Puller

A puller for pulling an element from an assembly to which it is fitted;

• the element having an inner-facing face;
• said puller comprising:
• a central body having a longitudinal axis and including:
• an outer portion;
• an inner portion;
• and
• a circumferential threaded portion on said outer portion of said body;
• an adjustment nut threaded on said threaded portion for moving longitudinally with rotation of said nut;
• follower means coupled to said nut and said body for moving longitudinally with longitudinal movement of said nut;
• a plurality of leg assemblies, each including:
• two legs including:
• an outer leg;
• and
• an inner leg;
• and
• a foot having a longitudinal axis parallel to said longitudinal axis of said body;
• said foot including:
• an outer portion;
• and
• an inner portion including:
• one or more radial flanges, each flange having an outer-facing engagement surface at a predetermined orientation to said longitudinal axis of said foot;
• said engagement surface for bearing against the inner-facing face of the element to be pulled;
• each said leg having a body end pivotly connected to said body and a foot end pivotly connected to said foot so as to form a parallelogram such that, as said legs pivot, said longitudinal axis of said foot remains parallel to said longitudinal axis of said body and said engagement surface of said radial flange remains at the predetermined orientation;
• and
• an arm for each leg assembly including:
• an outer end pivotly connected to said follower means;
• and
• an inner end pivotly connected to said leg assembly for pivoting said leg assemblies upon rotation of said nut such that said foot moves toward and away from said longitudinal axis of said body.