CA1253552A - Closing hesitation prevention for manually operated miniature circuit breaker - Google Patents
Closing hesitation prevention for manually operated miniature circuit breakerInfo
- Publication number
- CA1253552A CA1253552A CA000475312A CA475312A CA1253552A CA 1253552 A CA1253552 A CA 1253552A CA 000475312 A CA000475312 A CA 000475312A CA 475312 A CA475312 A CA 475312A CA 1253552 A CA1253552 A CA 1253552A
- Authority
- CA
- Canada
- Prior art keywords
- handle
- circuit breaker
- pivoting
- strip
- protuberance
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
-
- 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
- H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
Landscapes
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
- Scissors And Nippers (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
ABSTRACT
RAPID CLOSING MECHANISM OF A MINIATURE CIRCUIT BREAKER
Rapid manual closing of a miniature circuit breaker with a pivoting operating handle (10) is brought about by the presence of a flexible strip (56) engaged by a protruber-ance (54) on the handle (10) in the course of the pivoting movement of the latter. The deformation of the flexible strip (56) imposes an increased effort to operate the han-dle and, once the deformed flexible strip (56) has been overrun, this increased effort is available for a rapid movement with contact spring (42) loading to closed pos-ition of the contacts (38, 40). A manual opening operation by pivoting the handle (10) in the opposite direction takes place normally, the flexible strip (56) withdrawing by sim-ple pivoting from the trajectory of the protruberance (54).
Refer to figure 1.
RAPID CLOSING MECHANISM OF A MINIATURE CIRCUIT BREAKER
Rapid manual closing of a miniature circuit breaker with a pivoting operating handle (10) is brought about by the presence of a flexible strip (56) engaged by a protruber-ance (54) on the handle (10) in the course of the pivoting movement of the latter. The deformation of the flexible strip (56) imposes an increased effort to operate the han-dle and, once the deformed flexible strip (56) has been overrun, this increased effort is available for a rapid movement with contact spring (42) loading to closed pos-ition of the contacts (38, 40). A manual opening operation by pivoting the handle (10) in the opposite direction takes place normally, the flexible strip (56) withdrawing by sim-ple pivoting from the trajectory of the protruberance (54).
Refer to figure 1.
Description
i355~
The invention relates to a rapid manual cloqing mechanism of a current breaking device, notably a switch or circuit - 5 Breaker, with a handle connected by a kinematic chain to a contact armO
ckground of the invention Miniature circuit breakers, in particular those for modular electrical distribution installations, comprise a manual spening and closing operating handle. ~he clo3ing oper-ation cause~ a ~pring to be loaded ensuring rapid opening of the contacts in the event oP a fault and assisting the handle in the opening operation. When a slow clo~ing oper-ation takes place or the handle i~ held in an intermediatepo~ition, -the contact pressure may be insufficient for the current to flow properly and overheating of the contacts may cause welding or erosion. To avoid this drawback, it has already been proposed to insert in the transmission mechanism between the handle and the contact arm an energy storage spring which comes into action at the end of c109-ing travel to bring about rapid closing of the contacts.
Prior art devices are complicated and interrupt the direct linkage between handle and contact arm by systems of artic-ulated leverq.
The object of the present invention i9 to provide an oper-a-ting mechanism o~ a miniature circuit breaker which is e2-~- tremely simpLe and able to bring about rapid clo~ing of the ; 3o contactsO
Surnmar~ of the invention The clo3ing mechanism according to the present invention comprises an abutmen-t which can be overrun located at a prede-termined point of the trajectory o~ movement of one of the switchgear closing mechanism elements, in ~uch a way as -to irnpede said movement and constitute a han~lp point requiring an increased force on the handle to overrun said point which corresponds to a position of the contact arm close to the position where the contacts come into contact to bring about closing by the action of said increased ~orce as soon as said hangup point is overrun.
The presence of a hangup point on the closing travel of the handle compels the operator to exert an increased act-uating force on the handle in order to overrun this hangup point~ ~his actuating force becomes fully available as soon as the retaining abutment i~ overrun Nhen the han~lp point is passed and is sufficient to cause rapid movement of the contacts to the closing position. The hangup point corres-ponds to a position of the con-tacts close to the closing position and it is practically impossible for an operator to move the handle beyond -the hangup point and to hold it in an intermediate position between this hangu~ poin-t and the closing position. ~he abutment which can be overrun is advantageously formed by a flexible part which is deformed by the ac-tion of the handle and is automatically cleared after a predetermined deformationO Unlike prior art energy storage me~hànisms, the loaded fle~ible par-t does not res-tore the energy to the mechanism to bring about rapid clos-ing~ the latter being brought about by operator action on the handle. It is clear that the abutment or the flexible part can be added to standard mechanisms without modifying the latter to transform a circuit breaker and ensure rapid closing of the contacts.
The abutment which can be overrun is inactive in the pivot-ing direction of the handle corresponding to opening of the contacts in order not to impede this pivoting of the handle~
either when actuated manually, or due to -the effect of a return spring on circuit breaker tripping. ~he flexible part is advantageously a fle~ible strip which can pivot freely in the direction corresponding to opening of the contacts~ whereas it co~es into abutment against a protrus-1~ ~35~
ion of the casing when the handle pi~ots in the oppo~itecontact closing directionO The flexible strip is held pressed agai.nst the pro-trusion o~ the casing by mean~ of a return spring.
Brief description of the drawin~
Other advantages and characteri~tics will become more clearly apparent ~rom the following description o~ a specific embodiment o~ the invention, by way of example only, and represented by the accompanying dra~ngs, in which :
- ~igure l is schematic cross-sectional view acros~ the middle of a mechanism according to the invention~ repres-ented in the contact open position ;
- figure 2 is a similar view to that of ~igure 1, showing the mechanism in the contact clo~ed posi-tion ;
ZO - figures 3 -to 5 are partial views of figure 11 showing the handle and clearable abutment respectively during clos-ing movement before and after the hangup point is overrun, and during opening movement of the contacts ;
- figure 6 illustrates the curve o~ the variation in the torque required to pivo-t the handle during a clo~ing oper-ation.
Descript on of the pre~erred embodiment Figures l and 2 are views of a mechanism described in det-ail in Can. Pat. Appln. No. 436,903 of Sept. 16,1Y~3, which wil`l be advantageousLy referred to for further details. It is sufficient to recall that the pivoting handle lO is pivotably moun-ted on a stationary shaft 12, the body 14 o~ the han~lle having a pin 16 operating a toggle joint 20 made up o~ ar-ticulated rodq 18, 22. ~he rod 22 belongs to a rocker arm 24 pivot-ably mounted on a stationary shaft 26 and having an exten-~355;~
sion 28 bearing a pivot 30 on which a contact arm 32 ismounted. ~he movable contact 38 is mounted on one of -the ends 34 of the arm 32 and cooperates with a fixed contact 40, whereas the opposite end cooperates with a locking ~butment 36 of a trip lever 44 pivotably mounted on a pivot 46. A contact pressure spring 42 urges the movable contact 38 into the closed po~ition. A catch 48, operated by a magnetic or thermal tripping device 50 (not shown), cooperates with the lever 44 to bring abou-t tripping of the circuit breaker in the event of a fault. A spring 52 urges the contact arm into the contact opening position.
A mechanism of this kind, described in detail in -the above-mentioned patent, is well-lcnown to specialis-ts, and it i~
pointless describing it in greater detail.
According to the present invention, the body 14 of the handle lO has a protruberance or hump 54 which follows a circular trajectory when handle lO pivots and comes into 20 contact during its movement with the end oE a strip 56 articulated on a fiæed pivot 58 secured to the casing 60.
A coil ~pring 62 urges the strip 56 into abutment against a protrusion 64 of casing 60 which limits pivoting of -the strip 56 in the -trigonometric direction in figure 1. Pivot-25 ing in the oppo~ite direction takes place Ereely by over-coming the ~orce of the return spring 62. ~he strip 56 is ~lexible to enable it to be deformed by the action o~ the protruberance 54, a deforma-tion c~using on the one hand a storage o~ energy, and on the other hand, the withdrawal 3o of the end of the fle~ible strip 56 from the trajectory OI
movement of the protruberance 54 which~ once it has over run the strip 56, moves freely.
Operation of the device according to -the invention is des-35 cribed below, referring more particularLy to figures 3 to 6:
~ ~3 5S'~
In the circuit breaker open position, represented in figure 1, the flexible strip 56 is held in abutment against the protrusion 64 by the spring 62, the protruberance 54 being a~ay from the strip 56. In the course o~ a closing oper-ation of the switchgear by clockl,vise pivoting o~ the han-dle 10, -the protruberance 54 comes up against the end of the flexible strip 56 and causes bending of the latter held in abutment against the protrusion 64 (fig. 3)~ Defor-mation of the flexible strip 56 requires ~n increased torque to operate handle 10, represented in figure 6 in -terms of the pivoting angle cC of the handle 10. ~he position Cl corresponds to the protruberance 54 engaging against the strip 56, the position C2 corresponding to the strip 56 being overrun by the pro-truberance 54 ~fig.4). Overrunning the strip 56 corresponding -to -the position ~c2 takes place just before the con-tac-ts ~8, 40 come into contact corres-ponding to the position oC3. ~rom the moment this coming into contact occurs, an additional effort is necessary to load the contact spring 42, which is expressed by an in-crease in the torque C required to operate the handle 10In the course of the continuing pivo-ting movement of -the handle 10, the spring 42 is loaded until the dead point (P.M. in figure 6) of the toggle join-t constituted by the rods 18, 22 is reached. 3eyond this dead point, the handle is urged by the mechanism to the stable closed posi-tion.
As soon as the flexible s-trip ~6 has been passed, the lat-ter reverts to its ini-tial position without the stored energy being transmitted to the mechanism. It is clearly apparent from figure 6 that the presence of the flexible strip 56 imposes an increased effort to operate the handle 10 t'nroughout the deformation phase of the flexible strip 56, this increased effort enabling, once the fle~ible strip 56 has been passed, -the contacts to be closed rapidly absorbing without difficulty the compression ~orce of -the contact spring 42.
In the course of a mamlal circuit breaker opening o~eration 3 55 ~
the protruberance 54 comes up against the end of the flex-ible strip 56 making it pivot clock-,~ise against the return spring 62 (fig.5). The opposing ~orce is virtually neglig~
ible and it is possible to admit that the s-trip 56 does not exert any in~luence on the circuit breaker opening operation.
.
It is clear that the invention is in no way limited to the particular embodiment described, the ~le~ible strip 56 being able to cooperate with another element of the mech-anism, notably of the contact arm 32 or of the toggle sys-tem, that the opposing force can be generated by any other flexible or stored energy system, and that movement o:f the handle can talce place in a straigh-t line,
The invention relates to a rapid manual cloqing mechanism of a current breaking device, notably a switch or circuit - 5 Breaker, with a handle connected by a kinematic chain to a contact armO
ckground of the invention Miniature circuit breakers, in particular those for modular electrical distribution installations, comprise a manual spening and closing operating handle. ~he clo3ing oper-ation cause~ a ~pring to be loaded ensuring rapid opening of the contacts in the event oP a fault and assisting the handle in the opening operation. When a slow clo~ing oper-ation takes place or the handle i~ held in an intermediatepo~ition, -the contact pressure may be insufficient for the current to flow properly and overheating of the contacts may cause welding or erosion. To avoid this drawback, it has already been proposed to insert in the transmission mechanism between the handle and the contact arm an energy storage spring which comes into action at the end of c109-ing travel to bring about rapid closing of the contacts.
Prior art devices are complicated and interrupt the direct linkage between handle and contact arm by systems of artic-ulated leverq.
The object of the present invention i9 to provide an oper-a-ting mechanism o~ a miniature circuit breaker which is e2-~- tremely simpLe and able to bring about rapid clo~ing of the ; 3o contactsO
Surnmar~ of the invention The clo3ing mechanism according to the present invention comprises an abutmen-t which can be overrun located at a prede-termined point of the trajectory o~ movement of one of the switchgear closing mechanism elements, in ~uch a way as -to irnpede said movement and constitute a han~lp point requiring an increased force on the handle to overrun said point which corresponds to a position of the contact arm close to the position where the contacts come into contact to bring about closing by the action of said increased ~orce as soon as said hangup point is overrun.
The presence of a hangup point on the closing travel of the handle compels the operator to exert an increased act-uating force on the handle in order to overrun this hangup point~ ~his actuating force becomes fully available as soon as the retaining abutment i~ overrun Nhen the han~lp point is passed and is sufficient to cause rapid movement of the contacts to the closing position. The hangup point corres-ponds to a position of the con-tacts close to the closing position and it is practically impossible for an operator to move the handle beyond -the hangup point and to hold it in an intermediate position between this hangu~ poin-t and the closing position. ~he abutment which can be overrun is advantageously formed by a flexible part which is deformed by the ac-tion of the handle and is automatically cleared after a predetermined deformationO Unlike prior art energy storage me~hànisms, the loaded fle~ible par-t does not res-tore the energy to the mechanism to bring about rapid clos-ing~ the latter being brought about by operator action on the handle. It is clear that the abutment or the flexible part can be added to standard mechanisms without modifying the latter to transform a circuit breaker and ensure rapid closing of the contacts.
The abutment which can be overrun is inactive in the pivot-ing direction of the handle corresponding to opening of the contacts in order not to impede this pivoting of the handle~
either when actuated manually, or due to -the effect of a return spring on circuit breaker tripping. ~he flexible part is advantageously a fle~ible strip which can pivot freely in the direction corresponding to opening of the contacts~ whereas it co~es into abutment against a protrus-1~ ~35~
ion of the casing when the handle pi~ots in the oppo~itecontact closing directionO The flexible strip is held pressed agai.nst the pro-trusion o~ the casing by mean~ of a return spring.
Brief description of the drawin~
Other advantages and characteri~tics will become more clearly apparent ~rom the following description o~ a specific embodiment o~ the invention, by way of example only, and represented by the accompanying dra~ngs, in which :
- ~igure l is schematic cross-sectional view acros~ the middle of a mechanism according to the invention~ repres-ented in the contact open position ;
- figure 2 is a similar view to that of ~igure 1, showing the mechanism in the contact clo~ed posi-tion ;
ZO - figures 3 -to 5 are partial views of figure 11 showing the handle and clearable abutment respectively during clos-ing movement before and after the hangup point is overrun, and during opening movement of the contacts ;
- figure 6 illustrates the curve o~ the variation in the torque required to pivo-t the handle during a clo~ing oper-ation.
Descript on of the pre~erred embodiment Figures l and 2 are views of a mechanism described in det-ail in Can. Pat. Appln. No. 436,903 of Sept. 16,1Y~3, which wil`l be advantageousLy referred to for further details. It is sufficient to recall that the pivoting handle lO is pivotably moun-ted on a stationary shaft 12, the body 14 o~ the han~lle having a pin 16 operating a toggle joint 20 made up o~ ar-ticulated rodq 18, 22. ~he rod 22 belongs to a rocker arm 24 pivot-ably mounted on a stationary shaft 26 and having an exten-~355;~
sion 28 bearing a pivot 30 on which a contact arm 32 ismounted. ~he movable contact 38 is mounted on one of -the ends 34 of the arm 32 and cooperates with a fixed contact 40, whereas the opposite end cooperates with a locking ~butment 36 of a trip lever 44 pivotably mounted on a pivot 46. A contact pressure spring 42 urges the movable contact 38 into the closed po~ition. A catch 48, operated by a magnetic or thermal tripping device 50 (not shown), cooperates with the lever 44 to bring abou-t tripping of the circuit breaker in the event of a fault. A spring 52 urges the contact arm into the contact opening position.
A mechanism of this kind, described in detail in -the above-mentioned patent, is well-lcnown to specialis-ts, and it i~
pointless describing it in greater detail.
According to the present invention, the body 14 of the handle lO has a protruberance or hump 54 which follows a circular trajectory when handle lO pivots and comes into 20 contact during its movement with the end oE a strip 56 articulated on a fiæed pivot 58 secured to the casing 60.
A coil ~pring 62 urges the strip 56 into abutment against a protrusion 64 of casing 60 which limits pivoting of -the strip 56 in the -trigonometric direction in figure 1. Pivot-25 ing in the oppo~ite direction takes place Ereely by over-coming the ~orce of the return spring 62. ~he strip 56 is ~lexible to enable it to be deformed by the action o~ the protruberance 54, a deforma-tion c~using on the one hand a storage o~ energy, and on the other hand, the withdrawal 3o of the end of the fle~ible strip 56 from the trajectory OI
movement of the protruberance 54 which~ once it has over run the strip 56, moves freely.
Operation of the device according to -the invention is des-35 cribed below, referring more particularLy to figures 3 to 6:
~ ~3 5S'~
In the circuit breaker open position, represented in figure 1, the flexible strip 56 is held in abutment against the protrusion 64 by the spring 62, the protruberance 54 being a~ay from the strip 56. In the course o~ a closing oper-ation of the switchgear by clockl,vise pivoting o~ the han-dle 10, -the protruberance 54 comes up against the end of the flexible strip 56 and causes bending of the latter held in abutment against the protrusion 64 (fig. 3)~ Defor-mation of the flexible strip 56 requires ~n increased torque to operate handle 10, represented in figure 6 in -terms of the pivoting angle cC of the handle 10. ~he position Cl corresponds to the protruberance 54 engaging against the strip 56, the position C2 corresponding to the strip 56 being overrun by the pro-truberance 54 ~fig.4). Overrunning the strip 56 corresponding -to -the position ~c2 takes place just before the con-tac-ts ~8, 40 come into contact corres-ponding to the position oC3. ~rom the moment this coming into contact occurs, an additional effort is necessary to load the contact spring 42, which is expressed by an in-crease in the torque C required to operate the handle 10In the course of the continuing pivo-ting movement of -the handle 10, the spring 42 is loaded until the dead point (P.M. in figure 6) of the toggle join-t constituted by the rods 18, 22 is reached. 3eyond this dead point, the handle is urged by the mechanism to the stable closed posi-tion.
As soon as the flexible s-trip ~6 has been passed, the lat-ter reverts to its ini-tial position without the stored energy being transmitted to the mechanism. It is clearly apparent from figure 6 that the presence of the flexible strip 56 imposes an increased effort to operate the handle 10 t'nroughout the deformation phase of the flexible strip 56, this increased effort enabling, once the fle~ible strip 56 has been passed, -the contacts to be closed rapidly absorbing without difficulty the compression ~orce of -the contact spring 42.
In the course of a mamlal circuit breaker opening o~eration 3 55 ~
the protruberance 54 comes up against the end of the flex-ible strip 56 making it pivot clock-,~ise against the return spring 62 (fig.5). The opposing ~orce is virtually neglig~
ible and it is possible to admit that the s-trip 56 does not exert any in~luence on the circuit breaker opening operation.
.
It is clear that the invention is in no way limited to the particular embodiment described, the ~le~ible strip 56 being able to cooperate with another element of the mech-anism, notably of the contact arm 32 or of the toggle sys-tem, that the opposing force can be generated by any other flexible or stored energy system, and that movement o:f the handle can talce place in a straigh-t line,
Claims (5)
1. An electric circuit breaker comprising an insulating .
casing and a circuit breaker mechanism supported in said insulating casing, said circuit breaker mechanism comprising :
a handle pivotally mounted in the casing, - a stationary contact, - a contact movable into and out of engagement with said stationary contact, - operating spring means acting on said movable contact, - connecting means for connecting the handle to the movable contact, - an overrunnable abutment for engaging said handle or said connecting means to impede the movement in the engagement direction of said contacts and to constitute a hangup point requiring an increased force on the handle to overrun said abutment, said hangup point corresponding to a position of said movable contact close to the engagement position of said contacts for bringing about rapid engagement by the action of said increased force as soon as said hangup point has been passed.
casing and a circuit breaker mechanism supported in said insulating casing, said circuit breaker mechanism comprising :
a handle pivotally mounted in the casing, - a stationary contact, - a contact movable into and out of engagement with said stationary contact, - operating spring means acting on said movable contact, - connecting means for connecting the handle to the movable contact, - an overrunnable abutment for engaging said handle or said connecting means to impede the movement in the engagement direction of said contacts and to constitute a hangup point requiring an increased force on the handle to overrun said abutment, said hangup point corresponding to a position of said movable contact close to the engagement position of said contacts for bringing about rapid engagement by the action of said increased force as soon as said hangup point has been passed.
2. A circuit breaker according to claim 1, wherein said abut-ment comprises a flexible part providing an opposing force to movement in the closing direction until said hangup point is passed, said flexible part being inactive after said point has been passed and when the handle is moved in the opening direction.
3. A circuit breaker according to claim 2, wherein said handle has a protuberance coming into abutment against the flexible part when the handle pivots in the closing direction, said flexible part being designed to be deformed in the course of continuing pivoting movement of the handle exerting an oppos-ing force on the handle and withdrawing suddenly from the trajectory of the protuberance to enable the handle to pivot freely in the closing direction.
4. A circuit breaker according to claim 3, wherein said flexible part is a flexible strip having one end cooperating with said protuberance and another end mounted for free one-way pivoting to allow said protuberance a free passage in the opening direction by pivoting of said strip.
5. A circuit breaker according to claim 4, wherein the flexible strip is urged against a protrusion, said strip coming into abutment against the protrusion and being de-formed during the engagement phase by said protuberance in the closing direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8403417 | 1984-03-02 | ||
| FR8403417A FR2560713B1 (en) | 1984-03-02 | 1984-03-02 | MECHANISM FOR QUICK CLOSING OF A MINIATURE CIRCUIT BREAKER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1253552A true CA1253552A (en) | 1989-05-02 |
Family
ID=9301725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000475312A Expired CA1253552A (en) | 1984-03-02 | 1985-02-27 | Closing hesitation prevention for manually operated miniature circuit breaker |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0156692B1 (en) |
| JP (1) | JPS617532A (en) |
| AT (1) | ATE42865T1 (en) |
| AU (1) | AU577833B2 (en) |
| CA (1) | CA1253552A (en) |
| DE (1) | DE3570010D1 (en) |
| ES (1) | ES8606731A1 (en) |
| FR (1) | FR2560713B1 (en) |
| ZA (1) | ZA851522B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4739291A (en) * | 1986-12-08 | 1988-04-19 | Lee Wen Fong | Magnetic vacuum circuit breaker |
| DE4339425B4 (en) * | 1993-11-18 | 2005-11-10 | Heinrich Kopp Ag | Switch lock for a residual current circuit breaker |
| JP4186407B2 (en) * | 2000-10-10 | 2008-11-26 | 富士電機機器制御株式会社 | Handle operating mechanism of circuit breaker |
| FR2827076B1 (en) * | 2001-07-06 | 2004-03-12 | Schneider Electric Ind Sa | CIRCUIT BREAKER AND ITS CONTROL MECHANISM |
| CN207425751U (en) * | 2017-06-08 | 2018-05-29 | 李文杰 | A kind of high-breaking miniature breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1388664A (en) * | 1963-06-27 | 1965-02-12 | Comp Generale Electricite | Independent closing device for electrical devices |
| GB1087135A (en) * | 1963-07-24 | 1967-10-11 | Plessey Uk Ltd | Improvements in or relating to electric snap-action switch devices |
| DE2534827C3 (en) * | 1975-08-05 | 1978-04-20 | Ellenberger & Poensgen Gmbh, 8503 Altdorf | Double-armed rocker arm especially for a switch lock |
| FR2344950A1 (en) * | 1976-03-15 | 1977-10-14 | Merlin Gerin | CIRCUIT BREAKER CONTROL MECHANISM |
-
1984
- 1984-03-02 FR FR8403417A patent/FR2560713B1/en not_active Expired
-
1985
- 1985-02-26 ES ES540721A patent/ES8606731A1/en not_active Expired
- 1985-02-26 EP EP85400357A patent/EP0156692B1/en not_active Expired
- 1985-02-26 AT AT85400357T patent/ATE42865T1/en not_active IP Right Cessation
- 1985-02-26 DE DE8585400357T patent/DE3570010D1/en not_active Expired
- 1985-02-27 CA CA000475312A patent/CA1253552A/en not_active Expired
- 1985-02-28 ZA ZA851522A patent/ZA851522B/en unknown
- 1985-03-01 AU AU39432/85A patent/AU577833B2/en not_active Ceased
- 1985-03-01 JP JP60038986A patent/JPS617532A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0156692B1 (en) | 1989-05-03 |
| ZA851522B (en) | 1985-10-30 |
| AU3943285A (en) | 1985-09-05 |
| FR2560713A1 (en) | 1985-09-06 |
| EP0156692A1 (en) | 1985-10-02 |
| ES540721A0 (en) | 1986-04-16 |
| ES8606731A1 (en) | 1986-04-16 |
| JPS617532A (en) | 1986-01-14 |
| ATE42865T1 (en) | 1989-05-15 |
| DE3570010D1 (en) | 1989-06-08 |
| AU577833B2 (en) | 1988-10-06 |
| FR2560713B1 (en) | 1988-04-29 |
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