The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 1977
Filed:
Feb. 10, 1975
Gilbert Eschard, Paris, FR;
Valere Dominique Duchenois, Paris, FR;
Remy Henri Polaert, Villecresnes, FR;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention relates to secondary-emissive microchannels which are bent to a given extent on the output side of the electrons. The said bending serves to restrict the areas where the electrons contact the channel walls to a small zone at the end of the electron multiplication and before the departure of the secondary electrons. The energy of the output electrons is thus dispersed very little. The emission of electrons can then be controlled by means of low electrical voltages which can be readily switched. The said partially curved microchannels are incorporated in electron tubes in the advantage of the ease of control, is utilized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile