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US 11,598,386 B2Granted
Spring mechanism and hydraulic actuator
AssigneeOtto Bock Healthcare Products GmbH
InventorStefan Hartl
Life of this patent
Estimating the term…
Abstract
A spring mechanism having at least two wave washers and at least one spring washer between the wave washers. The wave washers are mounted so as to be twistable relative to one another.
Claims20
A spring device comprising:
- at least two wave washers;
- at least one spring washer disposed between the wave washers;
- wherein the wave washers are mounted so as to be capable of being rotated relative to one another, and wherein the at least one spring washer is flat in a non-loaded state and situated between two rigid wave washers.
A spring device comprising:
- a plurality of wave washers;
- at least one spring washer disposed between the wave washers;
- wherein the wave washers are rotatably mounted relative to one another, and wherein the spring washer is flat in a non-loaded state and situated between two rigid wave washers of the plurality of wave washers.
Dependencies are inferred from the claim text.