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Patent Searching and Data


Title:
CHECK VALVE OF DISCHARGE PORT FOR LIQUID-FILIED TYPE VACUUM PUMP
Document Type and Number:
Japanese Patent JPS52129007
Kind Code:
A
Abstract:

PURPOSE: To make a check valve at a discharge port of a liquid-filled type vacuum pump easily detachable for maintenance, by using a unitary valve holder inserted and fixed with fitting bolts.


Inventors:
NISHIZAWA SADAHIKO
Application Number:
JP4636376A
Publication Date:
October 29, 1977
Filing Date:
April 22, 1976
Export Citation:
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Assignee:
KUBOTA LTD
International Classes:
F04C29/12; F16K15/04; F04C19/00; (IPC1-7): F04C19/00; F04C25/02
Domestic Patent References:
JPS287758Y1
Foreign References:
US3366314A1968-01-30