Patent ID: 11946138
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H  F | IPC C  F  H

Claim 9:
10. A vacuum valve, comprising:
a valve flange having a first port, a second port, and a valve seat on a flow path between the first and second ports;
a valve body in the valve flange, the valve body having a contact surface configured to block the flow path when contacting the valve seat, and configured to allow the contact surface to be separated from the valve seat;
a disk on the contact surface of the valve body, the disk having a first surface in contact with the contact surface and a second surface opposite the first surface, the second surface being a non-flat surface configured to be in the first port when the contact surface is in contact with the valve seat;
an actuator having an output shaft connected to the valve body, the actuator being configured to apply a driving force to the valve body through the output shaft; and
a bellows surrounding the output shaft, the bellows being configured to expand and contract according to the driving force.