Improved tool for removal of plastics material

Details Improved tool for removal of plastics material Improved tool for removal of plastics material

A - Human Necessities

61

B

A61B 17/22 (2006.01) A61B 17/56 (2006.01) A61F 2/46 (2006.01) A61N 7/00 (2006.01)

Patent

CA 2116235

A toot for use in removing plastics material from a hole comprises a work surface adapted to contact the material. Piezo electric transducer means operatively connected through a work horn to the work surface cause it to vibrate ultrasonically and thereby to heat locally the plastics material. A cavity is adapted to receive beated plastics material. The cavity is connected to a working zone adjacent the work surface. The work surface comprises an elongate boring member and rearwardly thereof a sub- stantially annular cutting edge, said working zone being connected to said cavity means by means of apertures disposed between said boring member and said annular cutting edge.

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