IT1206440B - Diaphragm pump with reed valve - has contoured surface for hydraulic fluid chamber contacted by circular reed valve separating diaphragm and stop washer - Google Patents
Diaphragm pump with reed valve - has contoured surface for hydraulic fluid chamber contacted by circular reed valve separating diaphragm and stop washerInfo
- Publication number
- IT1206440B IT1206440B IT8337077A IT8337077A IT1206440B IT 1206440 B IT1206440 B IT 1206440B IT 8337077 A IT8337077 A IT 8337077A IT 8337077 A IT8337077 A IT 8337077A IT 1206440 B IT1206440 B IT 1206440B
- Authority
- IT
- Italy
- Prior art keywords
- reed valve
- diaphragm
- stop washer
- contoured surface
- hydraulic fluid
- Prior art date
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The resilient diaphragm membrane is interposed in a chamber to form a first chamber section for containing pumped liquid and a second chamber section for containing hydraulic pumping fluid. The second chamber section has a contoured surface with a narrowed inlet aperture sized to snugly accept a diaphragm stop washer. The diaphragm stop washer and the diaphragm membrane are secured together on a stem and are separated by a circular reed valve member which contacts the contoured chamber surface in sealing relationship whenever the stop washer is seated within the narrowed aperture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8337077A IT1206440B (en) | 1977-04-14 | 1977-04-14 | Diaphragm pump with reed valve - has contoured surface for hydraulic fluid chamber contacted by circular reed valve separating diaphragm and stop washer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8337077A IT1206440B (en) | 1977-04-14 | 1977-04-14 | Diaphragm pump with reed valve - has contoured surface for hydraulic fluid chamber contacted by circular reed valve separating diaphragm and stop washer |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1206440B true IT1206440B (en) | 1989-04-21 |
Family
ID=11320875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8337077A IT1206440B (en) | 1977-04-14 | 1977-04-14 | Diaphragm pump with reed valve - has contoured surface for hydraulic fluid chamber contacted by circular reed valve separating diaphragm and stop washer |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1206440B (en) |
-
1977
- 1977-04-14 IT IT8337077A patent/IT1206440B/en active
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