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Machine translation
1. (WO1981000460) HIGH FREQUENCY REACTION MASS AND HYDRAULIC CYLINDER ASSEMBLY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000460    International Application No.:    PCT/US1979/000591
Publication Date: 19.02.1981 International Filing Date: 08.08.1979
IPC:
B06B 1/18 (2006.01), G01V 1/155 (2006.01)
Applicants:
Inventors:
Priority Data:
US79/00591 08.08.1979 WO
Title (EN) HIGH FREQUENCY REACTION MASS AND HYDRAULIC CYLINDER ASSEMBLY
(FR) ASSEMBLAGE D"UNE MASSE DE REACTION A HAUTE FREQUENCE ET D"UN CYLINDRE HYDRAULIQUE
Abstract: front page image
(EN)A reaction mass and hydraulic cylinder assembly for a seismic transducer. A hydraulic biasing cylinder (76) is formed between a lower piston rod (32) and a reaction mass (44) and is located below a hydraulic drive cylinder (46) The lower piston rod (32) includes a first portion (36) and a detachable second portion (38-40), the detachable second portion forming an upward facing shoulder (42) which partially defines the hydraulic biasing cylinder (76). The hydraulic drive cylinder (46) is formed by a cylinder sleeve (48) and upper and lower cylinder bushings (50 and 52) having lower and upper ends (54 and 56), respectively, concentrically received within the cylinder sleeve (48) to define the upper and lower ends, respectively, of the hydraulic drive cylinder.
(FR)Assemblage de masse de reaction et d"un cylindre hydraulique pour un transducteur sismique. Un cylindre de poussee hydraulique (76) est forme entre une bielle de piston inferieure (32) et une masse de reaction (44) et est situe sous un cylindre d"entrainement hydraulique (46). La bielle de piston inferieure (32) comprend une premiere partie (36) et une seconde partie detachable (38-40), la seconde partie detachable formant un epaulement regardant vers le haut (42) qui definit partiellement le cylindre de poussee hydraulique (76). Le cylindre d"entrainement hydraulique (46) est forme par un manchon cylindrique (48) et des manchonnages cylindriques superieur et inferieur (50 et 52) ayant des extremites inferieure et superieure (54 et 56) respectivement, recues concentriquement dans le manchon cylindrique (48) pour definir les extremites superieure et inferieure, respectivement, du cylindre d"entrainement hydraulique.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)