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1. WO2020198620 - SELF-LOCKING JACK

Publication Number WO/2020/198620
Publication Date 01.10.2020
International Application No. PCT/US2020/025320
International Filing Date 27.03.2020
IPC
B66F 1/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
FHOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
1Devices, e.g. jacks, for lifting loads in predetermined steps
02with locking elements, e.g. washers, co-operating with posts
CPC
B66F 1/025
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
1Devices, e.g. jacks, for lifting loads in predetermined steps
02with locking elements, e.g. washers, co-operating with posts
025the devices being operated by fluid pressure
Applicants
  • ENERPAC HEAVY LIFTING TECHNOLOGY B.V. [NL]/[NL]
Inventors
  • SCHIPHORST, Frank
  • GEERDINK, Bas
  • STUBBS, Jeremy
Agents
  • MARSTALL, Brian J.
  • LAWSON, Edward, R.
Priority Data
62/825,56428.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELF-LOCKING JACK
(FR) VÉRIN AUTOBLOQUANT
Abstract
(EN)
A jack includes a main body (14) with a cavity (18). A lifting cylinder (42) is supported on the main body and is extendable into the cavity. A lock (30, 34) is movably coupled to the main body. A spring (38) is coupled to the lock and biases the lock into the cavity. A cylinder (86) is coupled to the lock and biases the lock out of the cavity against the biasing force of the spring.
(FR)
Un vérin comprend un corps principal (14) ayant une cavité (18). Un cylindre de levage (42) est supporté sur le corps principal et peut s'étendre dans la cavité. Un verrou (30, 34) est accouplé de façon mobile au corps principal. Un ressort (38) est accouplé au verrou et sollicite le verrou dans la cavité. Un cylindre (42) est accouplé au verrou et sollicite le verrou hors de la cavité contre la force de sollicitation du ressort.
Latest bibliographic data on file with the International Bureau