Bibliografische Daten

Dokument CA000001309732C (Seiten: 0 )

Bibliografische Daten Dokument CA000001309732C (Seiten: 0 )
INID Kriterium Feld Inhalt
54 Titel TI [EN] DOUBLE-ACTING HYDRAULIC PISTON-AND-CYLINDER DEVICE
[FR] DISPOSITIF HYDRAULIQUE COMPOSE D'UN PISTON ET D'UN CYLINDRE A DOUBLE ACTION
71/73 Anmelder/Inhaber PA HORVATH EDUARD, AT
72 Erfinder IN HORVATH EDUARD, AT
22/96 Anmeldedatum AD 21.09.1988
21 Anmeldenummer AN 578047
Anmeldeland AC CA
Veröffentlichungsdatum PUB 03.11.1992
33
31
32
Priorität PRC
PRN
PRD
AT
239987
19870922
51 IPC-Hauptklasse ICM A61F 2/50
51 IPC-Nebenklasse ICS
IPC-Zusatzklasse ICA
IPC-Indexklasse ICI
Gemeinsame Patentklassifikation CPC A61F 2/68
A61F 2/74
MCD-Hauptklasse MCM F01B 19/04 (2006.01)
MCD-Nebenklasse MCS A61F 2/68 (2006.01)
A61F 2/74 (2006.01)
F01B 23/00 (2006.01)
MCD-Zusatzklasse MCA
57 Zusammenfassung AB [EN] A double-acting hydraulic piston-and-cylinder unit adapted to constitute a damper for movements in a human joint prosthesis has a boot sealingly connected to the cylinder and the piston rod to receive the hydraulic fluid under pressure as the hydraulic fluid is displaced from one or the other of two cylinder chambers upon displacement of the piston rod. The boot has a conically widening region or segment sealingly secured to the rod and adjoining the cylindrical segment of the boot surrounding the cylinder in a transition segment formed as an outwardly convex bulge and designed to ensure that initial inward movement of the piston rod will give rise to a plate membrane deformation of the elastic boot while only further displacement will result in a rolling action of the membrane. This ensures a generally cylindrical uniform configuration of the boot in all positions of the rod as is essential for effective use in a prosthesis.
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56 Entgegengehaltene Nichtpatentliteratur/Zitate,
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