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WO/1992/001304A1 |
A thermal actuator (10) utilizes a bimetallic snap action member such as a disc (12) to actuate a member such as the armature (28) of a switch to effect opening and closing of the switch. A resilient biasing member (36), such as an elong...
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WO/1991/019311A1 |
An electric immersion heater has en element portion, a head portion, a cover defining an air space with the head portion, and a thermostatic switch mounted within and responsive to the temperature of the air space, the switch also being ...
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WO/1991/017558A1 |
A thermally-responsive differential expansion device is similar to a bimetallic device but has its plural layers formed of synthetic plastics materials having lower thermal conductivity whereby the device can sustain a greater temperatur...
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WO/1991/016585A1 |
Alarm system for temperature supervision for a refrigerated compartment comprising sealed container (2) in said compartment which is filled with a substance with a solidifying/melting temperature which is close to the required alarm temp...
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WO/1991/015026A1 |
In appliances such as domestic irons, power is supplied cyclically to the heating means in response to a thermostatic control. A switch unit (100) placed in the power supply interrupts the power after a given number of cycles. As power p...
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WO/1991/009749A1 |
A motor vehicle storage heater comprises a heat-exchanger (8) which is lodged in an outer housing (12). The heat-exchanger divides the hot-gas chamber (4), which is connected to the combustion chamber, from a heating medium channel (10) ...
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WO/1991/007767A1 |
Inoperability due to solenoid freeze up, electrical malfunction or human error in a mechanical disconnect system can be avoided through the use of an electric and thermal operator including a pin (52) mounted for axial movement and havin...
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WO/1991/006112A1 |
The invention relates to a device which causes a safety locking of the electrical contactor of faulty ventilator thermocontacts or the like. The device is placed in the thermocontact element. It comprises a stationary contact (5), a mova...
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WO/1991/005357A1 |
A condition responsive switching apparatus with an alarm feature for use in refrigeration appliances, such as freezers or the like. The switching apparatus includes a contact operator (72) which moves between first, second, and third pos...
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WO/1991/001042A1 |
A thermally sensitive electrical protector including a snap acting actuator (2) in the form of a stressed sheet of bimetal mounted within an electrically insulating housing (1) together with a pair of contacts (4, 5) and a leaf spring (3...
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WO/1991/000608A1 |
A method of producing an integral piece of thermo-sensitive material, which is responsive to a shift in temperature from below to above a phase transformation temperature range to alter the material's condition to a shape-memory conditio...
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WO/1990/015430A1 |
An actuator such as an electrical switch which responds to an event such as a change in temperature by movement of an element between first and second positions, for example in which an electrical circuit is open and closed respectively,...
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WO/1990/011608A1 |
In order to protect in particular electronic circuits from overheating, current or voltage surges, and transients, a fuse is proposed which includes a fuse wire (7) between two connecting wires (8a, 8c), conveniently in the form of resis...
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WO/1990/009672A1 |
An electric immersion heater comprises an element (1) having a cold tail (27) of a material having a high thermal conductivity such as copper. The cold tail (27) directly mounts a bimetallic actuator (32) which by virtue of heat transmit...
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WO/1990/008496A1 |
The device is designed to support the mechanical and electrical elements of a toaster (1). The device consists of a plate (2) made of plastic material comprising projections or clamps (3, 4, 5, 6) moulded onto the plastic material and pr...
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WO/1990/008947A1 |
An apparatus for detecting an abnormal temperature of a regenerative resistor which dissipates the regenerative energy of an electric motor. This apparatus has a heat conductive member (11) provided in contact with the surface of a regen...
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WO/1990/006587A1 |
A micromechanic manipulator has a substrate (1), heating elements and a manipulator arm (2) that works based on the principle of the bimaterial effect. Known bimaterial manipulators carry out perpendicular movements to the surface of the...
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WO/1990/005988A1 |
Thermal actuators having a low temperature differential generally have a weak snap action. To overcome the problem, a snap action thermal actuator (10) utilizes a pair of mechanically coupled bimetallic members (12, 14) having different ...
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WO/1990/000825A1 |
A device assembly (1) in which a plurality of PTC circuit protection devices (31) are connected in series. Assemblies of this type are useful in providing protection under voltage conditions which would be unsafe for an individual protec...
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WO/1989/009477A1 |
A micromechanical device comprises an element whose position can be varied consisting of a bimaterial system and which can be placed and maintained in a predetermined position. The instantaneous position of the element is determined by m...
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WO/1989/001697A1 |
Improved arc-suppressing fuse tube of the type used in electrical cutouts is provided which includes a filled epoxy resin matrix core designed, upon experiencing high temperature arcing conditions, to generate sufficient moisture and arc...
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WO/1988/006799A1 |
Driving element (1) comprising a thin part (2) provided with a zone, ductile in the direction of its thicknes in such a way as to occupy at least two positions, in at least one of which said zone is arc-shaped, at least one tab (3, 4) fi...
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WO/1988/003725A1 |
Trimming of a trimmable microminiature force-sensitive switching device (10) that includes a silicon substrate (12) having a reduced-thickness, deflectable member (14) adapted to change its deflection in response to changes in the extern...
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WO/1987/004560A1 |
Safety disconnection device for electrical users, in particular for use in smoothing irons and portable heaters. It comprises a thermal switch (1) with another switch (22) connected in parallel with the user (R), a dropping resistor (R1)...
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WO/1987/003137A2 |
The above-described switch comprises a flat electrically-insulated support (1), at least two electrical connection parts (3, 4), of which one is linked with a fixed contact (10) arranged on the support (1) and the other is linked to a co...
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WO/1987/002835A1 |
A device for protecting against excess current comprises a positive temperature coefficient (PTC) device and a tension spring connected by a solder joint adjacent the PTC device. Electrical current passes in series through the spring and...
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WO/1987/002823A1 |
Universal switch with integral contact tabs, where the fixing parts (9,10) and the insulating case (1,2) of the switch are interchangeable. This feature makes the switch universal.
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WO/1987/000964A1 |
An electrical fuselink having improved surge-resistant characteristics comprises a fuse element (1) disposed in an electrically insulating enclosure (4) having all or part of the air-space within the enclosure filled with a microporous o...
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WO/1986/003054A1 |
A fuse insert comprises an insulating element (1) wherein a fuse element embedded in an arc-extinguishing medium extends between two contacts, and an optoelectrical indicator (13) connected in parallel by a network to the fuse element. I...
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WO/1986/002773A1 |
An electrical component comprising a temperature responsive device (1) including an electrically conducting member (1) of spring temper in contact with a thin insulating coating (3) of a substance which decomposes on being subject to an ...
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WO/1985/004045A1 |
A thermally-activated, shorting-diode switch whose composite diode structure possesses a non-operationally-alterable junction path, and whose diode shorting is effectuated by temperature-sensitive companion elements. The diode structure ...
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WO/1985/003383A1 |
A microminiature switch (104) for digitizing different valued external conditions, such as pressure, temperature or acceleration. The switch (104) includes a silicon wafer (108) having a deflectable, reduced-thickness membrane (106) adap...
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WO/1985/002055A1 |
A blade fuse includes parallel blades (12 and 14) secured in a body (16). A fusible link (42) welded to the blades is located in a cavity (20) of the body that is covered by a window (61). The blade fuses are assembled by blanking the fu...
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WO/1985/001412A1 |
A thermal cut-out device for a radiant heater comprises a probe-type thermally responsive assembly (2), at least a part of which is coated with and/or is surrounded by a radiation reflective material. The probe-type assembly may comprise...
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WO/1985/001149A1 |
The body (410 in Fig. 4a) of the disclosed fuse includes connective portions (401, 402) having surface metalization (408, 418) to which corresponding connective portions (523, 529 in Fig. 5) of the fusible element (520) are respectively ...
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WO/1983/003706A1 |
In a single use thermal switch having a fusible pellet that melts at a predetermined temperature and utilizing a slidable contact member, it would be most desirable if the contact member could easily slide in the casing when disconnectin...
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WO/1983/002832A1 |
A temperature responsive control unit for controlling either cooling means such as a freezer or refrigerator or a space heater employs a first temperature sensing element (3A) responsive to temperature in the immediate vicinity of an eva...
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WO/1983/002157A1 |
A temperature or pressure sensing element of the kind having an expansible capsule or bellows (1) connected a capillary tube (2) by way of an hermetic seal is fabricated by sealing the capillary tube (2), which may be of aluminium, stain...
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WO/1982/004497A1 |
A thermostatic switch unit for controlling a freezer or, for example, refrigeration apparatus in automotive air conditioning, includes a switch (1) which is acted upon by a thermostat mechanism responsive to the working temperature of th...
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WO/1982/003492A1 |
A bayonet-type circuit breaker or under oil fuse device (10) for completing the circuit from a high voltage bushing (18) to an under oil transformer (14), the bayonet-type device including a bayonet assembly having a circuit element (38)...
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WO/1982/002795A1 |
An electric fuse has fuse conductors which consist of two metals e.g. copper and silver arranged so that the current passes from one terminal through copper and silver alternating. By means of reductions in cross section in the silver pa...
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WO/1982/002622A1 |
A filter bypass monitoring switch (22) includes a housing (24), a piston (28) slidable in the housing (24) and operatively coupled to a movable control member (20) of a bypass valve (18), a spring (42) to bias the piston (28) to follow t...
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WO/1982/001961A1 |
The fuse comprises an elongated support formed by at least partially ferrite, magnetised in the direction of its thickness and on which there is arranged, between two terminals, a metal wire (9) capable of being destroyed by fusion. The ...
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WO1982000219A1 |
Thermostat with a heat sensitive body (5) of ferromagnetic material and a movable magnet (4) cooperating therewith. A pair of contacts (6, 7) which are closed or open depending upon the position of the magnet, said position in turn depen...
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WO/1981/001627A1 |
A plug-in electrical fuse comprises a fusible wire (9) disposed within an insulating housing (1) and connected between the ends of two blade-like terminals (4) secured within and projecting from the housing. Fuses of this type are manufa...
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JP2024049240A |
An object of the present invention is to provide a protection element that can be quickly and reliably fused even when the cross-sectional area of the fuse element is increased. [Solution] A protective element 1 includes an insulating su...
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JP2024043516A |
[assignment]high powerDCA thermal fuse assembly for a circuit is provided. A thermal fuse assembly includes a case extending from a first case end to a second case end, and an insulated lead protruding from the second case end. A bushing...
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JP2024035821A |
An object of the present invention is to provide a protection element that can suppress the occurrence of large-scale arc discharge when a fuse element blows out, and that can perform both overcurrent interruption and interruption functi...
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JP2024035140A |
The present invention provides a protection element that has reflow resistance, can maintain low electrical resistance even after reflow, and is equipped with a lead-free fuse element made of a single alloy. The present invention include...
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JP7449263B2 |
To provide a pressure switch capable of suppressing breakage of a pressure responsive portion and preventing leakage of pressure medium by preventing an actuation plate from falling off and improving pressure resistance even when excessi...
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