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US 9,624,770 B2Granted
Self-undercut anchor system
OwnerRobert Cousineauinventor
Life of this patent
Estimating the term…
Abstract
The self-undercut anchor with carbide tip is designed to create a drill hole and enlarging the lowermost end of said drill hole by means of a carbide tip or cutting portion. The carbide tip or cutting portion is positioned in such a way so as to not obstruct the setting of the anchor by means of the spreading lamellae. Once said lamellae have been positioned properly and forced downward, the self-undercut anchor is set in place.
Claims18
A self-undercut expansion anchor for enlarging a lowermost end of a bore hole, the self-undercut anchor comprising:
- a. a drill connector portion operatively connected to a drill;
- b. a setting tool connected to the drill connector portion, said setting tool having a lower setting tool portion comprised of a central opening on an underside thereof;
- c. a threaded drill rod sized to fit into the bore hole, said threaded drill rod further comprising:
- i. an upper end, inserted into the central opening of the lower setting tool portion and engaged with the setting tool;
- and,
- ii. a lower end;
- d. a bore hole sleeve positioned on the threaded drill rod to be slid into the bore hole;
- e. an anchor positioned on the threaded drill rod and connected to the bore hole sleeve to be slid into the bore hole;
- and,
- f. a cutting tip portion connected to the lower end of the threaded drill rod and engaged with the anchor for enlarging a lowermost end of the bore hole.
7 more elements
Dependencies are inferred from the claim text.