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Method of making dished ion thruster gridsA pair of flat grid blanks are clamped together at their edges with an impervious metal sheet on top. All of the blanks and sheets are dished simultaneously by forcing fluid to inflate an elastic sheet which contacts the bottom grid blank. A second impervious metal sheet is inserted between the two grid blanks if the grids have high percentage open areas. The dished grids are stress relieved simultaneously.
Document ID
19750010238
Document Type
Other - Patent
Authors
Banks, B. A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
February 11, 1975
Subject Category
SPACECRAFT PROPULSION AND POWER
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LEW-11694-1|US-PATENT-3,864,797
Patent Application
US-PATENT-APPL-SN-352381

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IDRelationTitleN73-22721Superseded By