Invention Grant
US07669649B2 Stripper rubber with integral retracting retention member connection apparatus
有权
具有整体缩回保持构件连接装置的剥离橡胶
- Patent Title: Stripper rubber with integral retracting retention member connection apparatus
- Patent Title (中): 具有整体缩回保持构件连接装置的剥离橡胶
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Application No.: US11975201Application Date: 2007-10-18
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Publication No.: US07669649B2Publication Date: 2010-03-02
- Inventor: John R. Williams
- Applicant: John R. Williams , Theresa J. Williams, legal representative
- Agent David O. Simmons
- Main IPC: E21B19/00
- IPC: E21B19/00
Abstract:
A stripper rubber insert comprises a central bore and a plurality of retention member bores substantially perpendicular to the central bore. The retention member bores are angularly spaced apart around a perimeter of the stripper rubber insert. Each one of the retention member bores extends through an exterior insert edge face and an interior insert edge face. Each one of the retention member bores includes a respective retention member securing structure therein.
Public/Granted literature
- US20090101333A1 Stripper rubber with integral retracting retention member connection apparatus Public/Granted day:2009-04-23
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