US3166656A - Cartridge fuse - Google Patents
Cartridge fuse Download PDFInfo
- Publication number
- US3166656A US3166656A US84769A US8476961A US3166656A US 3166656 A US3166656 A US 3166656A US 84769 A US84769 A US 84769A US 8476961 A US8476961 A US 8476961A US 3166656 A US3166656 A US 3166656A
- Authority
- US
- United States
- Prior art keywords
- binders
- arc
- cartridge fuse
- core
- fuse
- 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
Links
- 239000011230 binding agent Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 9
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010791 quenching Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- -1 for instance Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
-
- 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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
- H01H85/045—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type
- H01H85/0456—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type with knife-blade end contacts
-
- 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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/18—Casing fillings, e.g. powder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49107—Fuse making
Definitions
- the invention relates to a cartridge fuse, to its construction and a process of manufacturing the same, and, more par-ticularly, to such a manufacture using materials which do not leave solid, electrically conduct-ive residues, as binders for the production of an arc-quenching core of porous structure and of permanent shape.
- a cartridge fuse I which housing is a hollow body, manufactured by casting from a plastic material as a single piece, and a process for its manufacture which is distinguished by the fact that the fusible link and the ends of the associated conductor members, rigidly connected therewith, are imbedded in a mass of arc-quenching substance to which a slight amount of a binder, which does not adversely affect its porosity, has been added. After hardening of the binder, the quenched core thus obtained, permanent in shape, is enveloped, in a correspondingly larger mold, by the material forming the cartridge housing.
- binders cannot be considered for the solidiiication of the quencher cores, a requirement for an arc quencher being that the conductive spark gap, created upon the melting ofthe fuse link, be rendered non-conductive as rapidly as possible by the evaporated and condensed quenching ingredients.
- the known arc quenchers accomplish this in their loose state within the extremely short periody of a few thousandths of a second. This eifect would be eliminated by the binders described above.
- binders for quencher cores which, upon decomposition by the heat of the arc, neither give rise to gases or vapors ionizing the spark gap, nor leave behind a residue of solid and electrically conductive materials (e.g., carbon black) in quantities suliicient for the for the formation of a current bridge.
- unusable binders of the kind described are a number of synthetic resins, for instance, epoxy and phenolic resins.
- Pursuant to this invention we propose to use as binders in the manufacture of a shape-retaining, porous quencher core in the production of cartridge fuses such materials which, upon decomposition by the heat of an arc, do not exhibit the drawbacks set forth above.
- suitable solidifiers or binders for the purpose described vare the following: melamine resins, silicon resins, and calcium sulfate.
- a further feature of the invention is the employment of melamine resins, silicone resins and calcium sulfate, either singly or in mixtures, as binders in the manufacture of a porous and shape-retaining quencher core.
- FIGS. 1 and 2 are cross-sectional views of a cartridge fuse as described above in two successive stages of manufacturing.
- the cartridge fuse shown in the drawing comprises a pair of contact members 1, 2, bridged by a' fuse link having two branches 4, 5.
- the vcore 3 is in turn encapsulated in a housing or shell ⁇ 6, FIG. 2, consisting of an integrally molded piece of plastic material.
- a cartridge fuse having a pair of contact members bridged by a fusible link, an arc-quenching core encapsulating said link in intimate contact therewith and a housing enclosing said core, the improvement whereby said core is a solid body which consists of a molded porous mass of sand having admixed therewith a minor proportion of a binder selectedfrom the group which consists of melamine resins, silicone resins, calcium sulfate, and mixtures thereof.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
Description
Jan# 19. 1965 F. HOLLMANN ETAL 3,166,656
CARTRIDGE FUSE Filed Jan. 25. 1961 INVENTORSI FRITZ HOLLMANN HANS EMMERICH United States Patent 1 Claim. (ci. 20o-12o) The invention relates to a cartridge fuse, to its construction and a process of manufacturing the same, and, more par-ticularly, to such a manufacture using materials which do not leave solid, electrically conduct-ive residues, as binders for the production of an arc-quenching core of porous structure and of permanent shape.
In our co-pending application-Serial Number 56,722, led September 19, 1960, we have described` a cartridge fuse Iwhose housing is a hollow body, manufactured by casting from a plastic material as a single piece, and a process for its manufacture which is distinguished by the fact that the fusible link and the ends of the associated conductor members, rigidly connected therewith, are imbedded in a mass of arc-quenching substance to which a slight amount of a binder, which does not adversely affect its porosity, has been added. After hardening of the binder, the quenched core thus obtained, permanent in shape, is enveloped, in a correspondingly larger mold, by the material forming the cartridge housing.
Experiences with cartridge fuses made by this process have shown that for the solidiiication of the extinguisher, usually consisting of dry sand, to a shape-retaining but sufficiently porous core not every hardenable or thermosetting binde-r is suitable. This is the case because among the numerous binders used in the casting art, basically suited for the manufacture of sufficiently strong and porous sand cores,-there are those which emit, at theA high temperatures occurring during the melting of the fuses, vapors or gases which retard the extinguishing' of the arc, formed during and on account of the melting of the fuse, to such an extent lthat the cartridge housing explodes owing to the pressure generated. Hence, such binders cannot be considered for the solidiiication of the quencher cores, a requirement for an arc quencher being that the conductive spark gap, created upon the melting ofthe fuse link, be rendered non-conductive as rapidly as possible by the evaporated and condensed quenching ingredients. The known arc quenchers accomplish this in their loose state within the extremely short periody of a few thousandths of a second. This eifect would be eliminated by the binders described above.
When certairpother binders are used which do not emit detrimental gases or vapors, it has been established `that these binders leave behind, after termination of the extinguishing process, small quantities of conductive residues which suffice to form an electrically conductive bridge between the terminals, thereby preventing attainment of the required insulation value of the fuse after melting. These binders, hence, like-wise are unusuable for the purpose at hand.
Therefore, solely those materials can be considered as l3,166,656 Patented Jan. 19, 1965 binders for quencher cores which, upon decomposition by the heat of the arc, neither give rise to gases or vapors ionizing the spark gap, nor leave behind a residue of solid and electrically conductive materials (e.g., carbon black) in quantities suliicient for the for the formation of a current bridge. Examples of unusable binders of the kind described are a number of synthetic resins, for instance, epoxy and phenolic resins.
Pursuant to this invention we propose to use as binders in the manufacture of a shape-retaining, porous quencher core in the production of cartridge fuses such materials which, upon decomposition by the heat of an arc, do not exhibit the drawbacks set forth above.
It has been found that suitable solidifiers or binders for the purpose described vare the following: melamine resins, silicon resins, and calcium sulfate.
A further feature of the invention, therefore, is the employment of melamine resins, silicone resins and calcium sulfate, either singly or in mixtures, as binders in the manufacture of a porous and shape-retaining quencher core.
The invention is illustrated in the accompanying drawing in which FIGS. 1 and 2 are cross-sectional views of a cartridge fuse as described above in two successive stages of manufacturing.
The cartridge fuse shown in the drawing comprises a pair of contact members 1, 2, bridged by a' fuse link having two branches 4, 5. A core 3, composed of an arc-quenching substance of the character set forth, envelops the terminal portions of contact members 1, 2 and the intervening links 4, 5. The vcore 3 is in turn encapsulated in a housing or shell` 6, FIG. 2, consisting of an integrally molded piece of plastic material.
`We claim as our invention:
In a cartridge fuse having a pair of contact members bridged by a fusible link, an arc-quenching core encapsulating said link in intimate contact therewith and a housing enclosing said core, the improvement whereby said core is a solid body which consists of a molded porous mass of sand having admixed therewith a minor proportion of a binder selectedfrom the group which consists of melamine resins, silicone resins, calcium sulfate, and mixtures thereof.
References Cited by the Examiner UNITED STATES PATENTS 11/33 Meissner 18-59 1,947,085 2/34 Hill et al 18-59 2,328,825 9/43 McMahon ZOO-149 2,768,264 10/56 Jones et al 20D-144 2,816,990 12/57 Gelzheiser 200-120 2,830,156 4/ 58 Burgess 200-131 2,866,038 12/58 Kozacka ZOO-120 2,941,905 6/ 60 Hofmann 18-59 2,948,930 8/60 Herbst 18--59 2,949,641 8/60 Quackenbush 18-59 2,961,514 1l/60 Lindell 200-120 3,030,597 4/62 Piaia et al l859 ALEXANDER H. BRODMERKEL, Primary Examiner. WILLIAM I. STEPHENSON, Examiner.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED33033A DE1202892B (en) | 1960-04-04 | 1960-04-04 | Fuse cartridge |
DED34704A DE1296693B (en) | 1960-04-04 | 1960-11-10 | Procedure for manufacturing fuse cartridges |
DED0035316 | 1961-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3166656A true US3166656A (en) | 1965-01-19 |
Family
ID=27209695
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US56722A Expired - Lifetime US3196521A (en) | 1960-04-04 | 1960-09-19 | Fuse cartridge |
US84769A Expired - Lifetime US3166656A (en) | 1960-04-04 | 1961-01-25 | Cartridge fuse |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US56722A Expired - Lifetime US3196521A (en) | 1960-04-04 | 1960-09-19 | Fuse cartridge |
Country Status (7)
Country | Link |
---|---|
US (2) | US3196521A (en) |
CH (3) | CH381312A (en) |
DE (2) | DE1202892B (en) |
FI (1) | FI40397B (en) |
IT (1) | IT699995A (en) |
LU (2) | LU39090A1 (en) |
NL (3) | NL133175C (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3268698A (en) * | 1963-08-12 | 1966-08-23 | Westinghouse Electric Corp | Electrical apparatus comprising sulfur hexafluoride and organic insulation with anhydrous calcium sulfate |
US3317689A (en) * | 1963-04-05 | 1967-05-02 | Ferraz & Cie Lucien | Cartridge fuses with non-porous arc-quenching material |
US3317690A (en) * | 1960-04-04 | 1967-05-02 | Driescher Spezialfab Fritz | Fuse cartridge |
US3358064A (en) * | 1964-03-24 | 1967-12-12 | Vitramon Inc | Encapsulating molding composition and method for molding the same |
US3368047A (en) * | 1967-06-19 | 1968-02-06 | Westinghouse Electric Corp | Fuse having a sand core |
US3838375A (en) * | 1973-01-29 | 1974-09-24 | Gen Electric | Current limiting fuse |
US4313099A (en) * | 1980-01-03 | 1982-01-26 | Mcgraw-Edison Company | Current limiting fuse having aluminum sulfate arc-quenching filler |
US5670926A (en) * | 1995-06-08 | 1997-09-23 | General Electric Company | High-voltage fuse having a core of bound silica sand about which fusible elements are wound |
EP1162640A1 (en) * | 2000-06-07 | 2001-12-12 | Abb Research Ltd. | Arc extinguishing material |
US6642833B2 (en) | 2001-01-26 | 2003-11-04 | General Electric Company | High-voltage current-limiting fuse |
CN104134776A (en) * | 2013-05-03 | 2014-11-05 | 罗伯特·博世有限公司 | Battery with overload protection |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3337705A (en) * | 1964-01-27 | 1967-08-22 | Chase Shawmut Co | Fusible protective device |
US3319027A (en) * | 1965-01-26 | 1967-05-09 | Chase Shawmut Co | Encapsulated fuse structure for polyphase circuits |
US3654696A (en) * | 1970-01-29 | 1972-04-11 | Bernard Wechsler | Method for manufacturing electric fuses |
US3914863A (en) * | 1972-05-04 | 1975-10-28 | Gerald Wiebe | Method of forming a fuse |
DE2928822A1 (en) * | 1979-07-17 | 1981-02-05 | Siemens Ag | High tension fuse - with core of moulding sand and binder carrying fuse wire spiral in quartz sand filled sleeve |
FI117587B (en) | 2004-06-18 | 2006-11-30 | Nethawk Oyj | Method, device, and computer program product for monitoring data communications |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1935885A (en) * | 1930-01-15 | 1933-11-21 | Telefunken Gmbh | Electrical apparatus |
US1947085A (en) * | 1931-09-22 | 1934-02-13 | Westinghouse Electric & Mfg Co | Electrical apparatus |
US2328825A (en) * | 1941-09-25 | 1943-09-07 | Schweitzer & Conrad Inc | Arc-extinguishing means |
US2768264A (en) * | 1953-04-28 | 1956-10-23 | Rostone Corp | Arc-suppressing device |
US2816990A (en) * | 1954-09-24 | 1957-12-17 | Westinghouse Electric Corp | Circuit breaker |
US2830156A (en) * | 1956-12-21 | 1958-04-08 | Jr Arthur A Burgess | Shock and vibration resistant fuse |
US2866038A (en) * | 1957-05-09 | 1958-12-23 | Chase Shawmut Co | Current-limiting fuses with increased interrupting capacity |
US2941905A (en) * | 1957-04-05 | 1960-06-21 | Westinghouse Electric Corp | Filled organopolysiloxane coating for electrical members |
US2948930A (en) * | 1955-08-09 | 1960-08-16 | Biwax Corp | Method of potting electrical equipment |
US2949641A (en) * | 1956-06-26 | 1960-08-23 | Whitney Blake Co | Electrical connector manufacture |
US2961514A (en) * | 1959-01-19 | 1960-11-22 | S & C Electric Co | Circuit interrupter |
US3030597A (en) * | 1958-02-28 | 1962-04-17 | Westinghouse Electric Corp | Insulated electrical apparatus |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE412490C (en) * | 1923-07-13 | 1925-04-23 | Elfa Elektrotechnische Fabrik | Fusible link with variable cross-section and with over-molding made of insulating material |
US1862317A (en) * | 1927-12-23 | 1932-06-07 | Schweitzer & Conrad Inc | Fuse |
US1934459A (en) * | 1928-03-23 | 1933-11-07 | Gen Electric | High vacuum fuse |
US1875031A (en) * | 1928-11-10 | 1932-08-30 | Gen Chemical Corp | Machine for making wax bottles |
US2493434A (en) * | 1946-03-21 | 1950-01-03 | Joslyn Mfg And Supply Company | Method of manufacturing fuse links |
US2681398A (en) * | 1953-03-27 | 1954-06-15 | Chase Shawmut Co | Fluid-tight fuse structure |
US2740187A (en) * | 1955-03-07 | 1956-04-03 | Chase Shawmut Co | Methods of assembling fuses |
US2940161A (en) * | 1955-10-11 | 1960-06-14 | Western Electric Co | Methods of making encapsulated electrical devices |
US2847707A (en) * | 1956-01-23 | 1958-08-19 | Walter J Maker | Apparatus for encapsulating articles in a plastic coating |
US2892061A (en) * | 1958-07-24 | 1959-06-23 | Chase Shawmut Co | Fuses with fulgurite suppressing means |
US2895031A (en) * | 1958-07-24 | 1959-07-14 | Chase Shawmut Co | Fusible protective devices |
US2946092A (en) * | 1958-08-04 | 1960-07-26 | Barr Rubber Products Company | Apparatus for rotationally distributing a liquid charge within a mold |
-
0
- IT IT699995D patent/IT699995A/it unknown
- NL NL255898D patent/NL255898A/xx unknown
- NL NL272345D patent/NL272345A/xx unknown
- NL NL133175D patent/NL133175C/xx active
-
1960
- 1960-04-04 DE DED33033A patent/DE1202892B/en active Pending
- 1960-08-18 LU LU39090D patent/LU39090A1/xx unknown
- 1960-09-19 US US56722A patent/US3196521A/en not_active Expired - Lifetime
- 1960-11-10 DE DED34704A patent/DE1296693B/en active Pending
- 1960-12-19 CH CH1415660A patent/CH381312A/en unknown
- 1960-12-20 LU LU39561D patent/LU39561A1/xx unknown
- 1960-12-29 FI FI2130/60A patent/FI40397B/fi active
-
1961
- 1961-01-14 CH CH45361A patent/CH392671A/en unknown
- 1961-01-25 US US84769A patent/US3166656A/en not_active Expired - Lifetime
- 1961-11-23 CH CH1364261A patent/CH388431A/en unknown
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1935885A (en) * | 1930-01-15 | 1933-11-21 | Telefunken Gmbh | Electrical apparatus |
US1947085A (en) * | 1931-09-22 | 1934-02-13 | Westinghouse Electric & Mfg Co | Electrical apparatus |
US2328825A (en) * | 1941-09-25 | 1943-09-07 | Schweitzer & Conrad Inc | Arc-extinguishing means |
US2768264A (en) * | 1953-04-28 | 1956-10-23 | Rostone Corp | Arc-suppressing device |
US2816990A (en) * | 1954-09-24 | 1957-12-17 | Westinghouse Electric Corp | Circuit breaker |
US2948930A (en) * | 1955-08-09 | 1960-08-16 | Biwax Corp | Method of potting electrical equipment |
US2949641A (en) * | 1956-06-26 | 1960-08-23 | Whitney Blake Co | Electrical connector manufacture |
US2830156A (en) * | 1956-12-21 | 1958-04-08 | Jr Arthur A Burgess | Shock and vibration resistant fuse |
US2941905A (en) * | 1957-04-05 | 1960-06-21 | Westinghouse Electric Corp | Filled organopolysiloxane coating for electrical members |
US2866038A (en) * | 1957-05-09 | 1958-12-23 | Chase Shawmut Co | Current-limiting fuses with increased interrupting capacity |
US3030597A (en) * | 1958-02-28 | 1962-04-17 | Westinghouse Electric Corp | Insulated electrical apparatus |
US2961514A (en) * | 1959-01-19 | 1960-11-22 | S & C Electric Co | Circuit interrupter |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3317690A (en) * | 1960-04-04 | 1967-05-02 | Driescher Spezialfab Fritz | Fuse cartridge |
US3317689A (en) * | 1963-04-05 | 1967-05-02 | Ferraz & Cie Lucien | Cartridge fuses with non-porous arc-quenching material |
US3268698A (en) * | 1963-08-12 | 1966-08-23 | Westinghouse Electric Corp | Electrical apparatus comprising sulfur hexafluoride and organic insulation with anhydrous calcium sulfate |
US3358064A (en) * | 1964-03-24 | 1967-12-12 | Vitramon Inc | Encapsulating molding composition and method for molding the same |
US3368047A (en) * | 1967-06-19 | 1968-02-06 | Westinghouse Electric Corp | Fuse having a sand core |
US3838375A (en) * | 1973-01-29 | 1974-09-24 | Gen Electric | Current limiting fuse |
US4313099A (en) * | 1980-01-03 | 1982-01-26 | Mcgraw-Edison Company | Current limiting fuse having aluminum sulfate arc-quenching filler |
US5670926A (en) * | 1995-06-08 | 1997-09-23 | General Electric Company | High-voltage fuse having a core of bound silica sand about which fusible elements are wound |
EP1162640A1 (en) * | 2000-06-07 | 2001-12-12 | Abb Research Ltd. | Arc extinguishing material |
US6645637B2 (en) | 2000-06-07 | 2003-11-11 | Abb Research Ltd | Extinguishing medium for quenching electric arcs scope |
AU774864B2 (en) * | 2000-06-07 | 2004-07-08 | Abb Research Ltd | Extinguishing medium for quenching electric arcs scope |
US6642833B2 (en) | 2001-01-26 | 2003-11-04 | General Electric Company | High-voltage current-limiting fuse |
CN104134776A (en) * | 2013-05-03 | 2014-11-05 | 罗伯特·博世有限公司 | Battery with overload protection |
DE102013208135A1 (en) | 2013-05-03 | 2014-11-06 | Robert Bosch Gmbh | Battery with overcharge protection |
CN104134776B (en) * | 2013-05-03 | 2017-12-12 | 罗伯特·博世有限公司 | battery with overload protection |
DE102013208135B4 (en) | 2013-05-03 | 2023-11-09 | Robert Bosch Gmbh | Battery with overcharge protection |
Also Published As
Publication number | Publication date |
---|---|
NL272345A (en) | |
CH381312A (en) | 1964-08-31 |
NL255898A (en) | |
DE1202892B (en) | 1965-10-14 |
CH392671A (en) | 1965-05-31 |
LU39090A1 (en) | 1960-10-18 |
LU39561A1 (en) | 1961-02-20 |
IT699995A (en) | |
FI40397B (en) | 1968-09-30 |
CH388431A (en) | 1965-02-28 |
DE1296693B (en) | 1969-06-04 |
NL133175C (en) | |
US3196521A (en) | 1965-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3166656A (en) | Cartridge fuse | |
US4065741A (en) | Thermal fuse with a fusible temperature sensitive pellet | |
US2328825A (en) | Arc-extinguishing means | |
US4855705A (en) | Fuse with a solid arc-quenching body made of non-porous rigid ceramic | |
GB1119087A (en) | Current-limiting fuse having an impact member to sever mechanically ribbon extensionsof current-limiting elements | |
US2483577A (en) | Circuit interrupter | |
US3437971A (en) | Current limiting fuse | |
DE2363896A1 (en) | CURRENT LIMIT FUSE | |
US2073565A (en) | Electric circuit breaker | |
US3317689A (en) | Cartridge fuses with non-porous arc-quenching material | |
US2918551A (en) | Fuses with built-in indicating plungers | |
US3250879A (en) | Electric fuse comprising plug terminals having an improved seal and pinning means | |
US3244839A (en) | Current limiting vacuum fuse | |
US3156801A (en) | Current limiting fuse unit with casing sealing its terminals | |
US3227841A (en) | Protectors for electric circuits | |
US2293381A (en) | Sparking plug | |
US2417268A (en) | Indicating means for thermal circuit interrupters | |
US2445190A (en) | Electric circuit breaker | |
US2826660A (en) | Current-limiting fuses with fuse links arranged in radial planes | |
GB1141234A (en) | Environmental heat responsive circuit interrupter | |
US3634812A (en) | Fuse clamp | |
US3317690A (en) | Fuse cartridge | |
US3876966A (en) | Protector for electric circuits | |
US2780696A (en) | Composite fuse link | |
US3113193A (en) | Electric striker pin fuses for elevated circuit voltages |