Slip spring with heel notch
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United States of America Patent
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Aug 1, 2006
Grant Date -
Oct 23, 2003
app pub date -
Apr 18, 2003
filing date -
Apr 18, 2002
priority date (Note) -
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Abstract
In order to prevent premature separation of the slip and slip spring and to simplify production of the slip casing, a self-centering spring engageable with a packer tool slip is modified according to the present invention. A groove located at a lower center of the slip below the pocket of the slip cooperates with the spring to retain the spring against the slip and is centered within the pocket without requiring partitions or further welding of lugs to retain the springs.
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