Device including a screw pin and a driven member for screwing th

Details Device including a screw pin and a driven member for screwing th Device including a screw pin and a driven member for screwing th

1984-11-15

1985-11-19

Peshock, Robert

Dentistry

Method or material for testing, treating, restoring, or...

Anchor pin

A61C 504

Patent

active

045539421

ABSTRACT:
An axially extending screw pin to be screwed into a tooth has a threaded part and an engagement part with a slot in one end. The slot extends in the axial direction of the pin toward the threaded part with the axially extending surfaces of the slot converging inwardly toward its base which has a concave, semi-circular surface. The converging sides are convex surfaces defining a quarter arc of a circle. A driven member with an engagement projection at one end shaped complementary to the slot, is disengageably connectible with the screw pin. A gripping member is axially displaceable positioned on the engagement projection end of the driven member. The gripping member is freely rotatable relative to the driven member and has resilient gripping tongues for holding a screw pin relative to the driven member. The driven member is mounted in a drive member so that is can be rotated about its axis. With the screw pin held by the gripping member, the engagement projection is inserted into the slot and threads the screw pin into a tooth. When a stop on the screw pin engages the tooth after it has been driven in for a given depth, the engagement projection backs out of the slot discontinuing the driving action.

REFERENCES:
patent: 3434209 (1969-03-01), Weissman
patent: 4449937 (1984-05-01), Weissman

Affiliated with

Also associated with

Rating

Device including a screw pin and a driven member for screwing th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device including a screw pin and a driven member for screwing th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device including a screw pin and a driven member for screwing th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-81529