ADJUSTABLE MAGNETIC TRIP ASSEMBLY FOR CIRCUIT BREAKER
An adjustable magnetic trip unit (1) for a circuit breaker includes a torsio n spring (33) which applies a bias force to the plunger (15) of a trip solenoi d (7). The torsion spring (33) is mounted on a driven bevel gear (47) and woun d by an adjustment knob (39) coupled to a driving bevel gear (51)...
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creator | GIBSON, JEFFREY SCOTT RODGERS, CRAIG ALLEN LAKE, ERIK STEPHEN |
description | An adjustable magnetic trip unit (1) for a circuit breaker includes a torsio n spring (33) which applies a bias force to the plunger (15) of a trip solenoi d (7). The torsion spring (33) is mounted on a driven bevel gear (47) and woun d by an adjustment knob (39) coupled to a driving bevel gear (51) to adjust th e current at which the solenoid (7) is activated. An indexer (37) having peripheral flates (61) which engage a seat (55) in the circuit breaker housi ng (3) provides a pluarlity of discrete positions of the adjustment knob (39). Depressing the adjustment knob (39) against a second spring (59) unseats the indexer (37) for rotation of the adjustment knob between settings. In addition, a slide (71) with an inclined surface (85) bearing against the plunger (15) and coupled to the driven bevel gear (47), provides simultaneou s adjustment of plunger gap (67) with adjustment of the torsion spring force t o increase the range of adjustment. |
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The torsion spring (33) is mounted on a driven bevel gear (47) and woun d by an adjustment knob (39) coupled to a driving bevel gear (51) to adjust th e current at which the solenoid (7) is activated. An indexer (37) having peripheral flates (61) which engage a seat (55) in the circuit breaker housi ng (3) provides a pluarlity of discrete positions of the adjustment knob (39). Depressing the adjustment knob (39) against a second spring (59) unseats the indexer (37) for rotation of the adjustment knob between settings. In addition, a slide (71) with an inclined surface (85) bearing against the plunger (15) and coupled to the driven bevel gear (47), provides simultaneou s adjustment of plunger gap (67) with adjustment of the torsion spring force t o increase the range of adjustment.</description><edition>7</edition><language>eng ; fre</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC SWITCHES ; ELECTRICITY ; EMERGENCY PROTECTIVE DEVICES ; RELAYS ; SELECTORS</subject><creationdate>2003</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20031113&DB=EPODOC&CC=CA&NR=2484563A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20031113&DB=EPODOC&CC=CA&NR=2484563A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GIBSON, JEFFREY SCOTT</creatorcontrib><creatorcontrib>RODGERS, CRAIG ALLEN</creatorcontrib><creatorcontrib>LAKE, ERIK STEPHEN</creatorcontrib><title>ADJUSTABLE MAGNETIC TRIP ASSEMBLY FOR CIRCUIT BREAKER</title><description>An adjustable magnetic trip unit (1) for a circuit breaker includes a torsio n spring (33) which applies a bias force to the plunger (15) of a trip solenoi d (7). 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In addition, a slide (71) with an inclined surface (85) bearing against the plunger (15) and coupled to the driven bevel gear (47), provides simultaneou s adjustment of plunger gap (67) with adjustment of the torsion spring force t o increase the range of adjustment.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRIC SWITCHES</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE DEVICES</subject><subject>RELAYS</subject><subject>SELECTORS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2003</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDB1dPEKDQ5xdPJxVfB1dPdzDfF0VggJ8gxQcAwOdvV18olUcPMPUnD2DHIO9QxRcApydfR2DeJhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfHOjkYmFiamZsaOhsZEKAEAmvwnHg</recordid><startdate>20031113</startdate><enddate>20031113</enddate><creator>GIBSON, JEFFREY SCOTT</creator><creator>RODGERS, CRAIG ALLEN</creator><creator>LAKE, ERIK STEPHEN</creator><scope>EVB</scope></search><sort><creationdate>20031113</creationdate><title>ADJUSTABLE MAGNETIC TRIP ASSEMBLY FOR CIRCUIT BREAKER</title><author>GIBSON, JEFFREY SCOTT ; RODGERS, CRAIG ALLEN ; LAKE, ERIK STEPHEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA2484563A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2003</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRIC SWITCHES</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE DEVICES</topic><topic>RELAYS</topic><topic>SELECTORS</topic><toplevel>online_resources</toplevel><creatorcontrib>GIBSON, JEFFREY SCOTT</creatorcontrib><creatorcontrib>RODGERS, CRAIG ALLEN</creatorcontrib><creatorcontrib>LAKE, ERIK STEPHEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GIBSON, JEFFREY SCOTT</au><au>RODGERS, CRAIG ALLEN</au><au>LAKE, ERIK STEPHEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ADJUSTABLE MAGNETIC TRIP ASSEMBLY FOR CIRCUIT BREAKER</title><date>2003-11-13</date><risdate>2003</risdate><abstract>An adjustable magnetic trip unit (1) for a circuit breaker includes a torsio n spring (33) which applies a bias force to the plunger (15) of a trip solenoi d (7). The torsion spring (33) is mounted on a driven bevel gear (47) and woun d by an adjustment knob (39) coupled to a driving bevel gear (51) to adjust th e current at which the solenoid (7) is activated. An indexer (37) having peripheral flates (61) which engage a seat (55) in the circuit breaker housi ng (3) provides a pluarlity of discrete positions of the adjustment knob (39). Depressing the adjustment knob (39) against a second spring (59) unseats the indexer (37) for rotation of the adjustment knob between settings. In addition, a slide (71) with an inclined surface (85) bearing against the plunger (15) and coupled to the driven bevel gear (47), provides simultaneou s adjustment of plunger gap (67) with adjustment of the torsion spring force t o increase the range of adjustment.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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language | eng ; fre |
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subjects | BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES RELAYS SELECTORS |
title | ADJUSTABLE MAGNETIC TRIP ASSEMBLY FOR CIRCUIT BREAKER |
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