Title:
VACUUM VALVE FITTING DEVICE FOR HERMETIC VESSEL
Document Type and Number:
Japanese Patent JPS5428012
Kind Code:
A
Abstract:
PURPOSE:To fit a check valve to a hermetic vessel after exhausting the vessel not through the check valve, by putting the check valve in a tip screw tube, connecting the screw tube with the vessel and ditting the check valve, after extraction through a bleeder tube, by means of a manipulating rod.
Inventors:
INOUE MASAAKI
Application Number:
JP9390277A
Publication Date:
March 02, 1979
Filing Date:
August 04, 1977
Export Citation:
Assignee:
TAKUMA KK
International Classes:
F16J13/00; F16K15/18; F17C13/04; (IPC1-7): F16K15/18; F17C13/04