Hydraulic lift and walking system for catwalk machine
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United States of America Patent
Stats
-
Apr 23, 2024
Grant Date -
Jul 27, 2023
app pub date -
Apr 5, 2023
filing date -
Mar 23, 2017
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A locking device includes an outer portion and an inner portion. The outer portion has a bore formed at least partially axially therethrough and a channel formed laterally therethrough. The inner portion is positioned at least partially within the bore. A first link is positioned at least partially outside of the outer portion and coupled to the inner portion through the channel. A second link is coupled to the outer portion. A pin is coupled to the first link and the second link. The locking device is in an unlocked state when the inner portion is fully positioned within the bore, and the locking device is in a locked state when an end of the inner portion extends axially out of the bore.
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