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(12) Patent: | (11) CA 2564289 |
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(54) English Title: | SADDLE BEARING LINER FOR AXIAL PISTON PUMP |
(54) French Title: | GARNITURE DE COUSSINET EN BERCEAU POUR POMPE A PISTON AXIAL |
Status: | Expired and beyond the Period of Reversal |
(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: | SMART & BIGGAR LP |
(74) Associate agent: | |
(45) Issued: | 2009-06-30 |
(22) Filed Date: | 2002-03-28 |
(41) Open to Public Inspection: | 2002-10-17 |
Examination requested: | 2006-11-07 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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A saddle bearing liner (30) for a variable displacement axial piston pump (10) includes two axially-spaced apart bearing surfaces (62, 64) with an offset central section (54) integrally joining them. A hollow projection (80) extends radially from the convex side of the pressure bearing section (50) and is received with a recess (82) of the housing (12) to locate the liner (30). The liner (30) has radially extending ledges (70, 72) which mate with surfaces (74, 76) of the housing (12) to inhibit skewing of the bearing liner (30) relative to the axis of the bearing surfaces (62, 64). The projection (80) is hollow and opens to the bearing surface (62) so that pressurized fluid from the housing (12) can be injected between the bearing surface (62) and the mating surface (22) of the swashblock (20). The projection (80) also prevents the liner (30) from rotating about the bearing surface axis.
Une garniture de coussinet en berceau (30) pour pompe à pistons axiaux à déplacement variable (10) comprend deux surfaces (62, 64) de coussinet axialement séparées avec une section centrale décalée (54) les joignant intégralement. Une protubérance creuse (80) prenant naissance radialement sur la face convexe de la section de coussinet de pression (50) et est reçue avec un enfoncement (82) du carter (12) de façon à positionner la garniture (30). La garniture (30) comporte des arêtes orientées radialement (70, 72) qui s'adaptent aux surfaces (74, 46) du carter (12) de façon à empêcher la perte d'alignement de la garniture de coussinet (30) par rapport à l'axe des surfaces de garniture (62, 64). La protubérance (80), qui est creuse, s'ouvre en direction de la surface du coussinet (62) de façon que le fluide sous pression sortant du carter (12) puisse être injecté entre la surface du coussinet (62) et la surface complémentaire (22) du bloc oscillant (20). La protubérance (80) empêche également la garniture (30) de tourner autour de l'axe de la surface du coussinet.
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: IPC deactivated | 2021-11-13 |
Inactive: IPC assigned | 2021-05-28 |
Inactive: IPC expired | 2020-01-01 |
Time Limit for Reversal Expired | 2013-03-28 |
Letter Sent | 2012-03-28 |
Grant by Issuance | 2009-06-30 |
Inactive: Cover page published | 2009-06-29 |
Pre-grant | 2009-01-28 |
Inactive: Final fee received | 2009-01-28 |
Notice of Allowance is Issued | 2008-10-07 |
Letter Sent | 2008-10-07 |
Notice of Allowance is Issued | 2008-10-07 |
Inactive: Approved for allowance (AFA) | 2008-09-23 |
Inactive: First IPC assigned | 2007-02-27 |
Inactive: Cover page published | 2006-12-19 |
Inactive: First IPC assigned | 2006-12-13 |
Inactive: IPC assigned | 2006-12-13 |
Inactive: IPC assigned | 2006-12-08 |
Inactive: IPC assigned | 2006-12-08 |
Inactive: Office letter | 2006-12-06 |
Letter sent | 2006-11-23 |
Divisional Requirements Determined Compliant | 2006-11-16 |
Letter Sent | 2006-11-16 |
Application Received - Regular National | 2006-11-16 |
Application Received - Divisional | 2006-11-07 |
Request for Examination Requirements Determined Compliant | 2006-11-07 |
All Requirements for Examination Determined Compliant | 2006-11-07 |
Application Published (Open to Public Inspection) | 2002-10-17 |
There is no abandonment history.
The last payment was received on 2009-03-30
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
Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
Please refer to the CIPO
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web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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MF (application, 3rd anniv.) - standard | 03 | 2005-03-29 | 2006-11-07 |
Application fee - standard | 2006-11-07 | ||
Request for examination - standard | 2006-11-07 | ||
MF (application, 2nd anniv.) - standard | 02 | 2004-03-29 | 2006-11-07 |
Registration of a document | 2006-11-07 | ||
MF (application, 4th anniv.) - standard | 04 | 2006-03-28 | 2006-11-07 |
MF (application, 5th anniv.) - standard | 05 | 2007-03-28 | 2007-03-23 |
MF (application, 6th anniv.) - standard | 06 | 2008-03-28 | 2008-03-12 |
Final fee - standard | 2009-01-28 | ||
MF (application, 7th anniv.) - standard | 07 | 2009-03-30 | 2009-03-30 |
MF (patent, 8th anniv.) - standard | 2010-03-29 | 2010-02-25 | |
MF (patent, 9th anniv.) - standard | 2011-03-28 | 2011-03-24 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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THE OILGEAR COMPANY |
Past Owners on Record |
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ANTHONY M. CLAAS |
MARK J. MATENAER |
REGINALD J. GOSS |
ROBERT D. CHUNG |