Invention Grant
- Patent Title: Rotary blasthole drilling rig flexible jaw pipe positioner
- Patent Title (中): 旋转钻孔钻机柔性颚管定位器
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Application No.: US12429587Application Date: 2009-04-24
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Publication No.: US08151903B2Publication Date: 2012-04-10
- Inventor: Bruce Crawford , Steven M. Precopia
- Applicant: Bruce Crawford , Steven M. Precopia
- Applicant Address: US WI South Milwaukee
- Assignee: Caterpillar Global Mining LLC
- Current Assignee: Caterpillar Global Mining LLC
- Current Assignee Address: US WI South Milwaukee
- Agency: Foley & Lardner LLP
- Main IPC: E21B19/00
- IPC: E21B19/00
Abstract:
A pipe positioner having an arm including a lower jaw and an upper jaw mounted thereon is provided. The pipe positioner includes at least one of the lower jaw and the upper jaw with at least one shear pin disposed in location to provide protection of the pipe positioner from mechanical overload. A method for retrofit of a pipe positioner and a blasthole drilling rig are disclosed.
Public/Granted literature
- US20100270082A1 ROTARY BLASTHOLE DRILLING RIG FLEXIBLE JAW PIPE POSITIONER Public/Granted day:2010-10-28
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