Feed mechanism for drilling systems

Details Feed mechanism for drilling systems Feed mechanism for drilling systems

E - Fixed Constructions

21

B

E21B 7/02 (2006.01) E21B 3/02 (2006.01) E21B 15/04 (2006.01)

Patent

CA 2735906

A cartridge feed screw nut includes a body having a tubular threaded opening defined therein and having side portions. The side portions include a plurality of lateral surfaces and a plurality of end surfaces. The lateral surfaces and the end surfaces form a profile shaped to prevent rotation of the cartridge feed screw nut relative to a front washer cylinder through engagement between at least one of the lateral surfaces or the end surfaces with the front washer cylinder.

L'invention porte sur un écrou de vis d'avance de cartouche qui comprend un corps ayant une ouverture tubulaire taraudée définie dans celui-ci et ayant des parties latérales. Les parties latérales comprennent une pluralité de surfaces latérales et une pluralité de surfaces d'extrémité. Les surfaces latérales et les surfaces d'extrémité forment un profil dimensionné pour empêcher la rotation de l'écrou de vis d'avance de cartouche par rapport à un cylindre de rondelle avant par prise entre au moins l'une des surfaces latérales ou des surfaces d'extrémité avec le cylindre de rondelle avant.

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