GB2199914A - Blind fastener device - Google Patents
Blind fastener device Download PDFInfo
- Publication number
- GB2199914A GB2199914A GB08630733A GB8630733A GB2199914A GB 2199914 A GB2199914 A GB 2199914A GB 08630733 A GB08630733 A GB 08630733A GB 8630733 A GB8630733 A GB 8630733A GB 2199914 A GB2199914 A GB 2199914A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- hole
- expander
- drive nut
- fastener device
- 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.)
- Pending
Links
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 238000004873 anchoring Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 229910001296 Malleable iron Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- F16B13/06—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 combined with expanding sleeve
- F16B13/063—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 combined with expanding sleeve by the use of an expander
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
Deformable external fins (16) are provided on the slotted expansible sleeve (11) of a fastener so as to be deformed to wedge the fastener in a hole in a structure, by virtue of a cutting or shearing action by the sharp edge of the hole as the sleeve (11) is driven flush with the structure by hammering into the hole. The sleeve (11) is then expanded by drawing a frusto-conical nut (12) into it by means of a threaded bolt (not shown). The nut (12) has projections (20) which slide in guide slots (15) in the sleeve (11) in order to present rotation. The nut (12) is returned in the sleeve (11) by a clip (21) <IMAGE>
Description
BLIND FASTENER DEVICE
This invention relates to a blind fastener device which comprises a sleeve having slots extending from one end to permit radial expansion of said end, an internally threaded expander engageable with said sleeve end and movable axially relative to the sleeve in a direction towards the opposite end thereof in order to expand the sleeve, and a threaded fastener which can be taken through the sleeve from the opposite end in order to engage the expander and, upon tightening, to draw the expander in a direction towards the opposite end of the sleeve.
So-called "blind fasteners" are used widely in situations in which access can only readily be had to one side of a mounting hole in a mounting portion on a structure, such as rolled hollow section steelwork, the fastener being introduced into the hole from this one side, and tightening of the fastener being carried out from this one side which results in the fastener securely anchoring itself in the mounting hole.
In many existing constructions, a slotted sleeve is provided which can be radially expanded at its inner or "blind" end by drawing an expander into engagement with the inner end of the sleeve, whereby the sleeve is firmly anchored in position. When the sleeve projects right through the hole, the inner end can be deformed radially outwardly so as to engage at least the mouth of the hole at the "blind" end, thereby to resist axial withdrawal of the fastener. In a situation in which the sleeve is entirely located within a mounting hole, the inner end of the sleeve can be deformed radially outwardly into firm anchoring engagement with the material in which the mounting hole is formed.
The expander is usually threaded, and is engaged by a threaded fastener in the form of a bolt or the like taken from the access side of the mounting hole and through the sleeve. The bolt is used to secure any desired fixture to the mounting point, and progressive tightening of the bolt first causes the sleeve to be anchored at its blind end, and then causes the fixture to be secured to the mounting point.
It is usual for sleeves of existing blind fasteners to be lightly tapped into position, in a mounting hole e.g. a plain drilled hole, prior to expansion of the sleeve, but unless a retaining flange is provided at the front end (the end which faces the access side of the mounting hole) of the sleeve, there is often a risk that a clumsy operative may push the sleeve right through the mounting hole. Given that a blind fastener will usually be used in conditions where access cannot readily be had to the inner end of the mounting hole, the fastener will be lost without hope of recovery.
While this problem can be overcome by providing a retaining flange at the front end of the sleeve, this flange will overlie the annular surface surrounding the mouth of the mounting hole, and this will therefore make it impossible for a fixture to be mounted exactly flush with the exposed surface of the mounting portion.
The invention has therefore been developed primarily, though not exclusively, with a view to providing a blind fastener device in which a sleeve thereof can be safely inserted from one side into a blind hole, and then safely retained therein, without the necessity to provide a retaining flange.
According to one aspect of the invention there is provided a blind fastener device for mounting in a hole in a mounting portion of a structure by introduction of the fastener device into the hole from one side thereof, the device comprising:
a sleeve having a first end and a second end, and slots extending through the wall of the sleeve from said first end, the sleeve being intended to be introduced into the hole so that the second end is located flush with the surface of the mounting portion, or inwardly thereof, and the first end is located within the hqle or projects from the other side thereof;;
an internally threaded expander engaging with said first end of the sleeve, the expander and the sleeve having co-operative surfaces which cause radial expansion of the first end of the sleeve upon axial movement of the expander in a direction towards the second end of the sleeve; and
a threaded fastener which can be taken through the second end of the sleeve and into engagement with the expander in order to mount a part on the mounting portion, whereby tightening of the threaded fastener causes the expander to move towards the second end of the sleeve in order to expand the first end of the sleeve into anchoring engagement with the mounting portion so as to prevent axial withdr?.; al of the sleeve;;
in which the sleeve is provided with external fins at or near to said second end and extending outwardly of the wall of the sleeve, the fins being made of deformable material so as to be capable of being subjected to a cutting or shearing action by the relatively sharp edge of the mouth of the hole during introduction of the sleeve into the hole, in order to adapt the sleeve to the size of the hole and thereby securely locate the sleeve in the hole prior to expansion of the first end of the''sleeve.
It is preferred that the sleeve is made of metal, and at least the fins may be made of malleable iron so that they may be deformed by the mouth and/or the internal wall of the hole during introduction of the sleeve into the hole.
A blind fastener device according to the invention is particularly suitable for use in mounting a component, such as a structural steel section, on a mounting portion of a further structural steel section having a blind hole with ready access available only at one side, in which case the steel material defining the hole, and especially the sharpedged mouth thereof, is able to deform, by cutting and/or shearing, the fins on the sleeve.
Conveniently, the fins each extend radially outwardly of the sleeve and may be arranged at uniform spacings about the circumference of the sleeve.
To provide progressively tighter fitting of the sleeve in the hole, it is preferred that each fin takes the form of a wedge having increasing radial extent in a direction towards the second end of the sleeve.
The internally threaded expander comprises a type of "nut", and preferably takes the form of a conical or partconical drive nut which engages a corresponding frustoconical surface at the first end of the sleeve.
In order to hold the drive nut captive against rotation during tightening of the threaded fastener, a projection may b provided on the drive nut which engages a guide provided on the sleeve. Preferably, a plurality of projections are provided on the drive nut, and conveniently each projection is slidable along a respective one of the slots (which permit radial expansion of the sleeve) which therefore forms the guide therefor.
The drive nut will have external dimensions no greater than the first end of the sleeve, so as not to project laterally therefrom, whereby the nut and sleeve assembly can enter the hole with the nut leading.
In order to maintain the nut temporarily captive with the sleeve during initial positioning, and prior to operation of the threaded fastener, a peripheral groove may be provided in the outer surface of the sleeve, adjacent said first end, into which an annular retaining clip can be mounted, the arrangement being such that upon entry of each projection in the corresponding slot, and the subsequent mounting of the retaining clip, the latter acts to prevent withdrawal of the projections from the slots. Upon subsequent axial movement of the drive nut, in order to expand the sleeve, the retaining clip is either ruptured, or becomes dislodged from its retaining position, but by this time the expander is firmly engaged with the threaded fastener, and is therefore held captive.
According to a further aspect of the invention there is provided a blind fastener device for mounting in a hole in a mounting portion of a structure by introduction of the fastener device into the hole from one side thereof, the device comprising:
a sleeve having a first end and a second end, and slots extending through the wall of the sleeve from said first end, the sleeve being intended to be introduced into the hole so that the second end is located flush with the surface of the mounting portion, or inwardly thereof, and the first end is located within the hole or projects from the other side thereof;
an internally threaded expander engaging with said first end of the sleeve, the expander and the sleeve having co-operative surfaces which cause radial expansion of the first end of the sleeve upon axial movement of the expander in a direction towards the second end of the sleeve; and
a threaded fastener which can be taken through the second end of the sleeve and into engagement with the expander in order to mount a part on the mounting portion, whereby tightening of the threaded fastener causes the expander to move towards the second end of the sleeve in order to expand the first end of the sleeve into anchoring engagement with the mounting portion so as to prevent axial withdrawal of the sleeve;
in which the expander comprises a frusto-conical drive nut which is engageable with a frusto-conical surface at the first end of the sleeve, and at least one projection is provided on the drive nut which is slidably received by a respective one of the slots in the sleeve in order to hold the drive nut captive against rotation, and to guide the drive nut axially in a direction towards the second end of the sleeve, upon tightening of the threaded fastener.
Preferably, a plurality of projections are provided on the drive nut, such as four projections spaced apart at 900 from each other about the axis of the drive nut, and each projection being slidable along a respective one of four slots provided in the sleeve.
One embodiment of blind fastener device according to the invention will now be described in detail, by way of example only, with reference to the accompany drawings in which:
Figure 1 is a side view of an expandable sleeve of the device;
Figure 2 is a view from one end of the sleeve;
Figure 3 is a section taken on Y-Y in Figure 2;
Figure 4 is a section taken on A-X in Figure 1;
Figure 5 is a view from an opposite end of the sleeve;
Figure 6 is an end view of an expander in the form of a drive nut for engagement with the sleeve shown in Figures 1 to 5;
Figure 7 is a side view of the drive nut;
Figure 8 is an opposite end view of the drive nut; and
Figure 9 is a sectional view of an assembly of the sleeve of Figures 1 to 5 with the drive nut of Figures 6 to 8.
Referring now to Figure 9 of the drawings, a blind fastener device according to the invention is designated generally by reference 10 and is intended for mounting in a hole of a mounting portion of a structure by introduction of the device 10 into the hole from one side thereof. The device comprises a sleeve 11 which is radially expandable at one end, and an expander in the form of a drive nut 12 which is engaged with the sleeve 11 and is capable of causing radial expansion of the sleeve in order to securely anchor the sleeve in a mounting hole. The construction of the sleeve 11 is shown in more detail in Figures 1 to 5, and of the drive nut 12 is shown in Figures 6 to 8.
Referring now to Figures 1 to 5, the sleeve 11 has a first end 13 and a second end 14, and slots is extend through the wall of the sleeve from the first end 13 in a direction towards the second end 14. In use, the sleeve 11 is introduced into a mounting hole (not shown) so that the second end 14 is located flush with the surface of the mounting portion, or inwardly thereof, whereas the first end 13 is located within the hole, or projects from the other side thereof. It will be noted particularly that the sleeve 11 is generally cylindrical in shape, and is not provided with any retaining flange or other projection at the second end 14.
The sleeve 11 is also provided with external fins 16 at or near to the second end 14, these fins extending radially outwardly of the wall of the sleeve and being made of a deformable material so as to be capable of being subjected to a cutting or shearing action by the relatively sharp edge of the mounting hole, or by the wall of the hole, during introduction of the sleeve into the hole, thereby to adapt the sleeve to the size of the hole, and also securely locate the sleeve in the hole prior to expansion of the first end 13 of the sleeve. The fins 16 also cut V-shaped grooves in the wall of the hole, thereby giving further resistance to turning of the sleeve in the hole.
The sleeve 11 is made of metal, and at least the pins 16 are made of malleable iron, so that they can be deformed by the mouth and/or the internal wall of the hole during introduction of the sleeve into the hole.
Referring now to Figures 6 to 8, the drive nut 12 is shown in more detail, and forms an internally threaded expander which engages with the first end 13 of the sleeve 11 so as to cause radial expansion of this end of the sleeve upon axial movement of the drive nut 12 in a direction towards the second end 14 of the sleeve upon threaded engagement of a threaded fastener (not shown) with the drive nut 12. A threaded fastener, such as a bolt, is taken through the second end 14 of the sleeve and into engagement with an internally tapped hole (not shown) in the drive nut 12 in order to mount a component part on the mounting portion.Upon tightening of the threaded fastener, this causes the drive nut 12 to move towards the second end 14 in order to expand the first end 13 radially outwardly into anchoring engagement with the mounting portion, thereby to prevent axial withdrawal of the sleeve.
The drive nut 12 has a frusto conical engagement surface 18 which engages a corresponding internal frusto conical engagement surface 19 (see Figures 4 and ,j at the first end 13 of the sleeve. Evidently, upon movement of the drive nut 11 to the left, as seen in Figure 9, this will cause radially outward expansion of at least the first end 13 of the sleeve 11, by virtue of the axial slots 15 provided in the wall of the sleeve.
In order to hold the drive nut 12 captive against rotation, during tightening of the threaded fastener, one or more projections 20 are provided on the drive nut which engage a guide, or respective guide, provided on the sleeve. In the illustrated embodiment, four projections 20 are provided on the drive nut 12, spaced apart at 900 from each other, and each projection 20 is slidable along a respective one of the four slots 15 (which permit the radial expansion of the sleeve) which forms the respective guide for each projection 20. The guiding function of the slots 15 is such as to hold the drive nut 12 captive against rotation, and also such as to guide the axial movement of the drive nut towards the second end 14 of the sleeve during tightening of the threaded fastener.
As can be seen from Figure 9, the drive nut 12 has external dimensions no greater than the first end 13 of the sleeve, so as not to project laterally therefrom, whereby the nut and sleeve assembly can enter the mounting hole with the nut leading. In order to maintain the nut temporarily captive with the sleeve during initial positioning, and prior to operation of the threaded fastener, a peripheral groove 21 is provided in the outer surface of the sleeve, adjacent to the first end 13, in which an annular retaining clip 22 is mounted. The arrangement is such that, upon entry of each projection 20 in the corresponding slot 15, and the subsequent mounting of the retaining clip 22, the latter acts to prevent withdrawal of the projections from the slots.Upon axial movement of the drive nut 12 to the left, following tighteninr; of the threaded fastener, the clip 22 is ruptured, or becomes dislodged, but by this time the nut is held captive relative to the sleeve by the threaded fastener.
As can be seen from Figures 1 to 5, four radially extending fins 16 are provided on the sleeve 11, at 900 spacing from each other, and each fin takes the form of a wedge having increasing radial extent, in a direction towards the second end 14, so as to provide progressively tighter fitting of the sleeve in the mounting hole, as it is forced into position, by hammering.
The blind fastener device illustrated in the drawings may be used in any situation in which assembly of components is required, where there is ready access available only to one side of a mounting hole. The sleeve and drive nut components of the fastener device may be used in conjunction with any standard type of threaded fastener, such as a bolt or set screw, and the device will be particularly suitable for making a fixing into rolled hollow section steelwork or the like. When assembled at the factory, ready for use, the drive nut 12, consisting of a cone, will be tapped with an internal thread, and the assembly of the sleeve and drive nut is held together by a simple wire ring (22) located in the groove 21.
To use the blind fastener device in, for example, structural steelwork, a plain hole of a predetermined size is first drilled in the steelwork to which fixing is required. The assembly is then pushed into the hole, drive nut end first, until the fins 16 on the outside of the sleeve begin to catch or wedge in the hole in the steel work. At this point, the assembly is driven into the hole using light blows from a hammer, until the front face of the sleeve, at second end 14, is flush with the face of the steelwork. The four small fins 16 around the sleeve are designed specially so as to deform and to wedge the assembly into the mounting hole, by virtue of a cutting or shearing action applied to the fins by the relatively sharp edge of the drilled hole acting on the wedge shaped fins.
To operate the assembly, a set screw of appropriate length may be passed through the component to be fixed, and then entered into the drive nut. By further and continual tightening of the set screw, the item to be fixed is drawn up against the face of the steelwork to be fixed, while at the same time the conical drive nut is pulled further into the sleeve. The individual portions of the sleeve separated by the pre-cast slots 15 in the sleeve then begin to expand, thus enlarging the sleeve at the blind side of the hole in the steelwork. After further tightening of the set screw, the entire assembly becomes fully tight, effectively securing the item to be fixed to the initial steelwork.
A high tensile grade set screw may be used as the threaded fastener to operate the fastener device, and it should be understood that any desired size, strength and length of threaded fastener will be used, according to requirements.
Claims (11)
1. A blind fastener device for mounting in a hole in a mounting portion of a structure by introduction of the fastener device into the hole from one side thereof, the device comprising:
a sleeve having a first end and a second end, and slots extending through the wall of the sleeve from said first end, the sleeve being intended to be introduced into the hole so that the second end is located flush with the surface of the mounting portion, or inwardly thereof, and the first end is located within the hole or projects from the other side thereof;
an internally threaded expander engaging with said first end of the sleeve, the expander and the sleeve having co-operative surfaces which cause radial expansion of the first end of the sleeve upon axial movement of the expander in a direction towards the second end of the sleeve; and
a threaded fastener which can be taken through the second end of the sleeve and into engagement wit the expander in order to mount a part on the mounting portion, whereby tightening of the threaded fastener causes the expander to move towards the second end of the sleeve in order to expand the first end of the sleeve into anchoring engagement with the mounting portion so as to prevent axial withdrawal of the sleeve;;
in which the sleeve is provided with external fins at or near to said second end and extending outwardly of the wall of the sleeve, the fins being made of deformable material so as to be capable of being subjected to a cutting or shearing action by the relatively sharp edge of the mouth of the hole during introduction of the sleeve into the hole, in order to adapt the sleeve to the size of the hole and thereby securely locate the sleeve in the hole prior to expansion of the first end of the sleeve.
2. A fastener device according to Claim 1, in which the sleeve is made of metal, and at least the fins are made of malleable iron so as to be deformable by the mouth and/or the internal wall of the hole during introduction of the sleeve into the hole.
3. A fastener device according to Claim 1 or 2, in which the fins each extend radially outwardly of the sleeve, and are arranged at uniform spacings about the circumference of the sleeve.
4. A fastener device according to any one of the preceding claims, in which each fin takes the form of a wedge having increasing radial extent in a direction towards the second end of the sleeve.
5. A fastener device according to any one of the preceding claims, in which the internally threaded expander takes the form of a conical or part-conical drive nut which is engageable wit a corresponding frusto-conical surface at the first end of the sleeve.
6. A fastener device according to Claim 5, in which a projection is provided on the drive nut which is engageable with a guide provided on the sleeve.
7. A fastener device accoring to Claim 6, including a plurality of projections provided on said drive nut, and a respective plurality of slots formed in the sleeve to permit radial expansion of the sleeve and each arranged to form a respective guide for a corresponding one of said projections.
8. A fastener device according to Claim 7, including a peripheral groove provided in the outer surface of the sleeve, adjacent to said first end, into which an annular retaining clip can be mounted, the arrangement being such that upon entry of each projection in the corresponding slot, and the subsequent mounting of the retaining clip, the latter acts to prevent withdrawal of the projections from the slots.
9. A blind fastener device for mounting in a hole in a mounting portion of a structure by introduction of the fastener device into the hole from one side thereof, the device comprising:
a sleeve having a first end and a second end, and slots extending through the wall of the sleeve from said first end, the sleeve being intended to be introduced into the hole so that the second end is located flush with the surface of the mounting portion, or inwardly thereof, and the first end is located within the hole or projects from the other side thereof;
an internally threaded expander engaging with said first end of the sleeve, the expander and the sleeve having co-operative surfaces which cause radial expansion of the first end of the sleeve upon axial movement of the expander in a direction towards the second end of the sleeve; and
a threaded fastener which can be taken through the second end of the sleeve and into engagement with the expander in order to mount a part on the mounting portion, whereby tightening of the threaded fastener causes the expander to move towards the second end of the sleeve in order to expand the first end of the sleeve into anchoring engagement with the mounting portion so as to prevent axial withdrawal of the sleeve; ;
in which the expander comprises a frusto-conical drive nut which is engageable with a frusto-conical surface at the first end of the sleeve, and at least one projection is provided on the drive nut which is slidably received by a respective one of the slots in the sleeve in order to hold te drive nut captive against rotation, and to guide the drive nut axially in a direction towards the second end of the sleeve, upon tightening of the threaded fastener.
10. A fastener device according to Claim 9, including a plurality of projections provided on the drive nut and each slidable along a respective one of the slots provided in the sleeve.
11. A blind fastener device according to Claim 1 and substantially as hereinbefore described with reference to, and as shown in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08630733A GB2199914A (en) | 1986-12-23 | 1986-12-23 | Blind fastener device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08630733A GB2199914A (en) | 1986-12-23 | 1986-12-23 | Blind fastener device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8630733D0 GB8630733D0 (en) | 1987-02-04 |
| GB2199914A true GB2199914A (en) | 1988-07-20 |
Family
ID=10609500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08630733A Pending GB2199914A (en) | 1986-12-23 | 1986-12-23 | Blind fastener device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2199914A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0747023A1 (en) * | 1995-06-07 | 1996-12-11 | United States Surgical Corporation | Orthopedic fastener |
| US5713903A (en) | 1991-03-22 | 1998-02-03 | United States Surgical Corporation | Orthopedic fastener |
| EP0927829A1 (en) * | 1997-12-31 | 1999-07-07 | Jaquar Cars Limited | Expanding bush and captive bolt assembly |
| US5928244A (en) | 1996-10-04 | 1999-07-27 | United States Surgical Corporation | Tissue fastener implantation apparatus and method |
| US5948000A (en) | 1996-10-03 | 1999-09-07 | United States Surgical Corporation | System for suture anchor placement |
| US5993459A (en) | 1996-10-04 | 1999-11-30 | Larsen; Scott | Suture anchor installation system with insertion tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB840741A (en) * | 1957-01-03 | 1960-07-13 | Bayliss Jones And Bayliss Ltd | Improvements relating to anchor bolts |
| GB873980A (en) * | 1956-09-20 | 1961-08-02 | Fischer Arthur | Improvements relating to expansion plugs |
| GB1045161A (en) * | 1963-02-07 | 1966-10-12 | Bayliss Jones & Bayliss Ltd | Improvements relating to anchor bolts |
| GB1107814A (en) * | 1964-05-22 | 1968-03-27 | Fischer Artur | A wall plug arrangement |
| GB1288543A (en) * | 1969-01-28 | 1972-09-13 | ||
| EP0019782A2 (en) * | 1979-05-31 | 1980-12-10 | Albert Berner GmbH & Co KG | Metal-shell dowel |
| EP0112160A1 (en) * | 1982-12-15 | 1984-06-27 | Olin Corporation | Masonry anchors |
| EP0133037A1 (en) * | 1983-07-27 | 1985-02-13 | Alanberry Products Limited | Fastener |
-
1986
- 1986-12-23 GB GB08630733A patent/GB2199914A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB873980A (en) * | 1956-09-20 | 1961-08-02 | Fischer Arthur | Improvements relating to expansion plugs |
| GB840741A (en) * | 1957-01-03 | 1960-07-13 | Bayliss Jones And Bayliss Ltd | Improvements relating to anchor bolts |
| GB1045161A (en) * | 1963-02-07 | 1966-10-12 | Bayliss Jones & Bayliss Ltd | Improvements relating to anchor bolts |
| GB1107814A (en) * | 1964-05-22 | 1968-03-27 | Fischer Artur | A wall plug arrangement |
| GB1288543A (en) * | 1969-01-28 | 1972-09-13 | ||
| EP0019782A2 (en) * | 1979-05-31 | 1980-12-10 | Albert Berner GmbH & Co KG | Metal-shell dowel |
| EP0112160A1 (en) * | 1982-12-15 | 1984-06-27 | Olin Corporation | Masonry anchors |
| EP0133037A1 (en) * | 1983-07-27 | 1985-02-13 | Alanberry Products Limited | Fastener |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713903A (en) | 1991-03-22 | 1998-02-03 | United States Surgical Corporation | Orthopedic fastener |
| EP0747023A1 (en) * | 1995-06-07 | 1996-12-11 | United States Surgical Corporation | Orthopedic fastener |
| US5948000A (en) | 1996-10-03 | 1999-09-07 | United States Surgical Corporation | System for suture anchor placement |
| US5928244A (en) | 1996-10-04 | 1999-07-27 | United States Surgical Corporation | Tissue fastener implantation apparatus and method |
| US5993459A (en) | 1996-10-04 | 1999-11-30 | Larsen; Scott | Suture anchor installation system with insertion tool |
| EP0927829A1 (en) * | 1997-12-31 | 1999-07-07 | Jaquar Cars Limited | Expanding bush and captive bolt assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8630733D0 (en) | 1987-02-04 |
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