WO2000012969B1 - Gas meter diaphragm - Google Patents
Gas meter diaphragmInfo
- Publication number
- WO2000012969B1 WO2000012969B1 PCT/US1999/020008 US9920008W WO0012969B1 WO 2000012969 B1 WO2000012969 B1 WO 2000012969B1 US 9920008 W US9920008 W US 9920008W WO 0012969 B1 WO0012969 B1 WO 0012969B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diaphragm
- rim
- gas meter
- rib
- sidewall
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
- G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
- G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
- G01F3/225—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases characterised by constructional features of membranes or by means for improving proper functioning of membranes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/16—Diaphragms; Bellows; Mountings therefor
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A gas meter diaphragm is formed from liquid injected silicone rubber, with an integral annular bead (124) that permits its attachment to a pan assembly (80) without retaining rings or adhesives. By using liquid injected silicone rubber, the diaphragm can be molded rather than cut from a material sheet, allowing the diaphragm to have integrally formed retaining rings (124, 120, 220) or other physical features (100) or other physical features (100) with varying thicknesses of material.
Claims
1. A diaphragm (82) for a gas meter having a diaphragm assembly comprising a pan with a peripheral groove and a plate with a peripheral groove, opposing the pan, the diaphragm comprising: a rim (122) defining a first opening and configured to be received within a pan peripheral groove; a rib (120), spaced from the rim, defining a second opening and configured to be received within a plate peripheral groove; and a sidewall (102) extending between the rim and the rib wherein the sidewall comprises at least one substantially straight portion and at least one arcuate portion when the sidewall is in an undeformed state .
2. The diaphragm according to claim 1 wherein the sidewall (102), the rib (120), and the rim (122) are integrally formed as one piece from a gas-impeπneable elastic material.
3. The diaphragm according to claim 1 or 2 wherein the elastic material is silicone rubber.
4. The diaphragm according to claim 1, 2, or 3 and further comprising a flange (100) extending from the sidewall and spaced from the rim so that the flange is adapted to abut a portion of a pan when the rim is received within a pan peripheral groove.
5. The diaphragm according to claim 1 or 4 wherein the rim further comprises a bead (1 6) that is sized to be received within a pan peripheral groove.
6. The diaphragm according to claim 1 or 4 wherein the rib has multiple protrusions that are sized to be press fit within a plate peripheral groove.
7. The diaphragm according to claim 6 wherein the multiple protrusions comprise at least two opposing, laterally extending ribs.
8. The diaphragm according to claim 7 wherein the multiple protrusions comprise at least two spaced legs.
9. The diaphragm according to claim 1 or 4 wherein there are two ribs (120, 220).
10. The diaphragm according to claim 9 wherein the two ribs are concentrically spaced from one another.
11. The diaphragm according to claim 1 or 4 wherein the rim and the rib are continuous.
12. The diaphragm according to claim 11 wherein the rim and rib are annular.
13. [Canceled].
14. The diaphragm according to claim 12 and further comprising a strengthening rib positioned adjacent the junction of the sidewall straight portion and arcuate portion.
15. The diaphragm according to claim 14 wherein the strengthening rib is continuous.
16. The diaphragm according to claim 14 wherein the strengthening rib is circumferential.
17. The diaphragm according to claim 1 and further comprising a strengthening rib extending from the sidewall.
- 22 -
18. The diaphragm according to claim 17 wherein the strengthening rib is continuous.
19. The diaphragm according to claim 18 wherein the strengthening rib is circumferential.
20. In a gas meter (10) comprising a housing (16) defining at least one outer metered chamber (33) and a corresponding gas inlet (12), a diaphragm assembly (32) comprising a pan (80) and a central plate (78) connected by a flexible diaphragm (82) and defining an inner metered chamber (35) and being positioned within the at least one outer metered chamber, and a valve assembly (18) for controlling the flow of gas through the inner and outer metered chambers by reciprocating the central plate relative to the pan, the improvement wherein: the diaphragm is made from silicone rubber.
21. The gas meter according to claim 20 wherein the diaphragm comprises: a rim (122) defining a first opening and configured to be received within the pan peripheral groove; a rib (120), spaced from the rim, defining a second opening and configured to be received within the plate peripheral groove; and a sidewall (102) extending between the rim and the rib and providing the diaphragm with a toroidal configuration with the first and second forming a pass through opening.
22. The gas meter according to claim 21 wherein the sidewall (102), the rib (120), and the annular rim (122) are integrally formed as one piece from a gas- impermeable elastic material.
23. The gas meter according to claim 21 and further comprising a flange (100) extending from the sidewall and spaced from the rim so that the flange is
adapted to abut a portion of the pan when the rim is received within the pan peripheral groove.
24. The gas meter according to claim 21 wherein the rim further comprises a bead (126) that is sized to be received within the pan peripheral groove.
25. The gas meter according to claim 24 wherein the rib has multiple protrusions that are sized to be press fit within the plate peripheral groove.
26. The gas meter according to claim 20 wherein there are two ribs ( 120, 220).
27. The gas meter according to claim 26 wherein the two ribs are concentrically spaced from one another.
28. The gas meter according to claim 27 wherein the rim and the rib are continuous.
29. The gas meter according to claim 28 wherein the rim and rib are annular.
30. The gas meter according to claim 20 wherein the sidewall comprises at least one substantially straight portion and at least one arcuate portion.
31. The gas meter according to claim 30 and further comprising a strengthening rib positioned adjacent the junction of the sidewall straight portion and arcuate portion.
32. The gas meter according to claim 31 wherein the strengthening rib is continuous.
- 24 -
33. The gas meter according to claim 32 wherein the strengthening rib is circumferential .
32. The diaphragm according to claim 20 wherein the plate is one piece.
33. (NEW) A diaphragm (82) for a gas meter having a diaphragm assembly comprising a pan with a peripheral groove and a plate with a peripheral groove, opposing the pan, the diaphragm comprising: a rim (122) defining a first opening and configured to be received within a pan peripheral groove; a rib (120), spaced from the rim, defining a second opening and configured to be received within a plate peripheral groove; a sidewall (102) extending between the rim and the rib; and
a strengthening rib extending from the sidewall to retard the inverting of the sidewall.
34. (NEW) The diaphragm according to claim 33 wherein the sidewall comprises at least one substantially straight portion and at least one arcuate portion when the sidewall is in an undeformed state.
35. (NEW) The diaphragm according to claim 33 wherein the strengthening rib is continuous.
36. (NEW) The diaphragm according to claim 35 wherein the strengthening rib is circumferential.
37. (NEW) A gas meter (10) comprising: a housing (16) defining at least one outer metered chamber (33) and a corresponding gas inlet (12); a diaphragm assembly (32) comprising a pan (80) and a central plate (78) connected by a flexible diaphragm (82) and defining an inner metered
chamber (35) and being positioned within the at least one outer metered chamber; a valve assembly (18) for controlling the flow of gas through the inner and outer metered chambers by reciprocating the central plate relative to the pan, and wherein the diaphragm comprises: a rim (122) defining a first opening and configured to be received within the pan peripheral groove; a rib (120), spaced from the rim, defining a second opening and configured to be received within the plate peripheral groove; and a sidewall (102) extending between the rim and the rib and providing the diaphragm with a toroidal configuration with the first and second openings forming a pass through opening.
38. (NEW) The gas meter according to claim 37 wherein the diaphragm is made from silicone rubber.
39. (NEW) The gas meter according to claim 37 wherein the sidewall comprises at least one substantially straight portion and at least one arcuate portion when the sidewall is in an undeformed state.
40. (NEW) The gas meter according to claim 39 wherein the strengthening rib is continuous.
41. (NEW) The gas meter according to claim 40 wherein the strengthening rib is circumferential.
42. (NEW) The gas meter according to claim 37 wherein the sidewall (102), the rib (120), and the annular rim (122) axe integrally formed as one piece from a gas-impermeable elastic material.
43. (NEW) The gas meter according to claim 42 and further comprising a flange (100) extending from the sidewall and spaced from the rim so that the flange is
- 26 -
adapted to abut a portion of the pan when the rim is received within the pan peripheral groove.
44. (NEW) The gas meter according to claim 37 wherein the rim further comprises a bead (126) that is sized to be received within the pan peripheral groove.
45. (NEW) The gas meter according to claim 44 wherein the rib has multiple protrusions that are sized to be press fit within the plate peripheral groove.
46. (NEW) The gas meter according to claim 45 wherein there are two ribs (120, 220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU57988/99A AU5798899A (en) | 1998-09-01 | 1999-09-01 | Gas meter diaphragm |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9871798P | 1998-09-01 | 1998-09-01 | |
| US60/098,717 | 1998-09-01 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| WO2000012969A2 WO2000012969A2 (en) | 2000-03-09 |
| WO2000012969A3 WO2000012969A3 (en) | 2000-06-22 |
| WO2000012969B1 true WO2000012969B1 (en) | 2000-07-27 |
| WO2000012969A9 WO2000012969A9 (en) | 2000-09-08 |
Family
ID=22270586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1999/020008 WO2000012969A2 (en) | 1998-09-01 | 1999-09-01 | Gas meter diaphragm |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU5798899A (en) |
| WO (1) | WO2000012969A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10226410A1 (en) * | 2002-06-13 | 2004-01-08 | Helsa-Werke Helmut Sandler Gmbh & Co. Kg | Flexible elastomeric membrane, process for producing the same and its use |
| US8104397B2 (en) * | 2008-09-30 | 2012-01-31 | M&Fc Holding, Llc | Gas metering diaphragm |
| CN108080913B (en) * | 2017-12-14 | 2019-10-01 | 四川福德机器人股份有限公司 | The rocker arm assembly of gas meter, flow meter assembles equipment |
| RU189110U1 (en) * | 2019-01-10 | 2019-05-13 | Акционерное общество Научно-производственное объединение "Электроприбор-Воронеж" (АО НПО "Электроприбор-Воронеж") | Diaphragm gas meter with rotary valve timing |
| RU2696362C1 (en) * | 2019-01-10 | 2019-08-01 | Акционерное общество Научно-производственное объединение "Электроприбор-Воронеж" (АО НПО "Электроприбор-Воронеж") | Method for temperature correction of a membrane gas meter with a rotary gas distribution valve and a device for its implementation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2793621A (en) * | 1953-09-08 | 1957-05-28 | Aronco Meter Products Corp | High capacity gas meter |
| US2811925A (en) * | 1954-02-24 | 1957-11-05 | Exxon Research Engineering Co | Device for transmitting pressure and pumping fluids |
| US2721579A (en) * | 1954-03-09 | 1955-10-25 | Westinghouse Air Brake Co | Flexible diaphragm support |
| DE2023858A1 (en) * | 1970-05-15 | 1971-12-02 | Daimler Benz Ag | |
| JPS58144105U (en) * | 1982-03-24 | 1983-09-28 | 株式会社大金製作所 | Diaphragm type vacuum actuator |
| EP0131646B1 (en) * | 1983-07-19 | 1989-05-31 | Biomelktechnik Hoefelmayr & Co. | Air inlet valve for the milk line of a teat cup or a milk claw |
| US4915018A (en) * | 1988-09-13 | 1990-04-10 | American Standard Inc. | Diaphragm piston assembly |
| US5217797A (en) * | 1992-02-19 | 1993-06-08 | W. L. Gore & Associates, Inc. | Chemically resistant diaphragm |
-
1999
- 1999-09-01 WO PCT/US1999/020008 patent/WO2000012969A2/en active Application Filing
- 1999-09-01 AU AU57988/99A patent/AU5798899A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU5798899A (en) | 2000-03-21 |
| WO2000012969A9 (en) | 2000-09-08 |
| WO2000012969A2 (en) | 2000-03-09 |
| WO2000012969A3 (en) | 2000-06-22 |
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