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(12) Patent: | (11) CA 2489079 |
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(54) English Title: | KNIFE GATE VALVE |
(54) French Title: | ROBINET-VANNE A GUILLOTINE |
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: | LAMBERT INTELLECTUAL PROPERTY LAW |
(74) Associate agent: | |
(45) Issued: | 2010-10-19 |
(22) Filed Date: | 2004-12-21 |
(41) Open to Public Inspection: | 2006-06-21 |
Examination requested: | 2007-12-20 |
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: | None |
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A valve for controlling the flow of materials is provided. The valve has a valve body having a bore, a guide attached to the valve body, a gate movable within the guide into and out of the bore, and an actuator for the gate, the bore of the valve body having a profile where the gate enters the bore, and the gate having a concave leading edge conforming to a profile of the bore. The valve may be us ed in throttling applications.
Valve servant à régler le débit d'une substance. Le corps de la valve comprend un alésage, un guide fixé au corps de la valve, une vanne mobile glissant dans le guide et se prolongeant dans l'alésage, de même qu'un actionneur pour la vanne. L'alésage du corps de la vanne est profilé à l'endroit ou la vanne pénètre dans l'alésage et celle-ci est munie d'un bord d'attaque concave dont le profil s'adapte à celui de l'alésage. La valve peut être utilisée pour régler un débit.
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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Revocation of Agent Requirements Determined Compliant | 2020-04-22 |
Appointment of Agent Requirements Determined Compliant | 2020-04-22 |
Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Grant by Issuance | 2010-10-19 |
Inactive: Cover page published | 2010-10-18 |
Inactive: Final fee received | 2010-08-09 |
Pre-grant | 2010-08-09 |
Letter Sent | 2010-06-07 |
Notice of Allowance is Issued | 2010-06-07 |
Notice of Allowance is Issued | 2010-06-07 |
Inactive: Approved for allowance (AFA) | 2010-05-13 |
Amendment Received - Voluntary Amendment | 2010-02-05 |
Inactive: S.30(2) Rules - Examiner requisition | 2009-08-06 |
Letter Sent | 2008-02-19 |
Small Entity Declaration Request Received | 2008-01-21 |
Letter Sent | 2008-01-17 |
Letter Sent | 2008-01-17 |
Inactive: Correspondence - Transfer | 2007-12-20 |
Request for Examination Requirements Determined Compliant | 2007-12-20 |
Small Entity Declaration Request Received | 2007-12-20 |
All Requirements for Examination Determined Compliant | 2007-12-20 |
Small Entity Declaration Determined Compliant | 2007-12-20 |
Small Entity Declaration Request Received | 2007-12-20 |
Request for Examination Received | 2007-12-20 |
Application Published (Open to Public Inspection) | 2006-06-21 |
Inactive: Cover page published | 2006-06-20 |
Inactive: Office letter | 2006-05-09 |
Inactive: Single transfer | 2006-04-21 |
Inactive: First IPC assigned | 2005-03-11 |
Inactive: Filing certificate - No RFE (English) | 2005-01-19 |
Filing Requirements Determined Compliant | 2005-01-19 |
Application Received - Regular National | 2005-01-19 |
There is no abandonment history.
The last payment was received on 2009-12-17
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
Please refer to the CIPO Patent Fees web page to see all current fee amounts.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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SUMMIT VALVE AND CONTROLS INC. |
Past Owners on Record |
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MICHEL LEROUX |