EP 0105783 B1 19861105 - COAXIAL MULTIPLE CHAMBER HYDRAULIC ACTUATOR AND SYSTEM PROVIDED WITH SYNCHRONISED ACTUATORS OF THIS TYPE
Title (en)
COAXIAL MULTIPLE CHAMBER HYDRAULIC ACTUATOR AND SYSTEM PROVIDED WITH SYNCHRONISED ACTUATORS OF THIS TYPE
Publication
Application
Priority
FR 8216263 A 19820928
Abstract (en)
[origin: US4531451A] An hydraulic jack having more than two chambers is disclosed and is intended for use in a system of jacks, the displacement of which is to be synchronized. Each jack has a cylindrical center cavity in which a piston with a cylindrical cross section reciprocates, an annular cavity in which a piston with an annular cross-section reciprocates, and a rod for transmitting thrust connected to both pistons. In order to provide the jack with a minimum longitudinal dimension and with maximum rigidity, the two cavities are concentric and are separated by a stationary intermediate wall. The two pistons are connected to the rod for the transmission of thrust.
IPC 1-7
IPC 8 full level
B66F 3/46 (2006.01); B66F 7/20 (2006.01); F15B 11/036 (2006.01); F15B 11/22 (2006.01)
CPC (source: EP US)
F15B 11/036 (2013.01 - EP US); F15B 11/22 (2013.01 - EP US); F15B 2211/2053 (2013.01 - EP US); F15B 2211/30525 (2013.01 - EP US); F15B 2211/324 (2013.01 - EP US); F15B 2211/50518 (2013.01 - EP US); F15B 2211/50536 (2013.01 - EP US); F15B 2211/5151 (2013.01 - EP US); F15B 2211/5153 (2013.01 - EP US); F15B 2211/524 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/7055 (2013.01 - EP US); F15B 2211/7107 (2013.01 - EP US); F15B 2211/7121 (2013.01 - EP US); F15B 2211/7128 (2013.01 - EP US)
Citation (examination)
FR 2433661 A1 19800314 - ROLLS ROYCE [GB]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0105783 A1 19840418; EP 0105783 B1 19861105; DE 3367439 D1 19861211; FR 2533644 A1 19840330; FR 2533644 B1 19861219; IT 8322757 A0 19830902; JP H0148402 B2 19891019; JP S5977107 A 19840502; US 4531451 A 19850730
DOCDB simple family (application)
EP 83401841 A 19830921; DE 3367439 T 19830921; FR 8216263 A 19820928; IT 2275783 A 19830902; JP 17784483 A 19830926; US 53643383 A 19830927