Tapping screw

Details Tapping screw Tapping screw

2006-08-15

2006-08-15

Saether, Flemming (Department: 3677)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Externally threaded fastener element, e.g., bolt, screw, etc.

Reexamination Certificate

active

07090452

ABSTRACT:
A tapping screw includes a head, a shank and a cutting member, Said the shank has male threads, and the cutting member extends down from the shank and has a plurality of cutting grooves lengthwise formed and/or a plurality of wings also lengthwise formed; an annular groove is further provided between the shank and the cutting groove for wood waste cut out of a drilled hole of an object to move out smoothly and quickly, so the sharpness of the cutting member and the pointed end may be kept usual, and resistance against drilling and fixing of the screw may be reduced.

REFERENCES:
patent: 3094894 (1963-06-01), Broberg
patent: 3665801 (1972-05-01), Gutshall
patent: 4028987 (1977-06-01), Wilson
patent: 4386882 (1983-06-01), Bereiter
patent: 4480951 (1984-11-01), Regensburger
patent: 5190425 (1993-03-01), Wieder et al.
patent: 6887023 (2005-05-01), Lu et al.

Affiliated with

Also associated with

Rating

Tapping screw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tapping screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tapping screw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3672224