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An Overcurrent Protection Device
Abstract: An thermal overcurrent protection device for motor starters, the said device comprising housing (39), plurality of means (8,9,10) adapted for sensing the instantaneous thermal state of the mechanism provided in the said housing (39), plurality of means (11,12,13,14,18 and 19) in operative connection to the said means for sensing the state and adapted for indicating switching state of the mechanism, means (21 and 31) adapted for actuating contact means (33,34 and 35) and providing definite displacement between the said two means, means (16) in operative connection with the plurality of means for indicating the switching state and adapted for manual test function, selector means(1)adapted for resetting operation of the mechanism and start contact(3)inbuilt in reduced size(45mm generalized).
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
20 May 2004
Publication Number
14/2007
Publication Type
INA
Invention Field
ELECTRONICS
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2017-10-26
Renewal Date
Applicants
LARSEN & TOUBRO LIMITED
L&T HOUSE, BALLARD ESTATE, MUMBAI-400 001,
Inventors
1. SUBHASISH NATH
LARSEN & TOUBRO LIMITED, ELECTRICAL SECTOR(EBG), SWITCHHEAR DESIGN & DEVELOPMENT CENTRE, POWAI WORKS(EAST), SAKI VIHAR ROAD, MUMBAI-400 072.
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 574-mum-2004-form 18(15-10-2007).pdf | 2007-10-15 |
| 2 | 574-mum-2004-correspondence(15-10-2007).pdf | 2007-10-15 |
| 3 | 574-MUM-2004-CORRESPONDENCE(13-10-2008).pdf | 2008-10-13 |
| 4 | 574-MUM-2004-CORRESPONDENCE(02-03-2009).pdf | 2009-03-02 |
| 5 | 574-MUM-2004-CORRESPONDENCE(18-12-2009).pdf | 2009-12-18 |
| 6 | 574-MUM-2004-CORRESPONDENCE(IPO)-(FER)-(24-05-2011).pdf | 2011-05-24 |
| 7 | 574-MUM-2004-REPLY TO EXAMINATION REPORT(21-11-2011).pdf | 2011-11-21 |
| 8 | 574-MUM-2004-CHINESE DOCUMENT(21-11-2011).pdf | 2011-11-21 |
| 9 | 574-MUM-2004-CORRESPONDENCE(IPO)-(HEARING NOTICE)-(12-10-2012).pdf | 2012-10-12 |
| 10 | 574-MUM-2004-CORRESPONDENCE(17-10-2012).pdf | 2012-10-17 |
| 11 | 574-MUM-2004-CORRESPONDENCE(IPO)-(HEARING NOTICE)-(30-05-2013).pdf | 2013-05-30 |
| 12 | 574-MUM-2004-PatentCertificate26-10-2017.pdf | 2017-10-26 |
| 13 | 574-MUM-2004-IntimationOfGrant26-10-2017.pdf | 2017-10-26 |
| 14 | 574-MUM-2004-FORM 4 [29-01-2018(online)].pdf | 2018-01-29 |
| 15 | 574-MUM-2004-RELEVANT DOCUMENTS [30-03-2018(online)].pdf | 2018-03-30 |
| 16 | abstract1.jpg | 2018-08-09 |
| 17 | 574-MUM-2004_EXAMREPORT.pdf | 2018-08-09 |
| 18 | 574-MUM-2004-REPLY TO HEARING(19-7-2013).pdf | 2018-08-09 |
| 19 | 574-MUM-2004-REPLY TO EXAMINATION REPORT(23-3-2011).pdf | 2018-08-09 |
| 20 | 574-mum-2004-power of attorney(20-5-2004).pdf | 2018-08-09 |
| 21 | 574-mum-2004-power of attorney(2-7-2005).pdf | 2018-08-09 |
| 22 | 574-MUM-2004-MARKED COPY(19-7-2013).pdf | 2018-08-09 |
| 23 | 574-MUM-2004-GENERAL POWER OF ATTORNEY(23-3-2011).pdf | 2018-08-09 |
| 24 | 574-mum-2004-form 5(8-7-2005).pdf | 2018-08-09 |
| 25 | 574-MUM-2004-FORM 5(19-7-2013).pdf | 2018-08-09 |
| 26 | 574-mum-2004-form 5(19-5-2005).pdf | 2018-08-09 |
| 27 | 574-MUM-2004-FORM 3(23-9-2009).pdf | 2018-08-09 |
| 28 | 574-mum-2004-form 3(20-5-2004).pdf | 2018-08-09 |
| 29 | 574-MUM-2004-FORM 3(19-7-2013).pdf | 2018-08-09 |
| 30 | 574-mum-2004-form 2(title page)-(provisional)-(20-5-2004).pdf | 2018-08-09 |
| 31 | 574-mum-2004-form 2(title page)-(complete)-(19-5-2005).pdf | 2018-08-09 |
| 32 | 574-mum-2004-form 2(provisional)-(20-5-2004).pdf | 2018-08-09 |
| 33 | 574-mum-2004-form 2(complete)-(19-5-2005).pdf | 2018-08-09 |
| 34 | 574-mum-2004-form 13(11-7-2005).pdf | 2018-08-09 |
| 35 | 574-mum-2004-form 1(20-5-2004).pdf | 2018-08-09 |
| 36 | 574-MUM-2004-DRAWING(23-3-2011).pdf | 2018-08-09 |
| 37 | 574-mum-2004-drawing(19-5-2005).pdf | 2018-08-09 |
| 38 | 574-mum-2004-description(provisional)-(20-5-2004).pdf | 2018-08-09 |
| 39 | 574-mum-2004-description(complete)-(19-5-2005).pdf | 2018-08-09 |
| 40 | 574-MUM-2004-Correspondence-150115.pdf | 2018-08-09 |
| 41 | 574-mum-2004-correspondence(ipo)-(15-3-2005).pdf | 2018-08-09 |
| 42 | 574-MUM-2004-CORRESPONDENCE(30-8-2012).pdf | 2018-08-09 |
| 43 | 574-MUM-2004-CORRESPONDENCE(30-5-2013).pdf | 2018-08-09 |
| 44 | 574-MUM-2004-CORRESPONDENCE(27-7-2009).pdf | 2018-08-09 |
| 45 | 574-MUM-2004-CORRESPONDENCE(26-7-2010).pdf | 2018-08-09 |
| 46 | 574-MUM-2004-CORRESPONDENCE(23-9-2009).pdf | 2018-08-09 |
| 47 | 574-MUM-2004-CORRESPONDENCE(20-7-2015).pdf | 2018-08-09 |
| 48 | 574-mum-2004-correspondence 2(20-5-2004).pdf | 2018-08-09 |
| 49 | 574-MUM-2004-CLAIMS(AMENDED)-(19-7-2013).pdf | 2018-08-09 |
| 50 | 574-mum-2004-claims(19-5-2005).pdf | 2018-08-09 |
| 52 | 574-mum-2004-annexure to form 3(8-7-2005).pdf | 2018-08-09 |
| 53 | 574-MUM-2004-ANNEXURE TO FORM 3(23-3-2011).pdf | 2018-08-09 |
| 54 | 574-mum-2004-abstract(19-5-2005).pdf | 2018-08-09 |
| 55 | 574-MUM-2004-RELEVANT DOCUMENTS [30-03-2019(online)].pdf | 2019-03-30 |
| 56 | 574-MUM-2004-RELEVANT DOCUMENTS [30-03-2020(online)].pdf | 2020-03-30 |
| 57 | 574-MUM-2004-POWER OF AUTHORITY [20-03-2021(online)].pdf | 2021-03-20 |
| 58 | 574-MUM-2004-FORM-16 [20-03-2021(online)].pdf | 2021-03-20 |
| 59 | 574-MUM-2004-ASSIGNMENT WITH VERIFIED COPY [20-03-2021(online)].pdf | 2021-03-20 |
| 60 | 574-MUM-2004-RELEVANT DOCUMENTS [01-10-2021(online)].pdf | 2021-10-01 |
| 61 | 574-MUM-2004-RELEVANT DOCUMENTS [30-09-2022(online)].pdf | 2022-09-30 |
| 62 | 574-MUM-2004-RELEVANT DOCUMENTS [26-09-2023(online)].pdf | 2023-09-26 |
| 63 | 574-MUM-2004-FORM-27 [24-09-2025(online)].pdf | 2025-09-24 |
| 64 | 574-MUM-2004-FORM-27 [24-09-2025(online)]-1.pdf | 2025-09-24 |