APPARATUS FOR RECORDING A PHYSICAL IMPRESSION OF AN OBJECT DOWN AN OIL WELL

摘要

A reusable apparatus for making a physical impression of an object lodged down an oil well. A rod support is positioned in a housing. A plurality of rods are fractionally engaged and supported by the rod support in an orientation parallel to a longitudinal axis of the housing. Each of the rods is independently axially movable from a starting position to an impression position. Movement of the rods from the starting position to the impression position is effected by bringing the rods into contact with an object with sufficient force to overcome the frictional engagement with the rod support. The rods are returnable to the starting position in preparation for subsequent use.