초록 ▼

A tube extracting apparatus is provided for extracting tubes from structures, such as condensers, evaporators, and the like. The apparatus is compact and relatively lightweight and thus easy to maneuver in confined spaces to extract a tube. The apparatus generally comprises a housing assembly housin

A tube extracting apparatus is provided for extracting tubes from structures, such as condensers, evaporators, and the like. The apparatus is compact and relatively lightweight and thus easy to maneuver in confined spaces to extract a tube. The apparatus generally comprises a housing assembly housing a reciprocative pull shaft to which is connected a gripping assembly for gripping the tube. A retention assembly is provided for momentarily retaining a portion of the gripping assembly in place during the initial reciprocative movement to ensure the gripping assembly securely grips the tube, and a unidirectional check assembly is provided to prevent the tube from being pushed back into the structure during the reciprocating movement.

대표청구항 ▼

A tube extracting apparatus, comprising: a pull shaft having opposite end portions and being reciprocative between an extended position and a retracted position, a compression member being connected to one of said end portions of said pull shaft for reciprocative movement therewith between said exte

A tube extracting apparatus, comprising: a pull shaft having opposite end portions and being reciprocative between an extended position and a retracted position, a compression member being connected to one of said end portions of said pull shaft for reciprocative movement therewith between said extended and said retracted positions, and a collet member being disposed with said compression member for reciprocative movement therewith between said extended and said retracted positions, and having an engageable gripping means for gripping radially inwardly when engaged, said compression member having a compressing means generally peripherally disposed about said gripping means for compressively engaging said gripping means when moving from said extended position to said retracted position and for disengaging said gripping means when moving from said retracted position to said extended position, whereby a tube inserted in said gripping means is continuously extracted by the reciprocative movement of said gripping means from said extended position to said retracted position wherein said compressing means compresses said gripping means against the tube, and from said retracted position to said extended position wherein said compressing means disengages from said gripping means.