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(12) Patent: | (11) CA 2237001 |
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(54) English Title: | FROZEN TOP SOIL CUTTER |
(54) French Title: | OUTIL DE DECAPAGE DE SOLS GELES |
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: | SMART & BIGGAR LP |
(74) Associate agent: | |
(45) Issued: | 1999-08-31 |
(22) Filed Date: | 1998-07-10 |
(41) Open to Public Inspection: | 1998-08-10 |
Examination requested: | 1998-07-10 |
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 device for cutting, fracturing and pulverizing top soil to a predetermined
depth, whereby by the top soil can subsequently be collected by conventional means. The
device comprises a frame being in the shape of a V with two wings rearwardly and sidewardly
extending from a forward, central point, the frame to be carried behind a tractor, a plurality
of spaced cutting wheels rotatably suspended from the frame at the same distance from the
frame, the wheels of sufficient size and strength to cut frozen soil to a predetermined depth,
the wheels oriented in parallel, straightforward relationship with respect to the frame, a first
of the wheels positioned at the central point and the other wheels spaced outwardly and
rearwardly on each side of the first wheel. The device comprises means associated with the
frame to depress the cutting wheels to a predetermined depth in the frozen soil and the wheels
spaced from each other so that, in operation, the first wheel vertically cuts the soil along a
center line, to the predetermined depth, and wheels on each side of the first wheel
progressively vertically cut and horizontally fracture towards the center line the soil to the
predetermined depth. A device according to the present invention provides a simple design
for cutting frozen top soil to a predetermined depth. The device according to the present
invention is one which produces relatively low wear of the functional parts, relative to
conventional devices. It provides increased integrity of surface soil when stripping in frozen
ground conditions.
Cette invention concerne un dispositif servant à défoncer, briser et pulvériser la terre végétale jusqu'à une profondeur prédéterminée en vue du ramassage de cette terre selon des moyens conventionnels. L'objet de l'invention comprend un bâti en forme de V dont les deux ailes s'étendent vers l'arrière et les côtés à partir d'un point central, ledit bâti étant à monter derrière un tracteur, et des roues de travail du sol suspendues à une même distance du bâti. Ces roues ont diamètre et une résistance appropriés pour défoncer la terre végétale gelé jusqu'à une profondeur prédéterminée; elles sont toutes parallèles à l'axe de symétrie longitudinal du bâti, la première étant placé à la pointe du V et les autres progressivement décalées vers l'arrière et les côtés. Le dispositif objet de l'invention comporte un moyen pour enfoncer les roues à une profondeur prédéterminée dans le sol gelé, roues qui sont disposées de manière que la première fasse une entaille verticale le long de l'axe de symétrie longitudinal du bâti et que les autres fassent une entaille parallèle à la première et pousse le sol vers la première entaille pour le briser jusqu'à une profondeur prédéterminée. Le dispositif objet de l'invention se caractérise par la simplicité de mode de défoncement d'un sol gelé jusqu'à une certaine profondeur et par un mode de travail qui produit relativement peu d'usure par rapport aux engins conventionnels. En plus, le décapage par temps de gel à l'aide de ce dispositif a des effets moins destructeurs sur le sol laissé en place. et compriment.
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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Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Inactive: Expired (new Act pat) | 2018-07-10 |
Change of Address or Method of Correspondence Request Received | 2018-01-12 |
Inactive: Office letter | 2006-09-21 |
Inactive: Corrective payment - s.78.6 Act | 2006-09-12 |
Inactive: Entity size changed | 2002-07-12 |
Grant by Issuance | 1999-08-31 |
Inactive: Cover page published | 1999-08-30 |
Letter sent | 1999-08-10 |
Advanced Examination Determined Compliant - paragraph 84(1)(a) of the Patent Rules | 1999-08-10 |
Pre-grant | 1999-06-10 |
Inactive: Final fee received | 1999-06-10 |
Notice of Allowance is Issued | 1999-05-12 |
Letter Sent | 1999-05-12 |
Notice of Allowance is Issued | 1999-05-12 |
Inactive: Approved for allowance (AFA) | 1999-04-29 |
Amendment Received - Voluntary Amendment | 1999-03-02 |
Inactive: S.30(2) Rules - Examiner requisition | 1998-11-27 |
Inactive: Filing certificate - RFE (English) | 1998-09-30 |
Request for Priority Received | 1998-09-15 |
Application Published (Open to Public Inspection) | 1998-08-10 |
Inactive: IPC assigned | 1998-07-27 |
Classification Modified | 1998-07-27 |
Inactive: IPC assigned | 1998-07-27 |
Inactive: First IPC assigned | 1998-07-27 |
Letter Sent | 1998-07-21 |
Inactive: Filing certificate - RFE (English) | 1998-07-20 |
Application Received - Regular National | 1998-07-20 |
Inactive: Advanced examination (SO) fee processed | 1998-07-10 |
Request for Examination Requirements Determined Compliant | 1998-07-10 |
All Requirements for Examination Determined Compliant | 1998-07-10 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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DOUGLAS A. BIEGEL |
JEFFREY D. BIEGEL |
BRENT C. BIEGEL |
Past Owners on Record |
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None |