CA2241832A1 - Fastener with planar coil - Google Patents
Fastener with planar coil Download PDFInfo
- Publication number
- CA2241832A1 CA2241832A1 CA 2241832 CA2241832A CA2241832A1 CA 2241832 A1 CA2241832 A1 CA 2241832A1 CA 2241832 CA2241832 CA 2241832 CA 2241832 A CA2241832 A CA 2241832A CA 2241832 A1 CA2241832 A1 CA 2241832A1
- Authority
- CA
- Canada
- Prior art keywords
- shaft
- fastener
- screw
- planular
- helical coil
- 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.)
- Abandoned
Links
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 32
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 32
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 239000012815 thermoplastic material Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 9
- 239000012858 resilient material Substances 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004575 stone Substances 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
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
-
- 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
- F16B39/30—Locking exclusively by special shape of the screw-thread
Abstract
A fastener includes a shaft, means for turning said shaft presented at one end of said shaft, and planular helical coil disposed along said shaft. The fastener provides for a construction that is adaptable for creating a releasable attachment with a target member comprising a soft buoyant resilient material such as a thermoplastic foam.
Description
-I-Description FASTENER WITH PLANULAR COIL
Field of Invention This invention relates generally to a fastener releasably securable to a target member, and more particularly to a screw releasably securable to a thermoplastic member.
Background Art Screws releasably securable to wooden, stone, or metal target members are well known. In their conventional embodiment, said screws generally comprise a shaft, turning means disposed at one end of said shaft, and thread co-axially disposed on said shaft.
However, said conventional screws cannot be adequately secured in a releasable fashion to certain target members having a particular shape, orientation or composition.
Consequently, specialized attaching structures have been developed and made known.
For example, U.S. Patent No. 4,463,753 discloses a compression bone screw for repairing a fibular bone fracture having a shaft, tool interengaging means at one end of said shaft, distal thread disposed at the distal portion of said shaft, intermediate portion of said shaft having a substantially smooth surface, and proximal thread disposed at the proximal portion of said shaft.
U.S. Patent No. 4,403,895 provides for a retainer for securing a floor mat to the carpet layer and padding layer, if any, installed on the floor of a vehicle.
Said retainer includes a tapered shank having a self-piercing point at its lower end;
external spiral high lead disposed along said shank; partial shoulder adjacent to the lower end of said shank; and full shoulder adjacent the upper end of said shank. Since the distance between said partial shoulder and said full shoulder is less than the thickness of said carpet layer, said carpet layer is compressed between said partial shoulder and said full shoulder to create a demountable attachment between said carpet layer and said retainer when said retainer is rotated into said carpet layer.
Field of Invention This invention relates generally to a fastener releasably securable to a target member, and more particularly to a screw releasably securable to a thermoplastic member.
Background Art Screws releasably securable to wooden, stone, or metal target members are well known. In their conventional embodiment, said screws generally comprise a shaft, turning means disposed at one end of said shaft, and thread co-axially disposed on said shaft.
However, said conventional screws cannot be adequately secured in a releasable fashion to certain target members having a particular shape, orientation or composition.
Consequently, specialized attaching structures have been developed and made known.
For example, U.S. Patent No. 4,463,753 discloses a compression bone screw for repairing a fibular bone fracture having a shaft, tool interengaging means at one end of said shaft, distal thread disposed at the distal portion of said shaft, intermediate portion of said shaft having a substantially smooth surface, and proximal thread disposed at the proximal portion of said shaft.
U.S. Patent No. 4,403,895 provides for a retainer for securing a floor mat to the carpet layer and padding layer, if any, installed on the floor of a vehicle.
Said retainer includes a tapered shank having a self-piercing point at its lower end;
external spiral high lead disposed along said shank; partial shoulder adjacent to the lower end of said shank; and full shoulder adjacent the upper end of said shank. Since the distance between said partial shoulder and said full shoulder is less than the thickness of said carpet layer, said carpet layer is compressed between said partial shoulder and said full shoulder to create a demountable attachment between said carpet layer and said retainer when said retainer is rotated into said carpet layer.
Said conventional screws are not an effective means for creating a releasable attachment with a target member comprised of a soft buoyant resilient material such as a thermoplastic foam because of the relatively low structural integrity of soft buoyant resilient materials such as thermoplastic foam. Consequently, there is a need for a fastener having a construction that is particularly applied to create a releasable attachment with a target member comprising a soft buoyant resilient material such as a thermoplastic foam.
Disclosure of Invention In accordance with one aspect of the invention, there is provided a fastener releasably securable to a target member comprising a shaft, means for turning said shaft presented at one end of said shaft, and planular helical coil disposed along said shaft.
In accordance with another aspect of the present invention, there is provided a screw releasably securable to a thermoplastic member comprising a shaft rotatable about an axis of rotation, head which includes a turning means at one end of said shaft, and planular helical coil co-axially mounted on said shaft.
In accordance with still another aspect of the invention, there is provided a screw releasably securable to a thermoplastic member comprising a rotatable shaft;
head disposed at one end of said shaft which includes a turning means for turning said shaft in a first direction to secure said screw in to said thermoplastic member and for turning said shaft in a second direction to release said shaft from said thermoplastic member; said shaft including a locking ridge to inhibit rotation of said screw in said second direction when said thermoplastic member is engaged by said screw; and at least one planular helical coil disposed on said shaft which includes a rounded helical edge to minimize destructure of said thermoplastic member; and locking means comprising a straight radial edge disposed on said planular helical coil which further impedes rotation of said screw in said second direction.
In accordance with a further aspect of the invention, a screw releasably securable to a thermoplastic member comprising a shaft rotatable about an axis of rotation, means for turning said shaft at one end of said shaft, surface disposed outwardly from said shaft to define a helical edge for insertion into said thermoplastic member, and wherein said surface resists axial withdrawal of said screw from said thermoplastic member.
Disclosure of Invention In accordance with one aspect of the invention, there is provided a fastener releasably securable to a target member comprising a shaft, means for turning said shaft presented at one end of said shaft, and planular helical coil disposed along said shaft.
In accordance with another aspect of the present invention, there is provided a screw releasably securable to a thermoplastic member comprising a shaft rotatable about an axis of rotation, head which includes a turning means at one end of said shaft, and planular helical coil co-axially mounted on said shaft.
In accordance with still another aspect of the invention, there is provided a screw releasably securable to a thermoplastic member comprising a rotatable shaft;
head disposed at one end of said shaft which includes a turning means for turning said shaft in a first direction to secure said screw in to said thermoplastic member and for turning said shaft in a second direction to release said shaft from said thermoplastic member; said shaft including a locking ridge to inhibit rotation of said screw in said second direction when said thermoplastic member is engaged by said screw; and at least one planular helical coil disposed on said shaft which includes a rounded helical edge to minimize destructure of said thermoplastic member; and locking means comprising a straight radial edge disposed on said planular helical coil which further impedes rotation of said screw in said second direction.
In accordance with a further aspect of the invention, a screw releasably securable to a thermoplastic member comprising a shaft rotatable about an axis of rotation, means for turning said shaft at one end of said shaft, surface disposed outwardly from said shaft to define a helical edge for insertion into said thermoplastic member, and wherein said surface resists axial withdrawal of said screw from said thermoplastic member.
Brief Description of Drawings Fig. 1 is a side view of the first preferred embodiment of the fastener;
Fig. 2 is a side view of the first preferred embodiment of the fastener at a 45-degree angle;
Fig. 3 is a side view of the second preferred embodiment of the fastener.
Fig. 4 is a cross-sectional view of the planular helical coil of said fastener at a point of the shaft adjacent to the lower extremity of said planular helical coil.
Fig. 5 is a partial side view of the fastener in which the turning means has wings.
Fig. 6 is a top view of the turning means of the fastener showing variations of the turning socket thereof.
Fig. 7 is a partial side view of the fastener in which the bottom of the turning means includes a plurality of spikes for biting into the surface of the target member.
Best Mode for Carrying Out the Invention In the description which follows, like parts are marked throughout the specification and the drawings with the same respective reference numerals. The drawings are not necessarily to scale and in some instances proportions may have been exaggerated in order to more clearly depict certain features of the invention.
Referring to Fig. 1 there is illustrated in a side view, a fastener 10 in accordance with the first preferred embodiment of the present invention. Said fastener 10 includes a shaft 12, turning means 14 presented at one end of said shaft 12 adjacent to the top of said shaft 12 for turning said shaft, planular helical coil 16 disposed along said shaft, and shaft end 18 presented at another end of said shaft 12. Said shaft end 18 can be pointed, as in the case of the first preferred embodiment of the fastener shown in Fig. 1, or rounded or straight, as the case may be.
When said shaft end 18 is brought into contact with a target member 15 comprising a soft buoyant resilient material such as a thermoplastic foam, if said fastener 10 is turned in a first direction, the same is rotated into said target member 15. When said fastener is turned in a second direction, said fastener is rotated out of said target member 15.
Fig. 2 is a side view of the first preferred embodiment of the fastener at a 45-degree angle;
Fig. 3 is a side view of the second preferred embodiment of the fastener.
Fig. 4 is a cross-sectional view of the planular helical coil of said fastener at a point of the shaft adjacent to the lower extremity of said planular helical coil.
Fig. 5 is a partial side view of the fastener in which the turning means has wings.
Fig. 6 is a top view of the turning means of the fastener showing variations of the turning socket thereof.
Fig. 7 is a partial side view of the fastener in which the bottom of the turning means includes a plurality of spikes for biting into the surface of the target member.
Best Mode for Carrying Out the Invention In the description which follows, like parts are marked throughout the specification and the drawings with the same respective reference numerals. The drawings are not necessarily to scale and in some instances proportions may have been exaggerated in order to more clearly depict certain features of the invention.
Referring to Fig. 1 there is illustrated in a side view, a fastener 10 in accordance with the first preferred embodiment of the present invention. Said fastener 10 includes a shaft 12, turning means 14 presented at one end of said shaft 12 adjacent to the top of said shaft 12 for turning said shaft, planular helical coil 16 disposed along said shaft, and shaft end 18 presented at another end of said shaft 12. Said shaft end 18 can be pointed, as in the case of the first preferred embodiment of the fastener shown in Fig. 1, or rounded or straight, as the case may be.
When said shaft end 18 is brought into contact with a target member 15 comprising a soft buoyant resilient material such as a thermoplastic foam, if said fastener 10 is turned in a first direction, the same is rotated into said target member 15. When said fastener is turned in a second direction, said fastener is rotated out of said target member 15.
As best shown in Fig. 2, said planular helical coil 16 includes a cutting edge disposed at the distal end 21 of said planular helical coil 16 for cutting into the target member 15 comprised of a soft buoyant resilient material such as a thermoplastic foam.
When said fastener 10 is brought into contact with said target member 15 comprising a soft buoyant resilient material such as a thermoplastic foam and turned in said first direction, said cutting edge 20 cuts in to said target member 15, consequently, said fastener 10 can be rotated into said target member comprising a soft buoyant resilient material such as a thermoplastic foam.
As shown in Fig. 2, said planular helical coil 16 further includes a locking means 22 consisting of a straight radial edge disposed at the proximal end 23 of said planular helical coil 16. Said locking means 22 inhibits the turning of said fastener 10 in said second direction once said fastener 10 has been rotated into said target member 15 because the soft buoyant resilient material, such as a thermoplastic foam, comprising said target member 15 decompresses adjacent to said locking means 22 so as to present a blocking mass impeding rotation of said fastener 10 in said second direction.
As best shown in Fig. 1, said planular helical coil 16 also includes a rounded helical edge 24 for biting into said target member 15 when said fastener 10 is rotated into said target member 15 to minimize destructure of said target member.
Said shaft 12 can be smooth, as shown in Figs. 1 and 2, or threaded as shown in Fig.
3. In addition, as best shown in Fig. 4 which shows a cross-sectional view of said fastener, said shaft 12 can be fashioned to include a locking ridge 26 which further impedes rotation of said fastener in said second direction.
As shown in Fig. 5, said turning means 14 can be adapted to include wings 27 to facilitate manual rotation of said fastener 10 without the use of a tool such as a screw driver for rotating said fastener 10. In addition, as shown in Fig. 6, said turning means 14 can be modified to include various forms of sockets. Lastly, said turning means 14 can be further adapted to include a means for biting into the surface of said target member when said fastener is rotated into said target member, such as a plurality of spikes 28 shown in Fig. 7 which extend downwardly from the bottom of said turning means 14 and are spaced apart from said shaft 12. Said spikes 28 engage the surface of said target member when said fastener is fully rotated into said target member so as to further secure the attachment of said fastener to said target member.
Both the first and second preferred embodiment of the present invention shown in Figs. 1, 2, and 3 include one planular helical coil disposed adjacent to the distal end 11 of said shaft 12. However, other embodiments of the fastener are contemplated in which said planular helical coil is disposed at an intermediate position along said shaft 12, for example, adjacent to the proximal end 13 of said shaft 12. The invention disclosed herein is also adaptable to include more than one planular helical coil disposed along said shaft 12, for example, one planular helical coil at said distal end 11 end of said shaft and another planular helical coil at the proximal end 13 of said shaft.
Various embodiments of the invention have now been described in detail. Since changes in and/or additions to the above-described best mode may be made without departing from the nature, spirit or scope of the invention, the invention is not to be limited to said details.
When said fastener 10 is brought into contact with said target member 15 comprising a soft buoyant resilient material such as a thermoplastic foam and turned in said first direction, said cutting edge 20 cuts in to said target member 15, consequently, said fastener 10 can be rotated into said target member comprising a soft buoyant resilient material such as a thermoplastic foam.
As shown in Fig. 2, said planular helical coil 16 further includes a locking means 22 consisting of a straight radial edge disposed at the proximal end 23 of said planular helical coil 16. Said locking means 22 inhibits the turning of said fastener 10 in said second direction once said fastener 10 has been rotated into said target member 15 because the soft buoyant resilient material, such as a thermoplastic foam, comprising said target member 15 decompresses adjacent to said locking means 22 so as to present a blocking mass impeding rotation of said fastener 10 in said second direction.
As best shown in Fig. 1, said planular helical coil 16 also includes a rounded helical edge 24 for biting into said target member 15 when said fastener 10 is rotated into said target member 15 to minimize destructure of said target member.
Said shaft 12 can be smooth, as shown in Figs. 1 and 2, or threaded as shown in Fig.
3. In addition, as best shown in Fig. 4 which shows a cross-sectional view of said fastener, said shaft 12 can be fashioned to include a locking ridge 26 which further impedes rotation of said fastener in said second direction.
As shown in Fig. 5, said turning means 14 can be adapted to include wings 27 to facilitate manual rotation of said fastener 10 without the use of a tool such as a screw driver for rotating said fastener 10. In addition, as shown in Fig. 6, said turning means 14 can be modified to include various forms of sockets. Lastly, said turning means 14 can be further adapted to include a means for biting into the surface of said target member when said fastener is rotated into said target member, such as a plurality of spikes 28 shown in Fig. 7 which extend downwardly from the bottom of said turning means 14 and are spaced apart from said shaft 12. Said spikes 28 engage the surface of said target member when said fastener is fully rotated into said target member so as to further secure the attachment of said fastener to said target member.
Both the first and second preferred embodiment of the present invention shown in Figs. 1, 2, and 3 include one planular helical coil disposed adjacent to the distal end 11 of said shaft 12. However, other embodiments of the fastener are contemplated in which said planular helical coil is disposed at an intermediate position along said shaft 12, for example, adjacent to the proximal end 13 of said shaft 12. The invention disclosed herein is also adaptable to include more than one planular helical coil disposed along said shaft 12, for example, one planular helical coil at said distal end 11 end of said shaft and another planular helical coil at the proximal end 13 of said shaft.
Various embodiments of the invention have now been described in detail. Since changes in and/or additions to the above-described best mode may be made without departing from the nature, spirit or scope of the invention, the invention is not to be limited to said details.
Claims (20)
1. A fastener releasably securable to a target member comprising:
(a) a shaft;
(b) means for turning said shaft presented at one end of said shaft; and (c) planular helical coil disposed along said shaft.
(a) a shaft;
(b) means for turning said shaft presented at one end of said shaft; and (c) planular helical coil disposed along said shaft.
2. A fastener as claimed in claim 1, wherein another end of said shaft presents a distal end and wherein said planular helical coil is disposed at said distal end of said fastener.
3. A fastener as claimed in claim 1, wherein said planular helical coil presents a proximal and a distal end, said distal end in the region remote from said turning means and wherein said fastener further includes a cutting means comprising a cutting edge disposed at the distal end of said planular helical coil.
4. A fastener as claimed in claim 1, further comprising a locking means disposed at said proximal end of said planular helical coil.
5. A fastener as claimed in claim 4, wherein said locking means consists of a straight radial edge disposed at said proximal end of said planular helical coil.
6. A fastener as claimed in claim 1, wherein said planular helical coil has a rounded helical edge for biting into said target member to minimize destructure of said target member.
7. A fastener as claimed in claim 1, wherein said fastener is securable when turning said shaft in a first direction and releasable when turning said shaft in a second direction.
8. A fastener as claimed in claim 7, wherein said shaft includes a locking ridge for impeding rotation of said fastener in said second direction.
9. A fastener as claimed in claim 1, wherein said shaft is pointed.
10. A fastener as claimed in claim 1, wherein said shaft is threaded.
11. A fastener as claimed in claim 1, wherein said target member is comprised of a thermoplastic material.
12. A screw releasably securable to a thermoplastic member comprising:
(a) a shaft rotatable about an axis of rotation;
(b) head which includes a turning means at one end of said shaft;
(c) planular helical coil co-axially mounted on said shaft;
(a) a shaft rotatable about an axis of rotation;
(b) head which includes a turning means at one end of said shaft;
(c) planular helical coil co-axially mounted on said shaft;
13. A screw as claimed in claim 12, wherein said planular helical coil is disposed along said shaft.
14. A screw as claimed in claim 12, which includes a locking means comprising a straight radial edge disposed on said planular helical coil to inhibit rotation of said screw when said thermoplastic member is engaged by said screw.
15. A screw as claimed in claim 12, wherein said planular helical coil has a rounded helical edge to minimize destructure of said thermoplastic member when said shaft is rotated into said thermoplastic member.
16. A screw as claimed in claim 12, wherein said shaft includes a locking ridge for inhibiting rotation of said screw when said thermoplastic member is engaged by said screw.
17. A screw as claimed in claim 12, wherein said shaft is pointed.
18. A screw as claimed in claim 12, wherein said shaft is threaded.
19. A screw releasably securable to a thermoplastic member comprising:
(a) a rotatable shaft;
(b) head disposed at one end of said shaft which includes a turning means for turning said shaft in a first direction to secure said screw in to said thermoplastic member and for turning said shaft in a second direction to release said shaft from said thermoplastic member;
(c) said shaft including a locking ridge to inhibit rotation of said screw when said thermoplastic member is engaged by said screw; and (d) at least one planular helical coil disposed on said shaft which includes:
(i) a rounded helical edge to minimize destructure of said thermoplastic member; and (ii) locking means comprising a straight radial edge disposed on said planular helical coil which impedes rotation of said screw in said second direction.
(a) a rotatable shaft;
(b) head disposed at one end of said shaft which includes a turning means for turning said shaft in a first direction to secure said screw in to said thermoplastic member and for turning said shaft in a second direction to release said shaft from said thermoplastic member;
(c) said shaft including a locking ridge to inhibit rotation of said screw when said thermoplastic member is engaged by said screw; and (d) at least one planular helical coil disposed on said shaft which includes:
(i) a rounded helical edge to minimize destructure of said thermoplastic member; and (ii) locking means comprising a straight radial edge disposed on said planular helical coil which impedes rotation of said screw in said second direction.
20. A screw releasably securable to a thermoplastic member comprising:
(a) a shaft rotatable about an axis of rotation;
(b) means for turning said shaft at one end of said shaft;
(c) a surface disposed outwardly from said shaft to define a helical edge for insertion into said thermoplastic member, and wherein said surface resists axial withdrawal of said screw from said thermoplastic member.
(a) a shaft rotatable about an axis of rotation;
(b) means for turning said shaft at one end of said shaft;
(c) a surface disposed outwardly from said shaft to define a helical edge for insertion into said thermoplastic member, and wherein said surface resists axial withdrawal of said screw from said thermoplastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2241832 CA2241832A1 (en) | 1998-06-29 | 1998-06-29 | Fastener with planar coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2241832 CA2241832A1 (en) | 1998-06-29 | 1998-06-29 | Fastener with planar coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2241832A1 true CA2241832A1 (en) | 1999-12-29 |
Family
ID=29409546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2241832 Abandoned CA2241832A1 (en) | 1998-06-29 | 1998-06-29 | Fastener with planar coil |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2241832A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1699993B1 (en) * | 2003-12-24 | 2016-03-09 | Kedge Holding B.V. | Safety device for a fall restraint |
-
1998
- 1998-06-29 CA CA 2241832 patent/CA2241832A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1699993B1 (en) * | 2003-12-24 | 2016-03-09 | Kedge Holding B.V. | Safety device for a fall restraint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5199839A (en) | Fastener screw having improved installation and self-locking characteristics | |
| US5516248A (en) | Low torque wood screw | |
| US5102275A (en) | Deck plate and assembly | |
| AU600096B2 (en) | Anchor for masonry veneer walls | |
| EP0489795B1 (en) | Non-seating plate/fastener assembly | |
| CA2053589C (en) | Roofing fastener and improved screw therefor | |
| CA2172570C (en) | Dual depth socket | |
| US5333976A (en) | Center locking spacing bolt | |
| US2321378A (en) | Combination screw and rivet | |
| US20080092699A1 (en) | Wallboard screw with bi-tapered socket for receiving a bi-tapered screw driver tip | |
| JPS60242249A (en) | Clamp assembly of roof made of flexible material | |
| US20040181227A1 (en) | System and method for attaching a bone plate to bone | |
| US4789282A (en) | Expansion anchor stud | |
| US7273223B2 (en) | Trailer hitch ball | |
| US5122022A (en) | Fastening element for securing insulating strips and/or insulating boards to a solid base structure | |
| AU679157B1 (en) | Easy drive concrete fastener system | |
| CA2241832A1 (en) | Fastener with planar coil | |
| US5722119A (en) | Pulling knob for furniture | |
| GB2186936A (en) | Fastener assembly | |
| EP0997107A3 (en) | Orthopedic lock nut | |
| US20040013494A1 (en) | Fastener having solid driving structure | |
| US6789302B1 (en) | Self-threading fastener for connecting an article to a surface upon movement of the article towards the fastener | |
| US5897279A (en) | Fastener screw with spacer for installing gutters | |
| NZ195635A (en) | Self-drilling fastener:straight flutes define straight cutting edge and curved drag edge | |
| JP3000632U (en) | anchor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |