F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
254/148
F15B 13/00 (2006.01) A47C 3/30 (2006.01) B66F 3/42 (2006.01) F15B 15/16 (2006.01) F15B 15/18 (2006.01)
Patent
CA 1038852
ABSTRACT OF THE DISCLOSURE: A jack-pump device comprising a pump having a sliding piston defining on each of its sides a first and a second chambers respectively, a jack having a sliding piston defining on each of its sides a first and a second chambers respectively, a first valve means between the pump chambers, this first valve means being unidirectional in the direction going from the second to the first pump chamber, a second valve means between the first chambers of the pump and the jack, and communication means between the two second chambers of the pump and the jack, the two pistons being axially in line and mounted slidably in the same cylinder body filled with the fluid. A fixed transverse partition is arranged in the cylinder body between the two pistons, this device further comprising a plunger for compensating variations of volume. The plunger is mounted slidably in one of the two second chambers in the vicinity of the corresponding extremity of the cylinder body.
246558
Boutroy Marcel
Neyret Jacques
LandOfFree
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