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"Control Of An Electric Machine"
Abstract: A method of controlling a single-phase permanent-magnet electric machine, the method comprising: sequentially exciting and freewheeling a winding of the electric machine, wherein the winding is excited by an excitation voltage and is free wheeled over a freewheel angle; and varying the freewheel angle in response to changes in the excitation voltage. Additionally, a control system for an electric machine, and a vacuum cleaner incorporating the control system and electric machine.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
21 September 2011
Publication Number
51/2012
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2020-01-29
Renewal Date
Applicants
DYSON TECHNOLOGY LIMITED
TETBURY HILL MALMESBURY
WILTSHIRE, SN16 0RP
UNITED KINGDOM
Inventors
1. CLOTHIER, ANDREW CHARLTON
C/O DYSON TECHNOLOGY LIMITED
TETBURY HILL
MALMESBURY
WILTSHIRE, SN16 0RP
UNITED KINGDOM
2. CELIK, TUNCAY
C/O DYSON TECHNOLOGY LIMITED
TETBURY HILL
MALMESBURY
WILTSHIRE, SN16 0RP
UNITED KINGDOM
Specification
NA
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 7261-delnp-2011-GPA-(30-09-2011).pdf | 2011-09-30 |
| 1 | 7261-DELNP-2011-IntimationOfGrant29-01-2020.pdf | 2020-01-29 |
| 2 | 7261-delnp-2011-Correspondence-Others-(30-09-2011).pdf | 2011-09-30 |
| 2 | 7261-DELNP-2011-PatentCertificate29-01-2020.pdf | 2020-01-29 |
| 3 | 7261-delnp-2011-GPA-(30-01-2012).pdf | 2012-01-30 |
| 3 | 7261-DELNP-2011-FORM 3 [27-08-2019(online)].pdf | 2019-08-27 |
| 4 | 7261-delnp-2011-Form-3-(30-01-2012).pdf | 2012-01-30 |
| 4 | 7261-DELNP-2011-CLAIMS [21-08-2018(online)].pdf | 2018-08-21 |
| 5 | 7261-delnp-2011-Form-18-(30-01-2012).pdf | 2012-01-30 |
| 5 | 7261-DELNP-2011-COMPLETE SPECIFICATION [21-08-2018(online)].pdf | 2018-08-21 |
| 6 | 7261-DELNP-2011-FER_SER_REPLY [21-08-2018(online)].pdf | 2018-08-21 |
| 6 | 7261-delnp-2011-Correspondence-others-(30-01-2012).pdf | 2012-01-30 |
| 7 | 7261-DELNP-2011-PETITION UNDER RULE 137 [21-08-2018(online)].pdf | 2018-08-21 |
| 7 | 7261-delnp-2011-Correspondence Others-(30-01-2012).pdf | 2012-01-30 |
| 8 | Abstract.jpg | 2012-04-30 |
| 8 | 7261-DELNP-2011-FORM 4(ii) [21-05-2018(online)].pdf | 2018-05-21 |
| 9 | 7261-DELNP-2011-FER.pdf | 2017-11-21 |
| 9 | 7261-delnp-2011-Form-5.pdf | 2012-04-30 |
| 10 | 7261-delnp-2011-Form-3.pdf | 2012-04-30 |
| 10 | Form 3 [11-08-2016(online)].pdf | 2016-08-11 |
| 11 | 7261-delnp-2011-Correspondence Others-(23-05-2016).pdf | 2016-05-23 |
| 11 | 7261-delnp-2011-Form-2.pdf | 2012-04-30 |
| 12 | 7261-delnp-2011-Form-1-(23-05-2016).pdf | 2016-05-23 |
| 12 | 7261-delnp-2011-Form-1.pdf | 2012-04-30 |
| 13 | 7261-delnp-2011-Drawings.pdf | 2012-04-30 |
| 13 | Other Patent Document [20-05-2016(online)].pdf | 2016-05-20 |
| 14 | 7261-delnp-2011-Description (Complete).pdf | 2012-04-30 |
| 14 | Petition Under Rule 137 [20-05-2016(online)].pdf | 2016-05-20 |
| 15 | 7261-delnp-2011-Correspondence Others-(04-03-2016).pdf | 2016-03-04 |
| 15 | 7261-delnp-2011-Correspondence-others.pdf | 2012-04-30 |
| 16 | 7261-delnp-2011-Claims.pdf | 2012-04-30 |
| 16 | 7261-delnp-2011-Form-1-(04-03-2016).pdf | 2016-03-04 |
| 17 | 7261-delnp-2011-Form-13-(04-03-2016).pdf | 2016-03-04 |
| 17 | 7261-delnp-2011-Abstract.pdf | 2012-04-30 |
| 18 | 7261-delnp-2011-Form-3-(04-03-2016).pdf | 2016-03-04 |
| 18 | 7261-delnp-2011-GPA-(04-03-2016).pdf | 2016-03-04 |
| 19 | 7261-delnp-2011-Form-3-(04-03-2016).pdf | 2016-03-04 |
| 19 | 7261-delnp-2011-GPA-(04-03-2016).pdf | 2016-03-04 |
| 20 | 7261-delnp-2011-Abstract.pdf | 2012-04-30 |
| 20 | 7261-delnp-2011-Form-13-(04-03-2016).pdf | 2016-03-04 |
| 21 | 7261-delnp-2011-Claims.pdf | 2012-04-30 |
| 21 | 7261-delnp-2011-Form-1-(04-03-2016).pdf | 2016-03-04 |
| 22 | 7261-delnp-2011-Correspondence Others-(04-03-2016).pdf | 2016-03-04 |
| 22 | 7261-delnp-2011-Correspondence-others.pdf | 2012-04-30 |
| 23 | Petition Under Rule 137 [20-05-2016(online)].pdf | 2016-05-20 |
| 23 | 7261-delnp-2011-Description (Complete).pdf | 2012-04-30 |
| 24 | 7261-delnp-2011-Drawings.pdf | 2012-04-30 |
| 24 | Other Patent Document [20-05-2016(online)].pdf | 2016-05-20 |
| 25 | 7261-delnp-2011-Form-1-(23-05-2016).pdf | 2016-05-23 |
| 25 | 7261-delnp-2011-Form-1.pdf | 2012-04-30 |
| 26 | 7261-delnp-2011-Correspondence Others-(23-05-2016).pdf | 2016-05-23 |
| 26 | 7261-delnp-2011-Form-2.pdf | 2012-04-30 |
| 27 | 7261-delnp-2011-Form-3.pdf | 2012-04-30 |
| 27 | Form 3 [11-08-2016(online)].pdf | 2016-08-11 |
| 28 | 7261-DELNP-2011-FER.pdf | 2017-11-21 |
| 28 | 7261-delnp-2011-Form-5.pdf | 2012-04-30 |
| 29 | 7261-DELNP-2011-FORM 4(ii) [21-05-2018(online)].pdf | 2018-05-21 |
| 29 | Abstract.jpg | 2012-04-30 |
| 30 | 7261-DELNP-2011-PETITION UNDER RULE 137 [21-08-2018(online)].pdf | 2018-08-21 |
| 30 | 7261-delnp-2011-Correspondence Others-(30-01-2012).pdf | 2012-01-30 |
| 31 | 7261-DELNP-2011-FER_SER_REPLY [21-08-2018(online)].pdf | 2018-08-21 |
| 31 | 7261-delnp-2011-Correspondence-others-(30-01-2012).pdf | 2012-01-30 |
| 32 | 7261-delnp-2011-Form-18-(30-01-2012).pdf | 2012-01-30 |
| 32 | 7261-DELNP-2011-COMPLETE SPECIFICATION [21-08-2018(online)].pdf | 2018-08-21 |
| 33 | 7261-delnp-2011-Form-3-(30-01-2012).pdf | 2012-01-30 |
| 33 | 7261-DELNP-2011-CLAIMS [21-08-2018(online)].pdf | 2018-08-21 |
| 34 | 7261-delnp-2011-GPA-(30-01-2012).pdf | 2012-01-30 |
| 34 | 7261-DELNP-2011-FORM 3 [27-08-2019(online)].pdf | 2019-08-27 |
| 35 | 7261-DELNP-2011-PatentCertificate29-01-2020.pdf | 2020-01-29 |
| 35 | 7261-delnp-2011-Correspondence-Others-(30-09-2011).pdf | 2011-09-30 |
| 36 | 7261-delnp-2011-GPA-(30-09-2011).pdf | 2011-09-30 |
| 36 | 7261-DELNP-2011-IntimationOfGrant29-01-2020.pdf | 2020-01-29 |
Search Strategy
| 1 | 7261delnp2011search_02-08-2017.pdf |