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Patent Searching and Data


Title:
DIAPHRAGM PUMP
Document Type and Number:
Japanese Patent JP2016041910
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To ensure the operation of a valve while improving sealing performance with respect to a suction port of a pump chamber.SOLUTION: In a diaphragm pump, a diaphragm-side engagement projection part 17d is provided to an opening part 17b of a diaphragm part 17 and a periphery of a suction valving element 17a, a partition plate-side engagement projection part 30c that engages with the diaphragm-side engagement projection part 17d is provided at a lower surface 30a of a partition plate 30, and an inner diameter D1 of the partition plate-side engagement projection part 30c is formed so as to be larger than an inner diameter d1 of the diaphragm-side engagement projection part 17d.SELECTED DRAWING: Figure 2

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Inventors:
FURUKAWA AKIRA
Application Number:
JP2014165395A
Publication Date:
March 31, 2016
Filing Date:
August 15, 2014
Export Citation:
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Assignee:
OKEN LTD
International Classes:
F04B45/04
Domestic Patent References:
JP2004225607A2004-08-12
JPS6415785U1989-01-26
JPS63198488U1988-12-21
JP2004225607A2004-08-12
JPS6415785U1989-01-26
JPS63198488U1988-12-21
Attorney, Agent or Firm:
山川 政樹
山川 茂樹