Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB19661/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Space Systems Loral LLC
Original Assignee
Philco Ford Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philco Ford CorpfiledCriticalPhilco Ford Corp
Publication of GB652096ApublicationCriticalpatent/GB652096A/en
H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
H01J29/18—Luminescent screens
Landscapes
Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like
(AREA)
Abstract
652,096. Infra-red electric resistance heaters. PHILCO CORPORATION. July 22, 1947, No. 19661. Convention date, March 8, 1946. [Class 39(iii)] [Also in Group XL(a)] A heater for removing discoloration in the screen of a cathode ray tube (see Group XL(a)), comprises a polished metal tube 11 with a spiral heated coil 12 and a reflector 13 designed to reflect the infra-red.
GB19661/47A1946-03-081947-07-22Method and apparatus for removing burns from cathode ray tubes
ExpiredGB652096A
(en)
Improvements in or relating to methods of sealing together thick-walled hollow glass parts, more especially the edges of a glass window and cone of a cathode-ray tube