GB1019836A - An explosion-proof switching device - Google Patents
An explosion-proof switching deviceInfo
- Publication number
- GB1019836A GB1019836A GB509363A GB509363A GB1019836A GB 1019836 A GB1019836 A GB 1019836A GB 509363 A GB509363 A GB 509363A GB 509363 A GB509363 A GB 509363A GB 1019836 A GB1019836 A GB 1019836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- explosion
- switch
- proof
- feb
- enclosed
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- 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
- H01H9/046—Explosion-proof cases with internal explosion inhibiting means
Landscapes
- Table Devices Or Equipment (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
1,019,836. Switch cases. SIEMENSSCHUCKERTWERKE A.G. Feb. 7, 1963 [Feb. 14, 1962], No. 5093/63. Heading H2B. An electric switch designed to prevent the possibility of causing an explosion in an ignitable atmosphere is enclosed and sealed in a casing and actuated by a rod passing through a passage in an insert of rigid material, the clearance being " explosion-proof," i.e. small enough to prevent any sparking, which occurs in the device, from igniting an explosive atmosphere outside it. In the form described, a casing, comprising a front wall 21, Fig. 1 (n t shown), and a continuous side wall 2, completely surrounds a switch 1 of known construction, which is sealed around its operating knob 4 by an 0-ring 5 and which is enclosed by a mass of synthetic resin 26. The latter also seals around terminal posts 11 and, if desired, a cover 9 may be fitted over the assembly. The switch is operated by a push-rod 8 which slides, with clearance sufficiently small to be " explosion proof," in a rigid guide 6 set in the wall 21 of the cover member.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0078024 | 1962-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1019836A true GB1019836A (en) | 1966-02-09 |
Family
ID=7507178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB509363A Expired GB1019836A (en) | 1962-02-14 | 1963-02-07 | An explosion-proof switching device |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE628350A (en) |
| DE (1) | DE1490270A1 (en) |
| GB (1) | GB1019836A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8411211U1 (en) * | 1984-04-10 | 1988-09-08 | Barlian, Reinhold, Dipl.-Ing. (Fh), 6990 Bad Mergentheim, De | |
| DE3521153A1 (en) * | 1985-06-13 | 1986-12-18 | Brown, Boveri & Cie Ag, 6800 Mannheim | SELF-SWITCH |
-
0
- BE BE628350D patent/BE628350A/xx unknown
-
1962
- 1962-02-14 DE DE19621490270 patent/DE1490270A1/en active Pending
-
1963
- 1963-02-07 GB GB509363A patent/GB1019836A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE628350A (en) | |
| DE1490270A1 (en) | 1969-07-03 |
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