FR727880A - Mercury switch - Google Patents
Mercury switchInfo
- Publication number
- FR727880A FR727880A FR727880DA FR727880A FR 727880 A FR727880 A FR 727880A FR 727880D A FR727880D A FR 727880DA FR 727880 A FR727880 A FR 727880A
- Authority
- FR
- France
- Prior art keywords
- mercury switch
- mercury
- switch
- 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
- H01H29/00—Switches having at least one liquid contact
- H01H29/18—Switches having at least one liquid contact with level of surface of contact liquid displaced by non-electrical contact-making plunger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Contacts (AREA)
- Manufacture Of Switches (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE378738X | 1930-12-06 | ||
DEA61025D DE606734C (en) | 1930-12-06 | 1931-03-06 | Mercury interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR727880A true FR727880A (en) | 1932-06-25 |
Family
ID=25863726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR727880D Expired FR727880A (en) | 1930-12-06 | 1931-12-05 | Mercury switch |
Country Status (5)
Country | Link |
---|---|
US (1) | US1984478A (en) |
DE (1) | DE606734C (en) |
FR (1) | FR727880A (en) |
GB (2) | GB378738A (en) |
NL (1) | NL34211C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417763A (en) * | 1941-11-24 | 1947-03-18 | Adlake Co | Mercury switch relay |
DE965877C (en) * | 1955-01-27 | 1957-06-27 | Thermometerwerk Geraberg Verwa | Immersion armature for vertically operating mercury switching relays |
US3240900A (en) * | 1961-12-21 | 1966-03-15 | Albert H Halff | Electric relay |
-
0
- NL NL34211D patent/NL34211C/xx active
-
1931
- 1931-03-06 DE DEA61025D patent/DE606734C/en not_active Expired
- 1931-12-05 FR FR727880D patent/FR727880A/en not_active Expired
- 1931-12-07 GB GB33935/31A patent/GB378738A/en not_active Expired
-
1932
- 1932-02-04 GB GB3399/32A patent/GB382826A/en not_active Expired
- 1932-03-04 US US596846A patent/US1984478A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB382826A (en) | 1932-11-03 |
GB378738A (en) | 1932-08-18 |
US1984478A (en) | 1934-12-18 |
DE606734C (en) | 1934-12-12 |
NL34211C (en) |
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