Valves and valve actuation – Electrically actuated valve – Including solenoid
Reexamination Certificate
2005-05-03
2005-05-03
Hirsch, Paul J. (Department: 3753)
Valves and valve actuation
Electrically actuated valve
Including solenoid
C251S065000
Reexamination Certificate
active
06886801
ABSTRACT:
A valve assembly has a valve opening which can be sealed and un-sealed by movement of a membrane6, a force generator, such as an electromagnetic force generator having a solenoid and armature arrangement, and a shaft that is operably connected to the membrane and which is movable along a movement axis under the influence of the generated force to move the membrane and thereby regulate the degree of opening of the valve. Bearing assemblies are provided to procure a magnetic suspension of the shaft, permit its movement along the axis, and also to optionally produce a magnetic biasing of the shaft in a direction along the axis, particularly in the absence of a generated force.
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Patent Abstracts of Japan Publication N, 200229455 For Japanese Application No. 2001095715.
Patent Abstracts of Japan Publication N, 2001324436 for Japanese Application No. 2000140178.
Hallbäck Mangus
Jalde Fredrik
Larsson Åke
Hirsch Paul J.
Maquet Critical Care AB
Schiff & Hardin LLP
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