US 11,749,486 B1
Systems, methods and apparatus for fabricating and utilizing a cathode
Brad Winston Hoff, Albuquerque, NM (US); Wilkin Wai-Hang Tang, Albuquerque, NM (US); Sterling Ryan Beeson, Tijeras, NM (US); and Ali Sayir, Bay Village, OH (US)
Assigned to Government of the United States as represented by the Secretary of the Air Force
Filed by The Government of the United States of America as represented by the Secretary of the Air Force, Kirtland AFB, NM (US)
Filed on Jun. 1, 2022, as Appl. No. 17/830,238.
Application 17/830,238 is a division of application No. 16/591,030, filed on Oct. 2, 2019, granted, now 11,373,833.
Claims priority of provisional application 62/741,892, filed on Oct. 5, 2018.
Int. Cl. H01J 1/62 (2006.01); H01J 9/00 (2006.01); H01J 9/02 (2006.01); H01J 1/304 (2006.01)
CPC H01J 9/025 (2013.01) [H01J 1/304 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A field emission device, comprising:
a metal cathode substrate; and
a patterned carbon fiber fabric, at least a first portion of the patterned carbon fiber fabric is brazed to the metal cathode substrate.