发明名称 |
Method of securing a rotary cutter to a body of a down hole tool and a rotary cutter assembly |
摘要 |
A rotary cutter assembly constructed in accordance with this method of securing a rotary cutter to a body has a cutter pocket with a first shoulder and a truncated second shoulder. A receptacle extends into the first shoulder. A first retainer retains a first axle end of the rotary cutter and engages the first shoulder to prevent axial movement in a first direction. A projection on the first retainer engages the receptacle to prevent removal of the first retainer radially from the cutter pocket. A second retainer retains a second axle end of the rotary cutter. The second retainer has a step down portion engaging the truncated second shoulder of the cutter pocket to prevent axial movement in a second direction. A locking ring overlies the truncated second shoulder and the step down portion of the second retainer to prevent removal of the second retainer radially from the cutter pocket.
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申请公布号 |
US2006278432(A1) |
申请公布日期 |
2006.12.14 |
申请号 |
US20050230362 |
申请日期 |
2005.09.20 |
申请人 |
WENZEL WILLIAM R;WENZEL ROBERT |
发明人 |
WENZEL WILLIAM R.;WENZEL ROBERT |
分类号 |
E21B10/26 |
主分类号 |
E21B10/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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