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(12) Patent: | (11) CA 2180136 |
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(54) English Title: | A BLADE FOR A MIXING DEVICE |
(54) French Title: | PALE POUR DISPOSITIF MELANGEUR |
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: | ADE & COMPANY INC. |
(74) Associate agent: | |
(45) Issued: | 2006-08-29 |
(86) PCT Filing Date: | 1994-11-03 |
(87) Open to Public Inspection: | 1996-05-17 |
Examination requested: | 2000-01-06 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/NO1994/000174 |
(87) International Publication Number: | WO 1996014142 |
(85) National Entry: | 1996-06-27 |
(30) Application Priority Data: | None |
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A blade for a mixing device, especially for the mixing of different
particles or different liquids, where the blade is mounted on a substantially
horizontal
rotor and extends in a straight line perpendicular to the rotor axis. The
blade has a
curved cross-section with a front part or first portion facing in the
direction of motion of
the particles or liquids in the mixing device, a substantially smaller rear
part or second
portion facing opposite the direction of motion, and a part lying in between
and
connecting the front and rear parts and substantially parallel to the rotor,
axis; such
that a substantial portion of the particles or liquids are thrown forwards,
and smaller
portions are thrown directly outwards and backwards, the particles or liquids
thereby
being mixed with particles or liquids thrown forward by a following blade.
La présente invention concerne une pale destinée à un dispositif mélangeur, notamment un appareil mélangeant différentes particules ou différents liquides, laquelle pale se monte sur des rotors sensiblement horizontaux. Chaque pale est caractérisée par une première face présentant une incurvation orientée dans le sens de déplacement des particules. Dans le sens radial, la forme des pales présente des lignes droites disposées perpendiculairement à l'axe du rotor. La pale incurvée est constituée d'une première partie (3) orientée dans le sens de déplacement des masses, d'une deuxième partie (4) sensiblement plus petite, orientée dans le sens inverse du déplacement, et d'une partie intermédiaire reliant les deux premières parties précitées et disposée sensiblement parallèlement à l'axe du rotor. Cette structure permet de propulser, d'une part vers l'avant une partie substantielle de masses, tandis qu'une moindre partie subit une centrifugation, et d'autre part vers l'arrière, les particules venant ainsi se mélanger aux particules propulsées vers l'avant à partir de la pale suivante.
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.
2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.
Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Event History , Maintenance Fee and Payment History should be consulted.
Description | Date |
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Inactive: IPC expired | 2022-01-01 |
Inactive: Expired (new Act pat) | 2014-11-03 |
Inactive: Late MF processed | 2012-11-19 |
Letter Sent | 2012-11-05 |
Inactive: Agents merged | 2012-03-01 |
Small Entity Declaration Determined Compliant | 2007-08-21 |
Grant by Issuance | 2006-08-29 |
Inactive: Cover page published | 2006-08-28 |
Notice of Allowance is Issued | 2006-06-21 |
Inactive: Approved for allowance (AFA) | 2006-05-31 |
Letter Sent | 2006-05-30 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2006-05-09 |
Pre-grant | 2006-05-09 |
Withdraw from Allowance | 2006-05-09 |
Final Fee Paid and Application Reinstated | 2006-05-09 |
Reinstatement Request Received | 2006-05-09 |
Deemed Abandoned - Conditions for Grant Determined Not Compliant | 2005-12-22 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2005-11-03 |
Notice of Allowance is Issued | 2005-06-22 |
Notice of Allowance is Issued | 2005-06-22 |
Letter Sent | 2005-06-22 |
Inactive: Approved for allowance (AFA) | 2005-05-12 |
Letter Sent | 2004-12-22 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2004-12-07 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2004-12-07 |
Amendment Received - Voluntary Amendment | 2004-12-07 |
Reinstatement Request Received | 2004-12-07 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2004-11-03 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2003-12-08 |
Inactive: S.30(2) Rules - Examiner requisition | 2003-06-06 |
Letter Sent | 2003-05-14 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2003-04-28 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2002-11-04 |
Letter Sent | 2002-03-20 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2002-03-13 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2001-11-05 |
Inactive: Status info is complete as of Log entry date | 2000-01-17 |
Letter Sent | 2000-01-17 |
Inactive: Application prosecuted on TS as of Log entry date | 2000-01-17 |
Request for Examination Requirements Determined Compliant | 2000-01-06 |
All Requirements for Examination Determined Compliant | 2000-01-06 |
Application Published (Open to Public Inspection) | 1996-05-17 |
Abandonment Date | Reason | Reinstatement Date |
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2006-05-09 | ||
2005-12-22 | ||
2005-11-03 | ||
2004-12-07 | ||
2004-11-03 | ||
2002-11-04 | ||
2001-11-05 |
The last payment was received on 2006-05-09
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.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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GEIR NORDAHL |
Past Owners on Record |
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None |