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1. 发明授权

US3732515A Current limiting fuse including radially disposed fuse elements 失效
标题翻译：电流限制保险丝，包括放射性保险丝元件
公开(公告)号：US3732515A
公开(公告)日：1973-05-08
申请号：US3732515D
申请日：1972-02-25
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D , SHAW W
IPC分类号： H01H85/04 , H01H85/055 , H01H85/08 , H01H85/12
CPC分类号： H01H85/055
摘要： A current limiting fuse having one or more fuse elements disposed for more efficient transfer of heat so that greater electrical current may be continuously conducted through the fuse for a given cross-section of fusible material. Two electrodes or terminals are provided, one of which is cup-shaped or which is tubularly shaped and closed by electrically conducting material at one end. The second electrode projects into the recess created by the cup-shaped electrode and is spaced from it. An electrically insulating support-cover or spacer is provided at the open end of the cup-shaped electrode. This spacer has a central hole or opening to accommodate the projecting electrode or terminal. An array or assembly of fuse elements is disposed upon the enclosed portion of the protruding electrode. Each fuse section is joined at its other end to the inner perimeter of the cup-shaped electrode. The fusible elements may be arranged as spokes on a wheel between a central hub and an outer ring, the central hub being mounted on the inwardly protruding electrode and the outer ring being disposed to make contact with the outer or cup-shaped electrode. The enclosure formed by the cup-shaped electrode, the insulating spacer and the protruding electrode is filled with a granular pulverulent such as quartz sand for electrical arc quenching.
摘要翻译：一个限流熔断器具有一个或多个保险丝元件，用于更有效地传递热量，使得可以通过熔断器连续传导给定横截面的易熔材料的更大的电流。提供两个电极或端子，其中一个电极或端子是杯形的，或者是管状形状并且在一端由导电材料封闭。第二电极突出到由杯形电极产生的凹槽中并与之隔开。在杯状电极的开口端设置有电绝缘的支撑盖或间隔件。该间隔件具有中心孔或开口以容纳突出电极或端子。熔丝元件的阵列或组件设置在突出电极的封闭部分上。每个熔断器部分在另一端连接到杯形电极的内周边。可熔元件可以被布置为在中心轮毂和外圈之间的车轮上的轮辐，中心轮毂安装在向内突出的电极上，并且外圈设置成与外部或杯状电极接触。由杯形电极，绝缘间隔物和突出电极形成的外壳填充有用于电弧淬火的颗粒状粉末如石英砂。

2. 发明授权

US3849755A Current limiting fuse with fuse element with a diamond shaped cutout 失效
标题翻译：带有金刚石形状切割的保险丝元件的当前限制保险丝
公开(公告)号：US3849755A
公开(公告)日：1974-11-19
申请号：US40176573
申请日：1973-09-28
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D , SHAW W
IPC分类号： H01H85/165 , H01H37/76 , H01H85/055 , H01H85/10 , H01H85/12 , H01H85/18 , H01H85/04
CPC分类号： H01H85/055
摘要： An electrical current limiting fuse of the type having fuse elements disposed in a pulverulent arc quenching material for melting after a predetermined level of current has been attained and sustained for a predetermined period of time. A fuse element of the current limiting fuse is in a form of an elongated ribbon of fuse material having a diamond shaped central opening. The diamond shaped central opening provides a pair of parallel current paths near either side of the fuse element. The diamond shaped element has two oppositely disposed angles of approximately 37 1/2 degrees approximately either side edge of the fuse material.
摘要翻译：具有设置在粉状电弧淬火材料中的熔断元件类型的限流熔断器的电流限制熔断器已达到并保持预定电流达到并保持预定时间段。限流熔断器的熔丝元件是具有菱形中心开口的熔丝材料的细长带状的形式。菱形中心开口在熔丝元件的任一侧附近提供一对平行的电流路径。菱形元件具有两个相对设置的角度，约为熔断材料的任一侧边缘的大约37 1/2度。

3. 发明授权

US3849754A Current limiting fuse 失效
标题翻译：当前限制保险丝
公开(公告)号：US3849754A
公开(公告)日：1974-11-19
申请号：US40733573
申请日：1973-10-17
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D , SHAW W
IPC分类号： H01H85/18 , H01H85/16
CPC分类号： H01H85/185
摘要： A fuse structure characterized by a tubular electrically insulating casing having terminal means disposed at opposite ends thereof and having an axially extending, electrically insulating support member or core centrally disposed thereof with a fusible element mounted on the core in a helical path and connected between the terminal means. The core is a segmented member comprising three longitudinal sections, the end sections of which are low temperature electrically insulating members and a center section of which is a high temperature electrically insulating member.
摘要翻译：一种保险丝结构，其特征在于管状电绝缘外壳，其端子装置设置在其相对端并且具有轴向延伸的电绝缘的支撑构件或芯体，其中心地布置有可熔元件，所述可熔元件以螺旋路径安装在所述芯上并连接在所述端子手段。芯部是包括三个纵向部分的分段部件，它们的端部是低温电绝缘部件，其中心部分是高温电绝缘部件。

4. 发明授权

US3801946A Dropout fuse assembly including improved current limiting fuse structures 失效
公开(公告)号：US3801946A
公开(公告)日：1974-04-02
申请号：US3801946D
申请日：1973-03-22
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D
IPC分类号： H01H85/36 , H01H31/12 , H01H37/76 , H01H85/042 , H01H85/22 , H01H71/10
CPC分类号： H01H31/127
摘要： A current limiting fuse structure including a latch tripping means or device disposed within the housing of said fuse structure or assembly. The latch tripping device comprises a spring-loaded plunger which when actuated moves through an end ferrule of the fuse housing to thereby trip a latch in the fuse assembly which normally latches the fuse housing in place in one of the fuse assembly terminals. Two operating conditions must both exist simultaneously before the plunger is actuated to unlatch the fuse housing. First, a portion of current sensitive fusible wire disposed in the tripping device to prevent the plunger therein from moving into a tripping position must be blown to thereby allow the plunger to move, and second, the current flowing through the fuse must be substantially zero so that no arc is maintained between the fuse housing ferrule as it swings or moves away from the latching assembly and the stationary part of the overall fuse assembly. This is done by providing an electromagnet in series circuit relationship with the main fuse element so that when the current through the main fuse element is zero, the current through the electromagnet is also zero, and, consequently, an override means which normally prevents the plunger from moving into a position to disengage the latch is actuated. The override means may comprise a springloaded shutter which is held in a first position by the electromagnet when current flows through the electromagnet, but which moves to a second position when the current ceases to flow through the electromagnet thus freeing the plunger to engage in an unlatching operation. In another example, the electromagnet may cause contacts to close when deenergized. These contacts are connected in series circuit relationship with the previously described fusible wire which, in turn, holds the plunger in place. When the contacts are closed, the fusible wire blows or melts, thus freeing the plunger for an unlatching operation.

5. 发明授权

US3825871A Electric fuse with trip device 失效
标题翻译：电动保险丝
公开(公告)号：US3825871A
公开(公告)日：1974-07-23
申请号：US41769373
申请日：1973-11-20
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D
IPC分类号： H01H85/04 , H01H31/12 , H01H37/76 , H01H85/02 , H01H85/18 , H01H85/22 , H01H85/30 , H01H85/36 , H01H85/38 , H01H85/50 , H01H89/00 , H01H71/20
CPC分类号： H01H31/127
摘要： A current limiting fuse structure characterized by a tubular, electrically insulating casing having spaced terminals thereon, one end of the casing being pivotally mounted on first terminal means and the other end of the casing being releasably mounted on second terminal means, a first fusible element within the casing and extending between the spaced terminals, trip means for unlatching the other end of the casing and comprising a plunger and a delayed explosive charge for driving the plunger against the second terminal means for releasing the other end of the casing from a second terminal means upon ignition of the delayed explosive charge, and a second fusible element extending between the terminal at said one end of the casing and the delayed explosive charge.
摘要翻译：一种限流熔断器结构，其特征在于管状电绝缘壳体，其上具有间隔开的端子，所述壳体的一端可枢转地安装在第一端子装置上，并且壳体的另一端可释放地安装在第二端子装置上，第一可熔元件壳体并且在间隔开的端子之间延伸，用于解锁壳体的另一端的跳闸装置包括柱塞和用于将柱塞驱动抵靠第二端子装置的延迟爆炸装置，用于将壳体的另一端从第二终端装置并且在所述壳体的所述一端处的所述端子与所述延迟的炸药之间延伸的第二可熔元件。

6. 发明授权

US3801947A Electric fuse with improved casing 失效
标题翻译：具有改进外壳的电保险丝
公开(公告)号：US3801947A
公开(公告)日：1974-04-02
申请号：US3801947D
申请日：1971-02-16
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D , CAMERON F
IPC分类号： H01H85/165 , H01H85/14
CPC分类号： H01H85/165
摘要： An electric fuse structure comprising a generally tubular electrically insulating or dielectric casing in which a fusible element is disposed and which is substantially filled with a finely divided or pulverulent arc extinguishing material, such as quartz sand. The casing is coated on its inner surface with a thin layer of ceramic electrically insulating material. The ceramic material hardens in place to form a relatively thin insulating liner.
摘要翻译：一种电熔丝结构，其包括通常管状的电绝缘或电介质外壳，其中设置可熔元件，并且其基本上填充有细碎或粉状的灭弧材料，例如石英砂。外壳在其内表面上涂覆有一层薄薄的陶瓷电绝缘材料。陶瓷材料固化到位以形成相对薄的绝缘衬垫。

7. 发明授权

US3715698A Current limiting fuse 失效
公开(公告)号：US3715698A
公开(公告)日：1973-02-06
申请号：US3715698D
申请日：1971-02-16
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D
IPC分类号： H01H85/00 , H01H37/76 , H01H85/046 , H01H85/055 , H01H85/08 , H01H85/10 , H01H85/165 , H01H85/47 , H01H85/02
CPC分类号： H01H85/055 , H01H85/47
摘要： A current limiting fuse element comprising a fuse link or portions of reduced cross section of such a relatively small area or size that they would normally be unable to support themselves alone. The fuse element is intimately bonded or attached to a relatively larger rigid dielectric mass by methods, such as printing, vacuum deposition or etching, so that the larger dielectric mass provides the structural support for the relatively thin current limiting regions or portions and also assists in removing heat from the fuse element during both normal operation and also during fusing of the fuse element. The fuse element and its dielectric support may be used independently or may be used as the fuse element in a cartridge-type fuse where the entire fuse element is disposed in a casing and embedded in a pulverulent, arc quenching material, such as sand, which may be provided to assist in arc extinction upon fusing of the fuse element and to absorb the heat during fusing. In addition, the relatively rigid, dielectric mass may be adapted to accommodate or receive a heat transferring means through which fluid may flow. Heat generated during normal operation of the fuse or during a fusion operation may be removed by the moving fluid.

8. 发明授权

US3829808A Fuse housing construction utilizing extruded terminals and process for making same 失效
标题翻译：使用挤出端子的熔断器结构及其制造方法
公开(公告)号：US3829808A
公开(公告)日：1974-08-13
申请号：US33246073
申请日：1973-02-14
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D , CAMERON F , VONDRACEK C
IPC分类号： H01H85/045 , H01H85/02
CPC分类号： H01H85/0456
摘要： An electrical fuse structure having electrically conducting Tshaped terminals. Two T-shaped terminals are disposed in spaced portions of an electrically insulating box-shaped fuse housing subsection so that part of the top or cross bar portion of the Tshaped terminal is positioned between an internal set of ribs and an inner portion of a housing subsection end wall. A similar fuse housing subsection is disposed over the remaining part of the top portion of the T-shaped member to enclose it. The housing subsections are secured in a complementary arrangement by bolts or rivets disposed in appropriate holes in the two subsections. The two subsections are thus joined to form a completely enclosed box in which the cross bar portions of the terminals are securely enclosed within the box at either end thereof, and with only the vertical or stem portions of the T-shaped terminals extending outwardly through openings in the ends of the box. Sand or other pulverulent arc quenching material is introduced into the inner chamber of the fuse housing through a hole drilled in the cross bar portion of one terminal which communicates with the inner chamber of the box and with the outside of the fuse housing through a suitable aligned opening in the fuse housing. After sand has been introduced into the fuse housing, the hole is sealed with a suitable plug. Fuse elements extend between the enclosed bar portions of the terminals within the enclosed chamber of the fuse housing. Ther fuse elements are surrounded by the pulverluent sand or crystalline material.
摘要翻译：一种具有导电T形端子的电熔丝结构。两个T形端子设置在电绝缘箱形熔断器壳体子部分的间隔部分中，使得T形端子的顶部或横杆部分的一部分位于内部一组肋和内部部分之间住宅小区端墙。类似的保险丝壳体部分设置在T形构件的顶部的剩余部分上以包围其。通过在两个部分中设置在适当的孔中的螺栓或铆钉将壳体子部分固定在互补的布置中。这两个部分因此被连接以形成完全封闭的盒子，其中端子的横杆部分在其任一端牢固地封闭在箱体内，并且只有T形端子的垂直或杆部分向外延伸穿过开口在盒子的末端。沙子或其他粉末灭弧材料通过钻孔在一个端子的横杆部分中的孔引入到熔断器壳体的内腔中，该孔与箱的内室连通，并且通过合适的对准在保险丝外壳中打开。将沙子引入保险丝外壳后，用适当的塞子密封孔。保险丝元件在保险丝壳体的封闭腔室内的端子的封闭杆部分之间延伸。热熔丝元件被微粉砂或结晶材料包围。

9. 发明授权

US3810063A High voltage current limiting fuse including heat removing means 失效
标题翻译：高电流限流保险丝，包括除热装置
公开(公告)号：US3810063A
公开(公告)日：1974-05-07
申请号：US22936272
申请日：1972-02-25
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D
IPC分类号： H01H85/47 , H01H85/04
CPC分类号： H01H85/47
摘要： A current limiting fuse structure comprising a plurality of elements of fusible material adapted for higher voltage circuit operation. Each fuse element has a plurality of areas of reduced cross-section to facilitate the generation of a plurality of arclets at the time of melting to limit electrical current in the circuit to be protected by the fuse during the blowing of the fuse. The fuse elements and/or adjacent pulverulent arc quenching material are enclosed by a housing or casing which may be formed from ceramic material. Edges of each fuse element are disposed in intimate physical or structural contact with the associated casing to facilitate the removal or transfer of heat which may be generated in the areas of reduced cross section. The material from which the casing is made is such a composition or type that is a relatively good electrical insulator so as to withstand the voltage of the protected circuit once the fuse has blown and is also a good conductor of heat so as to efficiently remove heat from the enclosed fuse elements. The casing may be formed from a plurality of sections which may be joined to each other and the terminals of the fuse by high temperature epoxy cement. A metallic heat exchanger or heat sink may be assembled or disposed in intimate contact with an outside surface of the casing either by bolting or by using a suitable bonding material cement so that the heat which may be generalized in the enclosed fuse and which may be conducted away from the fuse elements by the casing may be further conducted to the air or similar environment through the associated heat exchanger.
摘要翻译：一种限流熔断器结构，包括适用于较高电压电路操作的多个可熔材料元件。每个保险丝元件具有多个减小横截面的区域，以便于在熔化时产生多个圆弧，以限制在保险丝熔断过程中被保险丝保护的电路中的电流。保险丝元件和/或相邻的粉末灭弧材料由可由陶瓷材料形成的壳体或壳体包围。每个保险丝元件的边缘设置成与相关联的壳体紧密的物理或结构接触，以便于在减小横截面的区域中产生的热量的去除或转移。制造外壳的材料是一种相对较好的电绝缘体的组合物或类型，以便一旦熔断器熔断就能承受保护电路的电压，并且也是良好的热导体，从而有效地除去热量从封闭的保险丝元件。壳体可以由可以通过高温环氧树脂粘合剂彼此连接的多个部分和熔断器的端子形成。金属热交换器或散热器可以通过螺栓连接或通过使用合适的粘合材料水泥与壳体的外表面紧密接触而组装或设置，使得可以在封闭的保险丝中被推广并且可以进行的热通过壳体远离保险丝元件可以通过相关联的热交换器进一步传导到空气或类似环境。

10. 发明授权

US3781747A Current limiting fuse including improved fuse element 失效
标题翻译：电流限制保险丝，包括改进的保险丝元件
公开(公告)号：US3781747A
公开(公告)日：1973-12-25
申请号：US3781747D
申请日：1972-05-18
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： BLEWITT D , AYERS D
IPC分类号： H01H85/10
CPC分类号： H01H85/10
摘要： A current limiting fuse including an improved fuse element. The fuse element or link includes portions or regions of reduced cross-section which melt during overload to form a series of voltage arclets. The fusible material of the fuse element between notched regions of reduced cross-section is uniquely shaped to take advantage of electrical potential distribution within it, and the natural tendency of electrical current to flow from notch to notch in specified paths of least resistance. The fuse link has a predetermined geometric shape to accommodate the flow of current in an efficient manner and to eliminate those portions of the fuse link which conduct little or no electrical current during normal operation.
摘要翻译：一种限流熔断器，包括一个改进的保险丝元件。保险丝元件或连接件包括横截面减小的部分或区域，其在过载期间熔化以形成一系列电压圆弧。保险丝元件的易熔材料在截面减小的缺口区域之间是独特的形状，以便利用其内的电位分布，以及电流从陷波流到缺口的特定路径中具有最小电阻的自然趋势。熔断体具有预定的几何形状以便以有效的方式适应电流流动，并且消除在正常操作期间传导很少或没有电流的熔断体部分。

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