Patent ID: 9248561
Filing Date: 2016-02-02
CPC Classification: B25B,Y10T

Claim Text:
1. A tool for extracting a stuck member, comprising: a tapered first portion configured to translate a rotational force to the stuck member; a second portion connecting with the first portion and configured to translate the rotational force to the first portion; a planar tip at a tapered end of the first portion and perpendicular to a central axis passing through the first portion and the second portion; a plurality of left-handed splines extending helically around the central axis from the tip toward the second portion; a driver engaged with the second portion and configured to receive the rotational force from a mechanical manipulator; a leak seal connected to the driver and configured to form a seal around the stuck member and at least a portion of the driver and prevent gases opposite the stuck member from escaping through an opening created by extraction of the stuck member; and a gas capture port connecting with the leak seal.