CA938964A - Differential pressure switch - Google Patents
Differential pressure switchInfo
- Publication number
- CA938964A CA938964A CA130095A CA130095A CA938964A CA 938964 A CA938964 A CA 938964A CA 130095 A CA130095 A CA 130095A CA 130095 A CA130095 A CA 130095A CA 938964 A CA938964 A CA 938964A
- Authority
- CA
- Canada
- Prior art keywords
- differential pressure
- pressure switch
- switch
- differential
- pressure
- 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
-
- 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
- H01H35/32—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10265670A | 1970-12-30 | 1970-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA938964A true CA938964A (en) | 1973-12-25 |
Family
ID=22290980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA130095A Expired CA938964A (en) | 1970-12-30 | 1971-12-14 | Differential pressure switch |
Country Status (5)
Country | Link |
---|---|
US (1) | US3742165A (en) |
CA (1) | CA938964A (en) |
DE (1) | DE2164752A1 (en) |
FR (1) | FR2121136A5 (en) |
GB (1) | GB1371636A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063057A (en) * | 1975-04-23 | 1977-12-13 | Meisenheimer Jr Daniel T | Temperature compensated pressure differential sensing devices, including improved press-to-test and glass header switch mounting |
US4006329A (en) * | 1975-05-14 | 1977-02-01 | Westport Development & Mfg. Co. Inc. | Switch for sensing a selected ratio between two different pressures |
US4439654A (en) * | 1982-09-29 | 1984-03-27 | Motorola, Inc. | Waterproof control knob assembly with integral switch |
DE8312296U1 (en) * | 1983-04-27 | 1983-12-01 | Ranco Inc., 43017 Dublin, Ohio | Temperature-dependent switch |
US4645888A (en) * | 1984-04-09 | 1987-02-24 | Raychem Corporation | Load break switch with safety mechanism |
US7732722B1 (en) * | 2009-02-24 | 2010-06-08 | Honeywell International Inc. | Hermetically sealed pressure switch with composite actuation mechanism |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA634082A (en) * | 1962-01-09 | A. Starbird George | Pressure switch | |
FR694892A (en) * | 1930-05-02 | 1930-12-09 | Automatic switch-warning device for ignition circuits in automobile and other engines | |
US2395007A (en) * | 1944-04-10 | 1946-02-19 | United Electric Controls Co | Automatic circuit controller |
US2475069A (en) * | 1945-11-09 | 1949-07-05 | Delos R Wood | Warning device for refrigerators |
US2693240A (en) * | 1948-02-05 | 1954-11-02 | Graviner Manufacturing Co | Method and apparatus for preventing explosions and extinguishing fires |
US2890305A (en) * | 1957-04-15 | 1959-06-09 | Parmatic Engineering Ltd | Hermetically sealed pressure sensitive switch having exteriorly suspended actuating means |
US3056004A (en) * | 1959-08-10 | 1962-09-25 | Allen V C Davis | Sensitive pressure switch |
US3132592A (en) * | 1961-02-13 | 1964-05-12 | Albert Products Inc | Level controlled pumping systems and switch assemblies therefor |
US3431378A (en) * | 1967-09-27 | 1969-03-04 | Westport Dev Mfg Co | Hermetically impervious switch |
-
1970
- 1970-12-30 US US00102656A patent/US3742165A/en not_active Expired - Lifetime
-
1971
- 1971-12-14 CA CA130095A patent/CA938964A/en not_active Expired
- 1971-12-17 GB GB5871671A patent/GB1371636A/en not_active Expired
- 1971-12-27 DE DE19712164752 patent/DE2164752A1/en active Pending
- 1971-12-30 FR FR7147515A patent/FR2121136A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2121136A5 (en) | 1972-08-18 |
GB1371636A (en) | 1974-10-23 |
US3742165A (en) | 1973-06-26 |
DE2164752A1 (en) | 1972-07-27 |
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