GB2446937A - Electrical earthing nut having an anti-loosening means - Google Patents

Electrical earthing nut having an anti-loosening means Download PDF

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Publication number
GB2446937A
GB2446937A GB0802911A GB0802911A GB2446937A GB 2446937 A GB2446937 A GB 2446937A GB 0802911 A GB0802911 A GB 0802911A GB 0802911 A GB0802911 A GB 0802911A GB 2446937 A GB2446937 A GB 2446937A
Authority
GB
United Kingdom
Prior art keywords
nut
electrical
receive
electrical earthing
earthing
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.)
Withdrawn
Application number
GB0802911A
Other versions
GB0802911D0 (en
Inventor
Richard Henry Pearce
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CABLE TERMINOLOGY Ltd
Original Assignee
CABLE TERMINOLOGY Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB0418497A external-priority patent/GB2417367A/en
Application filed by CABLE TERMINOLOGY Ltd filed Critical CABLE TERMINOLOGY Ltd
Priority to GB0802911A priority Critical patent/GB2446937A/en
Publication of GB0802911D0 publication Critical patent/GB0802911D0/en
Publication of GB2446937A publication Critical patent/GB2446937A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/643—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for rigid cylindrical bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel
    • H01R13/746—Means for mounting coupling parts in openings of a panel using a screw ring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

An earthing nut 1 has a nut body 2 having an internal thread 4 to receive a threaded shaft and an external perimeter shaped to receive a tensioning device such as a spanner. Nut body 2 has opposing generally planar races 5,6. The nut body 2 has at least on threaded aperture 7A, preferably extending radially from the perimeter, which receives a bolt securing an earth connector to the nut body. At least one raised rib 9A is provided to engage an abutting surface and preferably provide a scraping action and resist loosening of the nut; a plurality of such teeth 9A, 9B, 9C are preferably provided. Additional radial threaded apertures 7B, 7C may be provided to accept grub screws 8C, 8D to lock the nut to the shaft on which it is threaded and prevent rotation. Radially extending threaded apertures may be placed around the circumference of the nut to ensure an aperture is always facing an operator. Earthing nut 1 may be used with a cable gland.

Description

iiElectrical Earth mci Nut akaround The present invention relates to an
electrical earthing nut.
When Connecting an electrical junction box or appliance to a steel wire armoured (SWA) electrical cable, it is common practice to use a SWA cable gland. Such glands have a comprejon fitting on one side (which IS exposed) to physically clamp the steel armour wires, and a threaded shaft, which passes through the wall of a junction box or appliance. A nut is secured on the end of the threaded shaft to secure the gland to the box or appliance wall.
In order to comply with safety regulations in many jurisdictions it is necessary to earth at least one end of the cable. To achieve this, a particular type of washer -known as "banjo washer -is placed under the nut, and a bolt is then drilled through a hole in the arm of the washer to receive an earth wire employing a crimped connector. Also the arm is usually bolted through the box or appliance wall.
However, the aforementioned banjo washers have Suffered from a number of disadvantages.
Firstly the arm can break if bent away from the box or appliance wall. This has resulted in a disconnection of the gland from the earth connection This was dangerous and could result in an earth fault.
Secondly if the gland became loose, the connection between the washer and the gland degraded to a poor connection which caused a high resistance path to earth. /
Thirdly often the box or appliance wall was made of a synthetic plastics material and this sometimes distorted, causing the connecion between the washer and the gland to become poor, again resulting in a high resistance path to earth.
Fourthfy the task of drilling a hole in the appliance or box wall was time consuming and fiddly, particularly where there was poor or limited access, and a separate nut and bolt was required for the earth connection.
An object of the invention is therefore to provide an earthing nut which overcomes the aforementioned disadvantages.
Another object of the invention is to provide an earthing nut which can replace the existing combination of a nut and banjo washer on SWA cable glands.
A further object of the invention is to provide an earthing nut which can be used in other existing electncj installations, such as other metal cable glands and electrical conduits, and may be retrofitted into such electrical installations.
ummarv of the Invention According to a first aspect of the present invention there is provided an electrical earthing nut comprising: a) a nut body having an internal thread and an external perimeter shaped to receive a tensioning device, such as a spanner, said nut body having Opposing generally planar faces, b) at least one threaded aperture on the nut body to receive a bolt to secure an earth connector to the nut body; and C) at least one raised rib on one planar face to engage a surface against which the nut is to abut.
The or each raised rib is ideally dimensioned and arranged to scrape or cut the surface against which a planar face of the nut is to abut.
Preferably, the or each, threaded aperture extends into the nut body from a perimeter of the nut body.
In a yet further embodiment the nut may have a raised or extended annulus or flange defined around the rim or aperture defined on the or each planar surface of the nut.
Three apertures are ideally provided, one to receive a bolt and the other two for receiving grub screws to drive against, or bite into, a threaded shaft on which the nut is threaded.
Where more than one aperture is provided from a flat face of a perimeter, for example in the case of an hexagonal nut, the holes may be offset. An advantage of this is that it enables grub screws to be more readily fitted in applications where Space ts cramped.
Preferably at least three and Preferably four (or more) raised projections or ribs are provided. These projections or ribs are ideally formed on a planar face of the nut.
Ideally the outer perimeter of the nut IS generally circular with Opposing flat portions to receive a spanner or wrench.
In an alternative embodiment of the invention the outer perimeter of the nut is polygonal or Ideally hexagonal.
In a yet further embodiment the nut may have a raised or extended annulus or flange defined around the rim or aperture defined on the or each planar surface of the nut.
An advantage of the embodiment having the raised or extended annulus is that the nut is centraljsecJ in the event it is located in an oversize hole. This feature thus ensures the nut is held stationery, by way of an axial or compressive force, and does not vibrate. Vibration of connectors, Particularly safety conriectors is undesirable because contacts and connections may work loose, thus rendering the safety connector ineffective The invention also extends to an earthing nut as defined above in combination with cable gland.
It Will be appreciated that the invention also extends to an earthing nut, as defined above, in combination with an electrically conductive cable.
According to another aspect of the invention there is provided a method of forming an electrical earthing nut comprising the steps of: a) forming a nut body having an internal thread and an external perimeter shaped to receive a tensioning device, such as a spanner, said nut body having Opposing generally planar faces; b) forming at least one threaded aperture on the nut body to receive a bolt to secure an earth connector to the nut body; and C) forming at least one raised rib on one planar face of the nut.
Methods of forming the nut include: stamping, swaging and forging.
It will be apprecjatJ that this further aspect of the invention also extends to the other preferrecj features associated with the above mentioned aspects of the earthlng nut.
Embodiments of the invention will now be described, by way of exemplary example, and with reference to the drawings in which:
Brief Description of the Fiqs
Figure 1 Shows a perspective view of a nut ifl accordance with one aspect of the inventionS Figure 2 shows an exploded perspective view of a cable gland and an embodiment of a nut in accordance with one aspect of the invention; Figures 3a, 3b and 3c show plan and elevation views of three alternative embodiments of the invention; and Figure 4 shows plan and elevation view of a further alternative embodiment of the invention, which includes an annulus.
Detailed Description of Preferred Embodiments of the Invention Refemng to Figure 1 there is shown an electrical earthing nut 1.
Nut 1 has an annular nut body 2 with generally circular perimeter with Opposing flat Portions 3A, 3B to receive a spanner or other tensioning device. Nut body 2 has an internal thread 4 to receive a threaded shaft. Nut body 2 has Opposing generally planar faces 5 and 6.
Three radially spaced threaded apertures 7A, 7B, 7C extend into the nut body 2 from the nut body perimeter. Aperture 7A receives a bolt 8A and earth connector 88 with a wire leading to earth. Apertures 7B, 7C (which may be located at any position around the perimeter of the nut) each receive grub Screws 8C, 8D to engage with, or bite into, a threaded shaft (not shown) on which the nut I is placed.
Four raised ribs in the form of teeth 9A, 9B, 9C, 9D are provided on planar face 5 to scrape or cut into a surface against which the nut is to abut. The purpose of these ribs or teeth 9A, 98, 9C, 90 is to Referring now to Figure 2, there is shown a cable gland 10 to be fitted through an aperture 21 of a wall 20 of an electrical box or appliance (not shown) using the earthing nut 1. Cable gland 10 is of a type well known in the art having a threaded shaft 11 extending one side of a nut 12 and a compression base 13 which receives a compression nut 14.
In use, shaft II is passed through aperture 21 and secured to wall 20 by nut I of the invention on the other side of wall 20.
As nut 1 is tightened, so the teeth 9A, 98, 9C, 90 scrape across and cut into the surface of wall 20. This has three advantages: Firstly if the wall 20 is metal, paint thereon is scraped away so providing a good electrical connection between the nut I and the wall.
Secondly, the teeth prevent the nut from Unwinding off shaft 11.
Thirdly, once tightened with the teeth engaged with the wall 20, the combined assembly of gland 10 and nut I can be tightened merely by rotating gland nut 12 with a Spanner or wrench (not shown). That is, a separate spanner is not required to hold nut 1 whilst gland 10 is rotated.
Connector 8B is attached to nut body 2 by bolt 8A. This arrangement provides a more reliable mechanical and electrical connection to earth than was Previously achieved with a banjo nut. Furthermore there is no longer any need for difficult drilling of a hole in the wall of a box or appliance.
Grub screws 8C, 8D engage with and bite into shaft 11 to help ensure the nut 1 stays in close contact with the shaft 11. Grub screws aid electrical contact if used on plastic enclosures or when terminating cables (not Shown) where no enclosure wall is used.
It will be appreciated that nut I may be used in other electrical installations such as connecting electrical Conduits into walls of domestic or industrial electrical boxes or appliances; connecting electrical leads to vibrating systems, such as engines; aeronautic or marine applications where good electrical connections and insulation are essential for safety; and oil field, chemical or petrochemjj plants, where safety issues are also paramount.
The invention may take a form different to that specifically described. For example, the outer perimeter of the nut body 2 may be polygonal, hexagonal.
Nut I may be sold on its own or in combination with cable gland 10. The invention thus also extends to an earthing nut as defined above In combination with cable gland.
Referring briefly to Figures 3a, 3b and 3c which show plan and elevation views of three different sized nut I of an alternative embodiments of the invention, in which like parts bear the same reference numerals as in Figures 1 and 2. The nut shown in Figures 3a, 3b and 3c is in the form of a conventional hexagonal nut.
Figures 3a and 3b show different sizes of nut 1 having a single hole in three sides.
The reason for forming a hole in three sides is so that when the nut I is tightened there will always be a side, facing an operator, with a hole presented for receiving the grub screw 8.
Figure 3c shows a larger version of the nut I in which two holes 7A are formed in one of the faces. The holes 7A are offset so as to enable the nut to be readily used in areas of limited access or fitted in applications where space is cramped, thereby always ensuring a hole IS accessible for receiving a grub screw.
The nuts in Figures 3a, 3b and 3c are illustrated as not having teeth. However, they may have teeth.
Referring briefly to the embodiment shown Figure 4, in which like parts bear the same reference numerals, there is shown a nut I with a raised or extended annulus or flange 30 defined around the rim or aperture defined on the or each planar surface 5 or 6 of the nut I. The raised or extended annulus 30, in use, ensures that the nut us centralised in the event it is located in an oversize hole or location where it is prone to vibration (not shown).
Rim or annulus 30 therefore ensures the nut I is held stationery, by way of an axial or compressive force, and does not vibrate.
it will be understood that the dimensions of the nuts and the holes change to accommodate different cable sizes.
Ideally the nut is formed from a material with good mechanical and electrically conductive propert,es. Ideally a metal such as brass or steel is preferred, however, it is envisaged that composite materials may also be used for special,st applications.
Thus use of the invention overcomes the disadvantages with existing earthing nuts and thereby provides a more reiabIe earthing nut that does not suffer from existing drawbacks is not prone to vibrating free once fitted; is simple to use and easily fitted.
Further modifitjons will be apparent to those skilled in the art Without departing from the scope of the present invention

Claims (14)

  1. Claims 1. An electrical earthing nut comprising: a) a nut body having
    an internal thread and an external perimeter shaped to receive a tensioning devjce such as a spanner, said nut body having Opposing generaHy planar faces, b) at least one threaded aperture on the nut body to receive a bolt to secure an earth connector to the nut body; and C) at least one raised rib on one planar face to engage a surface against which the nut is to abut
  2. 2. An electrical earthing nut according to claim 1, wherein the or each threaded aperture extends into the nut body from the nut body perimeter.
  3. 3. An electrical earthing nut according to claim 2, wherein three apertures are provided7 one to receive a bolt and the other two for receiving grub screws to bite into a threaded shaft on which the nut is placed.
  4. 4. An electrical earthing nut according to any preceding claim, wherein three, four or more raised ribs are provided.
  5. 5. An electrical earthing nut according to any preceding claim, wherein the outer perimeter of the nut is generally circular with Opposing flat portions to receive a spanner.
  6. 6. An electncaj earthing nut according to any of claims 1 to 4, wherein the outer perimeter of the nut is polygonal.
  7. 7. An electrical earthirig nut according to any of claims 6, wherein the outer perimeter of the nut is hexagonal.
  8. 8. An electrical earthing nut according to claim 7, when dependent on 3, wherein two apertures are provided adjacent one another in a single face of the perimeter of an hexagonal nut.
  9. 9. An electrical earthing nut according to any preceding claim wherein a raised or extended annulus or flange is defined around the rim or aperture defined on a planar surface of the nut.
  10. 10. An electrical earthing nut according to any of claims 1 to 8 wherein a raised or extended annulus or flange is defined around the rim or aperture defined on both planar surfaces of the nut.
  11. 11. A cable gland incorporating an electrical earthing nut according to any preceding claim.
  12. 12. A method of forming an electrical earthing nut comprising the steps of: a) forming a nut body having an internal thread and an external perimeter shaped to receive a tensioning device, such as a spanner, said nut body having OppOSing generally planar faces; b) forming at least one threaded aperture on the nut body to receive a bolt to secure an earth connector to the nut body; and c) forming at least one raised rib on one planar face of the nut.
  13. 13. An electrical earthing nut substantially as hereinbefore described with reference to and as shown in the drawings.
  14. 14. A method of forming an electrical earthing nut substantially as hereinbefore described with reference to and as shown in the drawings.
GB0802911A 2004-08-19 2008-02-18 Electrical earthing nut having an anti-loosening means Withdrawn GB2446937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0802911A GB2446937A (en) 2004-08-19 2008-02-18 Electrical earthing nut having an anti-loosening means

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0418497A GB2417367A (en) 2004-08-19 2004-08-19 Electrical earthing nut
GB0623794.5A GB2429588C (en) 2004-08-19 2005-08-19 An electrical earthing nut
GB0802911A GB2446937A (en) 2004-08-19 2008-02-18 Electrical earthing nut having an anti-loosening means

Publications (2)

Publication Number Publication Date
GB0802911D0 GB0802911D0 (en) 2008-03-26
GB2446937A true GB2446937A (en) 2008-08-27

Family

ID=39271850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0802911A Withdrawn GB2446937A (en) 2004-08-19 2008-02-18 Electrical earthing nut having an anti-loosening means

Country Status (1)

Country Link
GB (1) GB2446937A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889288A (en) * 2014-12-19 2016-08-24 遵义勤乐五金建材加工厂 Anti-falling bolt component
EP2988373B1 (en) * 2011-09-27 2018-03-21 Yasaki Corporation Earth terminal mounting tool
WO2023128897A1 (en) * 2021-12-30 2023-07-06 Bi̇med Tekni̇k Aletler Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Cable gland assemblies

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189198A (en) * 1978-07-31 1980-02-19 Gould Inc. Conduit ground wire coupling
US4806108A (en) * 1982-09-13 1989-02-21 Meinhardt Ben W Grounding bushing
GB2223701A (en) * 1988-09-15 1990-04-18 David Woods Nut

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189198A (en) * 1978-07-31 1980-02-19 Gould Inc. Conduit ground wire coupling
US4806108A (en) * 1982-09-13 1989-02-21 Meinhardt Ben W Grounding bushing
GB2223701A (en) * 1988-09-15 1990-04-18 David Woods Nut

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2988373B1 (en) * 2011-09-27 2018-03-21 Yasaki Corporation Earth terminal mounting tool
CN105889288A (en) * 2014-12-19 2016-08-24 遵义勤乐五金建材加工厂 Anti-falling bolt component
WO2023128897A1 (en) * 2021-12-30 2023-07-06 Bi̇med Tekni̇k Aletler Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Cable gland assemblies

Also Published As

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)