Title:
CHECK VALVE OF DISCHARGE PORT FOR LIQUID-FILLED VACCUM PUMP
Document Type and Number:
Japanese Patent JPS52129008
Kind Code:
A
Abstract:
PURPOSE: To pordue a easily detachable and maintainable check valve, by forming a unitary check valve unit combining a valve holder with an inspection cover.
Inventors:
NISHIZAWA SADAHIKO
Application Number:
JP4636476A
Publication Date:
October 29, 1977
Filing Date:
April 22, 1976
Export Citation:
Assignee:
KUBOTA LTD
International Classes:
F04C29/12; F16K15/04; F04C19/00; (IPC1-7): F04C19/00; F04C25/02