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US 6,034,472 AGranted
Vacuum tube having a getter apparatus
AssigneeSiemens Aktiengesellschaft
InventorsKlaus Oberndoerfer, Roman Renz, Klaus Gessner
Life of this patent
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Abstract
A vacuum tube including a getter apparatus is provided. The getter apparatus includes a sheet-like support with an applied getter layer which is used to maintain vacuum in the vacuum tube during operation. The support has the shape of a strip, and is positioned in a groove of a shield or a contact pin of the vacuum tube. The support is immobilized using impressions of the groove rim.
Claims4
A vacuum tube including a housing, comprising:
- a first metal part positioned within the housing and having a flat groove, the flat groove including a rim, the rim having at least one impression, and the flat groove having a first width;
- and
- a getter apparatus, arranged inside the housing, the getter apparatus including a strip-shaped sheet-metal part coupled to the first metal part and being coated with a getter material, the strip-shaped sheet-metal part having a second width, the first width corresponding to the second width, the strip-shaped sheet-metal part being positioned in the flat groove and immobilized by the at least one impression.
Dependencies are inferred from the claim text.