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(12) Patent: | (11) CA 2440995 |
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(54) English Title: | MAITRISE DE LA POSITION AXIALE D`UNE AUBE DE SOUFFLANTE |
(54) French Title: | CONTROL OF THE AXIAL POSITION OF A FAN BLADE |
Status: | Term Expired - Post Grant Beyond Limit |
(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: | 2011-02-08 |
(22) Filed Date: | 2003-09-15 |
(41) Open to Public Inspection: | 2004-03-18 |
Examination requested: | 2008-08-07 |
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 invention concerns a fan rotor comprising a disk (2) having a rim with a plurality of substantially axial grooves that are regularly spaced apart angularly, a plurality of removable blades (3) extending radially outwards from the periphery of said disk (2), each blade (3) having a blade root (4) received in a respective groove, a downstream flange plate secured to said disk (2) and against which the downstream faces of the blade roots are in abutment, and a removable upstream flange plate (12) secured to said disk (2) for the purpose of retaining the blade roots (4) in the grooves (5). The said rotor is characterized by the fact that the upstream flange plate (12) is fitted on its downstream face with resilient means for exerting sufficient force on the upstream faces of the blade roots, after assembly, to prevent any axial displacement of the blades during normal operation of the engine (barring exceptional events such as foreign object ingestion or blade loss).
L'invention concerne un rotor de soufflante comportant un disque (2) dont la jante présente une pluralité de rainures sensiblement axiales et régulièrement réparties angulairement, une pluralité d'aubes (3) amovibles qui s'étendent radialement vers l'extérieur à la périphérie dudit disque (2), chaque aube (3) comportant un pied d'aube (4) logeant dans une rainure, un flasque aval solidaire dudit disque (2) et contre lequel les faces aval des pieds d'aube sont en butée, et un flasque amont (12) amovible solidaire dudit disque (2) et destiné à retenir les pieds d'aube (4) dans les rainures (5). Ce rotor est caractérisé par le fait que le flasque amont (12) est équipé sur sa face aval de moyens élastiques destinés à exercer sur les faces amont des pieds d'aube, après montage, des efforts suffisants pour empêcher tout déplacement axial des aubes, lors du fonctionnement normal du moteur (hors évènements exceptionnels type ingestion de corps étrangers ou perte d'aubes).
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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Inactive: Expired (new Act pat) | 2023-09-15 |
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 | 2011-02-08 |
Inactive: Cover page published | 2011-02-07 |
Pre-grant | 2010-11-17 |
Inactive: Final fee received | 2010-11-17 |
Notice of Allowance is Issued | 2010-06-16 |
Letter Sent | 2010-06-16 |
4 | 2010-06-16 |
Notice of Allowance is Issued | 2010-06-16 |
Inactive: Approved for allowance (AFA) | 2010-06-08 |
Letter Sent | 2008-09-26 |
Request for Examination Requirements Determined Compliant | 2008-08-07 |
Request for Examination Received | 2008-08-07 |
All Requirements for Examination Determined Compliant | 2008-08-07 |
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 |
Inactive: Cover page published | 2004-03-18 |
Application Published (Open to Public Inspection) | 2004-03-18 |
Letter Sent | 2003-11-28 |
Inactive: First IPC assigned | 2003-10-29 |
Inactive: Single transfer | 2003-10-22 |
Inactive: Courtesy letter - Evidence | 2003-10-14 |
Inactive: Filing certificate - No RFE (French) | 2003-10-08 |
Application Received - Regular National | 2003-10-08 |
There is no abandonment history.
The last payment was received on 2010-08-23
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 BASSOT |
ALAIN MADEC |
JEAN-CLAUDE BONNY |
PATRICK REGHEZZA |
PHILIPPE EVEN |
PIERRE LAMOTHE |