Universal tool for removing broken threaded fasteners
AssigneeBeydler CNC
InventorsScott A. Beydler, Andrea M. Beydler
Life of this patent
Estimating the term…
Abstract
A guide for drilling holes into broken threaded fasteners includes an oblong bar having a stepped slot along its length and a drill guide at one end. Securing sliders travel along the stepped slot and are secured to a structure to be repaired by threaded fasteners through the sliders. Once secured with the drill guide aligned over the broken threaded fastener (possibly with the assistance of an optical sighting device to mark the central axis of the drill guide), the operator drills through the drill guide and into the broken fastener. The tool is removed and the broken fastener can be extracted by various means.
Claims15
A tool comprising:
- an oblong bar having a width, a length and a thickness measured from a top surface to an opposite bottom surface, with a stepped slot formed along most but not all of the length and fully through the thickness so that a wider portion of the stepped slot is exposed on the top surface and a narrower portion of the stepped slot is exposed on the bottom surface,
- the oblong bar further having a bevel relief extending at least half-way up the thickness of the oblong bar so that the bottom surface of the oblong bar is narrower than the top surface of the oblong bar;
- a drill guide at one end of the oblong bar;
- an oval securing slider sized to travel along the stepped slot in a direction of the length of the oblong bar, said oval securing slider having a hole;
- and
- a threaded fastener received in the hole of the oval securing slider, said threaded fastener sized and shaped to hold the oval securing slider in the stepped slot, and to hold the bottom surface of the oblong bar with the oval securing slider in the stepped slot against a face of a structure to be repaired.
Dependencies are inferred from the claim text.