Claims
- 1. A drive nut to be used in a fastener assembly comprising:
a body having a first end, a second end, and an outer surface adapted for engagement by a driving tool; a smooth bore extending through the body; and a plurality of protruding nibs extending from either the first end or the second end.
- 2. The drive nut according to claim 1 wherein the nibs have an engaging surface and a driving surface that are adapted for engaging a recess in a fastener.
- 3. The drive nut according to claim 1 wherein the engaging surface of the nibs is angled relative to the driving surface.
- 4. The drive nut according to claim 1 wherein the engaging surface of the nibs is flat relative to the driving surface.
- 5. The drive nut according to claim 1 wherein at least one of the nibs has a rectangular shape.
- 6. The drive nut according to claim 1 wherein the smooth bore has an angled portion.
- 7. A blind fastener comprising:
a screw having a plurality of external threads and a head positioned at an end of the screw; a sleeve having a deformable sleeve face positioned at the end of the screw adjacent the head; a nut having a plurality of internal threads, an enlarged nut head positioned at an end of the nut, and a driving recess positioned within the enlarged nut head, wherein an end opposite the nut head is positioned on the screw adjacent to the sleeve; and a drive nut having a smooth bore positioned on the screw adjacent the nut having an outer surface adapted for engagement by a driving tool and a plurality of protruding nibs extending from an end of the drive nut for engaging the driving recess of the nut.
- 8. The blind fastener of claim 7 wherein the smooth bore of the drive nut has an angled portion.
- 9. The blind fastener according to claim 7 further comprising a device for engaging the drive nut and the screw to hold the drive nut to the screw.
- 10. The blind fastener according to claim 8 wherein the device is an angled insert.
- 11. The blind fastener according to claim 9 wherein the device is an adhesive.
- 12. The blind fastener according to claim 7 wherein at least one of the nibs of the drive nut has a rectangular configuration and the drive nut and the nut are made from a non-deformable material.
- 13. A method for assembling a fastener system comprising the steps of:
threading a sleeve onto a screw; threading a nut having a plurality of internal threads and a head having a driving recess onto the screw adjacent the sleeve; positioning a drive nut having a smooth bore and a plurality of protruding nibs extending from an end of the drive nut onto the nut so that the protruding nibs are aligned and matingly engaged into the driving recess of the nut; and placing an engaging device adjacent the drive nut to retain the drive nut on the screw.
- 14. The method of claim 13 further comprising the step of dimpling an outer surface of the nut so that the nut is secured onto the screw.
- 15. The method of claim 13 wherein the engaging device is an angled insert which engages an angled portion of the smooth bore in the drive nut.
- 16. The method of claim 13 wherein the placing an engaging device comprises applying an adhesive between the smooth bore of the drive nut and the screw.
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application is a continuation-in-part of U.S. patent application Ser. No. 09/825,711 filed Apr. 4, 2001, which claims priority from Provisional application Ser. No. 60/232,336 filed Sep. 13, 2000.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60232336 |
Sep 2000 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09825711 |
Apr 2001 |
US |
Child |
09849184 |
May 2001 |
US |