US20220127812A1 - Apparatus and method for fastening a composite pole to the ground - Google Patents

Apparatus and method for fastening a composite pole to the ground Download PDF

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Publication number
US20220127812A1
US20220127812A1 US17/571,057 US202217571057A US2022127812A1 US 20220127812 A1 US20220127812 A1 US 20220127812A1 US 202217571057 A US202217571057 A US 202217571057A US 2022127812 A1 US2022127812 A1 US 2022127812A1
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United States
Prior art keywords
fastening element
ground
composite pole
fastening
upper portion
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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.)
Abandoned
Application number
US17/571,057
Inventor
Ole Gunnar Fjelde
Torbjørn Fjelde
Sigurd Håbakk
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Comrod AS
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Comrod AS
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Publication date
Application filed by Comrod AS filed Critical Comrod AS
Priority to US17/571,057 priority Critical patent/US20220127812A1/en
Assigned to COMROD AS reassignment COMROD AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HÅBAKK, Sigurd, FJELDE, Torbjørn, FJELDE, OLE GUNNAR
Publication of US20220127812A1 publication Critical patent/US20220127812A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2207—Sockets or holders for poles or posts not used
    • E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
    • E04H12/223—Sockets or holders for poles or posts not used driven into the ground with movable anchoring elements; with separately driven anchor rods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2207—Sockets or holders for poles or posts not used
    • E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/673—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for holding sign posts or the like
    • E01F9/685—Subsoil means, e.g. foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2269—Mounting poles or posts to the holder in a socket
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2276—Clamping poles or posts on a stub
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials

Definitions

  • This invention relates to an apparatus for fastening a hollow composite pole to the ground where a slit formed opening is present in the ground.
  • the invention also relates to a method for fastening a hollow composite pole to the ground.
  • the column may be made from concrete and having reinforcement that extends into the ground.
  • the composite pole may be inserted over the column If the column is made from concrete, it is necessary to bring the concrete to the position of the column often by use of a helicopter, or make concrete at the position of the column. Both methods comprises extra costs and work.
  • WO2004/101914 discloses a hollow pole that is drilled into a slit the ground.
  • the invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art, or at least provide a useful alternative to prior art.
  • the invention concerns having a slit-formed opening, preferably circular, in the ground, where a fastening element is positioned in the slit-formed opening.
  • the fastening element has a conical upper portion above the ground.
  • a hollow composite pole has a complementary conical inner portion at its lower end, and is positioned on and abutting the fastening element.
  • hollow means that the composite pole must have an inner opening, at least in the portion that is moved over the fastening element.
  • the slit formed opening may be circular and formed by drilling or hammering a body into the ground.
  • the fastening element may be equipped with drill elements at its lower end portion to enable the fastening element to be used as a drill.
  • the drill elements may comprise metal or ceramic material or combinations thereof.
  • the invention relates more particularly to a method for fastening a hollow composite pole for overhead power lines to the ground in accordance with claim 6 .
  • the method comprises fixing the fastening element to the ground, for instance by adhesive or a concrete based material.
  • the method may comprise making the slit formed opening by drilling into the ground.
  • the method may comprise making the slit formed opening by hammering the fastening element into the ground.
  • the method comprises providing the lower end portion of the fastening element with drill elements and drilling the fastening element into the ground.
  • the fastening element may be made from composite material or metal or combinations thereof.
  • the material on the inner side of the slit may be at least partly removed.
  • frost in the ground When drilling in soil or march, it may be advantageous to have frost in the ground to avoid movement in the ground during drilling.
  • Tests show that the drill or the fastening element must be aligned with the vertical axes prior to being moved into the ground.
  • the apparatus and method according to invention solves the problem of fastening a hollow composite pole to the ground in a relatively simple and cost effective way.
  • FIG. 1 shows a vertical section of a drill and a power drill during drilling of a slit formed opening in the ground according to the invention
  • FIG. 2 shows a vertical section of a composite pole that has been moved into the slit formed opening that was drilled by use of the drill in FIG. 1 ;
  • FIG. 3 shows an embodiment where a fastening element has been moved into the slit formed opening that is drilled by the use of the drill shown in FIG. 1 , and where the fastening element is fixed to the composite mast;
  • FIG. 4 shows another embodiment where the fastening element, at its lower portion, is equipped with drill bodies:
  • FIG. 5 shows a section IV-IV in FIG. 4 ;
  • FIG. 6 shows in a larger scale a segment V-V in FIG. 5 of the lower portion of the fastening element and a drill body.
  • the reference numeral 1 denotes a drill that by the help of a power drill 2 is under displacement into the ground 4 .
  • the ground 4 may constitute for example rock, soil, or march, alternatively combination thereof.
  • the power drill 2 is typically aligned and is fixed to the ground 4 or another suitable, not shown device. There after the power drill 2 that may be electrically or hydraulically driven, displaces the drill 1 into the ground 4 while rotating the drill 1 . Thus, a slit formed opening 6 is formed in the ground 4 . The drill 1 is then removed from the slit formed opening 6 .
  • a composite pole 8 that has been moved into the slit formed opening 6 is shown in FIG. 2 . Additional fixing of the composite pole 8 to the ground 4 may be achieved by inserting grouting, fixing compound or other material (not shown) in between the composite pole 8 and the ground 4 .
  • a sleeve formed fastening element 10 is positioned in the slit formed opening 6 . Additional fixing of the fixing element 10 to the ground 4 may be carried out as described for the composite pole 8 .
  • a composite pole 8 that is conical inside is placed about the fastening element 10 that has a conical upper portion 18 , and moved against the fastening element until abutment is established.
  • the fixing element 10 may be forced into the ground 4 by hammering.
  • the fastening element 10 is by its lower end portion 12 equipped with several drill elements 14 .
  • the section IV-IV in FIG. 5 shows a possible distribution of the drill elements 14 about the centre axis 16 of the fastening element 10 .
  • the drill elements may be made from material from the fastening element 10 or constitute other materials that is fixed to the fastening element 10 .
  • a typical drill element 14 is shown in FIG. 6 where the drill element 14 that constitutes hard metal, is braced to the in use lower end portion lower end portion 12 of the fixing element 10 .
  • the fixing element 10 shown in FIG. 4 is shown in two parts where in use an upper portion 18 that is fixed to the composite pole 8 is fixed to the in use lower portion 22 of the fixing element 10 by a flange connection 20 .
  • the lower portion 22 is here drilled into the ground 4 .

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Foundations (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The invention relates to a fastening element for fastening a hollow composite pole to the ground at a location where a slit-formed opening is present in the ground, wherein the fastening element has a lower end portion that is configured for being positioned in the slit-formed opening, wherein a conical portion of the composite pole is abutting a conical upper portion of the fastening element.

Description

    CROSS REFERENCE
  • This application is a continuation of U.S. patent application Ser. No. 15/998,896, filed Aug. 16, 2018, which is a U.S. national stage of International Application PCT/NO2017/050040, filed Feb. 16, 2017, which international application was published on Aug. 24, 2017, as International Publication WO 2017/142419 in the English language. The International Application claims priority of Norwegian Patent Application No. 20160270, filed Feb. 16, 2016. The international application and Norwegian application are both incorporated herein by reference, in entirety.
    • FIELD OF THE INVENTION
  • This invention relates to an apparatus for fastening a hollow composite pole to the ground where a slit formed opening is present in the ground. The invention also relates to a method for fastening a hollow composite pole to the ground.
    • BACKGROUND OF THE INVENTION
  • It is known to fasten composite poles in the ground by excavating a recess, and thereafter positioning the composite pole in the recess and fill in around the pole. Regarding poles for overhead power lines, such a method will often involve relatively large environmental damage, particularly when a recess is made in rock. When fastening poles by use of said method, frost damage may occur due insufficient draining.
  • It is also known to mount a composite pole to a column raised from the ground. The column may be made from concrete and having reinforcement that extends into the ground. The composite pole may be inserted over the column If the column is made from concrete, it is necessary to bring the concrete to the position of the column often by use of a helicopter, or make concrete at the position of the column. Both methods comprises extra costs and work.
  • WO2004/101914 discloses a hollow pole that is drilled into a slit the ground.
  • Documents EP1911912A2, WO2004/101914A1, GB2444411 and GB2429229A show other solutions from the prior art.
    • SUMMARY OF THE INVENTION
  • The invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art, or at least provide a useful alternative to prior art.
  • The object is achieved through features, which are specified in the description below and in the claims that follow.
  • The invention is defined by the independent patent claims. The dependent claims define advantageous embodiments of the invention.
  • The invention concerns having a slit-formed opening, preferably circular, in the ground, where a fastening element is positioned in the slit-formed opening. The fastening element has a conical upper portion above the ground. A hollow composite pole, has a complementary conical inner portion at its lower end, and is positioned on and abutting the fastening element.
  • By hollow means that the composite pole must have an inner opening, at least in the portion that is moved over the fastening element.
  • The slit formed opening may be circular and formed by drilling or hammering a body into the ground.
  • The fastening element may be equipped with drill elements at its lower end portion to enable the fastening element to be used as a drill.
  • The drill elements may comprise metal or ceramic material or combinations thereof.
  • In a second aspect the invention relates more particularly to a method for fastening a hollow composite pole for overhead power lines to the ground in accordance with claim 6.
  • The method comprises fixing the fastening element to the ground, for instance by adhesive or a concrete based material.
  • The method may comprise making the slit formed opening by drilling into the ground.
  • The method may comprise making the slit formed opening by hammering the fastening element into the ground.
  • The method comprises providing the lower end portion of the fastening element with drill elements and drilling the fastening element into the ground.
  • The fastening element may be made from composite material or metal or combinations thereof.
  • If parts of the ground that is positioned on the inner side of the slit should loosen or where it is advantageous to have it removed partly or fully, the material on the inner side of the slit may be at least partly removed.
  • When drilling in soil or march, it may be advantageous to have frost in the ground to avoid movement in the ground during drilling.
  • Tests show that the drill or the fastening element must be aligned with the vertical axes prior to being moved into the ground.
  • The apparatus and method according to invention solves the problem of fastening a hollow composite pole to the ground in a relatively simple and cost effective way.
    • BRIEF INTRODUCTION OF THE DRAWINGS
  • In the following is described examples of preferred embodiments and methods illustrated in the ac-companying drawings, wherein:
  • FIG. 1 shows a vertical section of a drill and a power drill during drilling of a slit formed opening in the ground according to the invention;
  • FIG. 2 shows a vertical section of a composite pole that has been moved into the slit formed opening that was drilled by use of the drill in FIG. 1;
  • FIG. 3 shows an embodiment where a fastening element has been moved into the slit formed opening that is drilled by the use of the drill shown in FIG. 1, and where the fastening element is fixed to the composite mast;
  • FIG. 4 shows another embodiment where the fastening element, at its lower portion, is equipped with drill bodies:
  • FIG. 5 shows a section IV-IV in FIG. 4; and
  • FIG. 6 shows in a larger scale a segment V-V in FIG. 5 of the lower portion of the fastening element and a drill body.
    •  DETAILED DESCRIPTION OF THE EMBODIMENTS
  • On the drawings, the reference numeral 1 denotes a drill that by the help of a power drill 2 is under displacement into the ground 4. The ground 4 may constitute for example rock, soil, or march, alternatively combination thereof.
  • The power drill 2 is typically aligned and is fixed to the ground 4 or another suitable, not shown device. There after the power drill 2 that may be electrically or hydraulically driven, displaces the drill 1 into the ground 4 while rotating the drill 1. Thus, a slit formed opening 6 is formed in the ground 4. The drill 1 is then removed from the slit formed opening 6.
  • A composite pole 8 that has been moved into the slit formed opening 6 is shown in FIG. 2. Additional fixing of the composite pole 8 to the ground 4 may be achieved by inserting grouting, fixing compound or other material (not shown) in between the composite pole 8 and the ground 4.
  • In an embodiment of the invention, shown in FIG. 3, a sleeve formed fastening element 10 is positioned in the slit formed opening 6. Additional fixing of the fixing element 10 to the ground 4 may be carried out as described for the composite pole 8. A composite pole 8 that is conical inside is placed about the fastening element 10 that has a conical upper portion 18, and moved against the fastening element until abutment is established.
  • In some cases, as when the ground 4 mainly constitutes suitable soil, the fixing element 10 may be forced into the ground 4 by hammering.
  • In a further alternative embodiment as shown in FIG. 4, the fastening element 10 is by its lower end portion 12 equipped with several drill elements 14. The section IV-IV in FIG. 5 shows a possible distribution of the drill elements 14 about the centre axis 16 of the fastening element 10. The drill elements may be made from material from the fastening element 10 or constitute other materials that is fixed to the fastening element 10.
  • A typical drill element 14 is shown in FIG. 6 where the drill element 14 that constitutes hard metal, is braced to the in use lower end portion lower end portion 12 of the fixing element 10.
  • The fixing element 10 shown in FIG. 4 is shown in two parts where in use an upper portion 18 that is fixed to the composite pole 8 is fixed to the in use lower portion 22 of the fixing element 10 by a flange connection 20. The lower portion 22 is here drilled into the ground 4.
  • It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. Use of the verb “comprise” and its conjugations does not exclude the presence of elements or steps other than those stated in a claim. The article “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims (20)

What is claimed is:
1. A method for fastening a composite pole for overhead power lines to the ground, the method comprising:
inserting a fastening element into the ground, wherein the fastening element is configured such that insertion creates a slit-formed opening in the ground for the fastening element, and wherein the fastening element has a conical upper portion; and
lowering the composite pole over the fastening element such that a conical lower portion of the composite pole abuts the conical upper portion of the fastening element.
2. The method according to claim 1, further comprising fixing the fastening element to the ground.
3. The method according to claim 1, wherein the fastening element is inserted into the ground by drilling the fastening element into the ground.
4. The method according to claim 1, wherein the fastening element is inserted into the ground by hammering the fastening element into the ground.
5. The method according to claim 1, further comprising fixing the composite pole to the fastening element.
6. The method according to claim 5, wherein the composite pole and the fastening element each comprise a flange connection, further comprising fixing the flange connections together to fix the composite pole to the fastening element.
7. The method according to claim 5, further comprising fixing the composite pole to the fastening element such that the composite pole remains above the ground.
8. The method according to claim 1, wherein at least a portion of the fastening element remains above the ground when the conical lower portion of the composite pole abuts the conical upper portion of the fastening element.
9. The method according to claim 1, further comprising lowering the composite pole over the fastening element after the fastening element is inserted into the ground.
10. The method according to claim 1, wherein the fastening element comprises a plurality of drill elements configured to be inserted into the ground and to create the slit-formed opening in the ground.
11. The method according to claim 10, wherein inserting the plurality of drill elements into the ground causes the fastening element to rotate.
12. The method according to claim 11, further comprising hammering the fastening element to insert the fastening element into the ground.
13. The method according to claim 12, further comprising lowering the composite pole over the fastening element after the fastening element is hammered into the ground.
14. A method for making an apparatus for fastening a composite pole for overhead power lines to the ground, the method comprising providing a fastening element having a cylindrical shape extending between a lowermost end and an upper portion, the lowermost end of the fastening element being configured to be inserted into the ground, the upper portion of the fastening element corresponding to a lower portion of the composite pole such that the upper portion abuts the lower portion when the composite pole is lowered over the fastening element, wherein inserting the fastening element into the ground creates a slit-formed opening in the ground for the fastening element.
15. The method according to claim 14, wherein the lower portion of the composite pole is conical, further comprising providing the fastening element such that the upper portion of the fastening element is conical.
16. The method according to claim 14, further comprising providing a plurality of drill elements at the lowermost end of the fastening element, the plurality of drill elements being configured to create the slit-formed opening in the ground.
17. The method according to claim 16, further comprising providing the plurality of drill elements such that inserting the fastening element into the ground rotates the fastening element.
18. The method according to claim 17, further comprising providing the fastening element such that hammering the fastening element into the ground causes the plurality of drill elements to rotate the fastening element.
19. The method according to claim 16, further comprising providing the plurality of drill elements so as to be equally distributed about a center axis of the lowermost end of the fastening element.
20. The method according to claim 14, further comprising providing the fastening element so as to be fixable to the composite pole after the fastening element is inserted into the ground.
US17/571,057 2016-02-16 2022-01-07 Apparatus and method for fastening a composite pole to the ground Abandoned US20220127812A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/571,057 US20220127812A1 (en) 2016-02-16 2022-01-07 Apparatus and method for fastening a composite pole to the ground

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
NO20160270 2016-02-16
NO20160270A NO343861B1 (en) 2016-02-16 2016-02-16 Method of attaching a composite mast to the ground.
PCT/NO2017/050040 WO2017142419A1 (en) 2016-02-16 2017-02-16 Apparatus and method for fastening a composite pole to the ground
US201815998896A 2018-08-16 2018-08-16
US17/571,057 US20220127812A1 (en) 2016-02-16 2022-01-07 Apparatus and method for fastening a composite pole to the ground

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US15/998,896 Continuation US20210207335A1 (en) 2016-02-16 2017-02-16 Apparatus and Method for Fastening a Composite Pole to the Ground
PCT/NO2017/050040 Continuation WO2017142419A1 (en) 2016-02-16 2017-02-16 Apparatus and method for fastening a composite pole to the ground

Publications (1)

Publication Number Publication Date
US20220127812A1 true US20220127812A1 (en) 2022-04-28

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US15/998,896 Abandoned US20210207335A1 (en) 2016-02-16 2017-02-16 Apparatus and Method for Fastening a Composite Pole to the Ground
US17/571,057 Abandoned US20220127812A1 (en) 2016-02-16 2022-01-07 Apparatus and method for fastening a composite pole to the ground

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US (2) US20210207335A1 (en)
EP (1) EP3417127B1 (en)
AU (1) AU2017219459B2 (en)
CA (1) CA3014300A1 (en)
HR (1) HRP20201502T1 (en)
HU (1) HUE051287T2 (en)
NO (2) NO343861B1 (en)
PL (1) PL3417127T3 (en)
PT (1) PT3417127T (en)
SI (1) SI3417127T1 (en)
WO (1) WO2017142419A1 (en)

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NO344819B1 (en) 2017-11-17 2020-05-04 Comrod As Method for creating a clearance for a mast element in a ground.
NO20171964A1 (en) * 2017-12-08 2019-06-10 Comrod As Energy transportation mast with different conicities.
NO20171962A1 (en) * 2017-12-08 2019-06-10 Comrod As Method for fixing a conical energy transportation mast to the ground.
NO346911B1 (en) * 2021-01-11 2023-02-27 Comrod As Procedure for positioning a drilling machine when attaching a mast, typically an A-mast, in a terrain

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PT3417127T (en) 2020-10-22

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