GB2588681A - Plasterboard fixing device - Google Patents

Plasterboard fixing device Download PDF

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Publication number
GB2588681A
GB2588681A GB1915976.3A GB201915976A GB2588681A GB 2588681 A GB2588681 A GB 2588681A GB 201915976 A GB201915976 A GB 201915976A GB 2588681 A GB2588681 A GB 2588681A
Authority
GB
United Kingdom
Prior art keywords
fingers
finger
plasterboard
hole
fixing
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Withdrawn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
GB1915976.3A
Other versions
GB201915976D0 (en
Inventor
Anthony Howe Mark
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB1915976.3A priority Critical patent/GB2588681A/en
Publication of GB201915976D0 publication Critical patent/GB201915976D0/en
Priority to PCT/GB2020/052771 priority patent/WO2021089991A1/en
Priority to MX2022005246A priority patent/MX2022005246A/en
Priority to CN202080076937.0A priority patent/CN114829790B/en
Priority to CA3158005A priority patent/CA3158005A1/en
Priority to PL20816569.6T priority patent/PL4055284T3/en
Priority to US17/755,615 priority patent/US12038030B2/en
Priority to EP20816569.6A priority patent/EP4055284B1/en
Priority to ES20816569T priority patent/ES2964328T3/en
Priority to AU2020377529A priority patent/AU2020377529A1/en
Publication of GB2588681A publication Critical patent/GB2588681A/en
Withdrawn legal-status Critical Current

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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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • F16B13/0808—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation by a toggle-mechanism
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/21—Fastening means specially adapted for covering or lining elements
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2002/565—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with a brick veneer facing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0832—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements
    • E04F13/0833—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements not adjustable
    • E04F13/0835—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements not adjustable the fastening elements extending into the back side of the covering elements
    • E04F13/0837—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements not adjustable the fastening elements extending into the back side of the covering elements extending completely through the covering elements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connection Of Plates (AREA)

Abstract

A plasterboard fixing system is disclosed, the fixing device comprising two or more opposing and contra-rotating 90 degree fingers that when each finger is forced through a pre-made hole in plasterboard axially with a flat surfaced tool engage a lug on each finger on the front surface of the plasterboard that force rotation radially of the 90 degree finger to follow an arc expanding from within the pre-made hole radially to a much greater diametrical width at the rear of the pre-made hole but only protruding a small distance axially past the rear surface of the plasterboard where a second lug stop each finger travelling completely through the front surface of the plasterboard; then they are mechanically locked together once a screw or bolt is inserted into one or both of the fingers at the same time as attaching an item to be fixed to the anchor point; these fingers can be forced sequentially one at a time or simultaneously together and are pressed into place using the flat surface of a tool.

Description

Description
Plasterboard fixing system The present invention relates to a fixing system that finds, although not exclusive, a utility in providing an anchoring point in plasterboard cavity walls or ceilings for the purpose of affixing other items thereto.
Most plasterboard anchor fixings are a two-stage that have to first travel axially through a pre-made hole to a substantial depth past the rear surface of the plasterboard and secondly part of the fixing is made to mechanically expand radially at the rear of the plasterboard to a greater diameter than the pre-made hole by mechanically activated further by rotating a screw or bolt to expand the fixing radially at the rear of the plasterboard or using a special installation tool, this further increase the installation time of the fixing. Additionally, most of the current products on the market are complicated with a large number of parts which increases the cost of production. If the plasterboard is adhered to a wall using batons or dabs of adhesive the cavity depth restricts the implement of using many of these types of fixings as most of the current fixings are required to travel substantially past the rear of the plasterboard.
Current plasterboard anchor fixings are usually made to accommodate either a threaded bolt within a central aperture that has a pre-formed thread or allows a thread to be cut into the fixing creating its own thread such as made from a self-tapping screw or wood screw entering a pliable material such as plastic. If the fixing is made from a material that is not pliable such as metal a pre-formed thread is the optimum choice.
The current invention overcomes several of the problems with current designs by allowing the fixing device to be made by inserting two or more contra-rotating and opposing 90 degree fingers that when pressed axially into a pre-made hole within the plasterboard engage a lug on the front circumference of the pre-made hole in the plasterboard that force rotation radially of each 90 degree finger to follow an arc expanding from within the pre-made hole to expand radially to a much greater diametrical width when it passes the rear of the pre-made hole but only protruding a small distance past the rear surface of the plasterboard axially where a further lug prevents each finger travelling past the front surface of the plasterboard; they are then mechanically locked together once a screw or bolt is inserted into the fingers at the same time as attaching an item to the anchor point; these fingers can be placed sequentially one at a time or simultaneously together and are pressed into place using the flat surface of a tool such as a mallet for example.
We now will describe in detail one variation of the invention which has increased speed of installation utilising the simultaneous insertion of two fingers rather than sequential rotation of two fingers within an embodiment that contains two opposing rotational 90 degree fingers having a hole in one finger to accommodate a central hub attached to the other finger that are allowed to contra-rotate freely around each other and can be held together using a spring barbed pushed fit formed at the end of the hub. The hub can be an integral part of one of the fingers which allows a threaded hole or star shaped aperture within the hub to align correctly when the fixing in installed and pressed into the pre-made hole fully. The finger with the hole can be attached to the hub and held mechanically by a plurality of one way spring retaining fingers for example formed at the end of the hub but not restricted to this method as other methods of retaining the finger such as a plastic or metal welded washer attached to the hub to retain the second finger or retaining screw could be used. The fixing in a closed contracted state during the process of been pressed into a pre-formed hole in plasterboard will simultaneously engage lugs attached to the fingers with the front surface of the plasterboard to cause the rotation of the 90 degree fingers that will travel simultaneously axially and radially following a curved trajectory path slightly past the rear of the plasterboard but much greater than the diameter of the pre-made hole.
The fingers travel only a short distance past the rear of the plasterboard making it suitable for where there is only a small cavity behind the rear of the plasterboard.The fixing utilises the maximum space within the plasterboard thickness to allow the fingers to start mechanically expanding from opposing sides of the pre-made hole has it is pressed into the plasterboard. The fingers are shaped in such a way as to allow only a small protrusion of the fingers past the rear of the plasterboard as they follow a curved trajectory at any one time and then lock behind the rear of the plasterboard as the flat side of the fingers meets parallel to the rear of the plasterboard surface. Two further lugs on the fingers engage with the front surface to prevent the fingers travelling straight through the plasterboard along with a semi-circular flat flange formed on each finger. These lugs also prevent rotation of the fixing when tightening of a bolt or screw into the fixing. The fixing dimensions would be made to fit various thicknesses of plasterboard as there is only a small number of standard plasterboard thickness sizes on the market worldwide. The fixing can also be made to suit a wide range of pre-made fixing holes.
The fixing is a low part count fixing that can be made from predominately moulded plastic, metal or resin but is not restricted to such materials. This fixing also travels only a short distance axially past the rear of the plasterboard making it suitable for where there is only a small cavity behind the rear of the plasterboard. The fixing utilises the space within the plasterboard thickness to allow it to start mechanically expanding as it's pressed into the hole.
The Fixing is further strengthened when a bolt or screw is used to attach an object to the fixing and tightened between the fingers and through the central hub. This mechanically locks all the parts together and prevents any further rotation of the fingers in either direction as the fingers contain semi-circular groves that align only in one rotational position when the fingers are fully extended to accommodate the bolt or screw.
A specific embodiment of the invention will now be described by way of example with reference of accompanying drawings in which: Figure 1 shows a side view of the fixing with a picture hook attached in plasterboard.
Figure 2 illustrates a part cross section of the fixing device fully contracted been inserted into a cavity with the aid of a tool with a flat surface.
Figure 3 shows an exploded view of the fixing with a picture hook with a sphere formed hub.
Figure 4 shows an exploded view of the fixing with a picture hook with a cylinder formed hub and star shaped aperture to accommodate a standard wood screw.
Figure 5 shows a cross sectional view of the fixing with a picture hook attached in plasterboard.
Figure 6 shows a rear view of the fixing expanded in plasterboard.
Figure 7 shows a partially hollow 90 degree finger with a smaller solid 90 degree finger that travels internally in opposite direction that are inserted into the hole sequentially and that locked together with a bolt or screw.
Figure 8 shows a fixing that has a larger central finger and then two adjoining opposing fingers that is inserted into the hole sequentially and locked together with a bolt or screw.
Figure 9 Shows an optional sleeve that can be inserted into a pre-made hole in plasterboard first to evenly, distribute loading.
We now will describe in detail one variation of the invention in Fig 2 which has increased speed of installation utilising the simultaneous insertion of two 90 degree fingers 5a, 5b rather than sequential insertion of two fingers. An embodiment that contains two opposing rotational 90 degree fingers Sa, Sb having a hole 14 in one finger to accommodate a central hub 6 attached to the other finger that are allowed to contra-rotate freely around each other and can be held together by a plurality of non-returning barbed push-fit fingers 13 formed at the end of the hub 6 but not restricted to such a method as other methods such as a retaining screw and washer could be used or a plastic retaining welded washer to hold both fingers together but allow rotation. The hub 6 can be an integral part of one of the fingers 5a which allows a threaded hole 15 (Fig3) or star shaped aperture 16 (Fig 4) within the hub 6 to align correctly when the fixing in installed and pressed with a mallet 11 (Fig 2) into the pre-made hole 1 of the plasterboard 2. The fixing is in a closed contracted state in Fig 2 during the process of been pressed into a pre-formed hole 1 in plasterboard 2 will simultaneously engage lugs 3a, 3b attached to the fingers 5a, 5b with the front surface of the plasterboard 17 to cause the rotation of the 90 degree fingers 5a,5b that will travel simultaneously axially and radially following a curved trajectory path 18 slightly past the rear of the plasterboard 7 but much greater than the diameter of the pre-made hole 1. The fingers 5a, 5b travel only a short distance axially past the rear of the plasterboard 7 making it suitable for where there is only a small cavity 14 between the rear of the plasterboard 2 and the wall structure 12 (Fig 2). The fixing embodiment utilises the maximum space within the plasterboard thickness to allow the fingers 5a, 5b to start mechanically expanding 18 as it's pressed into the pre-made hole 1 from opposing sides of the pre-made hole 1 on surface 17. The fingers are shaped in such a way as to allow only a small protrusion of the fingers 5a, 5b past the rear of the plasterboard 7 as they follow a curved trajectory 18 at any one time and then lock behind the rear of the plasterboard surface 7 as the flat side of the fingers 19 meets parallel to the rear of the plasterboard surface 7. Two further lugs 4a, 4b on the fingers 5a, 5b engage with the plasterboard front surface 17 when fully expanded to stop the fingers 5a, 5b travelling straight through the plasterboard front surface 17. These lugs 4a, 4b also prevent rotation of the fixing radially when tightening of a bolt 8 or screw 8b into the fixing by biting into the plasterboard 2 front surface 17.
The fixing dimensions would be made to fit various thicknesses of plasterboard 2 as there are only a small number of standard plasterboard thickness sizes on the market worldwide. The fixing can also be made to suit a wide range of sizes of pre-made fixing holes 1. The Fixing is further strengthened when a bolts or screw 8b is used to attach an object such as a picture hook 9 to the fixing and tightened between the fingers 5a, 5b and through the central hub 6. This is achieved using semi-circular groves 10 which are formed within the fingers 5a,5b to accommodate the bolts or a screw 8b fixing to a tight tolerance as it travels towards and exits the hub 6. This mechanically locks all the parts together in its fully expanded form and prevents any further rotational path 18 of the fingers 5a, 5b.
The fixing is a low part count fixing that can be made from predominately molded plastic, formed metal or resin but is not restricted to such materials and can be a combination of all materials. This fixing also travels only a short distance past the rear of the plasterboard 7 making it suitable for where there is only a small cavity 14 behind the rear of the plasterboard 7. The fixing utilises the pre-made hole 1 void within the plasterboard thickness to allow it to start mechanically expanding as it's pressed into the pre-made hole 1.
The fixing incorporates near maximum permitted surface area that it can utilise for expansion when it changes from a contracted state travelling through the hole (Fig 2) to its fully expanded state as shown in the rear view of the fixing (Fig 6).
An optional additional sleeve lining 20 made from plastic, metal or resin can be introduced into a slightly larger designated pre-made hole 1 within the plasterboard 2 which allows for more evenly distributed loading within the pre-made hole laterally into the plasterboard 2 substrate from the fixing embodiment fingers 5a, 5b which is are not perfectly round. The sleeve 20 can be made to accommodate the lugs 4a, 4b, 5a, 5b with a recess 22 as so not to interfere with the rotational locking of the fixing when these bite into the front surface of the plasterboard 17. The sleeve lining 20 would also contain a lip 21 of low profile but larger than the pre-made hole 1 diameter to stop the sleeve 20 lining travelling straight through the plasterboard front surface 17 when fitted. This can be optionally introduced first into the pre-made hole 1 before the fixing embodiment is inserted or be attached to the fixing embodiment permanently as part of the design and introduced into the hole with the fixing simultaneously.

Claims (4)

  1. Claims 1 A fixing device formed of two or more similar 90 degree fingers that when each finger forced to enter axially part of the cross sectional area of a pre-made hole in sheet material engages a lug on each finger mechanically with the front surface of the hole which becomes the pivotal point causing rotation and expansion radially of each 90 degree finger from within the board material pre-made hole void on a rotational path to the rear of the board material and also to a greater diameter or the pre-made hole at the rear of the sheet material protruding only a small distance axially past the rear of the sheet material at any one arc of motion where a secondary lug on the finger prevents it completely travelling through the front of the sheet material; a second finger can then sequentially enter the remaining part of the cross sectional space in the pre-made hole in a contra-rotating path or simultaneously with the first finger in a contra-rotating path to share and increase the loading surface capacity uniformly at the rear of the sheet material; the fingers are formed in such a way that they can then be mechanically locked together in an expanded state when a bolt or screw is used to attach an item to the fixing.
  2. 2 The fingers has in Claim 1 can be locked in contra-rotation by introducing a hole in each finger that accommodates a shared threaded cylindrical hub that allows two or more fingers to be attached to the hub opposing each other that when inserted into a pre-made hole that allows the fixing and fingers to be inserted simultaneously into the pre-made hole and allow the fingers to rotate in opposite rotation.
  3. 3 One of the fingers as claimed in Claim 1 can have the hub made integral to itself aligning the semi-circular channels as in Claim 2 to a threaded hole or star shaped aperture within the hub. This automatically aligns the hub threaded hole or star shaped aperture in the correct orientation axially to accept a bolt or screw when the fixing is inserted into plasterboard material.
  4. 4 The fingers as claimed in Claim 1, Claim 2 and Claim 3 incorporate half semi-circular channels that allow the rotational movement of the fingers to be locked to each other and to the central hub in an expanded state once a threaded screw or bolt is used to attach an item where the semi-circular channels has the same radius as the fixing screw or bolt.The fingers as in Claim 1 can have a partially hollow section of one finger allowing the second slightly smaller finger to travel inside the first finger in a contra -rotating direction sequentially and locked together mechanically as in Fig 6 6 The fingers as in Claim 1 can have a central single finger threaded that allows two outer fingers linked together to be entered into the hole in a contra-rotating direction and locked together with a bolt or screw Fig 7 7 The fixing device as claimed in Claim 1 can have an optional additional pipe sleeve liner with lip to stop the sleeve liner travelling through the pre-made hole in the plasterboard which accommodates the fixing device improving even lateral load distribution within the hole from the fixing.8 A fixing device substantially as described herein with reference to Figures 1-8 of the accompanying drawings.
GB1915976.3A 2019-11-04 2019-11-04 Plasterboard fixing device Withdrawn GB2588681A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB1915976.3A GB2588681A (en) 2019-11-04 2019-11-04 Plasterboard fixing device
AU2020377529A AU2020377529A1 (en) 2019-11-04 2020-11-02 Fixing device
CA3158005A CA3158005A1 (en) 2019-11-04 2020-11-02 Fixing device
MX2022005246A MX2022005246A (en) 2019-11-04 2020-11-02 Fixing device.
CN202080076937.0A CN114829790B (en) 2019-11-04 2020-11-02 Fixing device
PCT/GB2020/052771 WO2021089991A1 (en) 2019-11-04 2020-11-02 Fixing device
PL20816569.6T PL4055284T3 (en) 2019-11-04 2020-11-02 Fixing device
US17/755,615 US12038030B2 (en) 2019-11-04 2020-11-02 Fixing device
EP20816569.6A EP4055284B1 (en) 2019-11-04 2020-11-02 Fixing device
ES20816569T ES2964328T3 (en) 2019-11-04 2020-11-02 Fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1915976.3A GB2588681A (en) 2019-11-04 2019-11-04 Plasterboard fixing device

Publications (2)

Publication Number Publication Date
GB201915976D0 GB201915976D0 (en) 2019-12-18
GB2588681A true GB2588681A (en) 2021-05-05

Family

ID=69058948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1915976.3A Withdrawn GB2588681A (en) 2019-11-04 2019-11-04 Plasterboard fixing device

Country Status (1)

Country Link
GB (1) GB2588681A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US499444A (en) * 1893-06-13 Bolt for attaching articles to walls
US1169635A (en) * 1915-07-07 1916-01-25 Lester A Grimes Pipe-hanger.
US4764065A (en) * 1987-05-06 1988-08-16 Johnson Carl D Wall anchor
US5417531A (en) * 1994-02-09 1995-05-23 Brown; Gordon A. Locking cam anchor apparatus
DE19720033A1 (en) * 1997-05-14 1998-11-19 Fischer Artur Werke Gmbh Masonry plug for screw fitting into porous wall
US6004088A (en) * 1999-01-11 1999-12-21 Hunt; James W. Wall fastener
GB2340170A (en) * 1998-07-31 2000-02-16 Rugg Easey Colin David Fixing device
US20030108397A1 (en) * 2000-05-30 2003-06-12 Hartmut Hoppe Expansion anchor which can be fixed to a panel-type building material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US499444A (en) * 1893-06-13 Bolt for attaching articles to walls
US1169635A (en) * 1915-07-07 1916-01-25 Lester A Grimes Pipe-hanger.
US4764065A (en) * 1987-05-06 1988-08-16 Johnson Carl D Wall anchor
US5417531A (en) * 1994-02-09 1995-05-23 Brown; Gordon A. Locking cam anchor apparatus
DE19720033A1 (en) * 1997-05-14 1998-11-19 Fischer Artur Werke Gmbh Masonry plug for screw fitting into porous wall
GB2340170A (en) * 1998-07-31 2000-02-16 Rugg Easey Colin David Fixing device
US6004088A (en) * 1999-01-11 1999-12-21 Hunt; James W. Wall fastener
US20030108397A1 (en) * 2000-05-30 2003-06-12 Hartmut Hoppe Expansion anchor which can be fixed to a panel-type building material

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