NL89647C - - Google Patents
Info
- Publication number
- NL89647C NL89647C NL89647DA NL89647C NL 89647 C NL89647 C NL 89647C NL 89647D A NL89647D A NL 89647DA NL 89647 C NL89647 C NL 89647C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/44—Means for preventing access to live contacts
- H01R13/447—Shutter or cover plate
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
- H01H9/042—Explosion-proof cases
- H01H9/043—Explosion-proof cases with pressure-relief devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Casings For Electric Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES24425A DE977194C (de) | 1951-08-16 | 1951-08-16 | Druckfestes, rechteckiges Gehaeuse mit Deckel, der mit Hilfe von Scharnieren an Gehaeusen angelenkt ist, fuer die Kapselung von elektrischen Schaltgeraeten fuer Grubenbetriebe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL89647C true NL89647C (sh) |
Family
ID=7477857
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL89647D NL89647C (sh) | 1951-08-16 | ||
| NLAANVRAGE7208603,A NL171383C (nl) | 1951-08-16 | Werkwijze voor het vervaardigen van gedrukte bedradingen alsmede materiaal dat geschikt is om daarbij te worden gebruikt. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7208603,A NL171383C (nl) | 1951-08-16 | Werkwijze voor het vervaardigen van gedrukte bedradingen alsmede materiaal dat geschikt is om daarbij te worden gebruikt. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE513524A (sh) |
| DE (1) | DE977194C (sh) |
| NL (2) | NL171383C (sh) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE532265C (de) * | 1931-08-26 | Walter Freytag Dr Ing | Verschluss fuer Kernkasten | |
| DE611681C (de) * | 1935-04-02 | Sachsenwerk Licht & Kraft Ag | Labyrinthartige Spaltdichtung zwischen der Kapselung von elektrischen Maschinen oder Apparaten, in der betriebsmaessig Funken entstehen koennen, und der aus dieser Kapsel herausgefuehrten Welle | |
| DE653671C (sh) * | ||||
| US942002A (en) * | 1907-05-11 | 1909-11-30 | Le Manquais Electrical Mfg Company | Wall-cabinet for electrical apparatus. |
| DE268580C (sh) * | 1911-10-11 | |||
| NL44944C (sh) * | 1936-04-18 | |||
| DE731863C (de) * | 1938-01-09 | 1943-02-17 | Siemens Ag | Deckel fuer explosionsgeschuetzte Gehaeuse elektrischer Geraete |
| US2333547A (en) * | 1939-01-10 | 1943-11-02 | Westinghouse Electric & Mfg Co | Explosion-proof circuit interrupter |
| DE733475C (de) * | 1939-01-12 | 1943-03-26 | Siemens Ag | Eckiges, explosionsgeschuetztes Gehaeuse fuer elektrische Geraete, bei dem die Anpressung des Deckels gegen das Gehaeuse mittels Keilflaechen erfolgt |
| DE763334C (de) * | 1939-03-24 | 1952-12-08 | Calor Emag Elek Zitaets A G | Druckfestes Gehaeuse mit Klappdeckel |
| DE972541C (de) * | 1944-12-09 | 1959-08-20 | Siemens Ag | Verbindung geteilter Gehaeuse fuer elektrische Geraete, insbesondere Kabelgarnituren |
| DE927039C (de) * | 1950-05-23 | 1955-04-28 | Licentia Gmbh | Keilverschluss an Gehaeusen schlagwettergeschuetzter, druckfest gekapselter elektrischer Geraete |
-
0
- NL NL89647D patent/NL89647C/xx active
- NL NLAANVRAGE7208603,A patent/NL171383C/xx active
- BE BE513524D patent/BE513524A/xx unknown
-
1951
- 1951-08-16 DE DES24425A patent/DE977194C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE513524A (sh) | |
| DE977194C (de) | 1965-07-22 |
| NL171383C (nl) |