EP0500647B1 - Electrical device for switching on reserve power - Google Patents
Electrical device for switching on reserve power Download PDFInfo
- Publication number
- EP0500647B1 EP0500647B1 EP90916536A EP90916536A EP0500647B1 EP 0500647 B1 EP0500647 B1 EP 0500647B1 EP 90916536 A EP90916536 A EP 90916536A EP 90916536 A EP90916536 A EP 90916536A EP 0500647 B1 EP0500647 B1 EP 0500647B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- appliance
- line
- operating
- inlet
- 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 - Lifetime
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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
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/018—Application transfer; between utility and emergency power supply
-
- 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
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/707—Structural association with built-in electrical component with built-in switch interlocked with contact members or counterpart
Definitions
- the present invention relates to an electrical appliance for switching on reserve power, said appliance being adapted for installation in an electric mains with primary power supply and comprising a casing having an input and an output which are electrically interconnected by a first line and adapted to be connected to the mains; a switch connected in said first line; and an appliance inlet connected to said first line by a second line.
- the invention concerns a mechanically locked inlet, viz. a reserve power inlet, enabling power supply from a reserve power unit to the electric mains of e.g. a building when the primary power supply fails, for instance because a sector fuse has blown, a power transmission line been damaged, or a switching station dropped out.
- Present-day electrical appliances for switching on reserve power relies either on at least two mechanically operated switches connected in series or on at least two electrically operated switches connected in series. In both cases, the appliance inlets are not touchproof, and the use of two switches (either mechanical or electrical) connected in series ensures that the inlet pins do not become live when the mains is connected.
- One object of the present invention is to provide an electrical appliance for switching on reserve power which is of simple and inexpensive design.
- Another object of the invention is to provide such an electrical appliance, which not only has few movable parts but also is highly reliable in service.
- Yet another object of the invention is to provide such an electrical device, which is touchproof, and easy to install and operate.
- an electrical appliance characterised by an operating cover which is movably mounted in said casing for shifting between a first position in which it covers the inlet and allows the switch to close the first line between the input and the output, and a second position in which it uncovers the inlet and causes the switch to open the first line between the input and the output, thus enabling current from a reserve power unit to flow, through a cable, or the like, and a flexible lead outlet, to the inlet and from there to the output via the second line, while the connection of the second line to the input is open.
- Figs 10 and 11 are schematic front views illustrating an embodiment of the inventive appliance in which the operating cover is connected to the switch.
- Figs 1-3 illustrate a preferred embodiment of an electrical appliance 1 of the invention for switching on reserve power.
- This appliance comprises a housing or casing 2 made of a suitable impact-resistant, electrically insulating material commonly used for enclosing switches or the like.
- the casing contains a switch 3 connected in a first line 4 which is enclosed in the casing 2 and connects an input 5 in the casing of the appliance 1 to the output 6 thereof.
- the switch 3 can thus close and open the electric connection (electric circuit) between the input 5 and the output 6 of the appliance 1.
- the appliance 1, with its input 5 and its output 6, is adapted for installation in an electric mains 7a, 7b with primary power supply.
- the switch 3 is operated by an operating means 8 projecting therefrom (see Fig. 3).
- the means 8 is nonrotatably connected to an operating cover 9.
- the appliance 1 further comprises a reserve power inlet 10 which is also enclosed in the casing 2 at a distance from the switch 3, preferably in a compartment of the casing separate from the switch.
- the inlet 10 comprises a socket adapted to cooperate with the plug of a flexible lead outlet 11 which, via a cable 12 or the like, is connected to a reserve power unit (not shown).
- the inlet 10 is further connected to the first line 4 by a second line 13 also enclosed in the casing 2. As is apparent from Fig. 2, the second line 13 is connected to the first line 4 at a point between the switch 3 and the output 6, for reasons given below.
- the operating cover 9 is movably mounted in the casing 2. In this embodiment, it is pivotable about an axis 14 coinciding with the axis of rotation of the operating means 8 of the switch 3.
- the operating cover is pivotable between two positions. In the first position, shown in Fig. 1, the operating cover 9 conceals the inlet 10, thus preventing anyone from accidentally touching or having access to the inlet socket which at all times is live. In this position, the switch 3 is closed, the input 5 is electrically connected to the output 6 by the first line 4 and the switch, and the primary power supply of the electric mains 7a, 7b occurs through the appliance 1, as illustrated by the arrows in Fig. 1.
- the operating cover 9 is pivoted to the second position shown in Fig. 2.
- the switch 3 is brought to its opening state and the appliance inlet 10 is uncovered, thus enabling connection of the flexible lead outlet 11 to the inlet 10, i.e. connection of the socket and the plug.
- the flexible lead outlet 11 also prevents the operating cover 9 from being pivoted back to the first position, by the operating cover extending beyond the flexible lead outlet on a level therewith, for which reason the switch 3 is mechanically maintained in the opening state, see especially Fig. 3.
- Figs 4 and 5 illustrate an alternative embodiment of the inventive appliance.
- the operating cover 9 mounted in the casing 2 is not pivotable, but slidable in the longitudinal direction of the casing between said two positions.
- the operating cover 9 is not connected to the operating means 8 of the switch 3.
- the operating cover 9 may be slidably fixed to the casing by guide strips (Fig. 6), a nut and groove assembly, or any other optional means.
- the casing 2 is provided with abutment means (not shown) restricting the movement of the operating cover 9 which thus can only move between said two positions and is prevented from being inadvertently removed from the appliance 1.
- the operating cover 9 conceals the inlet 10, and the switch 3, in this embodiment a push-button switch, is in its closing state, connecting the input 5 to the output 6. Since the operating means 8 of the switch is in its most projecting position when the switch is in the closing state, the operating means 8 then extends past the operating cover 9 and mechanically prevents the latter from occupying the second position and uncovering the inlet 10.
- the operating means 8 To move the operating cover 9 to the second position (shown in Fig. 5), the operating means 8 must be depressed, so that the switch 3 is brought to its opening state. Then, the operating cover 9 can be moved to the second position, thus opening the first line 4 and uncovering the inlet 10 for connection to the flexible lead outlet (not shown), as above. Since the operating means 8 is concealed by the operating cover 9, it is impossible to unintentionally turn on the switch 3. If the operating cover 9 is to be pivoted back to the first position, the flexible lead outlet must first be removed from the appliance inlet. After the operating cover has been moved to the first position, the switch 3 can be turned on, thus connecting the input 5 to the output 6, as shown in Fig. 4.
- Figs 6 and 7 illustrate an alternative embodiment of the invention which comprises a toggle switch 3 whose operating means 8 is a toggle which can be moved transversely of the longitudinal direction of the appliance 1.
- the operating cover 9 is slidable between a pair of parallel guide strips 15 in the casing 2.
- the toggle 8 here is in its uppermost position, the operating cover 9 is in the first position in which it covers the inlet 10, and the switch 3 is in its closing state in which the input 5 is connected to the output 6, and the operating cover is locked in this position (see Fig. 7).
- the operating cover 9 has a recess 16.
- the toggle 8 When the operating cover 9 is to be moved to the second position, the toggle 8 must be returned to its lowermost position (shown by broken lines in Fig. 7), so that the switch 3 is brought to its opening state. Owing to its recess 16, the operating cover 9 can then be moved to the second position, thereby opening the first line 4 and uncovering the inlet 10 for connection to the flexible lead outlet (not shown), as above. As previously, the operating cover 9 prevents the switch 3 from being inadvertently turned on. The operating cover is returned to the first position as above.
- Figs 8 and 9 illustrate yet another embodiment of the inventive appliance, which has a rotary switch 3 whose operating means 8 is a disc-shaped knob.
- the knob 8 may occupy a vertical position, shown in Fig. 8, in which the operating cover 9 is in its first, locked position, covering the inlet 10, and the switch 3 is in its closing state, as above.
- the operating cover 9 has a recess 16 and a longitudinal slot 17.
- the knob 8 In order to move the operating cover 9 to the second position, shown in Fig. 9, the knob 8 must be turned in the recess 16 of the operating cover 9 to what is a horizontal position in the Figure, the knob 8 being aligned with the slot 17 and the switch 3 being in the opening state. Owing to its slot 17, the operating cover 9 may then be shifted to the second position in which the first line 4 is open and the inlet 10 is uncovered for connection to the flexible lead outlet (not shown), as above. The slot 17 of the operating cover prevents the switch 3 from being unintentionally turned on, and the operating cover 9 is returned to the first position, as above.
- the operating cover is connected to the operating means of a switch, such as the toggle 8 of a toggle switch 3, as in the embodiment shown in Figs 1-3.
- the toggle 8 unlike the toggle 8 in Figs 6 and 7, can be moved in the longitudinal direction of the appliance 1.
- the toggle 8 may project through a recess 16 in the operating cover 9.
- the switch upon displacement of the operating cover, is moved between two positions in which the switch 3 is in the closing state (Fig. 10) and in the opening state (Fig. 11), respectively, the toggle can be connected to the operating cover in any optional manner.
- the switch is thus directly operated by the operating cover 9 being moved between its two positions. Otherwise, the appliance 1 functions as above.
- a spring means (not shown) is suitably arranged in the casing 2 to bias the operating cover 9 towards the first position so that it strives to cover the appliance inlet 10 as soon as the flexible lead outlet 11 has been removed therefrom.
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Handcart (AREA)
- Pens And Brushes (AREA)
- Stored Programmes (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Unwinding Webs (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Cookers (AREA)
Abstract
Description
- The present invention relates to an electrical appliance for switching on reserve power, said appliance being adapted for installation in an electric mains with primary power supply and comprising a casing having an input and an output which are electrically interconnected by a first line and adapted to be connected to the mains; a switch connected in said first line; and an appliance inlet connected to said first line by a second line.
- More precisely, the invention concerns a mechanically locked inlet, viz. a reserve power inlet, enabling power supply from a reserve power unit to the electric mains of e.g. a building when the primary power supply fails, for instance because a sector fuse has blown, a power transmission line been damaged, or a switching station dropped out.
- Present-day electrical appliances for switching on reserve power relies either on at least two mechanically operated switches connected in series or on at least two electrically operated switches connected in series. In both cases, the appliance inlets are not touchproof, and the use of two switches (either mechanical or electrical) connected in series ensures that the inlet pins do not become live when the mains is connected.
- One object of the present invention is to provide an electrical appliance for switching on reserve power which is of simple and inexpensive design.
- Another object of the invention is to provide such an electrical appliance, which not only has few movable parts but also is highly reliable in service.
- Yet another object of the invention is to provide such an electrical device, which is touchproof, and easy to install and operate.
- According to the invention, these objects are achieved by an electrical appliance characterised by an operating cover which is movably mounted in said casing for shifting between a first position in which it covers the inlet and allows the switch to close the first line between the input and the output, and a second position in which it uncovers the inlet and causes the switch to open the first line between the input and the output, thus enabling current from a reserve power unit to flow, through a cable, or the like, and a flexible lead outlet, to the inlet and from there to the output via the second line, while the connection of the second line to the input is open.
- Further distinctive features of the invention are recited in the subclaims.
- The preferred embodiments of the invention will be described below, reference being had to the accompanying drawings, in which
- Fig. 1 is a schematic front view of the inventive appliance with the operating cover in the first position,
- Fig. 2 is a schematic front view of the inventive device with the operating cover in the second position and with the appliance inlet uncovered to receive a flexible lead outlet,
- Fig. 3 is a section taken along the line A-A in Fig. 2 and showing the flexible lead outlet with the associated cable when connected,
- Fig. 4 is a schematic front view of an alternative embodiment of the inventive appliance, the operating cover being in the first position,
- Fig. 5 is a schematic front view of the appliance in Fig. 4, the operating cover being in the second position and the appliance inlet being uncovered to receive the flexible lead outlet,
- Fig. 6 is a side view of another alternative embodiment of the inventive appliance,
- Fig. 7 is a schematic front view of the appliance in Fig. 6,
- Figs 8 and 9 are schematic front views illustrating yet another alternative embodiment of the inventive appliance, the operating cover being in the first and the second position, respectively, and
- Figs 10 and 11 are schematic front views illustrating an embodiment of the inventive appliance in which the operating cover is connected to the switch.
- In the drawings, like details are identified by like numerals. In Fig. 7, the operating cover is indicated by full lines when in the first position and by broken lines when in the second position.
- Figs 1-3 illustrate a preferred embodiment of an
electrical appliance 1 of the invention for switching on reserve power. This appliance comprises a housing orcasing 2 made of a suitable impact-resistant, electrically insulating material commonly used for enclosing switches or the like. The casing contains aswitch 3 connected in afirst line 4 which is enclosed in thecasing 2 and connects aninput 5 in the casing of theappliance 1 to theoutput 6 thereof. Theswitch 3 can thus close and open the electric connection (electric circuit) between theinput 5 and theoutput 6 of theappliance 1. Theappliance 1, with itsinput 5 and itsoutput 6, is adapted for installation in anelectric mains switch 3 is operated by an operating means 8 projecting therefrom (see Fig. 3). In this embodiment, themeans 8 is nonrotatably connected to anoperating cover 9. - The
appliance 1 further comprises areserve power inlet 10 which is also enclosed in thecasing 2 at a distance from theswitch 3, preferably in a compartment of the casing separate from the switch. Theinlet 10 comprises a socket adapted to cooperate with the plug of aflexible lead outlet 11 which, via acable 12 or the like, is connected to a reserve power unit (not shown). Theinlet 10 is further connected to thefirst line 4 by asecond line 13 also enclosed in thecasing 2. As is apparent from Fig. 2, thesecond line 13 is connected to thefirst line 4 at a point between theswitch 3 and theoutput 6, for reasons given below. - The
operating cover 9 is movably mounted in thecasing 2. In this embodiment, it is pivotable about anaxis 14 coinciding with the axis of rotation of the operating means 8 of theswitch 3. The operating cover is pivotable between two positions. In the first position, shown in Fig. 1, theoperating cover 9 conceals theinlet 10, thus preventing anyone from accidentally touching or having access to the inlet socket which at all times is live. In this position, theswitch 3 is closed, theinput 5 is electrically connected to theoutput 6 by thefirst line 4 and the switch, and the primary power supply of theelectric mains appliance 1, as illustrated by the arrows in Fig. 1. - If the primary power supply should fail or if for some other reason a reserve power unit is to be connected to the user mains or the internal
electric mains 7b, theoperating cover 9 is pivoted to the second position shown in Fig. 2. Thus, theswitch 3 is brought to its opening state and theappliance inlet 10 is uncovered, thus enabling connection of theflexible lead outlet 11 to theinlet 10, i.e. connection of the socket and the plug. Now, current from the reserve power unit can flow through thecable 12, theflexible lead outlet 11, theinlet 10, and thesecond line 13 to thefirst line 4 and theoutput 6, whence it flows to the user outlets along the internalelectric mains 7b whereas not to theprimary power supply 7a of the mains, since theswitch 3 has opened thefirst line 4 between the switch and theinput 5 and, consequently, the connection of thesecond line 13 to theinput 5, as illustrated by the arrows in Fig. 2. - In the second position, the
flexible lead outlet 11 also prevents theoperating cover 9 from being pivoted back to the first position, by the operating cover extending beyond the flexible lead outlet on a level therewith, for which reason theswitch 3 is mechanically maintained in the opening state, see especially Fig. 3. This means that, if the primary power supply should start operating again or if one should wish to utilise theprimary power supply 7a of the mains, the current from the primary power supply is prevented from flowing to the internalelectric mains 7b or to the reserve power unit, which might cause damage. - Figs 4 and 5 illustrate an alternative embodiment of the inventive appliance. In this embodiment, the
operating cover 9 mounted in thecasing 2 is not pivotable, but slidable in the longitudinal direction of the casing between said two positions. Furthermore, theoperating cover 9 is not connected to the operating means 8 of theswitch 3. Theoperating cover 9 may be slidably fixed to the casing by guide strips (Fig. 6), a nut and groove assembly, or any other optional means. Further, thecasing 2 is provided with abutment means (not shown) restricting the movement of theoperating cover 9 which thus can only move between said two positions and is prevented from being inadvertently removed from theappliance 1. - In the first position, shown in Fig. 4, the
operating cover 9 conceals theinlet 10, and theswitch 3, in this embodiment a push-button switch, is in its closing state, connecting theinput 5 to theoutput 6. Since the operating means 8 of the switch is in its most projecting position when the switch is in the closing state, the operating means 8 then extends past theoperating cover 9 and mechanically prevents the latter from occupying the second position and uncovering theinlet 10. - To move the
operating cover 9 to the second position (shown in Fig. 5), the operating means 8 must be depressed, so that theswitch 3 is brought to its opening state. Then, theoperating cover 9 can be moved to the second position, thus opening thefirst line 4 and uncovering theinlet 10 for connection to the flexible lead outlet (not shown), as above. Since theoperating means 8 is concealed by theoperating cover 9, it is impossible to unintentionally turn on theswitch 3. If theoperating cover 9 is to be pivoted back to the first position, the flexible lead outlet must first be removed from the appliance inlet. After the operating cover has been moved to the first position, theswitch 3 can be turned on, thus connecting theinput 5 to theoutput 6, as shown in Fig. 4. - Figs 6 and 7 illustrate an alternative embodiment of the invention which comprises a
toggle switch 3 whose operating means 8 is a toggle which can be moved transversely of the longitudinal direction of theappliance 1. In Fig. 6, being a side view of theappliance 1, theoperating cover 9 is slidable between a pair ofparallel guide strips 15 in thecasing 2. Thetoggle 8 here is in its uppermost position, theoperating cover 9 is in the first position in which it covers theinlet 10, and theswitch 3 is in its closing state in which theinput 5 is connected to theoutput 6, and the operating cover is locked in this position (see Fig. 7). In this embodiment, theoperating cover 9 has arecess 16. - When the
operating cover 9 is to be moved to the second position, thetoggle 8 must be returned to its lowermost position (shown by broken lines in Fig. 7), so that theswitch 3 is brought to its opening state. Owing to itsrecess 16, theoperating cover 9 can then be moved to the second position, thereby opening thefirst line 4 and uncovering theinlet 10 for connection to the flexible lead outlet (not shown), as above. As previously, theoperating cover 9 prevents theswitch 3 from being inadvertently turned on. The operating cover is returned to the first position as above. - Figs 8 and 9 illustrate yet another embodiment of the inventive appliance, which has a
rotary switch 3 whose operating means 8 is a disc-shaped knob. Theknob 8 may occupy a vertical position, shown in Fig. 8, in which theoperating cover 9 is in its first, locked position, covering theinlet 10, and theswitch 3 is in its closing state, as above. In this embodiment, theoperating cover 9 has arecess 16 and alongitudinal slot 17. - In order to move the
operating cover 9 to the second position, shown in Fig. 9, theknob 8 must be turned in therecess 16 of theoperating cover 9 to what is a horizontal position in the Figure, theknob 8 being aligned with theslot 17 and theswitch 3 being in the opening state. Owing to itsslot 17, theoperating cover 9 may then be shifted to the second position in which thefirst line 4 is open and theinlet 10 is uncovered for connection to the flexible lead outlet (not shown), as above. Theslot 17 of the operating cover prevents theswitch 3 from being unintentionally turned on, and theoperating cover 9 is returned to the first position, as above. - In the embodiment of Figs 10 and 11, the operating cover is connected to the operating means of a switch, such as the
toggle 8 of atoggle switch 3, as in the embodiment shown in Figs 1-3. In this embodiment, thetoggle 8, unlike thetoggle 8 in Figs 6 and 7, can be moved in the longitudinal direction of theappliance 1. For instance, thetoggle 8 may project through arecess 16 in theoperating cover 9. On condition that the toggle, upon displacement of the operating cover, is moved between two positions in which theswitch 3 is in the closing state (Fig. 10) and in the opening state (Fig. 11), respectively, the toggle can be connected to the operating cover in any optional manner. In this embodiment, the switch is thus directly operated by theoperating cover 9 being moved between its two positions. Otherwise, theappliance 1 functions as above. - In some applications of the invention, a spring means (not shown) is suitably arranged in the
casing 2 to bias theoperating cover 9 towards the first position so that it strives to cover theappliance inlet 10 as soon as the flexiblelead outlet 11 has been removed therefrom.
Claims (9)
- An electrical appliance (1) for switching on reserve power, said appliance being adapted for installation in an electric mains (7a, 7b) with primary power supply and comprising a casing (2) having an input (5) and an output (6) which are electrically interconnected by a first line (4) and adapted to be connected to the mains; a switch (3) connected in said first line; and an appliance inlet (10) connected to said first line by a second line (13), characterised by an operating cover (9) which is movably mounted in said casing (2) for shifting between a first position in which it covers the inlet (10) and allows the switch (3) to close the first line (4) between the input (5) and the output (6), and a second position in which it uncovers the inlet (10) and causes the switch (3) to open the first line (4) between the input (5) and the output (6), thus enabling current from a reserve power unit to flow, through a cable (12), or the like, and a flexible lead outlet (11), to the inlet (10) and from there to the output (6) via the second line (13), while the connection of the second line (13) to the input (5) is open.
- Appliance as claimed in claim 1, characterised in that the operating cover (9) is pivotably mounted and connected to the operating means (8) of the switch (3), such that said cover, when in said first position, brings the switch (3) to closing state and, when in said second position, brings the switch (3) to opening state.
- Appliance as claimed in claim 1, characterised in that the operating cover (9) is slidable in the longitudinal direction of the casing (2), such that when in said second position, it uncovers the inlet (10), but locks the switch (3) in the opening state.
- Appliance as claimed in claim 3, characterised in that the operating cover (9) is displaceable from said first position, allowing operation of the switch (3), to said second position, only when the switch (3) is in the opening state.
- Appliance as claimed in claim 4, characterised in that the operating cover (9) when in said second position completely covers the operating means (8) of the switch (3).
- Appliance as claimed in claim 4, characterised in that the operating cover (9) when in said second position blocks the switch-on position of the operating means (8).
- Appliance as claimed in claim 4, characterised in that the operating cover (9) has an elongate slot (17) which, when the operating cover is in said second position, nonrotatably receives the operating means (8) of the switch (3).
- Appliance as claimed in claim 3, characterised in that the operating cover (9) is connected to the operating means (8) of the switch (3), such that the switch (3), upon displacement of the operating cover (9) from said first to said second position, is brought from closing state to opening state, and vice versa.
- Appliance as claimed in any one of the preceding claims, characterised in that the operating cover (9) is biased towards said first position.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8903658A SE500980C2 (en) | 1989-11-01 | 1989-11-01 | Electrical appliance for connecting reserve power |
SE8903658 | 1989-11-01 | ||
PCT/SE1990/000687 WO1991006990A1 (en) | 1989-11-01 | 1990-10-24 | Electrical device for switching on reserve power |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0500647A1 EP0500647A1 (en) | 1992-09-02 |
EP0500647B1 true EP0500647B1 (en) | 1995-01-18 |
Family
ID=20377358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916536A Expired - Lifetime EP0500647B1 (en) | 1989-11-01 | 1990-10-24 | Electrical device for switching on reserve power |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0500647B1 (en) |
AT (1) | ATE117465T1 (en) |
DE (1) | DE69016215T2 (en) |
FI (1) | FI921954A0 (en) |
NO (1) | NO305625B1 (en) |
SE (1) | SE500980C2 (en) |
WO (1) | WO1991006990A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5976429A (en) | 1993-02-10 | 1999-11-02 | The Morgan Crucible Company, Plc | Process for producing dense, self-sintered silicon carbide/carbon-graphite composites |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2959620B1 (en) * | 2010-04-30 | 2015-08-07 | Maurice Feydel | SWITCHING AND SERVICING DEVICE BETWEEN A BIPOLAR INVERTER SWITCH AND A MALE TYPE BIPOLAR OUTLET. |
FR2978882B1 (en) * | 2011-08-01 | 2013-08-23 | Maurice Feydel | ELECTRIC DEVICE FOR RECOVERING POWER SUPPLY IN RESCUE OF A MAIN DISTRIBUTION POWER SUPPLY FAILING ON A DOMESTIC TYPE NETWORK |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE830680C (en) * | 1948-10-02 | 1952-02-07 | Casp Arn Winkhaus Fa | Plug coupling with built-in switch |
DE2025602A1 (en) * | 1970-05-26 | 1971-12-16 | Daut & Ritz Kg | Socket with switch |
-
1989
- 1989-11-01 SE SE8903658A patent/SE500980C2/en unknown
-
1990
- 1990-10-24 AT AT90916536T patent/ATE117465T1/en not_active IP Right Cessation
- 1990-10-24 WO PCT/SE1990/000687 patent/WO1991006990A1/en active IP Right Grant
- 1990-10-24 DE DE69016215T patent/DE69016215T2/en not_active Expired - Fee Related
- 1990-10-24 EP EP90916536A patent/EP0500647B1/en not_active Expired - Lifetime
-
1992
- 1992-04-28 NO NO921630A patent/NO305625B1/en not_active IP Right Cessation
- 1992-04-30 FI FI921954A patent/FI921954A0/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5976429A (en) | 1993-02-10 | 1999-11-02 | The Morgan Crucible Company, Plc | Process for producing dense, self-sintered silicon carbide/carbon-graphite composites |
Also Published As
Publication number | Publication date |
---|---|
EP0500647A1 (en) | 1992-09-02 |
DE69016215T2 (en) | 1995-05-18 |
NO305625B1 (en) | 1999-06-28 |
FI921954A (en) | 1992-04-30 |
WO1991006990A1 (en) | 1991-05-16 |
SE500980C2 (en) | 1994-10-10 |
NO921630L (en) | 1992-05-04 |
NO921630D0 (en) | 1992-04-28 |
ATE117465T1 (en) | 1995-02-15 |
FI921954A0 (en) | 1992-04-30 |
SE8903658L (en) | 1991-05-02 |
DE69016215D1 (en) | 1995-03-02 |
SE8903658D0 (en) | 1989-11-01 |
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