Casing head connector
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United States of America Patent
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Jul 23, 2013
Grant Date -
Feb 24, 2011
app pub date -
Aug 24, 2010
filing date -
Aug 24, 2009
priority date (Note) -
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Abstract
A wellhead connection to casing is formed from an upper head housing, a slip bowl housing and slip segments. First compression spring extending vertically between slip segment and the a slip bowl housing, and second compression springs extending generally horizontally between adjacent slip segments maintain the slip segments out of gripping engagement with the casing until the slip bowl housing and the upper head housing are fully connected together. On disconnecting the housings, the first compression springs push the slip segments apart from the slip bowl housing, and the second compression springs push the slip segments radially apart from the casing.
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