BE454451A - - Google Patents
Info
- Publication number
- BE454451A BE454451A BE454451DA BE454451A BE 454451 A BE454451 A BE 454451A BE 454451D A BE454451D A BE 454451DA BE 454451 A BE454451 A BE 454451A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
- H01H33/83—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas wherein the contacts are opened by the flow of air or gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/785—With retarder or dashpot
- Y10T137/7852—End of valve moves inside dashpot chamber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH576989X | 1943-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE454451A true BE454451A (da) | 1900-01-01 |
Family
ID=4521268
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE454451D BE454451A (da) | 1943-02-18 | ||
| BE576989A BE576989A (fr) | 1958-03-24 | 1959-03-23 | Procédé de préparation de nouveaux mercapto-composés |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE576989A BE576989A (fr) | 1958-03-24 | 1959-03-23 | Procédé de préparation de nouveaux mercapto-composés |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2417274A (da) |
| BE (2) | BE576989A (da) |
| CH (1) | CH232447A (da) |
| FR (1) | FR902809A (da) |
| GB (1) | GB576989A (da) |
| NL (1) | NL60926C (da) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE601563C (de) * | 1930-01-12 | 1934-08-18 | Emil Lange | Schalter mit Loeschung des Lichtbogens durch einen Druckgasstrom |
| US2197148A (en) * | 1937-06-03 | 1940-04-16 | United Aircraft Corp | Backfire door |
| US2221720A (en) * | 1937-08-25 | 1940-11-12 | Gen Electric | Electric circuit interrupter |
| BE447360A (da) * | 1938-05-27 | |||
| US2196247A (en) * | 1938-10-18 | 1940-04-09 | Wright Aeronautical Corp | Supercharger relief valve |
| US2345724A (en) * | 1942-03-19 | 1944-04-04 | Westinghouse Electric & Mfg Co | Circuit breaker |
-
0
- BE BE454451D patent/BE454451A/xx unknown
- NL NL60926D patent/NL60926C/xx active
-
1943
- 1943-02-18 CH CH232447D patent/CH232447A/de unknown
-
1944
- 1944-02-18 US US522935A patent/US2417274A/en not_active Expired - Lifetime
- 1944-03-18 FR FR902809D patent/FR902809A/fr not_active Expired
- 1944-05-19 GB GB9695/44A patent/GB576989A/en not_active Expired
-
1959
- 1959-03-23 BE BE576989A patent/BE576989A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE576989A (fr) | 1959-09-23 |
| NL60926C (da) | 1900-01-01 |
| CH232447A (de) | 1944-05-31 |
| GB576989A (en) | 1946-04-30 |
| US2417274A (en) | 1947-03-11 |
| FR902809A (fr) | 1945-09-13 |