| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Circuit interrupter having improved current sensing apparatus | US6794 | 1998-01-14 | US6094330A | 2000-07-25 | Joseph Criniti; Edward E. Kim; Javier I. Larranaga; Esteban Santos |
| A circuit interrupter of the type including an electronic trip unit for overcurrent determination which includes a small-sized iron core current transformer to power the trip unit electronics along with a giant magnetic resistor semiconductor (GMR) to sense the current flow within the protected circuit. | ||||||
| 162 | Interface connection for a circuit breaker plug-in trip unit | US356944 | 1994-12-15 | US5634554A | 1997-06-03 | Bernard Dimarco; David A. Leone |
| A circuit breaker including a sliding connection between a trip unit and associated contact arm is disclosed herein. The sliding connection facilitates assembly of the circuit breaker and also permits a reduction of size for a circuit breaker of a given rating. An embodiment of the sliding connection includes a blade and jaw assembly connected between the trip unit and contact arm. Another embodiment of the sliding connection includes a blade or jaw assembly slidably connected directly to the contact arm. | ||||||
| 163 | Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap | US565764 | 1995-11-30 | US5608367A | 1997-03-04 | Walter M. Zoller; David S. Hunter, Jr.; Edward L. Wellner; Michael R. Larsen; Peter J. Theisen; Donald A. Link |
| In a molded case circuit breaker with an interchangeable thermalmagnetic trip unit, the C-shaped heater transformer core is permanently held in place in the casing by a load bus strap with the gap in the core facing the trip unit. When the interchangeable trip unit is inserted into the molded casing, a magnetically permeable member mounted in the trip unit is aligned in the gap in the heater transformer core. The bimetal of the trip unit is fixed at one end to an electrically conductive sleeve surrounding the magnetically permeable member and forming the secondary of the heater transformer. The length of the magnetically permeable member is selected to establish the current conditions at which the bimetal trips the circuit breaker. The bus strap has an off-set section forming a first shoulder against which one wall of the housing of the interchangeable trip unit seats, and a second shoulder against which a pole piece backed by the heater transformer core seats to fix a gap between the pole piece and the armature in the interchangeable trip unit providing the instantaneous magnetic trip function. | ||||||
| 164 | Cover for battery compartment and communications port | US375454 | 1995-01-19 | US5605467A | 1997-02-25 | H. Richard Beck; Kenneth M. Fischer |
| A cover for a communications port and an aperture at a surface of an electrical switching device includes a cover mechanism for covering at least the communications port and the aperture; and a plug having a proximate end attached to the cover mechanism and having a distal end for insertion within a recess of the communications port. Alternatively, an electrical switching device comprises separable contacts; a housing for the separable contacts including a surface having an aperture and a communications port with a recess; a cover mechanism for covering at least the communications port and the aperture; and a plug having a proximate end attached to the cover mechanism and having a distal end for insertion within the recess of the communications port. | ||||||
| 165 | Accessory compartment for high ampere-rated circuit breaker | US248900 | 1994-05-25 | US5605224A | 1997-02-25 | Raymond K. Seymour; Paul T. Rajotte; Paul H. Singer; John A. Pollman |
| This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The circuit breaker electronic trip unit is contained within a recess in the circuit breaker cover and is interlocked with the circuit breaker operating mechanism to articulate the operating mechanism upon removal. The accessory units are contained within an adjoining accessory compartment recess within the circuit breaker cover. Rejection pins on the accessories insure that the correct accessories are connected within the corresponding accessory compartments. | ||||||
| 166 | Circuit breaker trip unit connector clips | US383644 | 1995-02-06 | US5495396A | 1996-02-27 | Robin L. Mendick; Ira B. Goldman |
| Collector clips arranged on a circuit breaker trip unit printed circuit board allow removable connection between the trip unit circuit and the circuit within a field-installable rating plug as well as other auxiliary electrical devices. The connector clips are oriented to the rating plug and the trip unit to prevent cold flow of the solder at the junction between the ends of the connector clips and the receiving holes formed within the trip unit circuit board. | ||||||
| 167 | Circuit breaker comprising a removable calibrating device | US217329 | 1994-03-23 | US5450048A | 1995-09-12 | Jean-Francois Leger; Gilles Savoyat |
| A removable calibrating unit comprises a body, a front panel and a part in the form of a reversible ramp. The reversible ramp comprises an end close to the front panel and an end away from the front panel. Extraction of the removable unit is achieved by means of a pin comprising an extraction lug. When the pin is subjected to rotational movement in one direction, the lug moves from the end close to the front panel to the end away from the front panel and results in extraction of the unit by applying thereon a force separating the unit from the circuit breaker. | ||||||
| 168 | Molded case circuit breaker mechanical rating plug | US148240 | 1993-11-08 | US5392016A | 1995-02-21 | David Arnold; Roger N. Castonguay |
| A molded case circuit breaker having a thermal-magnetic trip unit is provided with a mechanical rating plug to allow a number of circuit breakers of different ampere ratings to be used within a common-sized enclosure. Multiple mechanical rating plugs are stored at the place of distribution to adapt the common enclosure to a specific ampere rating at a substantial savings in time, labor and materials. | ||||||
| 169 | Circuit breaker comprising a card interfacing with a trip device | US812289 | 1991-12-23 | US5331500A | 1994-07-19 | Vincent Corcoles; Christian Tedeschi; Alain Delvecchio; Didier Fraisse |
| The interface card fixedly secured to the circuit breaker supplies information representative of the circuit breaker type and rating to a standard removable trip device. It comprises for example resistances designed to be connected in parallel to a resistance of a divider bridge defining in the trip device the instantaneous tripping threshold, modifying this threshold automatically according to the circuit breaker type and rating. The interface card can also supply the trip device with information representative of the rated current flowing in the primary winding of the current transformers fixedly secured to the circuit breaker. | ||||||
| 170 | Molded case circuit breaker trip-to-test button | US28202 | 1993-03-08 | US5317295A | 1994-05-31 | David A. Ferullo; Roger J. Morgan; James L. Rosen |
| An electronic trip molded case circuit breaker includes components that are designed for high speed robotic assembly. A unitary trip-to-test button is down-loaded within the circuit breaker housing for automatic alignment with the circuit breaker operating mechanism during the circuit breaker assembly process. The trip-to-test button includes an exhaust gas barrier along with a roller actuator for interacting with the circuit breaker operating mechanism during a test function. | ||||||
| 171 | Metering accessory for molded case circuit breakers | US733489 | 1991-07-22 | US5204798A | 1993-04-20 | Graham A. Scott |
| A rating plug-metering accessory for molded case circuit breakers of the type employing an electronic trip unit is in the form of a rating plug enclosure that is optionally installed in the circuit breaker cover. Besides setting the ampere rating of the electronic trip unit, the rating plug-metering accessory further provides direct readout of the current in any of the phases of a multi-phase power distribution circuit. The rating plug-metering accessory can be either factory-installed or installed in situ. | ||||||
| 172 | Processor controlled circuit breaker trip system having an intelligent rating plug | US403507 | 1989-08-31 | US5136457A | 1992-08-04 | Leon W. Durivage, III |
| A rating plug circuit is used in a processor-based circuit breaker tripping system having a current sensor for sensing current from a current path. The rating plug circuit includes a printed circuit board and a resistor that is connected to the printed circuit board for establishing a designated voltage in the presence of a predetermined amount of sensed current. A connector, having a plurality of conductive contact points, interconnects the printed circuit board with the tripping system, and a plurality of printed circuit paths are included on the printed circuit board to provide a binary code at the contact points. The binary code indicates the value of the resistor and is read by the processor to analyze the current in the current path. | ||||||
| 173 | Molded case circuit interrupter rating plug keying and interlock arrangement | US310180 | 1989-02-15 | US5027091A | 1991-06-25 | David J. Lesslie; Robert A. Morris; Alan J. Messerli; Graham A. Scott; Alexander A. Krajewski |
| An electronic circuit interrupter includes an electronic trip circuit contained within a circuit interrupter enclosure along with an externally accessible rating plug for setting the ampere rating. The rating plug includes keying tabs that fit within corresponding keying slots formed on the top surface of the electronic circuit interrupter enclosure. Interlock is provided between the rating plug and the electric panelboard which includes a plurality of electronic circuit interrupters connected within an industrial power system. Tabs formed on the side walls of the rating plug are trapped under the panelboard face plate to prevent removal of the rating plug without first removing the panelboard face plate. | ||||||
| 174 | Compact circuit interrupter having multiple ampere ratings | US539399 | 1990-06-18 | US5015983A | 1991-05-14 | Donna C. DeRosier; Richard A. Dziura; Joseph M. Palmieri; Eric D. Juntwait; Linda Y. Jacobs; Graham A. Scott |
| A compact circuit breaker containing an electronic trip unit for interrupting overcurrent conditions within a protected circuit is made operable over a wide operating current range by means of current transformers having multiple turn primary windings. The primary windings are selected to provide a constant ampere-turns ratio to the current transformers without changing the size of the secondary winding or the volume of the transformer core. | ||||||
| 175 | Molded case circuit breaker auxiliary switch unit | US302699 | 1989-01-27 | US4912439A | 1990-03-27 | Joseph G. Nagy; Richard E. Bernier; Carin B. Benway |
| An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the circuit breaker cover from the environment. An auxiliary switch unit is one such accessory component which can be field-installed without affecting the integrity of the circuit breaker and which is connected to a remote indicator connected by external wire conductors to signal the "ON" or "OFF" condition of the circuit breaker contacts. The auxiliary switch unit enclosure is specially shaped to protect the auxiliary switch from damage due to excess tension on the external wire conductors. | ||||||
| 176 | Circuit interrupter | US80108 | 1987-07-31 | US4754246A | 1988-06-28 | Haruhisa Toda; Kazuhiro Ishii; Toshiyuki Tanibe; Hiroaki Fugihisa |
| A circuit interrupter comprising an automatic trip unit connected to an interrupting unit for tripping the interrupting unit to open separable contacts in response to an overcurrent, the automatic trip unit being a replaceable unit selected from a plurality of differing types of trip units including an electronic trip unit and a thermally responsive electromagnetic trip unit. | ||||||
| 177 | Interchangeable mechanism for molded case circuit breaker | US817213 | 1986-01-08 | US4679016A | 1987-07-07 | Ronald D. Ciarcia; Gregory T. DiVincenzo; Richard E. Bernier; Joseph G. Nagy |
| An interchangeable operating mechanism assembly for molded case circuit breakers having a detachable movable contact arm and trip unit assembly allows the same mechanism assembly to be employed across a wide range of breaker ratings. A snap-on common trip bar attachment further allows multiple-pole facility off the common interrupter mechanism assembly. The mechanism assembly is designed to maintain the operating handle in the "on" position upon the occurrence of a welded contact and prevents the mechanism from being reset. | ||||||
| 178 | Circuit interrupter with shock resistant mechanism | US831034 | 1986-02-19 | US4639700A | 1987-01-27 | Edward J. Shestak; David Marschik |
| A circuit interrupter with shock resistant mechanism characterized by a circuit breaker/contactor device in combination with an electromagnetic actuator which comprises a pair of opposed and facing solenoids having aligned armatures for actuating a linkage to open and close contacts of the circuit breaker contactor, and the linkage having a coupler link for movement between co-linear alignment with the armatures when the contacts are closed and for non-linearity when the contacts are open. | ||||||
| 179 | Circuit breaker assembly for high speed manufacture | US718409 | 1985-04-01 | US4622530A | 1986-11-11 | Ronald D. Ciarcia; Gregory T. Di Vincenzo; Dennis J. Doughty; Richard E. Bernier |
| A circuit breaker design and process for high speed assembly utilizes a unique secondary latch arrangement to reduce frictional forces and increase the breaker calibration test yield. The design allows for interchangeability of the trip unit by first pre-assembling the arc chute cavity and operating mechanism. Arrangement of the primary and secondary latch pivots reduces the trip force for further increase in the calibration yield. | ||||||
| 180 | Circuit breaker with replaceable rating plug interlock and push to trip button | US771376 | 1985-08-30 | US4603313A | 1986-07-29 | Alan B. Shimp; William E. Beatty, Jr. |
| A circuit breaker characterized by a pair of separable contacts, trip means operable automatically in response to overload current conditions to open the contacts which means include a rotatable trip bar biased in an untripped position, and interlock means including a manually operable button for rotating the trip bar to a tripped position when the button is pushed and for rotating a cam into tripped and untripped positions when the button is rotated. | ||||||
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