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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8143991 | Current and temperature overloading protection device A current and temperature overload protection device has a brace, a thermal sensing contact, a solder layer, two ports and two resilient elements. The thermal sensing contact, the solder layer, the two ports and the two resilient elements are mounted on the brace, w... | 03/27/2012 |
| 7911314 | Electric circuit with thermal-mechanical fuse A electric circuit includes a connection to a current source, an electric load, and a thermal-mechanical fuse which, in the case of failure at an excessive heat emission, interrupts the current supply to the load, which is effectuated by a feeder in which is arrange... | 03/22/2011 |
| 7864024 | Electronic assembly having spring-loaded contact bridge with fuse function An electronic assembly includes an electronic circuit on a circuit board. The circuit includes a conductor path on the circuit board, and at least one SMD component, electronic component and/or electromechanical component that is mounted on the circuit board and con... | 01/04/2011 |
| 7400225 | Electrical distribution device including protection for overheating conditions An electrical distribution device that includes a terminal for providing a connection to a first conductor, a spring mechanism having a first end that is electrically connected to the terminal, and a second conductor electrically connected to one or more internal co... | 07/15/2008 |
| 7385474 | Thermosensor, thermoprotector, and method of producing a thermosensor In the thermosensor of the invention, both ends 21, 22 of an elastic member 2 are fixed to a body 1 in a state where the elastic member 2 is compressed in a longitudinal direction, to form the elastic member 2 into a convex curved ... | 06/10/2008 |
| 7362208 | Thermal pellet type thermal fuse In order to prevent erroneous operation caused by shrinking of a thermal pellet due to sublimation or softening of the thermal pellet when current is applied, a thermal pellet type thermal fuse includes a metal casing, a first lead and a second lead leading out from... | 04/22/2008 |
| 7345570 | Thermoprotector In the thermoprotector of the invention, an elastic movable conductor 3 is placed between stationary electrodes 21, 22 opposed in an insulation housing 1. One end of the elastic movable conductor 3 is fixed to one stationary electrode ... | 03/18/2008 |
| 7330098 | Thermal fuse employing a thermosensitive pellet There is provided a thermal fuse employing a thermosensitive pellet that reacts to an operating temperature with limited variation, and operates with high precision and hence high reliability. To achieve this, the thermal fuse includes a switching function member in... | 02/12/2008 |
| 7323966 | Thermal pellet incorporated thermal fuse and method of producing thermal pellet A thermal fuse incorporating a thermal pellet has its operating temperature, or heat distortion temperature, adjusted and the thermosensitive material of the pellet avoids deformation, modification or similar deficiency if it is exposed to a severe external environm... | 01/29/2008 |
| 7323965 | Thermal fuse using thermosensitive material In the present invention, a physical and chemical property of thermosensitive material is noted in selecting and using thermosensitive material to provide a noble and improved thermal fuse using thermosensitive material. To achieve this object, the present thermal f... | 01/29/2008 |
| 7281304 | Method for fabricating a film bulk acoustic resonator A method for fabricating a film bulk acoustic resonator (FBAR) includes depositing a dielectric layer on a substrate, providing a sacrificial layer on part of the dielectric layer; providing a bottom electrode on part of the sacrificial layer on part of the dielectr... | 10/16/2007 |
| 7173510 | Thermal fuse and method of manufacturing fuse A thermal fuse includes a fusible alloy including tin, a couple of lead conductors connected to both ends of the fusible alloy, respectively, and a surface layer on the lead conductors, respectively. The surface layer is made of tin or alloy including tin as main su... | 02/06/2007 |
| 7172984 | Fuse housing of targeted percentage tetragonal phase zirconia and method of manufacture A ceramic fuse housing is provided for surface mount circuit protectors, wherein a selectively destructible fuse is at least partially retained within the fuse housing. The fuse housing being formed of between 80% to 90% alumina and 20% to 10% zirconia, wherein 5% t... | 02/06/2007 |
| 7148453 | Control unit with thermal protection and an electrical heating device comprising the control unit An overheating protection system for a control unit includes an interrupter element, which, in its initial position defined with respect to a circuit board, electrically connects the opposite facing ends of at least one track on the circuit board, and an actuating e... | 12/12/2006 |
| 7135954 | Circuit breaker for electric coupling device An electric coupling device includes a housing having a front socket opening and a rear chamber formed by two side wall. Two prongs are disposed in the socket opening of the housing and each has a free end extended out of the housing, and two conductor terminals are... | 11/14/2006 |
| 7071809 | Thermal fuse containing bimetallic sensing element A non-resetable, bimetallic thermal switch. The bimetallic thermal switch includes a bimetallic element, first and second electrical contacts, and a component for electrically connecting and disconnecting the first and second electrical contacts based on movement of... | 07/04/2006 |
| 7042327 | Alloy type thermal fuse and wire member for a thermal fuse element An alloy type thermal fuse is provided in which a ternary Sn—In—Bi alloy is used, the operating temperature belongs to the range of 130 to 170° C., the overload characteristic and the dielectric breakdown characteristic are excellent, the insulation stability a... | 05/09/2006 |
| 7023674 | Overload protector for electrical motors An overload protection for electric motors, includes a one-piece suppression choke in which the connecting point to be broken is produced by means of at least one connecting point between the connection lug of the motor and a respective connecting element of the sup... | 04/04/2006 |
| 6995648 | Fuse barrier and power circuit employing the same A power circuit includes a first low voltage power bus, a second low voltage power bus, a fuse electrically connected between the first low voltage power bus and the second low voltage power bus, and a fuse barrier. The fuse has a non-interrupted state and an interr... | 02/07/2006 |
| 6724292 | Thermal fuse An object is to provide a thermal fuse that is free of a trouble of welding contact between a movable electrode (4) and a lead (2) even when temperature of an equipment to which the thermal fuse is connected rises gradually and that has small electric ... | 04/20/2004 |
| 6603385 | Safety devices for electrical circuits and systems A protective device for minimizing fire danger in the use of electrical circuits comprises a unit having a mechanically biased conductive element in series with the circuit, and maintained in position under tension by a fusible material such as a Cerro al... | 08/05/2003 |
| 6483420 | Circuit breaker When an ignitor 29 is ignited by an abnormal signal sent from outside, a heating agent 27 charged into a thermite case 26 is heated, a retainer 45 is melted by the heat, a compression spring 39a is expanded to allow the thermite case 26 to move up. Theref... | 11/19/2002 |
| 6445276 | Electrical fuse for use in motor vehicles A fuse apparatus (1) is provided for selectively interrupting a load current (Ia) flowing between a pair of associated conductor leads. The fuse apparatus includes at least two spaced apart electrically conductive contact elements (5) operative... | 09/03/2002 |
| 6348851 | Breaker switch and battery including the same Breaker switch arranged on a wall (4) of an electric device (9) including a receptacle (20), containing a thermofusible composition (25) having a softening point θ1, and a flexible metal strip (10) interposed between two studs (2a, 2b) fixed b... | 02/19/2002 |
| 6340926 | Power plug with circuit breaker A power plug includes a plug body having opposite sides and an end, terminal prongs extending from the end of the plug body, and a built-in circuit breaker. The circuit breaker is operable between a normal condition enabling the power plug to connect a lo... | 01/22/2002 |
| 6204747 | Safety devices for electrical circuits and systems A protective device for minimizing fire danger in the use of electrical circuits comprises a unit having a mechanically biased conductive element in series with the circuit, and maintained in position under tension by a fusible material such as a Cerro al... | 03/20/2001 |
| 6194988 | Low melting point element fusion apparatus and circuit breaker including the same A fusion apparatus is equipped with a fuse, a solid combustion agent, an igniting device, and a spring. The solid combustion agent and the igniting device are accommodated within an inner casing. The inner casing is disposed in the vicinity of, or in cont... | 02/27/2001 |
| 6140905 | Electrically conductive contact pin having a temperature fuse function An electrically conductive contact pin having a temperature fuse function includes an electricity conducting element formed in an approximately cylindrical shape divided into an electrode contact portion and an outer electric contact portion, a holding bo... | 10/31/2000 |
| 6140904 | Thermal disconnect for high-temperature batteries A new type of high temperature thermal disconnect has been developed to protect electrical and mechanical equipment from damage caused by operation at extreme temperatures. These thermal disconnects allow continuous operation at temperatures ranging from ... | 10/31/2000 |
| 5982270 | Thermal fuse A thermal fuse includes a first electrical contact extending through and engaged in electrical contact with a second contact. A spring is compressed between the first and second contacts. A thermally deformable pin retains the second contact against the c... | 11/09/1999 |
| 5896080 | Thermal fuse for fixing on a circuit board A thermal fuse includes a resilient coil portion with a turn of at least 360°. Two spring arms have two upper portions connected to and integrally formed with two ends of the coil portion, and two lower portions extending from the upper portions and form... | 04/20/1999 |
| 5831507 | Dual-functional fuse unit that is responsive to electric current and ambient temperature A dual-functional fuse unit, which is responsive to an electric current and an ambient temperature, contains a current sensing fuse and a temperature sensing fuse element. The current sensing fuse is serially connected with and between lead terminals of t... | 11/03/1998 |
| 5825277 | Thermal pellet cutoff switch A thermal pellet holds contact-carrying resilient switch blades in bending stress with the contacts closed. Melting of the thermal pellet relieves the bending stress and allows movement of the switch blades to open the contacts.... | 10/20/1998 |
| 5825278 | Thermal pellet cutoff switch A thermal cutoff having a single switch blade that is held in a contacts-closed position under bending stress by a thermal pellet and that moves to a contacts-open position solely by relief of the bending stress upon melting of the thermal pellet.... | 10/20/1998 |
| 5793274 | Surface mount fusing device A thermal fuse device for over-current protection includes a fusing element comprising a conductive strip having a fulcrum point between first and second ends. The fuse strip is connected to first and second terminal pads on a substrate by a first solder ... | 08/11/1998 |
| 5734312 | Overtemperature protection assembly for an appliance An overtemperature protection assembly with a mount, a solder terminal and a bridging connector. The mount is a block of ceramic material with a slot extending therethrough. The solder terminal has an end that is located in the slot and forms a frictional... | 03/31/1998 |
| 5686878 | Temperature sensitive fusible link assembly having cooperating projections and slots A fusible link assembly including a pair of link members arranged in overlying relation and a thermally sensitive bonding material interposed between the link members with the bonding material being solid below a predetermined temperature to form a bond b... | 11/11/1997 |
| 5612662 | Thermal fuse and method for its activation A thermal fuse includes a leaf spring formed of a narrow sheet metal strip. The leaf spring has ends and at least two contact points at the ends. At least one of the contact points is a soldering point for connection with corresponding circuit contacts of... | 03/18/1997 |
| 5612663 | Dual-temperature fuse A thermal fuse which interrupts at least one current path which runs through it when a triggering temperature value is exceeded, with a fuse housing in which at least two thermal fuse elements are arranged and from which at least two connection contacts p... | 03/18/1997 |
| 5600295 | Thermal fuse and method for the activation thereof The thermal fuse has a spring clip (1) with solder locations (5, 6) at both ends as well as a bending section (4) in the region between the solder locations. Given a tension-free spring clip, the spacing between the solder locations (5, 6) corresponds to ... | 02/04/1997 |
