Abstract: A fishing tool is provided to enable retrieval of a fish from a mineral extraction system. The downhole fishing tool includes a frustoconical member for guiding broken fish such as a broken pipe into a channel created by a sliding car and an edge of a body of the downhole fishing tool. The channel enlarges by sliding the sliding car along the body of the downhole fishing tool. The downhole fishing tool body and sliding car are aligned such that the sliding car slides diagonally across the body of the downhole fishing tool thus creating a larger channel at a first point along the diagonal than at a second point along the diagonal.

Abstract: A fishing tool is provided to enable retrieval of a fish from a mineral extraction system. The downhole fishing tool includes a frustoconical member for guiding broken fish such as a broken pipe into a channel created by a sliding car and an edge of a body of the downhole fishing tool. The channel enlarges by sliding the sliding car along the body of the downhole fishing tool. The downhole fishing tool body and sliding car are aligned such that the sliding car slides diagonally across the body of the downhole fishing tool thus creating a larger channel at a first point along the diagonal than at a second point along the diagonal.

Abstract: A pattern recognizer which uses neuromorphs with a fixed amount of energy that is distributed among the elements. The distribution of the energy is used to form a histogram which is used as a feature vector.

Abstract: An air treatment unit for treatment of an air stream, including a pad having a multitude of narrow air-flow channels, the walls of which are formed by corrugated sheets of a stiff material, the sheets being positioned and fixed generally in parallel planes next to each other in such a way that, as seen from an inlet side of the pad to an outlet side thereof, the channels formed by the corrugations of any two sheets located next to each other extend in two different directions the vertical plane of the respective sheet. At least in a central region of the pad, all sheets are positioned obliquely sideways, whereby all channels extend obliquely sideways relative to inlet and outlet surfaces of the pad.