Portable winch
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United States of America Patent
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Sep 13, 2022
Grant Date -
Mar 18, 2021
app pub date -
Nov 30, 2020
filing date -
May 18, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A portable winch and method of use is shown. One advantage of winches shown includes an ability to lower a boom or boom sections into limited access exit pit for winching operations such as pipe bursting. Sectional boom designs shown provide the ability to easily raise and lower a boom large distances without the need for a single long boom. Selected winch designs shown include flexible inserts between the boom and the winch frame that help resist damage from unforeseen shifting of the device during operation. Designs and methods shown also include multiple pulleys on a boom end unit. Fasteners are shown that reduce build up of debris.
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