claim 10 or 17 or 18 described buoyancy hand-held tools, it is characterized in that: described rib extends to the air chamber other end by this air chamber one end.
20. as claim 10 or 17 or 18 described buoyancy hand-held tools, it is characterized in that: the length that is shorter in length than this air chamber of described rib.
21. as claim 9 or 10 or 11 or 12 or 13 or 16 or 17 or 18 described buoyancy hand-held tools, it is characterized in that: the inserted terminal of this rod member is established an engaging piece, bridle joint is in this sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010179930 CN102259330B (en) | 2010-05-24 | 2010-05-24 | Buoyancy hand tool capable of improving combining effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010179930 CN102259330B (en) | 2010-05-24 | 2010-05-24 | Buoyancy hand tool capable of improving combining effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102259330A CN102259330A (en) | 2011-11-30 |
| CN102259330B true CN102259330B (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010179930 Expired - Fee Related CN102259330B (en) | 2010-05-24 | 2010-05-24 | Buoyancy hand tool capable of improving combining effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102259330B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262977Y (en) * | 1996-08-29 | 1997-09-24 | 刘国珍 | Bidirectional telescopic screwdriver operated by rotating handle |
| US6901826B2 (en) * | 2003-09-30 | 2005-06-07 | Chin-Tan Huang | Screwdriver |
| DE202006012027U1 (en) * | 2006-08-05 | 2006-12-07 | Lee, Yu-Jyun | Floating hand tool comprises of shank which has inner wall with axial through hole whereby tool tip is fixed at first end of shank and has end part which has connecting bar which is inserted in through hole of shank to form closed chamber |
| GB2452937A (en) * | 2007-09-20 | 2009-03-25 | Chih-Ching Hsieh | A Buoyant Hand Tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090077754A1 (en) * | 2007-09-24 | 2009-03-26 | Chih-Ching Hsieh | Buoyant hand tool |
-
2010
- 2010-05-24 CN CN 201010179930 patent/CN102259330B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262977Y (en) * | 1996-08-29 | 1997-09-24 | 刘国珍 | Bidirectional telescopic screwdriver operated by rotating handle |
| US6901826B2 (en) * | 2003-09-30 | 2005-06-07 | Chin-Tan Huang | Screwdriver |
| DE202006012027U1 (en) * | 2006-08-05 | 2006-12-07 | Lee, Yu-Jyun | Floating hand tool comprises of shank which has inner wall with axial through hole whereby tool tip is fixed at first end of shank and has end part which has connecting bar which is inserted in through hole of shank to form closed chamber |
| GB2452937A (en) * | 2007-09-20 | 2009-03-25 | Chih-Ching Hsieh | A Buoyant Hand Tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102259330A (en) | 2011-11-30 |
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Granted publication date: 20130904 Termination date: 20190524 |