| 54 |
Title |
TI |
[EN] HYDRAULIC CONTROL |
| 71/73 |
Applicant/owner |
PA |
OTTO BOCK ORTHOPADISCHE INDUSTRIE BESITZ- UND VERWALTUNGS-KOMMANDITGESELLSCHAFT
|
| 72 |
Inventor |
IN |
HORVATH, EDUARD
|
| 22/96 |
Application date |
AD |
Oct 28, 1988 |
| 21 |
Application number |
AN |
88890270 |
|
Country of application |
AC |
EP |
|
Publication date |
PUB |
Feb 14, 1990 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
AT
286487
19871030
|
| 51 |
IPC main class |
ICM |
G05B 11/60
|
| 51 |
IPC secondary class |
ICS |
A61F 2/48
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
A61F 2/68
A61F 2/74
A61F 2/748
F16F 9/44
G05B 11/60
|
|
MCD main class |
MCM |
A61F 2/74
(2006.01)
|
|
MCD secondary class |
MCS |
A61F 2/68
(2006.01)
B25J 17/00
(2006.01)
F16F 9/44
(2006.01)
G05B 11/60
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] A control circuit for the action of a hydraulic regulator formed by a piston/cylinder unit, in particular for the regulation of the movement of artificial human joints, in which regulator the cylinder spaces located on either side of the piston are connected by a passage having a regulating member for the through-flow from the piston side having the piston rod to the opposite piston side, both cylinder spaces additionally being in connection with a compensation space for balancing the cylinder-space capacities varying on account of the piston rod, a non-return valve which prevents through-flow in the direction of the compensation space being provided in the connecting line between the cylinder space free of the piston rod and the compensation space, and a first adjustable restrictor member being provided in the flow path from the cylinder space free of the piston rod to the compensation space. To permit independent regulation of both directions of movement of the piston or regulation of the extraction movement of the piston out of the cylinder, the first adjustable restrictor member 14 is arranged in a bypass line 13 avoiding the non-return valve 12, a further adjustable restrictor member 10 being arranged in the flow path from the cylinder space 5 having the piston rod 3 to the compensation space 9, in which arrangement the cylinder space 5 having the piston rod 3 can be filled via a line 6, 22 having a further non-return valve 7, 23, 24.
<IMAGE>
|
| 56 |
Cited documents identified in the search |
CT |
DE000008708011U1
EP000000237085A1
GB000002194309A
US000002859451A
WO001984001605A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
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|
Search file IPC |
ICP |
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