Abstract: Apparatus, methods, and computer-readable media are disclosed herein for orbital angular moment capability in millimeter wave and higher frequency bands. An example method for wireless communication at a first communication device includes transmitting, to a second communication device, OAM capability information indicating a capability to receive an OAM waveform. Additionally, the example method includes receiving one or more OAM transmissions from the second communication device, the one or more OAM transmissions based on the OAM capability information.

Abstract: A fuse including a fuse body having first and second end faces at opposing first and second longitudinal ends thereof, each of the first and second end faces having at least one notch formed therein, a fusible element extending through the fuse body and having a first end bent over the first end face and disposed within the at least one notch in the first end face and a second end bent over the second end face and disposed within the at least one notch in the second end face, and a first endcap disposed on the first longitudinal end of the fuse body and a second endcap disposed on the second longitudinal end of the fuse body, wherein the first and second endcaps flatly abut the first and second end faces without interference from the fusible element.

Abstract: Disclosed are a fuse pad, a printed circuit board having the fuse pad, and a method of manufacturing the printed circuit board. The fuse pad includes a first pad provided at one side of a fuse, a second pad provided at an opposite side of the fuse, and a measurement pad electrically connected to the second pad to measure whether the fuse is detached.

Abstract: Methods, systems and computer readable media for generating hardware and software upgrade recommendations for a managed network of devices are described.

Abstract: A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having threads. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in either female or male couplings.

Abstract: Fuse state indicators include temperature responsive elements adapted to visually display a number of different fuse states. The displays may include distinct colors and markings that are made visible or concealed from view based on temperature ranges that the fuse is exposed to in use. Various temperature sensitive elements and various markings are disclosed to convey at least three distinct fuse states to interested persons at the location of the fuse.

Abstract: A fuse structure includes a casing, a fuse component and a light emitting element having pins. The casing includes a top plate, a containing space disposed below the top plate and two openings formed on the top plate. The fuse component includes two electrically conductive plates and a fuse filament, and each electrically conductive plate has a conducting portion protruded from an upper end of the electrically conductive plate, and the conducting portions are inserted into the two openings respectively. The top plate includes two compressing portions protruded from the bottom of the top plate and arranged alternately with the two conducting portions, such that an interval is formed between an external edge of each compressing portion and an internal edge of each corresponding conducting portion, and the pins of the light emitting element are clamped in the interval.

Abstract: Electrical fuse indicators, systems and methods for detecting when fuses enter an open state involve a wireless identification element, which alerts a communication unit that the fuse has entered an open state. The wireless identification device may include an antenna. The antenna may be in contact with a fuse element, such that opening of the fuse element renders the antenna inoperable. Alternatively the antenna may be connected to the fuse element in such a manner that opening of the fuse element alters the frequency on which the antenna transmits. A logic port may also be used to detect the operational state of a fuse. Use of such indicators is compatible with existing infrastructure.

Abstract: A fuse includes a fuse state indicator on the exterior surface of the fuse body. The fuse state indicator includes an electrically conductive element electrically connected to and extending between the terminal elements. A temperature sensitive element proximate and in thermal contact with the electrically conductive element includes material capable of changing color when heated to a predetermined transition temperature to form a mark on the temperature sensitive element. The fuse state indicator forms a first mark on the temperature sensitive element when heat from the electrically conductive element transfers to the temperature sensitive element in response to a first overcurrent condition, and forms a second mark, distinct from the first mark, on the temperature sensitive element when heat from the electrically conductive element transfers to the temperature sensitive element in response to a second overcurrent condition distinct from the first overcurrent condition.

Abstract: A fuse assembly capable of indicating whether the fuse is blown or not includes a fuse body formed therein with an accommodating space. The accommodating space is provided with two conductive terminals connected to each other via a metallic fuse. A light-emitting diode is inserted into an accommodating hole of the fuse body, thereby electrically connecting two electrodes of the light-emitting diode to the two conductive terminals. By the above arrangement, the light-emitting diode can be lighted up when the fuse body is blown.

Abstract: A fuse comprising a fuse body having ferrules at opposing ends, a fuse state indicator located on the surface of the fuse body wherein the fuse state indicator may be temperature sensitive or voltage sensitive and a wire extending from one ferrule to the other ferrule wherein the wire is positioned along the surface of the fuse body. The fuse state indicator senses heat generated by the wire or voltage flowing through the wire.

Abstract: A fuse seat having light-emitting module includes an insulating body, two electricity-conducting pieces and a light-emitting module. The insulating body is arranged with an accommodating space, in which two electricity-conducting pieces are fixed respectively. A fuse is plugged into the accommodating space and connected conductively to the electricity-conducting pieces. The light-emitting module is hidden in the insulating body and is connected electrically to the electricity-conducting pieces, thus a cost-saving effect is thereby achieved.

Abstract: A fusible link unit includes a housing and two fuse circuit bodies overlapped with each other and received in the housing in a thickness direction of the housing. A coupling plate and terminals connected to each other via fuse elements integrally forms the fuse circuit body. An opening is formed on an outer wall of the housing. The housing includes a cover made of transparent material and having a U-shaped section for covering the opening. The cover integrally includes a projection projecting to an inside of the housing on a sidewall of the cover. The projection includes a reflecting wall sloping on the sidewall in a thickness direction of the housing 7.

Abstract: A fuse module with an indicating capability allows a plug having pins to be inserted therein. The fuse module includes a casing, an electrical conductive terminal, an insulator and a light-emitting unit. The bottom of the casing is provided with through holes. The electrical conductive terminal is received in the casing. The electrical conductive terminal includes conductive pieces for allowing the pins to be inserted therein and a connecting arm for connecting the conductive pieces. The conductive pieces are arranged to correspond to the through holes. The insulator is fixed to the connecting arm. The light-emitting unit is provided between the insulator and the casing and is electrically connected with the conductive pieces. When the current is overloaded, the connecting arm will be melted to break, so that the light-emitting unit will be lighted up to generate an indicating effect.

Abstract: A fuse capable of indicating whether the fuse is blown or not includes a fuse body formed therein with an accommodating space. The accommodating space is provided with two electrical-conductive terminals connected to each other via a metallic fuse. A light-emitting diode is inserted into the accommodating hole of the fuse body, thereby electrically connecting two electrodes of the light-emitting diode to the two electrical-conductive terminals. Via the above arrangement, the light-emitting diode can be lighted up when the fuse body is blown.

Abstract: A fuse seat having light-emitting module of hidden type is to provide a fuse plugged therein conductively. The fuse seat includes an insulating body, two electricity-conducting pieces and a light-emitting module. The insulating body is arranged an accommodating space, in which two electricity-conducting pieces are fixed respectively. The fuse is plugged into the accommodating space and connected conductively to the electricity-conducting pieces. The light-emitting module is hidden in the insulating body and is connected electrically to the electricity-conducting pieces respectively, thus that a cost-saving effect is thereby achieved.

Abstract: Electrical fuse indicators which may be used to diagnose and identify a fault state or failure mode of the electrical fuse include in various exemplary embodiments, indicator materials such as a reactive material, which are incorporated into various fuse indicator devices to cooperate with a visually perceptible indicator portion or layer to indicate the failure mode or fault state if the electrical fuse.

Abstract: One embodiment of the present invention provides a fuse having opened-fuse indication, which places two or more coils or conductors in parallel and in thermal contact with an indicating material. The multiple conductors allow a lower level of current to produce sufficient heat or sufficient electrical resistance to transform the indicating material. The multiple conductors can also be made of a reduced diameter, resulting in surge protection at a lower device temperature. The multiple conductor indicator in an embodiment includes a base material. First and second conductors contact the base material. An indicating material thermally couples to the first and second conductors. The indicating material can be on the inside or outside of the fuse body. If on the outside, the body can define a recess, wherein the indicator resides within the recess. The indicator can operate with fuses and other types of circuit protection devices.

Abstract: A fuse component with an optical indicator, which has a first terminal (2) and a second terminal (3) and also a fusible link (4), which connects the terminals (2) and (3) in an electrically conducting manner. Connected in parallel with the fusible link (4) is at least one LED (8), which indicates the failure of the fuse if the fusible link (4) is interrupted. Preferably two LEDs are connected in antiparallel with the fusible link.

Abstract: A circuit interrupter with end-of-life protection has four components: 1) a control circuit to activate an electromagnetic unit upon detecting a predetermined condition; 2) a fuse coupled between the control circuit and the power supply; 3) an end life sensing circuit coupled to the control circuit; and 4) an end life indicating circuit coupled to the end life sensing circuit and the power supply. The end life sensing circuit includes a light emitting device and a light sensitive device controlled by the light emitting device. The end life indicating circuit includes a visual indicator to indicate that the circuit interrupter reaches the end of its life. Another circuit interrupter with end-of-life protection has three components: 1) a control circuit to activate an electromagnetic unit upon detecting a predetermined condition; 2) a fuse coupled between the control circuit and the power supply; and 3) an end life sensing and indicating circuit coupled to the control circuit.

Abstract: A circuit protection device includes a case having a transverse top portion provided with a central receiving opening and two locating holes, and two wall portions downward extended from a middle part of the transverse top portion to define a receiving space therebetween for communicating with the receiving opening and locating holes; a cutout unit having two conducting plates connected via a bridge portion, and being inserted in the receiving space with the conducting plates engaged with the locating holes and partially projected from two longitudinal edges of the wall portions; and a bipolar LED mounted in the receiving opening and having a conducting portion in contact with two pins of the cutout unit, and a light source. In an overcurrent state, the bridge portion is burned out, and current flows through the bipolar LED for the same to emit light as a cutout warning signal.

Abstract: A protective sleeve for a fuse connection includes an insulative sleeve body having first and second body portions adapted to provide a water-resistant seal at opposite ends of the fuse connection and a substantially transparent window disposed between the first and second body portions. The window permits a visual indicator of the fuse of the fuse connection to be visible therethrough.

Abstract: One embodiment of the present invention provides a fuse having opened-fuse indication, which places two or more coils or conductors in parallel and in thermal contact with an indicating material. The multiple conductors allow a lower level of current to produce sufficient heat or sufficient electrical resistance to transform the indicating material. The multiple conductors can also be made of a reduced diameter, resulting in surge protection at a lower device temperature. The multiple conductor indicator in an embodiment includes a base material. First and second conductors contact the base material. An indicating material thermally couples to the first and second conductors. The indicating material can be on the inside or outside of the fuse body. If on the outside, the body can define a recess, wherein the indicator resides within the recess. The indicator can operate with fuses and other types of circuit protection devices.

Abstract: A multiple fused junction with blown fuse indication which generally includes a main body, a fuse connected to the main body and a switch disposed within the main body. The main body has multiple cable ports extending outwardly therefrom. At least one of the ports is adapted for electrical connection with a feeder cable and another of the ports is adapted to receive a fuse. The fuse is removably connected to the fuse port of the main body and has an indicator rod movably disposed therein, which protrudes from an axial end of the fuse into the main body upon electrical interruption of the fuse. The switch is disposed within the main body adjacent the fuse port and is activated by the indicator rod of the fuse upon protrusion of the rod from the fuse to provide indication of electrical interruption of the fuse.

Abstract: An electrical fuse and method therefor includes a protective body, terminal elements extending from said protective body, and a primary fuse element extending within said protective body and electrically connected between the terminal elements, and an identification element configured to transmit a wireless signal to a remote device for determining an operational state of said primary fuse element.

Abstract: A cable limiter includes a main body having a cavity. The cavity of the main body is structured to receive a replaceable fusible element. An annunciator is housed by the main body. The annunciator is structured to annunciate status of the replaceable fusible element.

Abstract: A fuse state indicator for a fuse including a cylindrical fuse body and a primary fuse element therein, includes an extension member, a transparent lens, a combustible substance adjacent the lens, a secondary fuse link adjacent said combustible substance, and a curved backing layer adjacent said secondary fuse link. Said backing layer is at least partially concealed by said combustible substance when viewed through said transparent lens before the fuse has opened, and said backing layer maintains said secondary fuse link in position with respect to said combustible substance.

Abstract: Herein provided is a method and apparatus that allows a pre-existing fuse housing to be easily modified and adapted to include a blown fuse indicator light thereon. Whereby when the fuse housing and light in combination are installed within an electrical circuit and if the fuse is no longer functional, the light will automatically illuminate so as to visually notify a user that the fuse needs to be replaced. Also, any suitable light source may be used, such as an LED, a cartridge type having end contacts, a long lasting reusable incandescent lamp, fiber optics, neon, etc.

Abstract: The present invention relates to a mobile phone including a main printed circuit board. A first connector and a second connector are welded respectively onto a first predetermined location and a second predetermined location of the main printed circuit board, wherein a first power supply and a second power supply are provided respectively by the first connector and the second connector. The main printed circuit board includes a first portion corresponding to a keypad module and a second portion corresponding to an LCM module. The mobile phone also provides a holder, wherein a space is included in the holder to accommodate the LCM module. A slit is formed at a predetermined location of the holder. The mobile phone further includes a secondary printed circuit board carrying a plurality of LEDs to provide a back light source. The secondary printed circuit disposed within the aforementioned slit includes a first contact point and a second contact point.

Abstract: A plug-in fuse 200 comprises a body 201 with side indented portions 203 which allow secure gripping by the thumb and finger of a hand. The side indented portions define upper and lower extended portions 319, 321 allowing insertion and retraction forces to be exerted on the fuse. The improved body shape allows quick and easy insertion of the fuse in high-density fuse holders. A thermally-degradable material 323 in close proximity to the burnout portion of the fuse element provides visual and/or tactile indication of fuse condition.

Abstract: An apparatus for diagnosing a tripped fuse is disclosed. The apparatus employs a chemical light installed at an upper portion of the fuse housing. A system for activating the chemical light is installed at the lower end of the housing. The activation system activates the light when an excessive current melts a soft iron element.

Abstract: The impact signaling system (9) is used in a high-voltage protective device and has a housing (13), a spring (16) which is arranged in the housing (13) and has a moveable end, an actuator (17) which can be passed out of the housing (13) and interacts with the moveable end of the spring (16), a high-resistance resistor wire (12) which is connected in parallel with a fusible wire of the protective device, and a holder which absorbs the prestress of the spring (16). The holder contains a section of the high-resistance resistor wire (12) which is in the form of a winding (18) and is passed at least once around the moveable end of the spring (16) in order to form the prestress, and which is at least partially in thermally conductive contact with the material of the activator (20). Above a limit temperature, the activator (20) lifts, for example by destruction of the winding (18) or by melting through, the holder and activates the impact signaling system (9) by reducing the load on the spring (16).

Abstract: A fuse indicator is disclosed for indicating the status of a fuse. The fuse indicator includes an electrically conductive material that extends between conductive ends of a fuse and undergoes a visible change in appearance upon being subjected to electrical current above a threshold. The fuse indicator also includes a layer of indicator material that becomes exposed beneath the electrically conductive material when the fuse indicator is subjected to electrical current above the threshold. The fuse indicator also includes adhesive for maintaining contact between the electrically conductive material and the layer of indicator material.

Abstract: An apparatus for diagnosing a tripped fuse is disclosed. The apparatus employs a chemical light installed at an upper portion of the fuse housing. A system for activating the chemical light is installed at the lower end of the housing. The activation system activates the light when an excessive current melts a soft iron element.

Abstract: One embodiment of the present invention provides a fuse having opened-fuse indication, which places two or more coils or conductors in parallel and in thermal contact with an indicating material. The multiple conductors allow a lower level of current to produce sufficient heat or sufficient electrical resistance to transform the indicating material. The multiple conductors can also be made of a reduced diameter, resulting in surge protection at a lower device temperature. The multiple conductor indicator in an embodiment includes a base material. First and second conductors contact the base material. An indicating material thermally couples to the first and second conductors. The indicating material can be on the inside or outside of the fuse body. If on the outside, the body can define a recess, wherein the indicator resides within the recess. The indicator can operate with fuses and other types of circuit protection devices.

Abstract: The impact signaling system (9) is used in a high-voltage protective device and has a housing (13), a spring (16) which is arranged in the housing (13) and has a moveable end, an actuator (17) which can be passed out of the housing (13) and interacts with the moveable end of the spring (16), a high-resistance resistor wire (12) which is connected in parallel with a fusible wire of the protective device, and a holder which absorbs the prestress of the spring (16). The holder contains a section of the high-resistance resistor wire (12) which is in the form of a winding (18) and is passed at least once around the moveable end of the spring (16) in order to form the prestress, and which is at least partially in thermally conductive contact with the material of the activator (20). Above a limit temperature, the activator (20) lifts, for example by destruction of the winding (18) or by melting through, the holder and activates the impact signaling system (9) by reducing the load on the spring (16).

Abstract: This inventive end-of-live indicator is useful to provide notice of the degree of exhaustion of a consumable component of a device or appliance. The end-of-live indicator provides an indicator circuit, which upon receiving an electrical signal from a sensing circuit causes polarization of a simple transistor, thereby facilitating a current flow in the indicator circuit sufficient to exceed the current flow capacity of a fuse link. By exceeding the current flow capacity of the fuse link the current potential of the indicator circuit becomes zero. A plurality of indicator circuits permits indication of a plurality of degrees of exhaustion of the consumable component.

Abstract: A fuse indicator is disclosed for indicating the status of a fuse. The fuse indicator includes an electrically conductive material that extends between conductive ends of a fuse and undergoes a visible change in appearance upon being subjected to electrical current above a threshold. The fuse indicator also includes a layer of indicator material that becomes exposed beneath the electrically conductive material when the fuse indicator is subjected to electrical current above the threshold. The fuse indicator also includes adhesive for maintaining contact between the electrically conductive material and the layer of indicator material.

Abstract: The present invention provides a blown fuse indicator. More specifically, the present invention provides a blown fuse indicator adapted for use with multiple element fuses, which provides a perceivable distinction between a blown fuse due to a current overload and a blown fuse due to a short circuit. To this end, in one embodiment of the present invention, a diagnostic blown fuse indicator is provided for a fuse having both a short circuit element and a current overload element. The indicator includes a short circuit indicator in electrical communication with the short circuit element, wherein the short circuit indicator provides visual indication of a short circuit condition. The indicator also includes a current overload indicator in electrical communication with the current overload element, wherein the current overload indicator provides visual indication of an overload condition.

Abstract: A fuse indicator is disclosed for indicating the status of a fuse. The fuse indicator includes an electrically conductive material extending between conductive ends of a fuse. The material undergoes a visible change in appearance upon being subjected to electrical current above a threshold. The fuse indicator further includes a layer of indicator material that becomes exposed beneath the electrically conductive material when the fuse indicator is subjected to electrical current above the threshold. An adhesive means maintains contact between said fuse indicator and the fuse.

Abstract: An electric fuse is comprised of a tubular fuse casing formed of an electrically insulating material. A first conductive component is attached to a first end of the casing and a second conductive component is attached to a second end of the casing. A first conductive path is formed through the tube between the first and second conductive components. The conductive path includes a fusible element having a first resistance. A second conductive path is formed along the exterior of the tubular fuse casing. The second conductive path is in parallel to the first conductive path and has a second resistance greater than the first resistance. The second conductive path includes an indicator component. The indicator component is comprised of first layer comprised of a colored material, and a second layer comprised of an electrically conductive material deposited onto the first layer. The second layer has a region of increased resistance.

Abstract: A fuse device includes two prongs secured in a casing, and a fuse member secured between the prongs. An indicating device is electrically coupled to the prongs or to the fuse member for generating a warning or an indicating signal when the fuse member is broken. The indicating device includes a pair of conductor blades electrically coupled to the prongs, and an indicating member, such as a light device or a buzzer, secured between the conductor blades for generating an indicating light or a warning sound when the fuse member is broken.

Abstract: An opened fuse indicator includes a substantially transparent lens, a transparent base, and a dark colored backing layer. A sputtered metal layer is formed on the transparent base to provide a light-colored electrically conductive surface including a narrowed portion that forms a fuse link that is visible against the dark background of backing layer when viewed through the transparent lens. The conductive sputtered metal layer is electrically connected to a pair of fuse terminals to form a secondary fuse circuit in parallel with a main fuse circuit. Current directed through the secondary fuse circuit after the main circuit opens melts the sputtered metal layer so that it is no longer visible against the dark colored backing layer and the fuse is thereby indicated as opened.

Abstract: A fuse indicator is disclosed for indicating the status of a fuse. The fuse indicator includes a conductive material adapted to extend between conductive ends of a fuse, and adapted to undergo a visible change in appearance upon being subjected to electrical current above a threshold. The fuse indicator further includes an adhesive for maintaining contact between the conductive material and the conductive ends of the fuse.

Abstract: A blown fuse commutator strip which is removably attachable to a pre existing plug-in type fuse, with the commutator strip having an indicator thereon which will notify the user that the fuse has blown and needs replacing.

Abstract: An electrostatic discharge ground path for a fuse installable in a fuse holder includes an area of metallization on at least one insulating surface of the fuse extending from an exposed surface of the fuse to a contact area within the fuse holder.

Abstract: A fuse for interfacing electrical current with electronic components and for shielding the electronic components from potentially damaging electrostatic discharge. The fuse includes a fuse body having an edge and first and second electrical contacts. A fuse indicator is connected to one electrical contact and a fuse element extends between the indicator and the other contact for providing a conduit for operating current to reach the interfaced electronic components. A window is disposed on the edge of the fuse body and positioned over the fuse indicator. Sealant is disposed between the window edge and the fuse body edge to prevent the accumulation of air therebetween and, thereby, preventing such accumulated air from functioning as a transmission medium through which an electrostatic discharge can travel and reach the electronic components.

Abstract: A fuse indicator is disclosed for indicating the status of a fuse. The fuse indicator includes a conductive material adapted to extend between conductive ends of a fuse, and adapted to undergo a visible change in appearance upon being subjected to electrical current above a threshold. The fuse indicator further includes an adhesive for maintaining contact between the conductive material and the conductive ends of the fuse.

Abstract: The fusible element of an electrical fuse is made from carbon glass. The carbon glass melts and pulls apart safely when the fuse blows, so the fusible element normally does not need an enclosure. The carbon glass glows and emits light when current flowing therethrough approaches the fuse's current-carrying capacity, thereby acting as a current sensor and a warning indicator that the fuse is about to blow.

Abstract: A device for indicating the conducting state of a fuse includes a heat generating material for generating heat in response to an electrical input and adapted to be coupled electrically in parallel with a fuse, and a temperature responsive material thermally coupled to the heat generating material for providing a visually discernable response if heated above a threshold temperature by the heat generating material.