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(12) Patent: | (11) CA 1043002 |
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(21) Application Number: | 1043002 |
(54) English Title: | DEPTH INDICATION SYSTEM FOR TILLAGE IMPLEMENTS |
(54) French Title: | INDICATEUR DE PROFONDEUR DE CREUSAGE POUR MATERIEL ARATOIRE |
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 : | |
(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | 1978-11-21 |
(22) Filed Date: | 1974-06-13 |
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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ABSTRACT OF THE DISCLOSURE
This invention consists of a depth sensing and recording
device for agricultural implements where the depth of
operation for soil cultivation is critical.
In combination with the depth changing mechanism of the
implement it senses and records the true operating depth
at all times and makes this information available to
the operator at his station on the tractor or other prime
mover. It further enables him to change to a preselected
depth when desired.
Heretofore the depth settings for cultivation have been
made through the visual observation of the operator from
his station on the tractor, particularly when a plurality
of tillage implements are used in tandem. This gives rise
to errors in human judgment, which this invention over-
comes.
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.
Sorry, the representative drawing for patent document number 1043002 was not found.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-11 |
Inactive: IPC from MCD | 2006-03-11 |
Inactive: Expired (old Act Patent) latest possible expiry date | 1995-11-21 |
Grant by Issuance | 1978-11-21 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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JAMES M. SAKUNDIAK |
Past Owners on Record |
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None |