CA1312912C - Apparatus for protecting electrical lines in a distributor of a telecommunication installation - Google Patents
Apparatus for protecting electrical lines in a distributor of a telecommunication installationInfo
- Publication number
- CA1312912C CA1312912C CA000545069A CA545069A CA1312912C CA 1312912 C CA1312912 C CA 1312912C CA 000545069 A CA000545069 A CA 000545069A CA 545069 A CA545069 A CA 545069A CA 1312912 C CA1312912 C CA 1312912C
- Authority
- CA
- Canada
- Prior art keywords
- fuses
- contact
- spring
- circuit board
- arrester
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/14—Distribution frames
- H04Q1/146—Distribution frames with line protection means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/44—Structural association with a spark-gap arrester
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistor by means of a mounting structure
Abstract
ABSTRACT OF THE DISCLOSURE
Apparatus for protecting electrical lines in a distributor of a telecommunication installation and connectable to a laminate module of the distributor is equipped with arresters as parallel elements and fuses as series elements. A pole of each fuse which is adjacent to an arrester is electrically connected to a non-grounded pole of the arrester. The arresters are provided with melt-pieces which melt when overheated. Spring fingers of a multiple grounding sheet lie against the other poles of the arresters. The spring fingers project beyond the arresters and above the free ends of contact parts for each fuse. Upon melting of the melt-piece, a corresponding spring finger is connected to a respective fuse contact part.
Apparatus for protecting electrical lines in a distributor of a telecommunication installation and connectable to a laminate module of the distributor is equipped with arresters as parallel elements and fuses as series elements. A pole of each fuse which is adjacent to an arrester is electrically connected to a non-grounded pole of the arrester. The arresters are provided with melt-pieces which melt when overheated. Spring fingers of a multiple grounding sheet lie against the other poles of the arresters. The spring fingers project beyond the arresters and above the free ends of contact parts for each fuse. Upon melting of the melt-piece, a corresponding spring finger is connected to a respective fuse contact part.
Description
` vP~ 86 P 1533 US
BACKGROUND OF THE INVENTION
1. Field of the Invention The invention relates to apparatus for protecting electrical lines in a distributor of a telecommunication facility and in particular a telephone installation, with the apparatus connectable to a laminate module of the distributor which is equipped with in-line surge arresters as parallel elements to ground and fuses as series elements.
, 2. Description of the Prior Art Apparatus of this nature is known through German Patent 32 12 013. The poles of the fuses and the arresters are held by contact studs, which are fastened to a ~arrier part of the apparatus. The contact studs end in contact surfaces t which are arranged along a longitudinal edge of the apparatus and contacted by plugs of contact springs of the laminate module. The carrier part is formed as an injection moulded part into which the contact studs are set. The contact studs e~tend, like the fuses, essentially perpendicular to the in-line direction. The ends of each tubular fuse are held between bent-up contact parts of the contact studs, which extend from the contact surfaces on both sides of the carrier part of the apparatus. The contact parts are bent from the contact studs around a bendiny edge lying in th elongitudinal direction of the fuse.
It is evident from the drawing of this patent that a pole of the fuses is immediately adjacent to an associated arrester. This pole is directly joined to a pole of the arrester through the spring legs of the associated contact stud. The other pole of the arrester ~ ''"' '`' - . . ~
~ ', vP~ ~6 P 1533 uS
rests against a bent-up tab of a strip-like multiple grounding part which is in contact with a grounding spring of a receiver for the laminate module and the apparatus.
Furthermore, through German Patent 25 08 845 it is known to utilize assemblies without fuses, in which the grounded poles of arresters positioned perpendicular to the carrier part rest against spring fingers of a U-shaped bent grounding sheet. The other pole of the arrester stands on a flat melt-piece which rests against a contact zone of the contact stud. The contact stud has a U-shaped bent-up offset, the highest point of which reaches into the immediate vicinity of the ends of the spring fingers. During melting of the melt-piece, the spring finger sinks down so far that the contact stud is directly connected to ground.
An object of the present invention is to provide apparatus equipped with fuses and arresters having a short-circuit possibility of the above-described type while only slightly increasing its cost.
In accordance with the principles of the invention, this object is achieved by apparatus connectable to a laminate module of a telecommunication facility distributor having a row of arresters as parallel elements to ground and fuses as series elements. Both poles of each fuse are connected with contact parts. The contact part adjacent to an associated arrester is connected with one pole of the arrester and the other contact is connected with a multiple grounding part. Spring fingers of the multiple grounding part rest against associated arresters, each arrester provided with a respective melt-piece. Each spring finger projects beyond the arrester and into the vicinity of the associated contact part wherein, the distance in the spring direction between the contact ,' ~PA ~6 P 1533 US
1~12~12 part and the spring finger is less than the thickness of the melt-piece. Since the spring finger projects into the immediate vicinity of the contact part for the fuses, a bent-up offset can be dispensed with as a space saving measure. On melting of the melt-piece, the spring finger rests directly against the contact part for the fuses so that a particular electrical line is directly connected to ground.
A further aspect of the invention (originally filed claim 2) is to practically realize the double-sided arrangement of the conducting paths on a printed circuit board in a cost-efficient way. By arranging the arresters vertically, they can be staggered with small distances between them and thus save space. Contact zones for the arresters are formed as simple widenings of the conducting paths. ~ach arrester with a corresponding melt-piece is held clamped between khe circuit board and a spring finger.
A further aspect of the invention (originally filed claim 3) is to develope a double contact between the contact part and the spring finger which has a greater contact certainty.
Through a further aspect of the invention (originally filed claim 5), the multiple grounding part can be fastened to the apparatus in a simple manner without additional fastening means.
Since the spring finyers cover not only the arresters but also the contact pieces susceptible to e~cess voltage, the protection of the ' apparatus against electric shock hazard is also increased.
Through a further aspect of the invention (originally filed claims 7 and 9), different fuses can be used for the apparatus with the aid of different contact parts without further modifications.
.
, .
1 -~12912 Other features and advantages of the invention will be apparent from the description of the preferred embodiments, and from the claims.
For a fuller understanding of the present invention, reference should now be made to the following detailed description of the preferred embodiments of the invention and to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows a lateral section view of apparatus in accordance with the invention for protecting electrical lines in a distributor of a telephone exchange installation;
Fig. 2 shows a top view of the apparatus according to FIg. l;
Fig. 3 shows a lateral view of a part of the apparatus according to Fig. l;
Fig. 4 shows apparatus according to Fig. 1, but with different contact parts and different fuses;
Fig. 5 shows a top view of the apparatus according to Fig. 4;
Fig. 6 shows a lateral view of a contact part of the apparatus according to Fig. 4;
Fig. 7 shows a top view of a contact part according to Fig. 6;
and - ~ .
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: . .
:
.
:
Fig. 8 shows assembly of a part of the apparatus according to Fig. 4, having a fuse at the point of being set-in.
DETAILED D~SCRIPTION OF THE PREFERRED EMBODIMENTS
According to Figures l, 2, and 3, apparatus l consists of a circuit board 2 laminated on both sides, a housing 3, contact parts 4, fuses 5, voltage surge arresters 6, melt-pieces 7 and a multiple ground part 8. Circuit board 2 is provided along one of its edges on both of its sides with contact surfaces 9 for connection to contact springs l0 of a laminate module in a distributor of a ! telephone e~change installation. The two contact springs l0, which lie opposite each other, are electrically connected via conducting paths ll of circuit board 2, contact parts 4 and the fuses 5. One of the conducting paths ll which is arranged on the side of circuit board 2 which faces fuses 5 and arresters 6, is connected via an appropriate contact spring l0 with a wire of one of the outgoing subscriber lines. Conducting path ll e~tends to a point belsw an arrester 6 where it forms a widened contact zone for the melt-piece 7, which is held between the arrester 6 and the contact~zone. This conducting path ll passes through a feed-through eyelet, which is immediately adjacent to the contact zone for the arrester 6. Into this eyelet one of the contact parts 4 for the fuses is soldered.
The other contact part 4 is soldered into an eyelet adjacent to the ~5 contact surface 9, which is connected to the conducting path ll which is on the other side of circuit board 2. Contact parts 4 are flat and àxe forked-shaped so as to hold fuses 5 by their ends between spring legs 12. Contact parts 4 are soldered in the vertical position with a soldering mandril 13 into through-connected bores of circuit board 2. The arresters 6 standing perpendicularly above circuit board 2 are held between the spring fingers 14 of : ' '' ' ' ,, 1312ql2 multiple ground part 8 and melt-pieces 7. Spring fingers 14 extend to above the free front face of staggered adjacent contact parts 4.
The distance between spring fingers 14 and contact parts 4 is less than the thickness of a melt-piece 7. Upon melting, spring finger 14 comes to lie on the contact part ~, so that the electrical line is directly grounded. The free ends of spring fingers 14 are slit above contact parts 4, so that double contact to contact part 4 is established.
Multiple grounding part 8 is formed as a U-shaped bent sheet metal part, which rests with one leg on circuit board 2 and encompasses apparatus 1.
Housing 3 is produced by injection molding and is set onto circuit board 2 and connected with it through hot stamping of projecting pins 15, which reach throuyh bores of circuit board 2.
Housing 3 forms receiving sites for arresters 6 and fuses 5 and is provided with an encircling protective border 16 which mechanically stabilizes the apparatus. Additionally, handles, not shown here, are affixed on housing 3 for easier handling of the apparatus.
According to Figures 4 and 5, apparatus 1 is provided with U-shaped bent contact parts 18, instead of with flat contact parts 4 (Figure 1), one leg of which is soldered into an eyelet of circuit board 2. The deflectable free spring legs face each other in pairs and each holds a shorter tubular fuse 19 clamped on the front face.
The free legs of contact parts 18 are spread apart in the direction of the carrier plate and thereby press fuse 19 against the base of housing 3. The distance between the two legs of contact part 18 :
is adapted to the length of fuse 19. The end of contact part 18 facing away from circuit board 2 lies against a stop set-off 17 of housing 3 on the side opposite the fuse. In this way, the spring path is reduced and the clamping force increased. Contact parts 18, staggered corresponding to the staggered position of arresters 6, have in the extension of the soldred leg, projecting tabs 13 pointing away from circuit board 2, which have the same function with respect to the spring fingers 14 as flat contact parts 4 of Fig. 1.
As shown in Figures 6 and 7, the free spring leg of contact part !. 18 is curved concavely in its longitudinal direction toward fuse 19, a measure by which the latter is protected in its lateral position.
As shown in Figure 8, fuse 19 is initially pr~ssed against contact part 18 standing obliquely with one end. This has such great spring reserve that it is deflected sufficiently to allow the other front face of the fuse 19 to slide past the base section of the other contact part 18. The free end of the latter lies against an opening 20, which prevents the pre-stressed free spring leg from springing back too strongly.
Thus, there has been shown and described novel apparatus for protecting electrical lines in a distribution of a telecommunication installation which fulfills all the objects and advantages sought , . . ,, .~ - - - - :
vP~ 86 P 1533 US
therefore. Many changes, modifications, variations and other uses and applications of the sub~ect invention will, however, become apparent to those skilled in the art after considering this specification and the accompanying drawings which disclose preferred S embodiments thereof. All such changes, modifications, variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention which is limited only by the claims which follow.
_ g _ `':
,
BACKGROUND OF THE INVENTION
1. Field of the Invention The invention relates to apparatus for protecting electrical lines in a distributor of a telecommunication facility and in particular a telephone installation, with the apparatus connectable to a laminate module of the distributor which is equipped with in-line surge arresters as parallel elements to ground and fuses as series elements.
, 2. Description of the Prior Art Apparatus of this nature is known through German Patent 32 12 013. The poles of the fuses and the arresters are held by contact studs, which are fastened to a ~arrier part of the apparatus. The contact studs end in contact surfaces t which are arranged along a longitudinal edge of the apparatus and contacted by plugs of contact springs of the laminate module. The carrier part is formed as an injection moulded part into which the contact studs are set. The contact studs e~tend, like the fuses, essentially perpendicular to the in-line direction. The ends of each tubular fuse are held between bent-up contact parts of the contact studs, which extend from the contact surfaces on both sides of the carrier part of the apparatus. The contact parts are bent from the contact studs around a bendiny edge lying in th elongitudinal direction of the fuse.
It is evident from the drawing of this patent that a pole of the fuses is immediately adjacent to an associated arrester. This pole is directly joined to a pole of the arrester through the spring legs of the associated contact stud. The other pole of the arrester ~ ''"' '`' - . . ~
~ ', vP~ ~6 P 1533 uS
rests against a bent-up tab of a strip-like multiple grounding part which is in contact with a grounding spring of a receiver for the laminate module and the apparatus.
Furthermore, through German Patent 25 08 845 it is known to utilize assemblies without fuses, in which the grounded poles of arresters positioned perpendicular to the carrier part rest against spring fingers of a U-shaped bent grounding sheet. The other pole of the arrester stands on a flat melt-piece which rests against a contact zone of the contact stud. The contact stud has a U-shaped bent-up offset, the highest point of which reaches into the immediate vicinity of the ends of the spring fingers. During melting of the melt-piece, the spring finger sinks down so far that the contact stud is directly connected to ground.
An object of the present invention is to provide apparatus equipped with fuses and arresters having a short-circuit possibility of the above-described type while only slightly increasing its cost.
In accordance with the principles of the invention, this object is achieved by apparatus connectable to a laminate module of a telecommunication facility distributor having a row of arresters as parallel elements to ground and fuses as series elements. Both poles of each fuse are connected with contact parts. The contact part adjacent to an associated arrester is connected with one pole of the arrester and the other contact is connected with a multiple grounding part. Spring fingers of the multiple grounding part rest against associated arresters, each arrester provided with a respective melt-piece. Each spring finger projects beyond the arrester and into the vicinity of the associated contact part wherein, the distance in the spring direction between the contact ,' ~PA ~6 P 1533 US
1~12~12 part and the spring finger is less than the thickness of the melt-piece. Since the spring finger projects into the immediate vicinity of the contact part for the fuses, a bent-up offset can be dispensed with as a space saving measure. On melting of the melt-piece, the spring finger rests directly against the contact part for the fuses so that a particular electrical line is directly connected to ground.
A further aspect of the invention (originally filed claim 2) is to practically realize the double-sided arrangement of the conducting paths on a printed circuit board in a cost-efficient way. By arranging the arresters vertically, they can be staggered with small distances between them and thus save space. Contact zones for the arresters are formed as simple widenings of the conducting paths. ~ach arrester with a corresponding melt-piece is held clamped between khe circuit board and a spring finger.
A further aspect of the invention (originally filed claim 3) is to develope a double contact between the contact part and the spring finger which has a greater contact certainty.
Through a further aspect of the invention (originally filed claim 5), the multiple grounding part can be fastened to the apparatus in a simple manner without additional fastening means.
Since the spring finyers cover not only the arresters but also the contact pieces susceptible to e~cess voltage, the protection of the ' apparatus against electric shock hazard is also increased.
Through a further aspect of the invention (originally filed claims 7 and 9), different fuses can be used for the apparatus with the aid of different contact parts without further modifications.
.
, .
1 -~12912 Other features and advantages of the invention will be apparent from the description of the preferred embodiments, and from the claims.
For a fuller understanding of the present invention, reference should now be made to the following detailed description of the preferred embodiments of the invention and to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 shows a lateral section view of apparatus in accordance with the invention for protecting electrical lines in a distributor of a telephone exchange installation;
Fig. 2 shows a top view of the apparatus according to FIg. l;
Fig. 3 shows a lateral view of a part of the apparatus according to Fig. l;
Fig. 4 shows apparatus according to Fig. 1, but with different contact parts and different fuses;
Fig. 5 shows a top view of the apparatus according to Fig. 4;
Fig. 6 shows a lateral view of a contact part of the apparatus according to Fig. 4;
Fig. 7 shows a top view of a contact part according to Fig. 6;
and - ~ .
.
: . .
:
.
:
Fig. 8 shows assembly of a part of the apparatus according to Fig. 4, having a fuse at the point of being set-in.
DETAILED D~SCRIPTION OF THE PREFERRED EMBODIMENTS
According to Figures l, 2, and 3, apparatus l consists of a circuit board 2 laminated on both sides, a housing 3, contact parts 4, fuses 5, voltage surge arresters 6, melt-pieces 7 and a multiple ground part 8. Circuit board 2 is provided along one of its edges on both of its sides with contact surfaces 9 for connection to contact springs l0 of a laminate module in a distributor of a ! telephone e~change installation. The two contact springs l0, which lie opposite each other, are electrically connected via conducting paths ll of circuit board 2, contact parts 4 and the fuses 5. One of the conducting paths ll which is arranged on the side of circuit board 2 which faces fuses 5 and arresters 6, is connected via an appropriate contact spring l0 with a wire of one of the outgoing subscriber lines. Conducting path ll e~tends to a point belsw an arrester 6 where it forms a widened contact zone for the melt-piece 7, which is held between the arrester 6 and the contact~zone. This conducting path ll passes through a feed-through eyelet, which is immediately adjacent to the contact zone for the arrester 6. Into this eyelet one of the contact parts 4 for the fuses is soldered.
The other contact part 4 is soldered into an eyelet adjacent to the ~5 contact surface 9, which is connected to the conducting path ll which is on the other side of circuit board 2. Contact parts 4 are flat and àxe forked-shaped so as to hold fuses 5 by their ends between spring legs 12. Contact parts 4 are soldered in the vertical position with a soldering mandril 13 into through-connected bores of circuit board 2. The arresters 6 standing perpendicularly above circuit board 2 are held between the spring fingers 14 of : ' '' ' ' ,, 1312ql2 multiple ground part 8 and melt-pieces 7. Spring fingers 14 extend to above the free front face of staggered adjacent contact parts 4.
The distance between spring fingers 14 and contact parts 4 is less than the thickness of a melt-piece 7. Upon melting, spring finger 14 comes to lie on the contact part ~, so that the electrical line is directly grounded. The free ends of spring fingers 14 are slit above contact parts 4, so that double contact to contact part 4 is established.
Multiple grounding part 8 is formed as a U-shaped bent sheet metal part, which rests with one leg on circuit board 2 and encompasses apparatus 1.
Housing 3 is produced by injection molding and is set onto circuit board 2 and connected with it through hot stamping of projecting pins 15, which reach throuyh bores of circuit board 2.
Housing 3 forms receiving sites for arresters 6 and fuses 5 and is provided with an encircling protective border 16 which mechanically stabilizes the apparatus. Additionally, handles, not shown here, are affixed on housing 3 for easier handling of the apparatus.
According to Figures 4 and 5, apparatus 1 is provided with U-shaped bent contact parts 18, instead of with flat contact parts 4 (Figure 1), one leg of which is soldered into an eyelet of circuit board 2. The deflectable free spring legs face each other in pairs and each holds a shorter tubular fuse 19 clamped on the front face.
The free legs of contact parts 18 are spread apart in the direction of the carrier plate and thereby press fuse 19 against the base of housing 3. The distance between the two legs of contact part 18 :
is adapted to the length of fuse 19. The end of contact part 18 facing away from circuit board 2 lies against a stop set-off 17 of housing 3 on the side opposite the fuse. In this way, the spring path is reduced and the clamping force increased. Contact parts 18, staggered corresponding to the staggered position of arresters 6, have in the extension of the soldred leg, projecting tabs 13 pointing away from circuit board 2, which have the same function with respect to the spring fingers 14 as flat contact parts 4 of Fig. 1.
As shown in Figures 6 and 7, the free spring leg of contact part !. 18 is curved concavely in its longitudinal direction toward fuse 19, a measure by which the latter is protected in its lateral position.
As shown in Figure 8, fuse 19 is initially pr~ssed against contact part 18 standing obliquely with one end. This has such great spring reserve that it is deflected sufficiently to allow the other front face of the fuse 19 to slide past the base section of the other contact part 18. The free end of the latter lies against an opening 20, which prevents the pre-stressed free spring leg from springing back too strongly.
Thus, there has been shown and described novel apparatus for protecting electrical lines in a distribution of a telecommunication installation which fulfills all the objects and advantages sought , . . ,, .~ - - - - :
vP~ 86 P 1533 US
therefore. Many changes, modifications, variations and other uses and applications of the sub~ect invention will, however, become apparent to those skilled in the art after considering this specification and the accompanying drawings which disclose preferred S embodiments thereof. All such changes, modifications, variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention which is limited only by the claims which follow.
_ g _ `':
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Claims (10)
1. Apparatus for protecting electrical lines in a distributor of a telecommunication facility, said apparatus being connectable to a laminate module of the distributor having a row of surge arresters as parallel elements to ground and fuses as series elements, each fuse having two poles being connected with contact parts, of which the contact part adjacent to an associated arrester is connected with one pole of the arrester and the other contact part connected with a multiple grounding part, wherein:
said multiple grounding part has spring fingers which rest against corresponding ones of arresters provided with a melt-piece each spring finger projecting beyond the arrester and into the vicinity of an associated contact part, the distance in the spring direction between the contact part and the spring finger being less than the thickness of the melt-piece.
said multiple grounding part has spring fingers which rest against corresponding ones of arresters provided with a melt-piece each spring finger projecting beyond the arrester and into the vicinity of an associated contact part, the distance in the spring direction between the contact part and the spring finger being less than the thickness of the melt-piece.
2. Apparatus according to claim 1, wherein:
said contact part is soldered in a vertical position into a doubly laminated circuit board, the center axis of the associated arrester is perpendicular to the circuit board and the spring finger rests against the pole of the arrester facing away from the circuit board with its free end positioned directly above the free end of the contact part.
said contact part is soldered in a vertical position into a doubly laminated circuit board, the center axis of the associated arrester is perpendicular to the circuit board and the spring finger rests against the pole of the arrester facing away from the circuit board with its free end positioned directly above the free end of the contact part.
3. Apparatus according to claim 1, wherein:
said spring fingers are slit at their free ends.
said spring fingers are slit at their free ends.
4. Apparatus according to claim 2, wherein:
said spring fingers are slit at their free ends.
said spring fingers are slit at their free ends.
5. Apparatus according to claim 2, wherein:
said multiple grounding part is formed as a U-shaped bent sheet and is attached over the backside of the apparatus.
said multiple grounding part is formed as a U-shaped bent sheet and is attached over the backside of the apparatus.
6. Apparatus according to claim 1, further including:
a housing of synthetic material set onto said circuit board, said housing having recesses for receiving respective ones of said arresters and fuses.
a housing of synthetic material set onto said circuit board, said housing having recesses for receiving respective ones of said arresters and fuses.
7. Apparatus according to claim 1, wherein:
said contact part 4 for receiving the laminar fuses is a flat part having a punched-out forked contour.
said contact part 4 for receiving the laminar fuses is a flat part having a punched-out forked contour.
8. Apparatus according to claim 2, wherein:
said contact part 4 for receiving the laminar fuses is a flat part having a punched-out forked contour.
said contact part 4 for receiving the laminar fuses is a flat part having a punched-out forked contour.
9. Apparatus according to claim 1, wherein:
said fuses are tubular fuses, said contact parts are U-shaped, one leg of the U-shaped contact parts for said tubular fuses being soldered into the circuit board and the extension of this leg having projecting tabs which are located under a free end of the spring leg.
said fuses are tubular fuses, said contact parts are U-shaped, one leg of the U-shaped contact parts for said tubular fuses being soldered into the circuit board and the extension of this leg having projecting tabs which are located under a free end of the spring leg.
10. Apparatus according to 2, wherein:
said fuses are tubular fuses, said contact parts are U-shaped, one leg of the U-shaped contact parts for said tubular fuses being soldered into the circuit board and the extension of this leg having projecting tabs which are located under a free end of the spring leg.
said fuses are tubular fuses, said contact parts are U-shaped, one leg of the U-shaped contact parts for said tubular fuses being soldered into the circuit board and the extension of this leg having projecting tabs which are located under a free end of the spring leg.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3628809.8 | 1986-08-25 | ||
| DE3628807 | 1986-08-25 | ||
| DEP3628807.1 | 1986-08-25 | ||
| DE3628809 | 1986-08-25 | ||
| DEP3628843.8 | 1986-08-25 | ||
| DE3628843 | 1986-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1312912C true CA1312912C (en) | 1993-01-19 |
Family
ID=27194762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000545069A Expired - Fee Related CA1312912C (en) | 1986-08-25 | 1987-08-21 | Apparatus for protecting electrical lines in a distributor of a telecommunication installation |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0258628B1 (en) |
| AT (1) | ATE112095T1 (en) |
| AU (1) | AU598848B2 (en) |
| BR (1) | BR8704347A (en) |
| CA (1) | CA1312912C (en) |
| DE (1) | DE3750564D1 (en) |
| FI (1) | FI84768C (en) |
| NO (1) | NO171528C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0258664A3 (en) * | 1986-08-25 | 1990-03-21 | Siemens Aktiengesellschaft | Unit for securing electrical lines in distributors of telecommunication installations |
| EP0258629A3 (en) * | 1986-08-25 | 1990-01-31 | Siemens Aktiengesellschaft | Module for protecting electrical lines in telecommunication installations |
| NZ234141A (en) * | 1989-06-28 | 1992-10-28 | Siemens Ag | Safety connector to distribution frame for voltage surge protectors |
| EP0413978A3 (en) * | 1989-08-21 | 1991-07-31 | Siemens Aktiengesellschaft | Protective device for a distributor in a telecommunication installation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1171017B (en) * | 1962-10-20 | 1964-05-27 | Krone Kg | Fuse strip for telecommunications purposes |
| DE2508845C3 (en) * | 1975-02-28 | 1980-10-02 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Fuse strip |
| FR2341974A1 (en) * | 1976-02-18 | 1977-09-16 | Causse Raoul | LOW VOLTAGE LINE PROTECTION DEVICE, ESPECIALLY FOR TELEPHONE NETWORKS |
| DE3212013C2 (en) * | 1982-03-31 | 1984-08-09 | Siemens AG, 1000 Berlin und 8000 München | Separating device for distribution systems |
| EP0254126A3 (en) * | 1986-07-24 | 1989-03-29 | Siemens Aktiengesellschaft | Plug-in assemblage with fuses for distributing frame |
| EP0258664A3 (en) * | 1986-08-25 | 1990-03-21 | Siemens Aktiengesellschaft | Unit for securing electrical lines in distributors of telecommunication installations |
| EP0258629A3 (en) * | 1986-08-25 | 1990-01-31 | Siemens Aktiengesellschaft | Module for protecting electrical lines in telecommunication installations |
-
1987
- 1987-07-28 DE DE3750564T patent/DE3750564D1/en not_active Expired - Fee Related
- 1987-07-28 EP EP87110929A patent/EP0258628B1/en not_active Expired - Lifetime
- 1987-07-28 AT AT87110929T patent/ATE112095T1/en not_active IP Right Cessation
- 1987-08-21 CA CA000545069A patent/CA1312912C/en not_active Expired - Fee Related
- 1987-08-24 AU AU77352/87A patent/AU598848B2/en not_active Ceased
- 1987-08-24 BR BR8704347A patent/BR8704347A/en not_active IP Right Cessation
- 1987-08-24 FI FI873658A patent/FI84768C/en not_active IP Right Cessation
- 1987-08-25 NO NO873579A patent/NO171528C/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI873658A (en) | 1988-02-26 |
| NO171528B (en) | 1992-12-14 |
| FI84768C (en) | 1992-01-10 |
| DE3750564D1 (en) | 1994-10-27 |
| EP0258628B1 (en) | 1994-09-21 |
| ATE112095T1 (en) | 1994-10-15 |
| NO171528C (en) | 1993-03-24 |
| NO873579D0 (en) | 1987-08-25 |
| BR8704347A (en) | 1988-04-19 |
| AU598848B2 (en) | 1990-07-05 |
| FI84768B (en) | 1991-09-30 |
| EP0258628A2 (en) | 1988-03-09 |
| AU7735287A (en) | 1988-02-25 |
| EP0258628A3 (en) | 1990-01-31 |
| NO873579L (en) | 1988-02-26 |
| FI873658A0 (en) | 1987-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |