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US3706207A
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US
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Apparatus for burying a plastic drainage pipe line in the ground
Assignee: CORNELIUS WERNER KG
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Filing: 1971-02-22
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Granted: 1972-12-19
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Expires: 1991-02-22
Abstract
Abstract The apparatus comprises a coulter with a guide passage for the pipe extending therein from an opening in the upper part thereof to its rear edge and a nose projecting from the lower section of the coulter front edge. The nose is provided with a roof-like oscillatory edge member sloping upwardly from the nose peak to the coulter front edge. The apparatus suspended at a tractor and engaging the ground with its lower section can be dragged with a smaller tractor output or with higher speeds than similar tools without an oscillatory nose edge member.
Inventors
- 👤 Werner Cornelius
- 👤 Friedrich Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:38
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102; E02F5/103
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
126 words
Apparatus for burying a conduit in the earth comprising, in combination, a movable coulter support, a coulter vertically suspended from said support having an upper region, a front edge, a rear edge, and a bottom edge, a nose mounted on said coulter bottom edge projecting forwardly beyond said front edge and having a forward end, an oscillating edge member movably mounted upon said coulter above said nose and having a first end disposed adjacent said nose forward end and a second end disposed rearwardly with respect to the direction of movement of said coulter, said edge member being obliquely disposed to the horizontal inclining upwardly from said first end to said second end, and oscillating drive means connected to said edge member for producing oscillation thereof.
Claim 2
Dependent Claim
126 words
Apparatus for burying a conduit in the earth comprising, in combination, a movable coulter support, a coulter vertically suspended from said support having an upper region, a front edge, a rear edge, and a bottom edge, a nose mounted on said coulter bottom edge projecting forwardly beyond said front edge and having a forward end, an oscillating edge member movably mounted upon said coulter above said nose and having a first end disposed adjacent said nose forward end and a second end disposed rearwardly with respect to the direction of movement of said coulter, said edge member being obliquely disposed to the horizontal inclining upwardly from said first end to said second end, and oscillating drive means connected to said edge member for producing oscillation thereof.
Claim 3
Dependent Claim
25 words
Apparatus in accordance with claim 1, wherein said coulter defines a plane and the oscillation movement of said edge member is in said coulter plane.
Claim 4
Dependent Claim
28 words
Apparatus in accordance with claim 1, wherein said nose projects beyond said coulter front edge a distance approximately equal to the submergence depth of the coulter bottom edge.
Claim 5
Dependent Claim
22 words
Apparatus in accordance with claim 1, wherein said oscillating drive means includes a motor mounted on said upper region of said coulter.
Claim 6
Dependent Claim
38 words
In an apparatus as in claim 1, an elongated serrated member movably mounted upon said coulter front edge adjacent said edge member for vertical movement on said coulter, said oscillating drive means being connected to said serrated member.
Claim 7
Dependent Claim
24 words
Apparatus in accordance with claim 5, wherein said serrated member is formed as a rod connecting said oscillating drive means with said edge member.
Claim 8
Dependent Claim
35 words
Apparatus in accordance with claim 5, wherein said serrated member is formed as a first rod driven by said drive means and said edge member is connected with said drive means by a second rod.
Claim 9
Dependent Claim
49 words
In an apparatus as in claim 1, pivot means mounting said edge member upon said coulter for pivotal movement about an axis transverse to the length of said nose whereby said edge member oscillates in a substantially vertical plane substantially parallel to the direction of movement of said coulter.
Claim 10
Dependent Claim
23 words
Apparatus as in claim 8 wherein said pivot means is located adjacent said nose forward end and said edge member constitutes a lever.
Claim 11
Dependent Claim
14 words
Apparatus in accordance with claim 8, wherein said edge member comprises a two-armed lever.
Claim 12
Dependent Claim
22 words
Apparatus in accordance with claim 10, wherein the axis of oscillation of said two-armed lever is disposed approximately in the center thereof.
Claim 13
Dependent Claim
47 words
Apparatus as in claim 10 wherein said edge member first end projects ahead of said nose in the direction of coulter movement and said pivot means is disposed adjacent to, but spaced from, said first end to produce lever oscillations of small amplitude at said first end.
Claim 14
Dependent Claim
20 words
Apparatus in accordance with clAim 8, wherein said edge member is inclined towards the horizontal by 20* to 40* .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |