NL34211C - - Google Patents
Info
- Publication number
- NL34211C NL34211C NL34211DA NL34211C NL 34211 C NL34211 C NL 34211C NL 34211D A NL34211D A NL 34211DA NL 34211 C NL34211 C NL 34211C
- Authority
- NL
- Netherlands
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 (de) | 1930-12-06 | 1931-03-06 | Quecksilberschaltroehre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL34211C true NL34211C (en:Method) |
Family
ID=25863726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL34211D NL34211C (en:Method) | 1930-12-06 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1984478A (en:Method) |
| DE (1) | DE606734C (en:Method) |
| FR (1) | FR727880A (en:Method) |
| GB (2) | GB378738A (en:Method) |
| NL (1) | NL34211C (en:Method) |
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 (de) * | 1955-01-27 | 1957-06-27 | Thermometerwerk Geraberg Verwa | Tauchanker fuer vertikal arbeitende Quecksilber-Schaltrelais |
| 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/de not_active Expired
- 1931-12-05 FR FR727880D patent/FR727880A/fr 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 |
|---|---|
| US1984478A (en) | 1934-12-18 |
| GB382826A (en) | 1932-11-03 |
| FR727880A (fr) | 1932-06-25 |
| GB378738A (en) | 1932-08-18 |
| DE606734C (de) | 1934-12-12 |