JPS4914881A - - Google Patents
Info
- Publication number
- JPS4914881A JPS4914881A JP3911873A JP3911873A JPS4914881A JP S4914881 A JPS4914881 A JP S4914881A JP 3911873 A JP3911873 A JP 3911873A JP 3911873 A JP3911873 A JP 3911873A JP S4914881 A JPS4914881 A JP S4914881A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
Landscapes
- Safety Devices In Control Systems (AREA)
- Emergency Protection Circuit Devices (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24154572A | 1972-04-06 | 1972-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4914881A true JPS4914881A (de) | 1974-02-08 |
Family
ID=22911132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3911873A Pending JPS4914881A (de) | 1972-04-06 | 1973-04-05 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4914881A (de) |
| CA (1) | CA983569A (de) |
| DE (1) | DE2316039C2 (de) |
| FR (1) | FR2179151B1 (de) |
| GB (1) | GB1412036A (de) |
| IT (1) | IT982957B (de) |
| NL (1) | NL7304743A (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2359532A1 (fr) * | 1976-07-20 | 1978-02-17 | Cit Alcatel | Dispositif de limitation des variations de potentiel des bornes d'une charge alimentee par une source de courant continu a masse flottante |
| SE414357B (sv) * | 1978-08-17 | 1980-07-21 | Asea Ab | Overspenningsskydd for skydd av halvledarkomponenter av lageffekttyp |
| US4807081A (en) * | 1986-09-05 | 1989-02-21 | Raychem Limited | Circuit protection arrangement |
| US4954923A (en) * | 1988-08-19 | 1990-09-04 | Cooper Industries, Inc. | Intrinsic safety module interface |
| DE3832068A1 (de) * | 1988-09-21 | 1990-03-22 | Stahl R Schaltgeraete Gmbh | Explosionsgeschuetzte elektrische sicherheitsbarriere |
| DE3906621C2 (de) * | 1989-03-02 | 1995-05-04 | Hemscheidt Maschf Hermann | Eigensichere Stromversorgungseinheit |
| GB2238191A (en) * | 1989-10-19 | 1991-05-22 | Drexelbrook Controls | Intrinsically safe system |
| US10418806B2 (en) | 2015-03-10 | 2019-09-17 | Hewlett-Packard Development Company, L.P. | Safety protection circuit |
| US10942499B2 (en) * | 2017-08-16 | 2021-03-09 | Honeywell International Inc. | Intrinsic safety (IS) barrier with associated energy limiting apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1133750A (en) * | 1966-12-02 | 1968-11-13 | Foxboro Yoxall Ltd | Electrical barrier device |
| US3631264A (en) * | 1970-02-11 | 1971-12-28 | Sybron Corp | Intrinsically safe electrical barrier system and improvements therein |
-
1973
- 1973-03-07 GB GB1101673A patent/GB1412036A/en not_active Expired
- 1973-03-30 DE DE19732316039 patent/DE2316039C2/de not_active Expired
- 1973-04-04 IT IT4923073A patent/IT982957B/it active
- 1973-04-05 JP JP3911873A patent/JPS4914881A/ja active Pending
- 1973-04-05 CA CA167,990A patent/CA983569A/en not_active Expired
- 1973-04-05 NL NL7304743A patent/NL7304743A/xx unknown
- 1973-04-05 FR FR7312266A patent/FR2179151B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2316039A1 (de) | 1973-10-18 |
| IT982957B (it) | 1974-10-21 |
| GB1412036A (en) | 1975-10-29 |
| AU5251773A (en) | 1974-08-22 |
| FR2179151A1 (de) | 1973-11-16 |
| FR2179151B1 (de) | 1977-08-05 |
| CA983569A (en) | 1976-02-10 |
| DE2316039C2 (de) | 1984-01-26 |
| NL7304743A (de) | 1973-10-09 |