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"An Improved Commutator For Electrical Machines Having Reduced Weight Relaibility Adaptable For Strategic Applications"
Abstract: An improved commutator for electrical machines having reduced weight with reliability adaptable for strategic application; comprising: - a plurality of current carrying copper segments (1) connected to a number of armature coils of the electrical machine; - atleast one mica separator sheet (5) ,dispo~ between each of the plurality of copper segments (1) to electrically isolate the segments (1); - a steel hub (4) in two halves supporting and holding together the copper segments (1) and the mica separator sheets (5), the steel hub having a threaded segment and an inside diameter stripped from the understressed locations of the hub (4), characterized in that each copper segment (1) is stripped by remOVing material from the inside diameter to configure atleast four profiles" to form the hub (4) as a discontinuous member, and in that the two halves of the hub (4) being connected by directly joining a plurality of bolts (3) to the threaded segment of the hub (4) without using any nuts, thereby reducing the weight of the commutator.
Notices, Deadlines & Correspondence
Patent Information
Applicants
BHARAT HEAVY ELECTRICALS LIMITED
Inventors
1. VIJAYABALAN CHELLAPPA GNANARAJ
2. RUDRARAJU VENKATA RAMA KRISHNAM RAJU
3. DR. BHATTACHARYA JAYANT LAL
4. NAGAR NARENDRA NATH
Specification
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 216-kol-2005-specification.pdf | 2011-10-06 |
| 1 | LP-216-KOL-2005-02-02-2023-ALL DOCUMENTS.pdf | 2023-02-02 |
| 2 | 216-KOL-2005-PA.pdf | 2011-10-06 |
| 2 | 216-KOL-2005-RELEVANT DOCUMENTS [15-03-2018(online)].pdf | 2018-03-15 |
| 3 | Form 27 [30-03-2017(online)].pdf | 2017-03-30 |
| 3 | 216-KOL-2005-OTHERS.pdf | 2011-10-06 |
| 4 | Other Patent Document [22-03-2017(online)].pdf | 2017-03-22 |
| 4 | 216-kol-2005-form 3.pdf | 2011-10-06 |
| 5 | 216-KOL-2005_EXAMREPORT.pdf | 2016-06-30 |
| 5 | 216-KOL-2005-FORM 2.pdf | 2011-10-06 |
| 6 | 262293-(28-03-2016)-FORM-27.pdf | 2016-03-28 |
| 6 | 216-kol-2005-form 18.pdf | 2011-10-06 |
| 7 | 216-KOL-2005-FORM 1.pdf | 2011-10-06 |
| 7 | 216-KOL-2005-(01-04-2015)-FORM-27.pdf | 2015-04-01 |
| 8 | 216-KOL-2005-EXAMINATION REPORT REPLY RECIEVED.pdf | 2011-10-06 |
| 8 | 216-KOL-2005-(28-11-2014)-CORRESPONDENCE.pdf | 2014-11-28 |
| 9 | 216-KOL-2005-(28-08-2012)CORRESPONDENCE.pdf | 2012-08-28 |
| 9 | 216-KOL-2005-DRAWINGS.pdf | 2011-10-06 |
| 10 | 216-KOL-2005-(04-04-2012)-CORRESPONDENCE.pdf | 2012-04-04 |
| 10 | 216-KOL-2005-DESCRIPTION (COMPLETE).pdf | 2011-10-06 |
| 11 | 216-KOL-2005-(04-04-2012)-FORM-13.pdf | 2012-04-04 |
| 11 | 216-KOL-2005-CORRESPONDENCE.pdf | 2011-10-06 |
| 12 | 216-KOL-2005-(04-04-2012)-OTHERS.pdf | 2012-04-04 |
| 12 | 216-KOL-2005-CORRESPONDENCE-1.1.pdf | 2011-10-06 |
| 13 | 216-KOL-2005-ABSTRACT.pdf | 2011-10-06 |
| 13 | 216-kol-2005-claims.pdf | 2011-10-06 |
| 14 | 216-KOL-2005-AMANDED CLAIMS.pdf | 2011-10-06 |
| 15 | 216-KOL-2005-ABSTRACT.pdf | 2011-10-06 |
| 15 | 216-kol-2005-claims.pdf | 2011-10-06 |
| 16 | 216-KOL-2005-(04-04-2012)-OTHERS.pdf | 2012-04-04 |
| 16 | 216-KOL-2005-CORRESPONDENCE-1.1.pdf | 2011-10-06 |
| 17 | 216-KOL-2005-CORRESPONDENCE.pdf | 2011-10-06 |
| 17 | 216-KOL-2005-(04-04-2012)-FORM-13.pdf | 2012-04-04 |
| 18 | 216-KOL-2005-DESCRIPTION (COMPLETE).pdf | 2011-10-06 |
| 18 | 216-KOL-2005-(04-04-2012)-CORRESPONDENCE.pdf | 2012-04-04 |
| 19 | 216-KOL-2005-(28-08-2012)CORRESPONDENCE.pdf | 2012-08-28 |
| 19 | 216-KOL-2005-DRAWINGS.pdf | 2011-10-06 |
| 20 | 216-KOL-2005-(28-11-2014)-CORRESPONDENCE.pdf | 2014-11-28 |
| 20 | 216-KOL-2005-EXAMINATION REPORT REPLY RECIEVED.pdf | 2011-10-06 |
| 21 | 216-KOL-2005-(01-04-2015)-FORM-27.pdf | 2015-04-01 |
| 21 | 216-KOL-2005-FORM 1.pdf | 2011-10-06 |
| 22 | 216-kol-2005-form 18.pdf | 2011-10-06 |
| 22 | 262293-(28-03-2016)-FORM-27.pdf | 2016-03-28 |
| 23 | 216-KOL-2005-FORM 2.pdf | 2011-10-06 |
| 23 | 216-KOL-2005_EXAMREPORT.pdf | 2016-06-30 |
| 24 | 216-kol-2005-form 3.pdf | 2011-10-06 |
| 24 | Other Patent Document [22-03-2017(online)].pdf | 2017-03-22 |
| 25 | Form 27 [30-03-2017(online)].pdf | 2017-03-30 |
| 25 | 216-KOL-2005-OTHERS.pdf | 2011-10-06 |
| 26 | 216-KOL-2005-RELEVANT DOCUMENTS [15-03-2018(online)].pdf | 2018-03-15 |
| 26 | 216-KOL-2005-PA.pdf | 2011-10-06 |
| 27 | LP-216-KOL-2005-02-02-2023-ALL DOCUMENTS.pdf | 2023-02-02 |
| 27 | 216-kol-2005-specification.pdf | 2011-10-06 |