ELECTRON GUN FOR EVAPORATING OR SUBLIMATING MATERIAL IN A VACUUM ENVIRONMENT

219^121 SR HTR04 XR 3,379»819

April 23, 1968 A. L. Houde 3,379,819

ELECTRON GUN FOR EVAPORATING OB SUBLIMATING
MATERIAL IN A VACUUM ENVIRONMENT
Filed Sept. 15, 1965 4 Sheets-Sheet l

April 23.1968 A. L. Houde 3,379,819

ELECTRON GUN FOR EVAPORATING OR SUBLIMATING MATERIAL IN A VACUUM ENVIRONMENT Filed Sept. 15, 1966 4 Sheets-Sheet 2 April 23, 1968 A. L. Houde 3,379,819

ELECTRON GUN FOB EVAPORATING OR SUBLIMATING MATERIAL IN A VACUUM ENVIRONMENT Filed Sept. 15, 1966 4 Sheets-Sheet 3 April 23, 1968 A. L. Houde 3,379,819

ELECTRON GUN FOR EVAPORATING OR SUBLIMATING MATERIAL IN A VACUUM.ENVIRONMENT Filed Sept. 15, 1966 4 Sheets-Sheet 4