B - Operations – Transporting – 64 – D
Patent
B - Operations, Transporting
64
D
294/43, 267/90
B64D 17/38 (2006.01) B65G 7/12 (2006.01)
Patent
CA 1202998
ABSTRACT OF THE DISCLOSURE An improved shock absorbing snubber for derrick hooks is shown which includes a stationary hydraulic plunger and a telescoping barrel arrangment. A spring loaded check valve mounted on the plunger allows generally free fluid flow as the barrel is moved in one direction relative to the plunger but restricts the flow of fluid as the barrel is moved in the opposite direction.
374847
Bj-Hughes Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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