Patent
Magnetic trip device with wide tripping threshold setting range
TLDR
In this paper, a magnetic trip device with two plunger cores cooperating with polar parts of a fixed magnetic circuit excited by a coil is described, where the effects of the plunger core are opposing and by adjusting the inital position of the moving core assembly constituted by these two plume cores, the tripping the threshold can be adjusted with a large amplitude.Abstract:
A magnetic trip device having two plunger cores cooperating respectively with polar parts of a fixed magnetic circuit excited by a coil. The effects of the plunger cores are opposing, and by adjusting the inital position of the moving core assembly constituted by these two plunger cores, the tripping thereshold can be adjusted with a large amplitude.read more
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Patent
Rotary contact assembly for high ampere-rated circuit breakers
TL;DR: In this article, a rotary contact arm is used within a plurality of single pole circuit breakers ganged together to form a single multi-pole circuit breaker to provide uniform contact wear among the associated circuit breaker contacts.
Patent
Rotary contact assembly for high ampere-rated circuit breakers
TL;DR: In this paper, a rotary contact assembly employs a common pivot between the rotor assembly and the contact arm, and a pair of off-center expansion springs directly engage the rotor at one end and engage the contact arms via a linkage arrangement at an opposite end thereof.
Patent
Circuit breaker thermal magnetic trip unit
TL;DR: In this article, a thermal-magnetic trip unit was proposed for use in a circuit breaker for eliminating the requirement for latching surfaces while still providing the additional force and motion required to trip the breaker during a short circuit or an overcurrent trip event.
Patent
Pressure sensitive trip mechanism for a rotary breaker
TL;DR: In this article, a pressure sensitive trip mechanism for actuating a circuit breaker operating mechanism to trip the circuit breaker includes a trip lever and a trip bar, rotated about a first pivot.
Patent
Rotary contact circuit breaker venting arrangement including current transformer
Roger N. Castonguay,Dennis J. Doughty,Dean Arthur Robarge,Dave S. Christensen,James Lawrence Rosen,Randall Lee Greenberg,Stefan Kranz,Mark Culler,Thomas F. Papallo +8 more
TL;DR: A rotary contact circuit breaker having a venting arrangement to vent gasses operated by a short circuit interruption to a location substantially above the load strap of the breaker whereby electrical components are not damaged by the gasses and ionized gasses from different phases are conveyed in discrete channels for a period exceeding the period during which ionization is present as discussed by the authors.
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Patent
Circuit breaker having shock-proof trip-actuating assembly
TL;DR: The trip mechanism of a molded case type circuit breaker is actuated by a plunger that is integral with and axially extends from the end of a reciprocally-movable core member of a solenoid mounted within the breaker housing as mentioned in this paper.
Patent
Cct. breaker magnetic trip adjuster - has spring resettable armature part guided in armature bore across its effective direction
TL;DR: The magnetic trip adjuster as discussed by the authors uses a threaded tripping pin, carrying an armature spring-loaded by a resetting spring on the thread is carried a tripping portion, adjustable in the longitudinal direction of the pin.
Patent
Synthetic magnesium aluminosilicate, process for the manufacture thereof, and pharmaceutical compositions containing same
Schulthess A,Farine Jean-Claude +1 more
TL;DR: In this paper, a synthetic magnesium aluminosilicate consisting of 47-57% SiO 2, 9-11% Al 2 O 3, 3-5% MgO, 1-3% CaO, and less than 5% Na 2 O, balance water to total 100% calculated analytically.
Patent
Circuit breaker magnetic trip device
TL;DR: In this article, a magnetic trip unit for a circuit breaker having an armature and a plunger is described, where the armature completes a magnetic path through the poles of a permanent magnet; the armatures and plunger are biased toward trip position but are held by the permanent magnet.