US3416114A - Plug-in type flat fuse - Google Patents

Plug-in type flat fuse Download PDF

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Publication number
US3416114A
US3416114A US543717A US54371766A US3416114A US 3416114 A US3416114 A US 3416114A US 543717 A US543717 A US 543717A US 54371766 A US54371766 A US 54371766A US 3416114 A US3416114 A US 3416114A
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United States
Prior art keywords
fuse
plug
leads
flat
strip
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Expired - Lifetime
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US543717A
Inventor
Bernutz Johannes
Schlogl Elmar
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International Standard Electric Corp
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International Standard Electric Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/06—Boards, panels, desks; Parts thereof or accessories therefor having associated enclosures, e.g. for preventing access to live parts
    • H02B1/063—Boards, panels, desks; Parts thereof or accessories therefor having associated enclosures, e.g. for preventing access to live parts with tamper resistant sealing device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/02—Controlling members for hand actuation by linear movement, e.g. push buttons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H1/403—Contacts forming part of a printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • 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
    • H01H85/046—Fuses formed as printed circuits
    • 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
    • H01H85/26—Magazine arrangements
    • H01H85/263—Magazine arrangements with spare printed circuit fuse
    • 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
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact
    • 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
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/06—Boards, panels, desks; Parts thereof or accessories therefor having associated enclosures, e.g. for preventing access to live parts
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/26—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand
    • H03J5/32—Stationary tuning circuits or elements selected by push-button

Definitions

  • the invention relates to fuses and more particularly to a flat fuse, capable of being plugged into spring strips.
  • plug-in type flat fuses known to be used in receptacles in order to avoid an excessive load on the main fuse. They consist of a flat insulating body, the ends of which are encompassed by contact pieces and connected with each other by an easily melted wire. These fuses are clamped between two contact springs, arranged in the receptacle. These flat fuses are primarily used for large current service but do not meet the requirements of small current service. They cannot be plugged singleended, cannot be resoldered for another use, cannot be provided with additional contacts and are removable, but on the other hand are relatively expensive.
  • fuse straps and conductor leads are applied on the plug body in the form of a printed circuit.
  • the flat fuse is made as a standard fuse with fusing strips of different cnoss-section.
  • the fusing strip consists of wire, either welded on or soldered on.
  • the mechanically biassed fuse wire keeps the study of a contact spring in the open condition and when the wire blows the spring contact is closed and activates a warning device.
  • a reed contact is kept in open condition through a magnet.
  • the flat fuse can be plugged single-ended, i.e. it can be used in a plug-in system with known spring strips.
  • the flat fuse is moreover manufactured in the kind of printed circuit or provided with fuse wires and straps as conductive leads for higher currents. Furthermore it can be equipped, if so required, with open or closed additional contacts for signalling the operating condition. It is manufactured in the shape of a standard fuse with several fuse strips.
  • the plugin body is'made removable and can be provided with or without an engaging device. Another advantage is the arrangement of the fuse strip between conductive leads of contact combinations.
  • FIGS. 1a and 1b show a simple plug-type fiat fuse seen in two elevations
  • FIGS. 10 and 1d show the contact springs which engage the flat fuse
  • FIG. 2a shows another construction of the flat fuse as a standard fuse
  • FIG. 2b shows the construction of a conductive lead to an air-gap.
  • FIGS. 3a and 3b show a flat fuse with wire as a fusing strip in two elevations
  • FIG. 4 shows a spring strip with different flat fuses and a cable miniature plug
  • FIGS. 5a, 5b and 50 show the construction of the fiat fuse as resolderable fuse in three elevations
  • FIGS. 6a and 6b show the construction as a resolderable fuse with a reed contact in two elevations
  • FIG. 7 shows an unremovable fiat fuse in a separating or disconnecting piece with engaging device in a perspective view
  • FIG. 8 shows a construction with several fusing routes.
  • FIG. 1 shows a plug-type fiat fuse in which the conductive leads 1 of the copper foil are mutually connected as fuse strips 1'.
  • the conductive leads in the kind of the printed circuit are applied to the plug-in body 2, provided at its top end with gripping grooves 3, for example.
  • the value of the fuse 4 is applied, e.g. by stamping.
  • 5 indicates the contact springs of the spring strip 6 (FIG. 4) with which the flat fuse engages when plugging. If required the fuse strip 1 is marked on its surface with a substance which changes the colour at an excessive load or if the fuse blows.
  • FIG. 2a shows a type of the fiat fuse as standard fuse. Between the leads 1, fuse strips 1' of different crosssection are arranged; the not required fuse strips are eliminated by perforations.
  • FIG. 2b shows a conductive [lead in which a coarse spark gap 7 is arranged in parallel to the fuse strip 1.
  • the conductive leads are made as strips or ribbons 8, as shown in FIGS. 3a and 3b.
  • This figure shows, moreover, another type whereby the fuse strip is provided in the shape of a wire 9. Said wire 9 is led over a hole 10, the wires cross-section being in compliance with the fusing value. The wire 9 is welded to one conductive lead and soldered to the other one.
  • FIG. 4 shows a spring strip 6 with various components. Besides four flat fuses with different fuse values 4, a cable miniature plug 11 is plugged into said spring strip. The disconnecting or separating pieces 12 can be seen between the plugged-in elements which also serve to limit shift, engagement and non-removability.
  • fuse wire 9 is mechanically biased, as may be gathered from FIGS. 5 and 6, plug-in type flat resoliderable fuses are obtained.
  • the blowing of these fuses can be indicated either by optical or acoustical signals (not shown).
  • Switching-in is made by the contact spring 13, the stud 14 of which is normally placed on the fuse wire 9, thus preventing the contact between the leads 30 and 31 until the fuse wire 9 blows.
  • a reed contact switch 20 is arranged in the flat fuse, instead of the contact spring 13, so that when the fuse wire 9 melts, a magnet 15 is urged by the spring 16 into a position over the contacts of the reed contact switch 20 so that these contacts close and complete the circuit.
  • this embodiment is provided with caps 17.
  • the plug-in flat fuse cap can also be made in the multistep type, which is particularly economical.
  • This type 3 4 plug can be constructed in a way known to the art for conductive leads, said normal conductive leads being two (FIG. 7) or more than two (FIG. 8), engaging spaced apart to provideaspark gap. positions.
  • the separating piece 12 in FIG. 7 shows to this end cams 18 and the fiat fuse shows a stud 19 on the References cued 5 UNITED STATES PATENTS
  • FIG. 8 demonstrates that when a fuse strip blows the 1,981,735 11/1934 Lipsey 200-125 fiat fuse is put deeper by another step until it engages 2 374 248 2/1959 T d f 1 200-125 next time.
  • fuse strip 1 or 1" 2 934, 27 4 19 Bristol et 1 200-129 respectively becomes effective.
  • the contact springs are 2,9 1 059 19 0 i et 1 200-129 shown in rel n to the plugstrips 673,386 5/1901 Courtier 200-12s X
  • the fuse strip 1' can be made in the same method as 70 0 2 3 1902 Hunt 1 goo-.125 the conductive leads 1, but it can also be appli d af r- 1,130,435 3/1915 Davis 335-142 wards by another method, e.g. thin-film technique, evap- 1, 72,2 1 5 1928 hn zoo-415.5 oration or the like.
  • each of said fuse leads have a different cross-sectional area, some of BERNARD A, GILHEANY, P i a E i said fuse leads having perforations thereon, so that said perforated fuse leads are rendered inoperative; GILSONAsslstamExammer' said conductive leads are extended beyond said fuse Us cl XR leads; and further comprising conductive leads normal to said 337-273, 255

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Fuses (AREA)
  • Slide Switches (AREA)

Description

Dec. 10, 1968 BERNUTZ ET AL PLUG-IN TYPE FLAT FUSE 5 Sheets-Sheet 1 Filed April 19, 1966 Fig. 3 (0/ 3 z 9 a VII/I41? I ll? 4 2 a 3 Fig.4
INVENTORS JOHA mves BEAM/(I72 sum/2 Sci/L664 ,7 BY Z 7 4% ATTORNEY Dec. 10, 1968 Q J BERNUTZ ETAL 3,416,114
PLUG-IN TYPE FLAT FUSE Filed April 19, 1966 3 Sheets-Sheet 2 INVENTORS JOHANNS 86R ivy r2. ELMAR scwz. o c L ATTORNEY Dec. 10, 1968 J. BERNUTZ ET A. 3,416,114
PLUG-IN TYPE FLAT FUSE Filed April 19, 1966 3 Sheets-Sheet 5 INVENTORS JOHANNES BERNUT' Z eLMA/z sc/M 6G1.
BY 41% r,
United States Patent ABSTRACT OF THE DISCLOSURE A multi-valued plug-in fuse in which parallel conductors are provided on a plug body of insulating material between which a plurality of fusible leads of different cross-sections are connected. A spark gap is arranged at the ends of the parallel conductors in parallel with the fuse leads.
The invention relates to fuses and more particularly to a flat fuse, capable of being plugged into spring strips.
There are plug-in type flat fuses known to be used in receptacles in order to avoid an excessive load on the main fuse. They consist of a flat insulating body, the ends of which are encompassed by contact pieces and connected with each other by an easily melted wire. These fuses are clamped between two contact springs, arranged in the receptacle. These flat fuses are primarily used for large current service but do not meet the requirements of small current service. They cannot be plugged singleended, cannot be resoldered for another use, cannot be provided with additional contacts and are removable, but on the other hand are relatively expensive.
It is the object of the invention to avoid these advantages. This is achieved, according to the invention, in that conductor leads are provided on the plug body of insulating material between which straps with a defined fusing value and corresponding cross-section are inserted.
According to an embodiment of the invention, fuse straps and conductor leads are applied on the plug body in the form of a printed circuit.
According to a further embodiment of the invention, the flat fuse is made as a standard fuse with fusing strips of different cnoss-section.
In another embodiment of the invention, the fusing strip consists of wire, either welded on or soldered on.
In still another embodiment of the invention, the mechanically biassed fuse wire keeps the study of a contact spring in the open condition and when the wire blows the spring contact is closed and activates a warning device. In a variation of this embodiment a reed contact is kept in open condition through a magnet.
According to a further embodiment of the invention, between two conductive leads several fuse strips are arranged for replugging if the first fuse strip blows.
There are various advantages obtained by the construction according to the invention. The flat fuse can be plugged single-ended, i.e. it can be used in a plug-in system with known spring strips. The flat fuse is moreover manufactured in the kind of printed circuit or provided with fuse wires and straps as conductive leads for higher currents. Furthermore it can be equipped, if so required, with open or closed additional contacts for signalling the operating condition. It is manufactured in the shape of a standard fuse with several fuse strips. The plugin body is'made removable and can be provided with or without an engaging device. Another advantage is the arrangement of the fuse strip between conductive leads of contact combinations.
' 3,416,114 Patented Dec. 10, 1968 The invention is described with the aid of drawings, wherein:
FIGS. 1a and 1b show a simple plug-type fiat fuse seen in two elevations,
FIGS. 10 and 1d show the contact springs which engage the flat fuse,
FIG. 2a shows another construction of the flat fuse as a standard fuse,
FIG. 2b shows the construction of a conductive lead to an air-gap.
FIGS. 3a and 3b show a flat fuse with wire as a fusing strip in two elevations,
FIG. 4 shows a spring strip with different flat fuses and a cable miniature plug,
FIGS. 5a, 5b and 50 show the construction of the fiat fuse as resolderable fuse in three elevations,
FIGS. 6a and 6b show the construction as a resolderable fuse with a reed contact in two elevations,
FIG. 7 shows an unremovable fiat fuse in a separating or disconnecting piece with engaging device in a perspective view, and
FIG. 8 shows a construction with several fusing routes.
FIG. 1 shows a plug-type fiat fuse in which the conductive leads 1 of the copper foil are mutually connected as fuse strips 1'.
The conductive leads in the kind of the printed circuit are applied to the plug-in body 2, provided at its top end with gripping grooves 3, for example. On the plug-in body 2, the value of the fuse 4 is applied, e.g. by stamping. 5 indicates the contact springs of the spring strip 6 (FIG. 4) with which the flat fuse engages when plugging. If required the fuse strip 1 is marked on its surface with a substance which changes the colour at an excessive load or if the fuse blows.
FIG. 2a shows a type of the fiat fuse as standard fuse. Between the leads 1, fuse strips 1' of different crosssection are arranged; the not required fuse strips are eliminated by perforations.
FIG. 2b shows a conductive [lead in which a coarse spark gap 7 is arranged in parallel to the fuse strip 1. For higher amperages the conductive leads are made as strips or ribbons 8, as shown in FIGS. 3a and 3b. This figure shows, moreover, another type whereby the fuse strip is provided in the shape of a wire 9. Said wire 9 is led over a hole 10, the wires cross-section being in compliance with the fusing value. The wire 9 is welded to one conductive lead and soldered to the other one.
FIG. 4 shows a spring strip 6 with various components. Besides four flat fuses with different fuse values 4, a cable miniature plug 11 is plugged into said spring strip. The disconnecting or separating pieces 12 can be seen between the plugged-in elements which also serve to limit shift, engagement and non-removability.
If the fuse wire 9 is mechanically biased, as may be gathered from FIGS. 5 and 6, plug-in type flat resoliderable fuses are obtained. The blowing of these fuses can be indicated either by optical or acoustical signals (not shown).
Switching-in is made by the contact spring 13, the stud 14 of which is normally placed on the fuse wire 9, thus preventing the contact between the leads 30 and 31 until the fuse wire 9 blows. For particular cases, as shown in FIG. 6, a reed contact switch 20 is arranged in the flat fuse, instead of the contact spring 13, so that when the fuse wire 9 melts, a magnet 15 is urged by the spring 16 into a position over the contacts of the reed contact switch 20 so that these contacts close and complete the circuit.
To protect the reed contact switch 20, this embodiment is provided with caps 17.
The plug-in flat fuse cap can also be made in the multistep type, which is particularly economical. This type 3 4 plug can be constructed in a way known to the art for conductive leads, said normal conductive leads being two (FIG. 7) or more than two (FIG. 8), engaging spaced apart to provideaspark gap. positions. The separating piece 12 in FIG. 7 shows to this end cams 18 and the fiat fuse shows a stud 19 on the References cued 5 UNITED STATES PATENTS FIG. 8 demonstrates that when a fuse strip blows the 1,981,735 11/1934 Lipsey 200-125 fiat fuse is put deeper by another step until it engages 2 374 248 2/1959 T d f 1 200-125 next time. Then the next following fuse strip 1" or 1" 2 934, 27 4 19 Bristol et 1 200-129 respectively becomes effective. The contact springs are 2,9 1 059 19 0 i et 1 200-129 shown in rel n to the plugstrips 673,386 5/1901 Courtier 200-12s X The fuse strip 1' can be made in the same method as 70 0 2 3 1902 Hunt 1 goo-.125 the conductive leads 1, but it can also be appli d af r- 1,130,435 3/1915 Davis 335-142 wards by another method, e.g. thin-film technique, evap- 1, 72,2 1 5 1928 hn zoo-415.5 oration or the like. 2,960,584 11/ 1960 Mobarry 335-142 We c1a1m: 3,183,327 5/1965 Kozacka 200-121 1. Aplug-m liat fuse comprising: 3,190,987 6/1965 Fister 200-117 X a f at dlel t member; 3,271,708 9/ 1966 McCormick 335 205 two printed circuit conductive leads attached verti lly 1,848,152 3/1932 Bieger 200-118 X in parallel on the face of said dielectric member; 57 405 11 1951 McAlistelgo -135 X a. plurality of fuse leads attached horizontally on the ,7 0,5 7 10 1 55 Detch 200-435 face of said dielectric member and connecting said 49 2 9 3 1 1 Maxstadt 2()Q 135 X conductive printed circuit leads, each of said fuse leads have a different cross-sectional area, some of BERNARD A, GILHEANY, P i a E i said fuse leads having perforations thereon, so that said perforated fuse leads are rendered inoperative; GILSONAsslstamExammer' said conductive leads are extended beyond said fuse Us cl XR leads; and further comprising conductive leads normal to said 337-273, 255
US543717A 1964-09-26 1966-04-19 Plug-in type flat fuse Expired - Lifetime US3416114A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DEST22731A DE1275655B (en) 1964-09-26 1964-09-26 Combined button and connector strip
DEST22800A DE1230879B (en) 1964-09-26 1964-10-09 Button strips with interchangeable contact combinations
DEST023729 1965-04-23
DEST23765A DE1259999B (en) 1964-09-26 1965-04-30 Button strips with interchangeable contact combinations
DEST024551 1965-10-23
NL6600597A NL6600597A (en) 1964-09-26 1966-01-17
NL6605249A NL6605249A (en) 1964-09-26 1966-04-20
NL6607975A NL6607975A (en) 1964-09-26 1966-06-09

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US3416114A true US3416114A (en) 1968-12-10

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US543717A Expired - Lifetime US3416114A (en) 1964-09-26 1966-04-19 Plug-in type flat fuse

Country Status (9)

Country Link
US (1) US3416114A (en)
BE (4) BE676469A (en)
CH (1) CH456749A (en)
DE (5) DE1275655B (en)
DK (1) DK126809B (en)
FR (5) FR1447659A (en)
GB (4) GB1122793A (en)
NL (4) NL6600597A (en)
SE (3) SE329661B (en)

Cited By (6)

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US3500276A (en) * 1967-10-25 1970-03-10 Texas Instruments Inc Electrical fuse and heater units
US3928835A (en) * 1974-04-26 1975-12-23 Castro Genera Jorge Electric switch box
FR2825512A1 (en) * 2001-05-29 2002-12-06 Cooper Technologies Co MAGNETICALLY ACTUATED FUSE STATUS INDICATOR
EP1463083A2 (en) * 2003-03-29 2004-09-29 Goodrich Control Systems Ltd Fuse arrangement
CN106450926A (en) * 2015-08-10 2017-02-22 张新强 Device for realizing easy plugging and no falling of plug
CN106450936A (en) * 2015-08-10 2017-02-22 张新强 Device for achieving a plug easy to pull out and not liable to peel off

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DE2050125A1 (en) * 1970-10-13 1972-04-20 Moeller J D Optik Process for the production of electrical fuse elements
ZA728054B (en) * 1972-08-10 1973-09-26 Oak Industries Inc Low profile keyboard switch
JPS4959065U (en) * 1972-08-30 1974-05-24
JPS5616015Y2 (en) * 1973-12-25 1981-04-15
JPS56498Y2 (en) * 1973-12-25 1981-01-08
US3962782A (en) * 1974-01-14 1976-06-15 Littelfuse, Inc. Method of making a miniature plug-in fuse
US4040175A (en) * 1974-01-14 1977-08-09 Littelfuse, Inc. Method of making a miniature plug-in fuse with fragile fuse link
US4056884A (en) * 1975-02-08 1977-11-08 Littelfuse, Inc. Method of making a miniature plug-in fuse
US4023265A (en) * 1975-12-12 1977-05-17 Littelfuse, Inc. Method of making a miniature plug-in fuse
US4099321A (en) * 1976-06-02 1978-07-11 Littelfuse, Inc. Method of making a miniature plug-in fuse
US4023264A (en) * 1976-06-21 1977-05-17 Littelfuse, Inc. Method of making miniature plug-in fuses of different fuse ratings
GB2120014B (en) * 1982-04-30 1985-10-02 Lucas Ind Plc Electrical switch
KR910002070B1 (en) * 1982-07-07 1991-04-01 유끼노부 와다나베 Electric fuse
DE3333138A1 (en) * 1983-09-14 1985-03-28 Franz Kirsten Elektrotechnische Spezialfabrik, 6530 Bingen SWITCH BAR ON A DASHBOARD FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES
US4827243A (en) * 1987-11-23 1989-05-02 Cheng Sheng Chuang Improved structure of computer keyboard and circuit board
US5790007A (en) * 1995-03-23 1998-08-04 Sumitomo Wiring Systems, Ltd. Board fuse, and method of manufacturing the board fuse

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US673386A (en) * 1899-12-08 1901-05-07 Jules Courtier Flash-lamp.
US706062A (en) * 1901-11-05 1902-08-05 Harry L Hunt Magazine fuse-box.
US1130485A (en) * 1913-05-03 1915-03-02 Standard Underground Cable Company Electric fuse.
US1672261A (en) * 1927-10-01 1928-06-05 Kahn George Fuse
US1848152A (en) * 1928-11-21 1932-03-08 Signal Engineering & Mfg Co High voltage protective device
US1981735A (en) * 1932-11-29 1934-11-20 British Nat Electrics Ltd Multiple fuse
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US2874248A (en) * 1956-09-11 1959-02-17 Gen Dynamics Corp Multiple fuse
US2934627A (en) * 1957-04-09 1960-04-26 Northrop Corp Electric printed circuit component
US2941059A (en) * 1957-09-16 1960-06-14 Gen Motors Corp Printed circuit type fuse
US2960584A (en) * 1958-06-12 1960-11-15 Honeywell Regulator Co Thermal overload device
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US3500276A (en) * 1967-10-25 1970-03-10 Texas Instruments Inc Electrical fuse and heater units
US3928835A (en) * 1974-04-26 1975-12-23 Castro Genera Jorge Electric switch box
FR2825512A1 (en) * 2001-05-29 2002-12-06 Cooper Technologies Co MAGNETICALLY ACTUATED FUSE STATUS INDICATOR
EP1463083A2 (en) * 2003-03-29 2004-09-29 Goodrich Control Systems Ltd Fuse arrangement
EP1463083A3 (en) * 2003-03-29 2006-02-01 Goodrich Control Systems Ltd Fuse arrangement
CN106450926A (en) * 2015-08-10 2017-02-22 张新强 Device for realizing easy plugging and no falling of plug
CN106450936A (en) * 2015-08-10 2017-02-22 张新强 Device for achieving a plug easy to pull out and not liable to peel off

Also Published As

Publication number Publication date
GB1122793A (en) 1968-08-07
BE679973A (en) 1966-10-25
FR91029E (en) 1968-03-29
GB1130088A (en) 1968-10-09
FR88829E (en) 1967-03-31
SE329661B (en) 1970-10-19
NL6600597A (en) 1967-07-18
BE676469A (en) 1966-08-16
NL6605249A (en) 1966-10-24
BE680194A (en) 1966-10-28
DE1275655B (en) 1968-08-22
FR89940E (en) 1967-09-08
GB1120316A (en) 1968-07-17
NL6605764A (en) 1966-10-31
DE1230879B (en) 1966-12-22
BE683318A (en) 1966-12-29
NL6607975A (en) 1967-12-11
SE345547B (en) 1972-05-29
FR1447659A (en) 1966-07-29
DK126809B (en) 1973-08-20
DE1268708B (en) 1968-05-22
CH456749A (en) 1968-07-31
GB1124206A (en) 1968-08-21
FR89931E (en) 1967-09-08
SE335166B (en) 1971-05-17
DE1259999B (en) 1968-02-01
DE1513578A1 (en) 1970-01-15

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