GB1395403A - Diaphragm pump having a safety arrangement - Google Patents
Diaphragm pump having a safety arrangementInfo
- Publication number
- GB1395403A GB1395403A GB3360272A GB3360272A GB1395403A GB 1395403 A GB1395403 A GB 1395403A GB 3360272 A GB3360272 A GB 3360272A GB 3360272 A GB3360272 A GB 3360272A GB 1395403 A GB1395403 A GB 1395403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- chamber
- working
- safety
- fails
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
- F04B43/009—Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
Abstract
1395403 Diaphragm pumps; compressors; vacuum pumps E BECKER 18 July 1972 [15 Sept 1971] 33602/72 Headings F1A and FIN A diaphragm pump for gases or liquids comprises a working diaphragm 5 and a safety diaphragm 6 spaced apart to define a chamber 20 in which leakage collects to operate indicating means when the working diaphragm fails, the safety diaphragm 6 being more resilient than the working diaphragm, being reinforced or maintained at less severe temperatures or subjected to less severe flexing than the working diaphragm, to ensure that the working diaphragm fails before the safety diaphragm. As shown, chamber 20 communicates with an analyzer for detecting leakage and with a compensating chamber 51 with a diaphragm 52, which is connected to atmosphere or a controlled pressure through connection 53 and functions to absorb pressure variations in chamber 20 during normal operation. Contacts 56, 57 are closed on complete deflection of diaphragm 52 due to failure of diaphragm 5 (when acting as a vacuum pump). Chambers 20 and 51 may be filled with the fluid to be pumped to avoid contamination when diaphragm 5 fails. Diaphragm 5 may act to close the inlet port during the discharge stroke, Fig. 5 (not shown). In Fig. 2 (not shown), a pressure gauge is connected to chamber 20. In Fig. 3 (not shown), the safety diaphragm is cooled by a fluid circulating through a cooling coil (22).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712146016 DE2146016A1 (en) | 1971-09-15 | 1971-09-15 | DEVICE FOR SECURING AND GGFS. IMPROVING A DIAPHRAGM PUMP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1395403A true GB1395403A (en) | 1975-05-29 |
Family
ID=5819567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3360272A Expired GB1395403A (en) | 1971-09-15 | 1972-07-18 | Diaphragm pump having a safety arrangement |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2146016A1 (en) |
| GB (1) | GB1395403A (en) |
| IT (1) | IT964169B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2388163A (en) * | 2001-05-09 | 2003-11-05 | David R Marshall | Cooling a flexible pump seal |
| EP1418366A1 (en) * | 2002-11-06 | 2004-05-12 | John Bowen | Fluid cooled diaphragm |
| EP3480460A1 (en) * | 2017-11-02 | 2019-05-08 | AVS Added Value Industrial Engineering Solutions, S.L. | Volumetric pump |
| CN111502977A (en) * | 2020-05-14 | 2020-08-07 | 重庆水泵厂有限责任公司 | Cooling isolator and isolation pump |
| US11686301B2 (en) | 2019-04-02 | 2023-06-27 | Northern Tool & Equipment Company, Inc. | Pump system with leak damage protection |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3931516C2 (en) * | 1989-09-21 | 1993-10-14 | Ott Kg Lewa | Diaphragm pump with a mechanically driven diaphragm |
| DE4328559C5 (en) * | 1993-08-25 | 2004-11-25 | Knf-Neuberger Gmbh | Diaphragm pump with at least two membranes |
| DE202008011817U1 (en) * | 2008-09-05 | 2010-02-11 | Vacuubrand Gmbh + Co Kg | Oscillating positive displacement vacuum pump |
| DE102008053050A1 (en) | 2008-10-24 | 2010-04-29 | Prominent Dosiertechnik Gmbh | Diaphragm rupture indicator |
-
1971
- 1971-09-15 DE DE19712146016 patent/DE2146016A1/en active Pending
-
1972
- 1972-07-18 GB GB3360272A patent/GB1395403A/en not_active Expired
- 1972-08-23 IT IT2840072A patent/IT964169B/en active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2388163A (en) * | 2001-05-09 | 2003-11-05 | David R Marshall | Cooling a flexible pump seal |
| EP1418366A1 (en) * | 2002-11-06 | 2004-05-12 | John Bowen | Fluid cooled diaphragm |
| EP3480460A1 (en) * | 2017-11-02 | 2019-05-08 | AVS Added Value Industrial Engineering Solutions, S.L. | Volumetric pump |
| US11686301B2 (en) | 2019-04-02 | 2023-06-27 | Northern Tool & Equipment Company, Inc. | Pump system with leak damage protection |
| CN111502977A (en) * | 2020-05-14 | 2020-08-07 | 重庆水泵厂有限责任公司 | Cooling isolator and isolation pump |
| CN111502977B (en) * | 2020-05-14 | 2021-10-15 | 重庆水泵厂有限责任公司 | Cooling isolator and isolation pump |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2146016A1 (en) | 1973-03-22 |
| IT964169B (en) | 1974-01-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |