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Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:
(12) Patent: | (11) CA 2470081 |
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(54) English Title: | DISPOSITIF DE CALAGE VARIABLE DE DEUX ETAGES D'AUBES FIXE SUR UN TURBOREACTEUR |
(54) French Title: | TWO-STAGE, VARIABLE-SETTING DEVICE FOR STATOR BLADES IN A TURBINE ENGINE |
Status: | Granted and Issued |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | LAVERY, DE BILLY, LLP |
(74) Associate agent: | |
(45) Issued: | 2011-08-02 |
(22) Filed Date: | 2004-06-18 |
(41) Open to Public Inspection: | 2004-12-20 |
Examination requested: | 2009-05-06 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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The pitch control mechanism (controlling the angular position) for stator blades in a turbojet may be adjusted separately for two adjacent stages of blades controlled by a common actuator means (10). To achieve this, the synchronization bar (9) located between the mechanisms leading to the two stages is inclined, this inclination being determined by a pin (22) and groove (23) connection with the casing, while another pin (26) and groove (27) connection is arranged between the synchronization bar (9) and one of the mechanisms. Strongly non-linear displacement laws between the two mechanisms may thus be controlled depending on the shapes and directions of the grooves (Figure 2).
Le mécanisme de commande de calage (position angulaire) d'aube de stator dans un turboréacteur peut être réglé séparément pour deux étages d'aube voisins commandés par un moyen actionneur 10 commun. Pour cela, la barre de synchronisation 9 entre les mécanismes menant aux deux étages prend une inclinaison déterminée par une liaison à ergot 22 et rainure 23 avec le carter, tandis qu'une autre liaison à ergot 26 et rainure 27 est ménagée entre la barre de synchronisation 9 et un des mécanismes. Des lois de déplacement fortement non linéaires entre les deux mécanismes peuvent ainsi être commandées d'après les formes et les directions des rainures. Figure 2.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Revocation of Agent Request | 2018-09-14 |
Appointment of Agent Request | 2018-09-14 |
Inactive: Agents merged | 2018-09-01 |
Inactive: Agents merged | 2018-08-30 |
Grant by Issuance | 2011-08-02 |
Inactive: Cover page published | 2011-08-01 |
Inactive: Final fee received | 2011-05-06 |
Pre-grant | 2011-05-06 |
Letter Sent | 2011-03-23 |
Notice of Allowance is Issued | 2011-03-23 |
4 | 2011-03-23 |
Notice of Allowance is Issued | 2011-03-23 |
Inactive: Approved for allowance (AFA) | 2011-03-02 |
Amendment Received - Voluntary Amendment | 2009-09-09 |
Letter Sent | 2009-06-02 |
All Requirements for Examination Determined Compliant | 2009-05-06 |
Request for Examination Received | 2009-05-06 |
Request for Examination Requirements Determined Compliant | 2009-05-06 |
Letter Sent | 2008-02-22 |
Letter Sent | 2008-02-22 |
Letter Sent | 2008-02-22 |
Letter Sent | 2008-02-22 |
Letter Sent | 2008-02-22 |
Letter Sent | 2008-02-22 |
Letter Sent | 2008-02-22 |
Inactive: IPC from MCD | 2006-03-12 |
Application Published (Open to Public Inspection) | 2004-12-20 |
Inactive: Cover page published | 2004-12-19 |
Inactive: First IPC assigned | 2004-11-23 |
Inactive: IPC assigned | 2004-11-23 |
Letter Sent | 2004-11-22 |
Inactive: Single transfer | 2004-10-18 |
Inactive: Courtesy letter - Evidence | 2004-07-13 |
Inactive: Filing certificate - No RFE (French) | 2004-07-12 |
Application Received - Regular National | 2004-07-12 |
There is no abandonment history.
The last payment was received on 2011-05-30
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
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Please refer to the CIPO
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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SNECMA |
Past Owners on Record |
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ALAIN JEAN CHARLES CHATEL |
DOMINIQUE RAULIN |
FLORENT RAINE |