Manhole lift insert with frangible positioner
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United States of America Patent
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N/A
Issued Date -
Jan 6, 2005
app pub date -
Jun 21, 2004
filing date -
Jun 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A manhole lift insert with a socket portion and a frangible portion that is inserted in a pre-positioned bushing in the outer wall of a manhole form. A key in the sleeve portion may be received in a keyway in the bushing in the form wall so that the insert is properly oriented in the form.
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