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"Constant Power Electric System"
Abstract: An electric system comprising a single-phase permanent-magnet electric machine and a control system for driving the electric machine, wherein the control system sequentially excites and freewheels a winding of the electric machine so as maintain substantially constant power over at least one of an operating speed range spanning at least 10 krpm and an excitation voltage range extending between a minimum voltage and a maximum voltage, the minimum voltage being less than 80% of the maximum voltage. Additionally, a vacuum cleaner comprising the electric system.
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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
2018-09-29
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 | 7262-delnp-2011-GPA-(30-09-2011).pdf | 2011-09-30 |
| 1 | 7262-DELNP-2011-PETITION UNDER RULE 137 [12-07-2019(online)].pdf | 2019-07-12 |
| 2 | 7262-delnp-2011-Correspondence-Others-(30-09-2011).pdf | 2011-09-30 |
| 2 | 7262-DELNP-2011-RELEVANT DOCUMENTS [12-07-2019(online)].pdf | 2019-07-12 |
| 3 | 7262-DELNP-2011-IntimationOfGrant29-09-2018.pdf | 2018-09-29 |
| 3 | 7262-delnp-2011-GPA-(17-01-2012).pdf | 2012-01-17 |
| 4 | 7262-DELNP-2011-PatentCertificate29-09-2018.pdf | 2018-09-29 |
| 4 | 7262-delnp-2011-Form-3-(17-01-2012).pdf | 2012-01-17 |
| 5 | 7262-DELNP-2011-Correspondence-300118.pdf | 2018-02-05 |
| 5 | 7262-delnp-2011-Correspondence Others-(17-01-2012).pdf | 2012-01-17 |
| 6 | 7262-DELNP-2011-Power of Attorney-300118.pdf | 2018-02-05 |
| 6 | 7262-delnp-2011-Form-18-(18-01-2012).pdf | 2012-01-18 |
| 7 | 7262-delnp-2011-Correspondence-Others-(18-01-2012).pdf | 2012-01-18 |
| 7 | 7262-DELNP-2011-CLAIMS [25-01-2018(online)].pdf | 2018-01-25 |
| 8 | Abstract.jpg | 2012-04-30 |
| 8 | 7262-DELNP-2011-COMPLETE SPECIFICATION [25-01-2018(online)].pdf | 2018-01-25 |
| 9 | 7262-DELNP-2011-FER_SER_REPLY [25-01-2018(online)].pdf | 2018-01-25 |
| 9 | 7262-delnp-2011-Form-5.pdf | 2012-04-30 |
| 10 | 7262-delnp-2011-Form-3.pdf | 2012-04-30 |
| 10 | 7262-DELNP-2011-PETITION UNDER RULE 137 [25-01-2018(online)].pdf | 2018-01-25 |
| 11 | 7262-DELNP-2011-FER.pdf | 2017-07-25 |
| 11 | 7262-delnp-2011-Form-2.pdf | 2012-04-30 |
| 12 | 7262-delnp-2011-Form-1.pdf | 2012-04-30 |
| 12 | Form 3 [11-08-2016(online)].pdf | 2016-08-11 |
| 13 | 7262-delnp-2011-Correspondence Others-(23-05-2016).pdf | 2016-05-23 |
| 13 | 7262-delnp-2011-Drawings.pdf | 2012-04-30 |
| 14 | 7262-delnp-2011-Description (Complete).pdf | 2012-04-30 |
| 14 | 7262-delnp-2011-Form-1-(23-05-2016).pdf | 2016-05-23 |
| 15 | 7262-delnp-2011-Correspondence-others.pdf | 2012-04-30 |
| 15 | Other Patent Document [20-05-2016(online)].pdf | 2016-05-20 |
| 16 | 7262-delnp-2011-Claims.pdf | 2012-04-30 |
| 16 | Petition Under Rule 137 [20-05-2016(online)].pdf | 2016-05-20 |
| 17 | 7262-delnp-2011-Correspondence Others-(04-03-2016).pdf | 2016-03-04 |
| 17 | 7262-delnp-2011-Abstract.pdf | 2012-04-30 |
| 18 | 7262-delnp-2011-Form-1-(04-03-2016).pdf | 2016-03-04 |
| 18 | 7262-delnp-2011-GPA-(04-03-2016).pdf | 2016-03-04 |
| 19 | 7262-delnp-2011-Form-13-(04-03-2016).pdf | 2016-03-04 |
| 19 | 7262-delnp-2011-Form-3-(04-03-2016).pdf | 2016-03-04 |
| 20 | 7262-delnp-2011-Form-13-(04-03-2016).pdf | 2016-03-04 |
| 20 | 7262-delnp-2011-Form-3-(04-03-2016).pdf | 2016-03-04 |
| 21 | 7262-delnp-2011-Form-1-(04-03-2016).pdf | 2016-03-04 |
| 21 | 7262-delnp-2011-GPA-(04-03-2016).pdf | 2016-03-04 |
| 22 | 7262-delnp-2011-Abstract.pdf | 2012-04-30 |
| 22 | 7262-delnp-2011-Correspondence Others-(04-03-2016).pdf | 2016-03-04 |
| 23 | 7262-delnp-2011-Claims.pdf | 2012-04-30 |
| 23 | Petition Under Rule 137 [20-05-2016(online)].pdf | 2016-05-20 |
| 24 | Other Patent Document [20-05-2016(online)].pdf | 2016-05-20 |
| 24 | 7262-delnp-2011-Correspondence-others.pdf | 2012-04-30 |
| 25 | 7262-delnp-2011-Description (Complete).pdf | 2012-04-30 |
| 25 | 7262-delnp-2011-Form-1-(23-05-2016).pdf | 2016-05-23 |
| 26 | 7262-delnp-2011-Correspondence Others-(23-05-2016).pdf | 2016-05-23 |
| 26 | 7262-delnp-2011-Drawings.pdf | 2012-04-30 |
| 27 | 7262-delnp-2011-Form-1.pdf | 2012-04-30 |
| 27 | Form 3 [11-08-2016(online)].pdf | 2016-08-11 |
| 28 | 7262-DELNP-2011-FER.pdf | 2017-07-25 |
| 28 | 7262-delnp-2011-Form-2.pdf | 2012-04-30 |
| 29 | 7262-delnp-2011-Form-3.pdf | 2012-04-30 |
| 29 | 7262-DELNP-2011-PETITION UNDER RULE 137 [25-01-2018(online)].pdf | 2018-01-25 |
| 30 | 7262-DELNP-2011-FER_SER_REPLY [25-01-2018(online)].pdf | 2018-01-25 |
| 30 | 7262-delnp-2011-Form-5.pdf | 2012-04-30 |
| 31 | Abstract.jpg | 2012-04-30 |
| 31 | 7262-DELNP-2011-COMPLETE SPECIFICATION [25-01-2018(online)].pdf | 2018-01-25 |
| 32 | 7262-delnp-2011-Correspondence-Others-(18-01-2012).pdf | 2012-01-18 |
| 32 | 7262-DELNP-2011-CLAIMS [25-01-2018(online)].pdf | 2018-01-25 |
| 33 | 7262-DELNP-2011-Power of Attorney-300118.pdf | 2018-02-05 |
| 33 | 7262-delnp-2011-Form-18-(18-01-2012).pdf | 2012-01-18 |
| 34 | 7262-DELNP-2011-Correspondence-300118.pdf | 2018-02-05 |
| 34 | 7262-delnp-2011-Correspondence Others-(17-01-2012).pdf | 2012-01-17 |
| 35 | 7262-DELNP-2011-PatentCertificate29-09-2018.pdf | 2018-09-29 |
| 35 | 7262-delnp-2011-Form-3-(17-01-2012).pdf | 2012-01-17 |
| 36 | 7262-DELNP-2011-IntimationOfGrant29-09-2018.pdf | 2018-09-29 |
| 36 | 7262-delnp-2011-GPA-(17-01-2012).pdf | 2012-01-17 |
| 37 | 7262-delnp-2011-Correspondence-Others-(30-09-2011).pdf | 2011-09-30 |
| 37 | 7262-DELNP-2011-RELEVANT DOCUMENTS [12-07-2019(online)].pdf | 2019-07-12 |
| 38 | 7262-delnp-2011-GPA-(30-09-2011).pdf | 2011-09-30 |
| 38 | 7262-DELNP-2011-PETITION UNDER RULE 137 [12-07-2019(online)].pdf | 2019-07-12 |
Search Strategy
| 1 | search_strategy_7262_11-05-2017.pdf |