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US 11,454,229 B1Granted
Dewar vacuum maintenance systems for intermittently powered sensors
AssigneeWavefront Research, Inc.
InventorsJonas D. Corl, Randall C. Veitch
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Abstract
Systems and methods that maintain a vacuum for a long period of time in a portable vacuum chamber are disclosed. Systems and methods for the maintenance of a vacuum in cryogenic Dewars for imaging systems with high gas loads using an integral pump and getter are also disclosed.
Claims4
A vacuum maintenance device comprising:
- a first electrical power supply;
- said first electrical power supply capable of supplying an ion pump with electrical power for operation;
- a second electrical power supply;
- said second electrical power supply capable of supplying electrical power for thermally regenerate the getter in a getter pump;
- thermal regeneration producing released gasses;
- control circuitry;
- said control circuitry capable of controlling said second electrical power supply producing a controlled rate of said released gasses;
- said controlled rate of said released gasses enabling the ion pump to remove at least a portion of said released gasses without the need to connect to an auxiliary vacuum pump during thermally regenerating the getter.
5 more elements
Dependencies are inferred from the claim text.