Patent ID: 9291029
Filing Date: 2016-03-22
CPC Classification: E21B

Claim Text:
1. An anchor mechanism for use in a well, the anchor mechanism comprising: a housing with a plurality of openings; the openings being evenly distributed along the circumference of the housing and each opening being arranged to narrowly house a radially movable slip; the slip including first and second end portions, a gripping side facing a well wall, the gripping side being provided with a plurality of teeth, an underside facing the opposite direction, two side faces extending from the gripping side to the underside and to two end faces; the slip being provided, at first and second end portions, with a first inclined face and a second inclined face substantially sloping from the end faces towards the middle portion of the slip on the underside; the slip being provided, on its end faces, with laterally projecting tongues which have a longitudinal direction parallel to the inclined faces; the slip being provided, on two side faces, with guide portions exhibiting a longitudinal direction perpendicular to the longitudinal direction of the slip and the guide portions complementarily fitting an inward-facing guide in the housing; and the anchor mechanism further being provided with first and second axially movable slip cones, the slip cones being surrounded in a portion of the housing; the slip cones being provided with inclined faces which, in their position of application, are arranged to rest against the inclined faces of the slip, the slip cones further being provided with a plurality of grooves, each groove being arranged to house one tongue, wherein the housing is constituted by a first housing half and a second housing half.