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公开(公告)号:US3864797A
公开(公告)日:1975-02-11
申请号:US35238173
申请日:1973-04-18
Applicant: NASA
Inventor: BANKS BRUCE A
CPC classification number: F03H1/0043 , H01J19/00 , H01J2893/0022
Abstract: A 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.
Abstract translation: 一对平的格栅坯料在其边缘被夹在一起,顶部有不透水的金属片。 通过迫使流体使接触底部网格坯料的弹性片体膨胀,所有坯料和片材同时进行凹陷。 如果栅格具有高百分比的开放面积,则在两个格栅坯之间插入第二不透水金属片。 碟形网格同时应力消除。
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公开(公告)号:US3573977A
公开(公告)日:1971-04-06
申请号:US3573977D
申请日:1968-09-19
Applicant: NASA
Inventor: BANKS BRUCE A
CPC classification number: F03H1/0043 , C23D5/00 , H01J19/00 , H01J2893/0024 , Y10T428/24331
Abstract: MINIMIZING BUBBLES IN A FUSED GLASS COATING ON A PERFORATED PLATE FORMING THE SINGLE GRID OF AN ION THRUSTOR ACCELERATOR SYSTEM. A SLURRY COATED GRID IS FIRST HEATED IN A HELIUM ATMOSPHERE WHICH IS SUBSEQUENTLY CHANGED TO ARGON SO THAT ENTRAPPED HELIUM DIFFUSES OUT OF THE GLASS.
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公开(公告)号:US3620018A
公开(公告)日:1971-11-16
申请号:US3620018D
申请日:1970-08-28
Applicant: NASA
Inventor: BANKS BRUCE A
CPC classification number: H01J27/14 , F03H1/0056
Abstract: THE MAGNETIC FIELD OF AN ION THRUSTER IS AUTOMATICALLY SHUNTED WHEN THE THRUSTER IS NOT OPERATING.
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公开(公告)号:US3552124A
公开(公告)日:1971-01-05
申请号:US3552124D
申请日:1968-09-09
Applicant: NASA
Inventor: BANKS BRUCE A , NAKANISHI SHIGEO
CPC classification number: F03H1/0043
Abstract: A SINGLE COATED GRID ACCELERATOR SYSTEM FOR AN ION THRUSTOR. THE GRID IS COATED WITH AN INSULATING MATERIAL THAT IS BONDED TO ITS SURFACE.
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公开(公告)号:US3914969A
公开(公告)日:1975-10-28
申请号:US46290374
申请日:1974-04-22
Applicant: NASA
Inventor: BANKS BRUCE A
IPC: B21D26/025 , B21D26/059 , F03H1/00 , H01J19/00 , B21D22/12 , B21D26/04
CPC classification number: F03H1/0043 , B21D26/025 , B21D26/059 , H01J19/00 , H01J2893/0022
Abstract: An impervious metal sheet is placed on top of a pair of flat grid blanks which are clamped together at their edges. An elastic sheet contacts the bottom grid blank, and a second impervious metal sheet is inserted between the two grid blanks if the grids have high percentage open areas. All of the blanks and sheets are dished simultaneously by forcing fluid to inflate the elastic sheet. The dished grids are also stress relieved simultaneously.
Abstract translation: 不透水的金属片被放置在一对平的栅格坯料的顶部,它们在它们的边缘被夹在一起。 如果网格具有高百分比的开放面积,则弹性片接触底部网格坯料,并且第二不透水金属片插入在两个格栅坯之间。
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公开(公告)号:US3552125A
公开(公告)日:1971-01-05
申请号:US3552125D
申请日:1969-06-06
Applicant: NASA
Inventor: BANKS BRUCE A , KAUFMAN HAROLD R
CPC classification number: F03H1/0043 , B64G1/405
Abstract: ELECTRICALLY ORIENTING THE THRUST VECTOR OF AN ELECTROSTATIC ION THRUSTOR HAVING A GLASS-COATED GRID SYSTEM. HIGHLY NEGATIVE POTENTIALS ARE APPLIED TO CONDUCTORS THAT ARE MOUNTED IN PAIRS AND ARRANGED IN ARRAYS TO FORM THE GRID. THESE ELECTRICAL POTENTIALS ARE INDEPENDENTLY VARIED IN EACH ARRAY TO OBTAIN THE DESIRED AMOUNT OF ION BEAM VECTORING.
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