Bibliografische Daten

Dokument US000004854428A (Seiten: 5)

Bibliografische Daten Dokument US000004854428A (Seiten: 5)
INID Kriterium Feld Inhalt
54 Titel TI [EN] Double-acting hydraulic piston-and-cylinder device
71/73 Anmelder/Inhaber PA BOCK ORTHOPAED IND, DE
72 Erfinder IN HORVATH EDUARD, AT
22/96 Anmeldedatum AD 22.09.1988
21 Anmeldenummer AN 24789688
Anmeldeland AC US
Veröffentlichungsdatum PUB 08.08.1989
33
31
32
Priorität PRC
PRN
PRD
AT
239987
19870922
51 IPC-Hauptklasse ICM F16F 9/10
51 IPC-Nebenklasse ICS F16F 9/36
F16J 3/04
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.
56 Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt
CT US000002452885A
US000002605474A
US000002651327A
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56 Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt
CT
56 Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt
CTNP
56 Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt
CTNP
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Sequenzprotokoll
Prüfstoff-IPC ICP F16F 9/10