DEVICE TO WITHDRAW OBJECTS FROM CHANNELS Russian patent published in 2010 - IPC B25J11/00 

FIELD: transport.

SUBSTANCE: invention relates to rescue and reclamation operations and can be sued to withdraw objects from narrow channels and crevices in blockages. Proposed device comprises flexible casing with its one end connected with tip and another one serves to withdraw object from the channel. Said tip has piston chamber and rod. Said piston chamber is communicated with sealed chamber furnished with heater and filled with fluid that features high thermal expansion factor. Gripping element is arranged on the tip and represents a fixed jaw rigidly jointed with the tip and moving jaw fitted on guide and arranged between fixed jaw and drive casing to move there along toward fixed jaw, driven by rod.

EFFECT: possibility of withdraw blocked objects in constrained conditions.

9 cl, 7 dwg