专利名称：Packing tube assembly for pumping wells发明人：Geoffrey F. Towner,Charles A. Carter申请号：US06/874657申请日：19860616公开号：US04694910A公开日：19870922
摘要：A packing tube assembly which can easily be substituted for the conventionalstuffing box on typical pumping wells to substantially increase the operational life of thepacking involved. The assembly includes a mounting bushing for the packing tube havinga tapered bore therein by which the rod on which the packing is mounted can beremoved and reinserted from the top of the well without removing the packing tube.
申请人：TEXAUST AUSTRALIA LIMITED
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