Flange lifter device
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United States of America Patent
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-
May 7, 2013
Grant Date -
Nov 8, 2012
app pub date -
Oct 28, 2011
filing date -
May 2, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pipe flange lifting device for supporting and leveling two holes of a blind flange during installation onto a pipe end. The device comprises two L-shaped claws connecting to a common pin, forming an overall triangular-shaped device having a crane hoist fitting. The claws are positioned on opposing sides of a pipe flange and rotate freely with respect to the pin prior to installation, whereafter the claws are fitted beneath lifting bolts fitted through a flange for stable support during operation. The lifting bolts comprise a pair of bolts inserted into eyes of the flange prior to the lifting operation. Spacers along the pin allow the claws to be separated by a desired distance and prevent pinch points due to claw inclination. The design of the claws provides stable support for two lift bolts of a pipe flange and assists in the installation process.
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