KR101672264B1 - a blasting nozzle and a blasting apparatus including the same - Google Patents

a blasting nozzle and a blasting apparatus including the same Download PDF

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Publication number
KR101672264B1
KR101672264B1 KR1020150070935A KR20150070935A KR101672264B1 KR 101672264 B1 KR101672264 B1 KR 101672264B1 KR 1020150070935 A KR1020150070935 A KR 1020150070935A KR 20150070935 A KR20150070935 A KR 20150070935A KR 101672264 B1 KR101672264 B1 KR 101672264B1
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KR
South Korea
Prior art keywords
nozzle
blasting
nozzle segments
segments
extending
Prior art date
Application number
KR1020150070935A
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Korean (ko)
Inventor
송건영
Original Assignee
삼성중공업 주식회사
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Priority to KR1020150070935A priority Critical patent/KR101672264B1/en
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Publication of KR101672264B1 publication Critical patent/KR101672264B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

A blasting nozzle and a blasting apparatus including the blasting nozzle are provided. The blasting nozzle comprises: a support including a hollow insert extending in one direction; And a plurality of nozzle segments rotatably connected to the support, wherein the plurality of nozzle segments include a plurality of extending wings extending on neighboring nozzle segments.

Description

A blasting nozzle and a blasting apparatus including the same,

And more particularly to a blasting nozzle for blasting high-pressure and high-speed abrasives into a workpiece in a ship or a building, and a blasting apparatus including the blasting nozzle.

Blasting is a method of surface treatment. It is a method of surface treatment, in which abrasives such as sand, silica particles, steel shot, etc. are strongly sprayed on the surface of the material with compressed air or water to form scales, rust, Film) and the like are removed.

For example, various types of blasting are used to remove rust from steels at a shipyard. Sand blasting, which is one of the methods, connects the air from the operating device to move the air and garnet contents on the hose and spray it from the end side to remove the rust do.

At this time, the blast nozzle is connected to the 25A hose, and the abrasive can be ejected through the ejection port of the blasting nozzle. The blasting nozzle is made of a cemented carbide, and the inner diameter of the blasting nozzle is narrowed from 20 Φ to 6 to 8 Φ. Due to this geometrical feature, the straightness and speed of the garnet passing through the blasting nozzle can be controlled compared to the garnet inside the blasting hose.

Public Utility Model Publication No. 20-1998-043856

Particularly, the abrasive material is ejected at high pressure and high speed through the blast nozzle.

For example, when a blasting operation is performed inside a ship block, the operator has to hose a vessel having a length of 50 to 100 m from the blasting feeder (for example, a sand blasting device) to enter the inside of the ship block, .

Generally, the length of the hose is considerably long since the distance from the inside of the block to the blasting feeder is considerably long (for example, 50 to 100 m), and even if the blast feeder is stopped in case of emergency, the abrasive contained in the hose of 50 ~ It is sprayed for about 10 to 20 seconds by the pressure of the remaining compressed air, thereby causing safety problems.

That is, when the operator performing the blasting operation misses the hose and the blasting nozzle, the direction of ejection of the abrasive material of the blasting nozzle can be randomly swung by the abrasive material jetted at high speed and high pressure. In this case, A safety problem that can not be sufficiently protected from the abrasive may occur.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a blasting nozzle and a blasting apparatus including the blasting nozzle for ensuring the safety of the operator even if the operator misses the blasting nozzle during the blasting operation.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a blasting nozzle comprising: a support having a hollow insertion portion extending in one direction; And a plurality of nozzle segments rotatably connected to the support, wherein the plurality of nozzle segments include a plurality of extending wings extending on neighboring nozzle segments.

The plurality of nozzle segments may further include a plurality of nozzle bodies, a plurality of protrusions protruding from one side of the plurality of nozzle bodies, and a plurality of through-holes formed on the other side of the plurality of nozzle bodies.

The support base may further include a support body coupled to the hollow insert at one side and a plurality of hinge pins passing through the plurality of through holes to couple to the support body, A plurality of annular projections are formed.

The plurality of hinge pins are arranged in a tangential direction with respect to a circular cross section of the support body, and the plurality of nozzle segments are rotated about the plurality of hinge pins.

The inner diameter of the hollow insertion portion is larger than the inner diameter of the discharge opening formed by the combination of the plurality of nozzle pieces.

Further, in the released state, the plurality of nozzle segments rotate with respect to the support and are opened relative to each other, and the diameter of the opening formed by the plurality of nozzle segments formed is larger than the inner diameter of the hollow narrow insertion portion.

According to another aspect of the present invention, there is provided a blasting apparatus comprising: a blasting nozzle; A hose into which the hollow insertion portion of the blasting nozzle is inserted; And an abrasive supply source for supplying abrasives to the hose and the blasting nozzle, wherein the blasting nozzle comprises: a support including a hollow insert extending in one direction; And a plurality of nozzle segments rotatably connected to the support, wherein the plurality of nozzle segments include a plurality of extension wings extending on neighboring nozzle segments.

In addition, the abrasive supply source includes a pressure sensing portion for sensing the pressure of the supplied abrasive.

Further, the abrasive supply source stops supplying the abrasive material when the pressure sensing part detects that the pressure of the supplied abrasive material is reduced below a certain threshold value.

Other specific details of the invention are included in the detailed description and drawings.

1 is a perspective view illustrating a blasting nozzle and a hose connected thereto according to an embodiment of the present invention.
2 is a front view of a blasting nozzle according to an embodiment of the present invention, viewed from the front of the nozzle.
3 is a perspective view of a cross section of the blasting nozzle and the hose taken along line III-III 'of FIG. 1;
4 is a free body diagram showing the sum of external forces acting on a second nozzle segment in a combined state of a blasting nozzle according to an embodiment of the present invention.
FIG. 5 is an exemplary view showing a pressure acting on a third nozzle segment of a blasting nozzle according to an embodiment of the present invention, and a first force according to the pressure.
6 is a perspective view illustrating a released state of a blasting nozzle according to an embodiment of the present invention.
7 is a front view of the blast nozzle according to an embodiment of the present invention when viewed from the front of the blasting nozzle.
FIG. 8 is a perspective view of a cross section of the blasting nozzle and the hose 200, which are disassembled yarns, along the line VIII-VIII 'of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Also, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It should be understood that the terms comprising and / or comprising the terms used in the specification do not exclude the presence or addition of one or more other elements, steps and / or operations in addition to the stated elements, steps and / use. And "and / or" include each and any combination of one or more of the mentioned items.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view illustrating a blasting nozzle and a hose 200 connected thereto according to an embodiment of the present invention.

1, a blasting nozzle according to an exemplary embodiment of the present invention includes a support base 160 connected to a hose 200 and a plurality of nozzle blades 110, 120, 130, and 130 rotatably connected to a support base 160, 140).

1, the plurality of nozzle segments 110, 120, 130, and 140 include a first nozzle segment 110, a second nozzle segment 120, a third nozzle segment 130, Section 140, that is, composed of four nozzle segments. Hereinafter, in the description of one embodiment of the present invention to be described later with reference to FIGS. 2 to 8, it is similarly exemplified that a plurality of nozzle segments 110, 120, 130, and 140 are composed of four nozzle segments. However, the present invention is not limited thereto. Although not shown, in alternate embodiments of the present invention, the blasting nozzle may be configured to have two, three, or more than five nozzle segments.

2 and 3, the detailed structure of the blasting nozzle according to an embodiment of the present invention will be described in detail.

2 is a front view of a blasting nozzle according to an embodiment of the present invention, viewed from the front of the nozzle.

3 is a perspective view of a cross section of the blasting nozzle and the hose 200 taken along line III-III 'of FIG.

2 and 3, the support 160 may include a hollow insert 162 extending in one direction (an inward direction of the hose 200). A plurality of annular protrusions may be formed around the outer periphery of the hollow insertion portion 162. The hollow insert 162 may be inserted into the hose 200 and a plurality of annular projections may be formed between the inner surface of the hose 200 and the outer surface of the hollow insert 162, So that the support base 160 including the hollow insertion portion 162 and the blast nozzle 100 including the support base 160 can be firmly coupled to the hose 200.

3, the plurality of annular projections may be formed in the form of a plurality of threads having a steep slope in the direction of being withdrawn from the hose 200, with a gentle slope in the direction of insertion into the hose 200 . This allows the hollow insert 162 to have greater frictional force to exit the hose 200 as compared to insertion of the hollow insert 162 into the hose 200.

The abrasive can be introduced into the introduction opening 170 into the hollow insertion portion 162 while the hollow insertion portion 162 is inserted into the hose 200 and the introduced abrasive can be introduced into the introduction opening 170 And may be discharged through the discharge opening 150 formed by the plurality of nozzle segments 110, 120, 130, 140 described later.

The introduction opening 170 may have a first inner diameter, and the discharge opening 150 may have a second inner diameter. For blasting, the first inner diameter may be larger than the second inner diameter, so that the speed of the abrasive material discharged into the discharge opening 150 may be greater than the speed of the abrasive material introduced into the introduction opening 170. That is, the released abrasive may have a high pressure, a high speed and a high momentum, so that the operator can perform a smooth blasting operation.

In addition, the support base 160 may include a support base body 164 coupled to the hollow insertion portion 162 at one side. The support base 160 may be disposed to contact the free end of the hose 200 when the hollow insertion portion 162 is inserted into the hose 200, As shown in Fig.

In addition, support base 160 may include a plurality of hinge pins 166 that engage support base body 164. The support base 160 and the support base body 162 may be pivotally connected to a plurality of nozzle slices 110, 120, 130 and 140 to be described later. The pivotal connection may include a plurality of nozzle slices 110, 120, 133 and the hinge pin 166 and the support body 164 through the plurality of through openings 113,

 A plurality of nozzle segments (110, 120, 130, 140) includes a plurality of extending blades (114, 124, 134, 144) extending over a nozzle body of a plurality of nozzle bodies and adjacent nozzle segments, May be rotatably connected to the support base 160.

More specifically, the first nozzle segment 110 includes a first nozzle body 112, a first nozzle body 112 extending from the first nozzle body 112 over the second nozzle body 122 of the neighboring second nozzle segment 120, A first protrusion 116 protruding from one side of the first nozzle body 112 and a first through hole 113 formed on the other side of the first nozzle body 112. The first protrusion 116 protrudes from one side of the first nozzle body 112,

The second nozzle segment to the fourth nozzle segment 120, 130, and 140 may all have substantially the same shape as the first nozzle segment 110. Thus, like the first nozzle segment 110, the second nozzle segment to the fourth nozzle segment 120, 130, 140 are formed by the second nozzle body to the fourth nozzle body 122, 132, 142, (Not shown), a third penetrating opening 133, and a fourth penetrating opening 144 (not shown), the second through fourth through vents 124, 134, 144, the second through fourth projections 126, 136, 146, (Not shown).

The first nozzle segment to the fourth nozzle segment 110, 120, 130, and 140 may correspond to respective shapes in which one nozzle is equally cut into four. The first to fourth projections 116, 126, 136, 146 of the first nozzle segment to the fourth nozzle segment 110, 120, 130, 140 are in close proximity to each other Or contact to form a discharge opening 150 having a first internal diameter.

The first to fourth extension vanes 114, 124, 134 and 144 extend over the nozzle body of the adjacent nozzle section, respectively, so that the contact surfaces 118, 128, 138, 148 of each nozzle body Lt; / RTI > That is, the first extension wing 114 is connected to the contact surface 128 of the second nozzle body, the second extension wing 124 to the contact surface 138 of the third nozzle body, the third extension wing 134 to the fourth On the contact surface 148 of the nozzle body, the fourth extension vane 144 can contact the contact surface 118 of the first nozzle body, respectively.

In addition, assuming that the blasting operation is normally performed in the combined state, the abrasive passing through the discharge opening 150 may act on the inner surface of the discharge opening 150 with a pressure P. The pressure P acting on the inner surface of the discharge opening 150 according to Pascal's principle can be seen everywhere and the first to fourth protrusions 116, 126, 136, 146 may have the same pressure acting on the inner wall.

The first to fourth through openings are formed on the other side of the first to fourth nozzle bodies 112, 122, 132, 142, which are opposite to the first to fourth projections 116, 126, 136, And can be pivotally coupled, i.e. hinged, to the support body 164 by four hinge pins 166, respectively.

That is, the first nozzle segment to the fourth nozzle segment 110, 120, 130, 140 may be pivotable about respective hinge pins 166, and in one embodiment of the present invention, each hinge pin 166 May be disposed in the tangential direction of the circular cross section of the blasting nozzle or support body 164.

Accordingly, during the blasting operation, the pressure P due to the abrasive material causes the first to fourth nozzle segments 110 to 120 to be radially offset from the blast nozzle 100 or the support body 164, To rotate in the direction of the arrow. The first nozzle piece to the fourth nozzle piece 110, 120, 130, and 140 can pivot about respective hinge pins 166, The tips of the first to fourth projections 116, 126, 136, 146 of the nozzle segment to the fourth nozzle segment 110, 120, 130, 140 can be opened so as to be distant from each other.

However, when the operator firmly grasps the blasting nozzle 100 according to an embodiment of the present invention, the pressure P due to the abrasive passing through the blasting nozzle 100 is lower than that of the first nozzle segment to the fourth nozzle segment 128, 138, and 148 of the first nozzle body to the fourth nozzle body of the first nozzle body 110, 120, 130, 140 of the first nozzle body, have. That is, the second nozzle segment 120 is connected to the first extension blade 114 of the first nozzle segment 110, the third nozzle segment 130 is connected to the second extension segment 124 of the second nozzle segment 120, The fourth nozzle segment 140 is connected to the third extension wing 134 of the third nozzle segment 130 and the first nozzle segment 110 is connected to the fourth extension wing 144 of the fourth nozzle segment 140 Will act on the first force N1.

In the illustrated embodiment of the present invention, the first to fourth nozzle segments 110, 120, 130, 140 are arranged counterclockwise in a counterclockwise direction through respective extension blades 114, 124, 134, The first nozzle segment 110 is positioned in the second nozzle segment 120 of the third nozzle segment 130 and the second nozzle segment 120 of the third nozzle segment 130 Is configured to limit the rotation of the first nozzle segment 110 and the rotation of the fourth nozzle segment 140 and the fourth nozzle segment 140.

Accordingly, even if the operator applies external force equal to or greater than the first force N1 to at least one of the nozzle segments when grasping the blasting nozzle 100, the first nozzle segment to the fourth nozzle segment 110, 120, 130, The rotation may be restricted.

Further, each of the extension wings 114, 124, 134, 144 extends over the nozzle bodies 112, 122, 132, 142 of the neighboring nozzle sections, which is greater than the first force N1 So that the operator can grip each nozzle section with a small external force.

In this regard, the following will be described in more detail with reference to FIGS. 4 and 5. FIG.

4 is a free body diagram showing the sum of external forces acting on a second nozzle segment in a combined state of a blasting nozzle according to an embodiment of the present invention.

4, the pressure P due to the abrasive material passing through the discharge opening 150 can be evenly distributed and transferred to the third nozzle segment 130, which is the second extension of the second nozzle segment 120 The first force N1 may be applied to the second extension vane 124 through the entire contact surface 138 of the third nozzle body 130 in contact with the vane 124. [ However, a force acting on the entire contact surface 138 of the third nozzle body 130 will be interpreted that the first force N1 acts on the center of the surface.

4, the first force N1 can be interpreted as acting on the center of the second extension wing, and the first moment N1 acting on the moment arm having the second length L2 M1.

Next, when the operator performing the blasting operation grasps the blast nozzle to maintain the blast nozzle coalescence state, the external force N2 due to the operator's gripping acts on the tip of the second wing 124 . Thus, in the embodiment shown in FIG. 4, the external force N2 will form a second moment M2 acting on a moment arm having a first length L1.

Assuming that the first length L1 is twice the second length L2, even if the external force N2 of half the first force N1 is applied, the moment acting on the second wing will be balanced At this time, a force obtained by subtracting the external force N2 from the first force N1 will be provided from the second nozzle body 122 by the cascade of the second nozzle body of the second nozzle section and the other nozzle section.

That is, the operator can limit the rotation of the second nozzle segment 120 with only the external force N2 which is smaller than the first force N1. This is because the third nozzle segment 130, the fourth nozzle segment 140, The rotation of the first nozzle segment 110 and the rotation of the second nozzle segment 120 can be successively limited.

FIG. 5 is an exemplary view showing a pressure acting on a third nozzle segment of a blasting nozzle according to an embodiment of the present invention, and a first force according to the pressure.

5, although not shown in FIG. 5, in the illustrated embodiment, the hinge pin 166 is disposed in a direction perpendicular to the drawing of FIG. 5, so that the third nozzle segment 130 is in a horizontal direction . Therefore, the vertical component of the pressure P acting on the discharge opening 150 will be canceled due to the restriction by the hinge pin 166, and the third force due to the pressure P of the horizontal component in the figure (N3) will rotate about the hinge pin (166) of the third nozzle segment (130).

The force acting on the contact surface of the third nozzle body among the third force N3 will be decomposed by the bag, and the first force N1 may be 1/2 of the third force N3.

6 is a perspective view illustrating a released state of a blasting nozzle according to an embodiment of the present invention.

7 is a front view of the blast nozzle according to an embodiment of the present invention when viewed from the front of the blasting nozzle.

FIG. 8 is a perspective view of a cross section of the blasting nozzle and the hose 200, which are disassembled yarns, along the line VIII-VIII 'of FIG.

6 to 8, when the operator misses the blasting nozzle during the blasting operation, the gripping force acting on the blasting nozzle, i.e., the external force, can be released.

The first nozzle piece to the fourth nozzle piece 110, 120, 130, 140 are pivoted about the four hinge pins 166 by the pressure P acting on the discharge opening 150 of the blasting nozzle And the tips of the first to fourth projections 116, 126, 136, and 146 can be opened with respect to each other. In this specification, the state in which the tips of the first to fourth projections 116, 126, 136, and 146 are opened with respect to each other is referred to as a disengaged state. Since the first to fourth projections 116, 126, 136 and 146 are opened with respect to each other in the released state, the diameter of the opening formed by the first to fourth projections 116, 126, 136, It will increase toward the outside. Therefore, the abrasive passing through the first to fourth projections 116, 126, 136, 146 can be reduced in speed. Further, the abrasive material may be discharged into the gap formed between the first to fourth projections 116, 126, 136 and 146, which will further reduce the directivity and speed of the abrasive material to be discharged.

Accordingly, in the released state, the abrasive discharged from the blasting nozzle according to the embodiment of the present invention can be reduced in speed and momentum to such an extent that it is not threatened to the operator, and safety of the worker performing the blasting work is ensured .

Although not shown, the blasting apparatus according to the present invention includes a blasting nozzle 200, a hose 200 into which a blasting nozzle is inserted, and a hose 200 according to an embodiment of the present invention, . ≪ / RTI >

The abrasive supply source may include a pressure sensing part for sensing the pressure of the supplied abrasive material and when the pressure of the supplied abrasive material is sensed by the pressure sensing part to be reduced below a certain threshold value, .

That is, when the user misses the blasting nozzle according to one embodiment of the present invention during the blasting operation, the pressure acting on the supplied abrasive can be reduced, and the abrasive source can detect the abrasive and stop supplying the abrasive.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Blasting nozzle 200: Hose
110: first nozzle section 120: second nozzle section
130: third nozzle section 140: fourth nozzle section

Claims (9)

A support including a hollow insert extending in one direction; And
And a plurality of nozzle segments rotatably connected to the support member,
Wherein the plurality of nozzle segments include a plurality of extending wings extending on neighboring nozzle segments,
Wherein the plurality of nozzle segments further comprises a plurality of nozzle bodies, a plurality of protrusions protruding from one side of the plurality of nozzle bodies, and a plurality of through-holes formed on the other side of the plurality of nozzle bodies. delete The method according to claim 1,
The support base further includes a support body coupled to the hollow insert at one side and a plurality of hinge pins passing through the plurality of through holes to couple to the support body,
Wherein the hollow insertion portion has a plurality of annular projections formed on an outer periphery thereof. The method of claim 3,
Wherein the plurality of hinge pins are arranged in a tangential direction with respect to a circular cross section of the support body,
Wherein the plurality of nozzle segments are pivoted about the plurality of hinge pins. A support including a hollow insert extending in one direction; And
And a plurality of nozzle segments rotatably connected to the support member,
Wherein the plurality of nozzle segments include a plurality of extending wings extending on neighboring nozzle segments,
The inner diameter of the hollow insertion portion is larger than the inner diameter of the discharge opening formed by coalescing the plurality of nozzle pieces,
In the released state, the plurality of nozzle segments are rotated relative to the support member to be opened with respect to each other, and the diameter of the opening formed by the plurality of nozzle segments formed is larger than the inner diameter of the hollow insertion portion. delete Blasting nozzle;
A hose into which the hollow insertion portion of the blasting nozzle is inserted; And
And an abrasive supply source for supplying abrasives to the hose and the blast nozzle,
The blasting nozzle
A support including a hollow insert extending in one direction; And
And a plurality of nozzle segments rotatably connected to the support,
Wherein the plurality of nozzle segments include a plurality of extending wings extending on neighboring nozzle segments,
The abrasive supply source includes a pressure sensing portion for sensing a pressure of the supplied abrasive,
Wherein the abrasive supply source stops supply of the abrasive material when the pressure sensing part detects that the pressure of the supplied abrasive material is reduced below a certain threshold value. delete delete
KR1020150070935A 2015-05-21 2015-05-21 a blasting nozzle and a blasting apparatus including the same KR101672264B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2556104A (en) * 2016-11-21 2018-05-23 Medivance Instruments Ltd Tip for an air abrasion dental tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980043856U (en) 1996-12-26 1998-09-25 김종진 Abrasive sprayer
KR20020045361A (en) * 2000-12-08 2002-06-19 이중구 Electronic part mounting gripper
KR200309331Y1 (en) * 2003-01-13 2003-04-07 한국표준과학연구원 A Spray Nozzle Device With Cleansing Structure
JP2005212010A (en) * 2004-01-28 2005-08-11 Kyocera Corp Air blast device
KR101378979B1 (en) * 2012-06-08 2014-03-28 삼성중공업 주식회사 Blasting nozzle safety apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980043856U (en) 1996-12-26 1998-09-25 김종진 Abrasive sprayer
KR20020045361A (en) * 2000-12-08 2002-06-19 이중구 Electronic part mounting gripper
KR200309331Y1 (en) * 2003-01-13 2003-04-07 한국표준과학연구원 A Spray Nozzle Device With Cleansing Structure
JP2005212010A (en) * 2004-01-28 2005-08-11 Kyocera Corp Air blast device
KR101378979B1 (en) * 2012-06-08 2014-03-28 삼성중공업 주식회사 Blasting nozzle safety apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2556104A (en) * 2016-11-21 2018-05-23 Medivance Instruments Ltd Tip for an air abrasion dental tool
GB2556104B (en) * 2016-11-21 2019-05-01 Medivance Instruments Ltd Tip for an air abrasion dental tool

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