(19)
(11) EP 1 082 541 A1

(12)

(43) Date of publication:
14.03.2001 Bulletin 2001/11

(21) Application number: 99937151.1

(22) Date of filing: 03.06.1999
(51) International Patent Classification (IPC)7F03H 1/00
(86) International application number:
PCT/US9912/403
(87) International publication number:
WO 9963/222 (09.12.1999 Gazette 1999/49)
(84) Designated Contracting States:
BE DE FR GB IT

(30) Priority: 05.06.1998 US 88164 P
10.07.1998 US 92269 P
13.11.1998 US 192039
17.02.1999 US 251530

(71) Applicant: Primex Aerospace Company
Redmond,Washington 98052 (US)

(72) Inventors:
  • VOIGHT, Arnold, W.
    Bellevue, WA 98006 (US)
  • KING, David, Q.
    Woodinville, WA 98072 (US)
  • DE GRYS, Kristi, H.
    Bellevue, WA 98004 (US)
  • MYERS, Roger, M.
    Woodinville, WA 98072 (US)

(74) Representative: Spall, Christopher John 
Barker Brettell,138 Hagley Road
Edgbaston,Birmingham B16 9PW
Edgbaston,Birmingham B16 9PW (GB)

   


(54) UNIFORM GAS DISTRIBUTION IN ION ACCELERATORS WITH CLOSED ELECTRON DRIFT