JPS541026B2 - - Google Patents
Info
- Publication number
- JPS541026B2 JPS541026B2 JP13283775A JP13283775A JPS541026B2 JP S541026 B2 JPS541026 B2 JP S541026B2 JP 13283775 A JP13283775 A JP 13283775A JP 13283775 A JP13283775 A JP 13283775A JP S541026 B2 JPS541026 B2 JP S541026B2
- Authority
- JP
- Japan
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
- G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Multiple-Way Valves (AREA)
- Measuring Fluid Pressure (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/529,866 US3946176A (en) | 1974-12-04 | 1974-12-04 | Differential pressure switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5171971A JPS5171971A (en) | 1976-06-22 |
| JPS541026B2 true JPS541026B2 (cg-RX-API-DMAC10.html) | 1979-01-19 |
Family
ID=24111560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50132837A Granted JPS5171971A (en) | 1974-12-04 | 1975-11-05 | Sadosuitsuchi |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3946176A (cg-RX-API-DMAC10.html) |
| JP (1) | JPS5171971A (cg-RX-API-DMAC10.html) |
| BR (1) | BR7507841A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1039780A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2553327C2 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2293780A1 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1515178A (cg-RX-API-DMAC10.html) |
| IT (1) | IT1047722B (cg-RX-API-DMAC10.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3225978C2 (de) * | 1982-07-10 | 1986-08-28 | Robert Bosch Gmbh, 7000 Stuttgart | Druckschalter |
| US5122628A (en) * | 1990-05-25 | 1992-06-16 | Fike Corporation | Sudden pressure rise detector |
| US6089098A (en) * | 1998-04-16 | 2000-07-18 | Dwyer Instruments, Inc. | Differential pressure switch having an isolated hall effect sensor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735369A (en) * | 1956-02-21 | turvey | ||
| US2173082A (en) * | 1935-09-27 | 1939-09-12 | Westinghouse Electric & Mfg Co | Refrigeration apparatus |
| US2253365A (en) * | 1938-11-26 | 1941-08-19 | Westinghouse Electric & Mfg Co | Control system |
| US2917081A (en) * | 1955-12-02 | 1959-12-15 | Barton Instr Corp | Vented seal |
| US3034357A (en) * | 1959-07-15 | 1962-05-15 | George T Brown | Fluid pressure operated devices |
| US3240065A (en) * | 1961-07-05 | 1966-03-15 | Taber Instr Corp | Differential pressure transducer |
| US3393612A (en) * | 1966-05-12 | 1968-07-23 | Dresser Ind | Pressure responsive device |
| US3566060A (en) * | 1968-06-07 | 1971-02-23 | F W Dwyer Mfg Co Inc | Pressure responsive switch with improved diaphragm operating means |
| US3626813A (en) * | 1970-07-23 | 1971-12-14 | Robertshaw Controls Co | Differential pressure cell |
| US3751988A (en) * | 1971-03-30 | 1973-08-14 | Mary Catholeene Reese | Differential pressure responsive device |
| US3859484A (en) * | 1973-09-10 | 1975-01-07 | Robert E Nelson | Cyclic pressure switch with plural diaphrams |
-
1974
- 1974-12-04 US US05/529,866 patent/US3946176A/en not_active Expired - Lifetime
-
1975
- 1975-09-25 CA CA236,405A patent/CA1039780A/en not_active Expired
- 1975-10-07 IT IT51682/75A patent/IT1047722B/it active
- 1975-10-20 GB GB42977/75A patent/GB1515178A/en not_active Expired
- 1975-11-05 JP JP50132837A patent/JPS5171971A/ja active Granted
- 1975-11-25 DE DE2553327A patent/DE2553327C2/de not_active Expired
- 1975-11-26 BR BR7507841*A patent/BR7507841A/pt unknown
- 1975-12-02 FR FR7536818A patent/FR2293780A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CA1039780A (en) | 1978-10-03 |
| GB1515178A (en) | 1978-06-21 |
| IT1047722B (it) | 1980-10-20 |
| BR7507841A (pt) | 1976-08-24 |
| US3946176A (en) | 1976-03-23 |
| DE2553327A1 (de) | 1976-06-10 |
| JPS5171971A (en) | 1976-06-22 |
| FR2293780A1 (fr) | 1976-07-02 |
| FR2293780B1 (cg-RX-API-DMAC10.html) | 1981-09-04 |
| DE2553327C2 (de) | 1984-03-22 |