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
GB26331/27A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of GB286999ApublicationCriticalpatent/GB286999A/en
H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
H01J19/02—Electron-emitting electrodes; Cathodes
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2893/00—Discharge tubes and lamps
H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
Landscapes
X-Ray Techniques
(AREA)
Discharge Lamps And Accessories Thereof
(AREA)
Abstract
286,999. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. July 26, 1927, [Convention date]. Addition to 282,712. Vacuum tubes.-In a valve having a filament a, a grid b, and one or more anodes c of small dimensions and one or more shields according to the parent Specification, the shield d is provided with a slot to receive the support h and lead for the anode. The support h is connencted through glass beads k with supports l mounted on the supports m for the shield. The supports m are connected by a wire e with the centre of the filament.
GB26331/27A1927-07-261927-10-05Improvements relating to thermionic valves or electron discharge tubes
ExpiredGB286999A
(en)