(19)
(11) EP 0 355 124 A1

(12)

(43) Date of publication:
28.02.1990 Bulletin 1990/09

(21) Application number: 88905282.0

(22) Date of filing: 18.05.1988
(51) International Patent Classification (IPC): 
H01J( . )
H01J 9/ 00( . )
H01J 29/ 07( . )
 H01J 9/ 14( . )
H01J 9/ 227( . )
(86) International application number:
PCT/US1988/001678
(87) International publication number:
WO 1988/009561 (01.12.1988 Gazette 1988/26)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 18.05.1987 US 19870051896
31.12.1987 US 19870139892
31.12.1987 US 19870139997
31.12.1987 US 19870140019

(71) Applicant: ZENITH ELECTRONICS CORPORATION
Glenview Illinois 60025-2493 (US)

(72) Inventors:
  • STRAUSS, Paul
    Chicago, IL 60657 (US)
  • JAROSZ, John
    Skokie, IL 60077 (US)
  • FENDLEY, James
    Arlington Heights, IL 60005 (US)
  • DOUGHERTY, Lawrence, W.
    Sleepy Hollow, IL 60118 (US)
  • KRANER, James, L.
    Barrington, IL 60010 (US)

(74) Representative: Baillie, Iain Cameron, et al 
c/o Ladas & Parry Altheimer Eck 2
D-80331 München
D-80331 München (DE)

   


(54) PROCESS AND APPARATUS FOR THE MANUFACTURE OF CATHODE RAY TUBES HAVING TENSION MASKS