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Class 335/39 - With time delay (e.g., thermal)


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter wherein the trip structure includes significant
No. of patents: 11
Last issue date: 06/24/2008


NumberTitleIssue Date
7391289Systems, methods, and device for actuating a circuit breaker
Certain exemplary embodiments comprise a device comprising: a trip mechanism adapted to engage an operating mechanism of an alternating current circuit breaker, said trip mechanism comprising: a bi-metal element arranged lengthwise into a first end zone, a central z...
06/24/2008
7324876System for remotely controlling energy distribution at local sites
A power management system and associated method includes provision of local wireless energy control units at remote sites for controlling power delivery to customer loads, and a central station with a wireless transmitter for broadcasting commands to the wireless en...
01/29/2008
7301742Method and apparatus for accessing and activating accessory functions of electronic circuit breakers
An electronic trip unit for a circuit breaker includes a programmed microprocessor and a module plug in removable signal communication with the microprocessor. The module plug includes a program identifier. The microprocessor recognizes the program identifier and ac...
11/27/2007
7265652Controllable electronic switch
A controllable electronic switch for, e.g., controlling power distribution comprises a deformable member such as a bimetal arm that can be deformed to break an electrical path. The deformable member may be anchored at one end and in controllable contact with an elec...
09/04/2007
7141751Breaker for providing successive trip mechanism based on PTC current-limiting device
Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in par...
11/28/2006
6420948Parallel contact circuit breaker
A parallel pole magnetohydraulic circuit breaker (10), having a single trip element (271) and a pair of trip mechanisms (101, 102), achieving an increased current carrying capacity with reduced nuisance trips. The tip mechanisms (101, 102) are contained w...
07/16/2002
5245302Automatic miniature circuit breaker with Z-axis assemblable trip mechanism
An improved miniature circuit breaker is provided which is adapted to improved automatic assembly of all components thereof. Key components of the breaker are individually and collectively designed to be susceptible to total Z-axis assembly. In particular...
09/14/1993
4675641Rating plug for molded case circuit breakers
A selectable rating plug allows a standard molded case circuit breaker design to be used over a wide range of ampere ratings. The rating plug is used to control the thermal load on the thermally responsive trip element within the breaker. Movement of the ...
06/23/1987
4276527Multipole electrical circuit breaker with improved interchangeable trip units
A molded case multi-pole circuit breaker comprises an interchangeable trip unit having a magnetic circuit surrounding a main stationary conductor and provided with a U-shaped core secured to circuit-breaker assembly and a magnetic rod fastener to the trip...
06/30/1981
4214219Push-push switch
A switch which is opened and closed by successively depressing a manual operating handle is provided with one spring for separating the switch contacts and a separate spring for closing the switch contacts. Interrupting capacity is improved without increa...
07/22/1980
4165502Current limiter assembly for a circuit breaker
The following specification describes a bimetal in the limiter assembly of a circuit breaker to operate the trip crossbar for opening the main circuit breaker contacts. An arm is also provided on one blade of the current limiter contacts to also operate t...
08/21/1979
 
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