NL66974C - - Google Patents
Info
- Publication number
- NL66974C NL66974C NL66974DA NL66974C NL 66974 C NL66974 C NL 66974C NL 66974D A NL66974D A NL 66974DA NL 66974 C NL66974 C NL 66974C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
- H01H1/08—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved wetted with mercury
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
- H01H51/287—Details of the shape of the contact springs
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US340652A US2302546A (en) | 1940-06-15 | 1940-06-15 | Electric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL66974C true NL66974C (de) |
Family
ID=23334366
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL132811D NL132811B (de) | 1940-06-15 | ||
| NL66974D NL66974C (de) | 1940-06-15 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL132811D NL132811B (de) | 1940-06-15 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2302546A (de) |
| NL (2) | NL66974C (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2519463A (en) * | 1946-08-09 | 1950-08-22 | Bell Telephone Lab Incorproate | Mercury type relay |
| US2508508A (en) * | 1946-08-10 | 1950-05-23 | Bell Telephone Labor Inc | Mercury contact for electrical switches |
| US3290615A (en) * | 1965-06-23 | 1966-12-06 | Peter K Ludwig | Mercury-wetted fixed electrode electric arc generator |
| US4804932A (en) * | 1986-08-22 | 1989-02-14 | Nec Corporation | Mercury wetted contact switch |
-
0
- NL NL132811D patent/NL132811B/xx unknown
- NL NL66974D patent/NL66974C/xx active
-
1940
- 1940-06-15 US US340652A patent/US2302546A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL132811B (de) | |
| US2302546A (en) | 1942-11-17 |