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(12) Patent: | (11) CA 2293885 |
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(54) English Title: | GROUND WORKING DEVICE |
(54) French Title: | DISPOSITIF DE TRAVAIL DU SOL |
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: | LAMBERT INTELLECTUAL PROPERTY LAW |
(74) Associate agent: | |
(45) Issued: | 2008-08-26 |
(22) Filed Date: | 1999-12-30 |
(41) Open to Public Inspection: | 2001-06-30 |
Examination requested: | 2004-09-28 |
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 ground working device is formed from a sub-frame having a first side and a second side, plural discs mounted for rotation on the sub-frame between the first side and the second side about an axis that extends from the first side to the second side; and a set of scoops mounted on each disc in ground contacting position. The scoops efficiently lift the ground surface material, which falls to the ground in a sorted manner with coarser material on top. A motor is operatively connected to the plural discs for rotating the discs about the axis. Each scoop in each set of scoops has a ground working face that extends transversely to the disc on which the respective scoop is mounted. The scoops each have concave ground contacting surfaces. Each scoop is received in a respective slot in the disc in which the respective scoop is mounted. The ground working device is mounted on a main frame, which is provided with ground engaging wheels. The sub-frame is retractably mounted on the main frame.
Un dispositif de travail du sol est formé d'un châssis auxiliaire possédant un premier flanc et un second flanc, plusieurs disques montés pour la rotation sur le châssis auxiliaire entre le premier flanc et le second flanc autour d'un axe qui s'étend du premier flanc au second flanc; et un ensemble de racloirs montés sur chaque disque dans le sol en position de contact. Les racloirs soulèvent efficacement les matériaux à la surface du sol, qui tombent sur le sol d'une façon déterminée avec les matériaux les plus grossiers sur le dessus. Un moteur est raccordé de façon opérationnelle aux différents disques pour la rotation des dits disques autour de l'axe. Chaque racloir dans chaque ensemble de racloirs possède une face de travail du sol qui s'étend transversalement au disque sur lequel le racloir respectif est monté. Chacun des racloirs possède des surfaces de contact au sol concaves. Chaque racloir est reçu dans une fente respective au sein du disque dans lequel le racloir respectif est monté. Le dispositif de travail du sol est monté sur un châssis principal qui est fourni avec les roues d'engagement au sol. Le châssis auxiliaire est monté de manière rétractable sur le châssis principal.
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 |
Inactive: Expired (new Act pat) | 2019-12-30 |
Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Letter Sent | 2009-04-30 |
Inactive: Office letter | 2009-02-06 |
Grant by Issuance | 2008-08-26 |
Inactive: Cover page published | 2008-08-25 |
Inactive: Final fee received | 2008-06-03 |
Pre-grant | 2008-06-03 |
Amendment After Allowance (AAA) Received | 2008-06-03 |
Inactive: Office letter | 2008-05-13 |
Amendment After Allowance (AAA) Received | 2008-04-03 |
Inactive: Amendment after Allowance Fee Processed | 2008-04-03 |
Inactive: Adhoc Request Documented | 2008-01-03 |
Small Entity Declaration Determined Compliant | 2007-12-07 |
Small Entity Declaration Request Received | 2007-12-07 |
Notice of Allowance is Issued | 2007-12-03 |
Letter Sent | 2007-12-03 |
4 | 2007-12-03 |
Notice of Allowance is Issued | 2007-12-03 |
Inactive: Received pages at allowance | 2007-11-22 |
Revocation of Agent Request | 2007-11-22 |
Appointment of Agent Request | 2007-11-22 |
Inactive: Office letter | 2007-11-16 |
Inactive: Approved for allowance (AFA) | 2007-10-30 |
Inactive: Office letter | 2007-06-14 |
Appointment of Agent Requirements Determined Compliant | 2007-06-14 |
Revocation of Agent Requirements Determined Compliant | 2007-06-14 |
Inactive: Office letter | 2007-06-14 |
Revocation of Agent Request | 2007-05-23 |
Appointment of Agent Request | 2007-05-23 |
Revocation of Agent Request | 2007-05-23 |
Appointment of Agent Request | 2007-05-23 |
Amendment Received - Voluntary Amendment | 2007-05-07 |
Inactive: S.30(2) Rules - Examiner requisition | 2006-11-07 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: <RFE date> RFE removed | 2004-10-08 |
Letter Sent | 2004-10-08 |
Inactive: Adhoc Request Documented | 2004-10-08 |
Inactive: Entity size changed | 2004-10-08 |
Request for Examination Received | 2004-09-28 |
Request for Examination Requirements Determined Compliant | 2004-09-28 |
All Requirements for Examination Determined Compliant | 2004-09-28 |
Inactive: Entity size changed | 2004-01-07 |
Application Published (Open to Public Inspection) | 2001-06-30 |
Inactive: Cover page published | 2001-06-29 |
Letter Sent | 2000-03-08 |
Inactive: First IPC assigned | 2000-02-25 |
Inactive: Single transfer | 2000-02-18 |
Inactive: Filing certificate - No RFE (English) | 2000-01-28 |
Inactive: Applicant deleted | 2000-01-26 |
Application Received - Regular National | 2000-01-26 |
There is no abandonment history.
The last payment was received on 2007-12-07
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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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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ROAD BADGER INC. |
Past Owners on Record |
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LARRY G. CULVER |
RAY W. GILLARD |