Title of Invention	CONTACT ARMS FEATURING CURRENT LIMITING AND BLOW OUT CAPABILITIES IN A CIRCUIT INTERRUPTER
Abstract	The invention provides a circuit interrupter incorporating profiles designed to facilitate arc blow out action during circuit interruption. Accordingly, as per a single break embodiment of the invention a first contact arm is designed to have a part substantially parallel to the arc initially created during contacts opening. In order to provide arc-repulsing forces along continued arc time, a second contact is provided with a profile, which offers repulsive forces on the arc as the parting between the contact arms increases. As per another embodiment of the invention the contact arm featuring arc blowout and current limiting capabilities arc incorporated in a rotary double break circuit interrupter.

Title of Invention

CONTACT ARMS FEATURING CURRENT LIMITING AND BLOW OUT CAPABILITIES IN A CIRCUIT INTERRUPTER

Abstract

The invention provides a circuit interrupter incorporating profiles designed to facilitate arc blow out action during circuit interruption. Accordingly, as per a single break embodiment of the invention a first contact arm is designed to have a part substantially parallel to the arc initially created during contacts opening. In order to provide arc-repulsing forces along continued arc time, a second contact is provided with a profile, which offers repulsive forces on the arc as the parting between the contact arms increases. As per another embodiment of the invention the contact arm featuring arc blowout and current limiting capabilities arc incorporated in a rotary double break circuit interrupter.

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Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=DuLt/4wT3Jm5oq/L0px6og==&loc=vsnutRQWHdTHa1EUofPtPQ==

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Patent Number

272384

Indian Patent Application Number

636/MUM/2006

PG Journal Number

14/2016

Publication Date

01-Apr-2016

Grant Date

31-Mar-2016

Date of Filing

21-Apr-2006

Name of Patentee

LARSEN & TOUBRO LIMITED

Applicant Address

L & T HOUSE, BALLARD ESTATE, MUMBAI 400 001,

Inventors:

#	Inventor's Name	Inventor's Address
1	NIDHI DUGGAL	SWITCHGEAR DESIGN & DEVELOPMENT CENTER, LARSEN & TOUBRO LIMITED, ELECTRICAL SECTOR (EBG) POWAI WORKS (EAST), GATE NO. 7 SAKI VIHAR ROAD, MUMBAI 400 072

PCT International Classification Number

H01H9/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA