US3899030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil compressing members
Assignee: Individual
•
Filing: 1973-09-04
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Granted: 1975-08-12
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Expires: 1993-09-04
Abstract
Abstract An agricultural implement for attachment to a prime mover has soil working members, such as tines, for cultivating purposes and a soil compressing member rotatably mounted on adjustable arms to trail the soil working members. The soil compressing member is an elongated structure with spaced apart, plate-shaped, supports that have holders arranged around each of their peripheries. Elongated soil contacting flexible elements are connectable to any of the holders on the supports so that the elements can be helically or otherwise disposed on the supports for the working width of the implement. Varying the position of the arms results in changing the position of the soil working members relative to the soil compressing member and the working depth of the former.
Inventors
- 👤 Der Lely Ary Van
- 👤 Cornelis Johannes Gerardus Bom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:10
CPC Classifications
A; A01; A01B; A01B29/00; A01B29/04; A01B29/048
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
256 words
An agricultural implement comprising a rotary harrow with a frame supporting a plurality of side-by-side rotable soil-working members, said soil-working members being rotatable about upwardly extending axes and having downwardly extending tines, a supporting roller connected to said frame, said roller being rotatable about a substantially horizontal axis that extends transverse to the direction of travel at the rear of said soilworking members, said roller including spaced apart supports and a plurality of elongated elements helically wound around said supports and said axis of rotation, the lengths of said elements extending at substantially equal distances from said axis, said supports having aperture means around their outer peripheries that receive said elements and said elements comprising the outer soil contacting surface of said roller, the diameter of said roller being substantially equal to the distance between the upwardly extending axes of adjacent soil-working members, said supports including an outer support at each end of the roller and a plurality of further intermediate supports, each elongated element having opposite ends connected to the outer supports and said ends being positionable to subtend an angle that is substantially twice the angle subtended by the ends of successive elements on each outer support, said angle being measured with respect to said axis of rotation of the roller when said roller is seen in side elevation, said roller being connected to the harrow through arm means to support same and control the working depths of said soil-working members, said arm means and roller being vertically adjustable with respect to said frame.
Claim 2
Dependent Claim
256 words
An agricultural implement comprising a rotary harrow with a frame supporting a plurality of side-by-side rotable soil-working members, said soil-working members being rotatable about upwardly extending axes and having downwardly extending tines, a supporting roller connected to said frame, said roller being rotatable about a substantially horizontal axis that extends transverse to the direction of travel at the rear of said soilworking members, said roller including spaced apart supports and a plurality of elongated elements helically wound around said supports and said axis of rotation, the lengths of said elements extending at substantially equal distances from said axis, said supports having aperture means around their outer peripheries that receive said elements and said elements comprising the outer soil contacting surface of said roller, the diameter of said roller being substantially equal to the distance between the upwardly extending axes of adjacent soil-working members, said supports including an outer support at each end of the roller and a plurality of further intermediate supports, each elongated element having opposite ends connected to the outer supports and said ends being positionable to subtend an angle that is substantially twice the angle subtended by the ends of successive elements on each outer support, said angle being measured with respect to said axis of rotation of the roller when said roller is seen in side elevation, said roller being connected to the harrow through arm means to support same and control the working depths of said soil-working members, said arm means and roller being vertically adjustable with respect to said frame.
Claim 3
Dependent Claim
32 words
An implement as claimed in claim 1, wherein eight elongated soil-contacting elements are spaced apart from one another at regular intervals around said supports and the axis of rotation of said roller.
Claim 4
Dependent Claim
19 words
An implement as claimed in claim 1, wherein at least one of said elongated elements is circular in cross-section.
Claim 5
Dependent Claim
17 words
An implement as claimed in claim 1, wherein there are twelve soil-working members positioned in a row.
Claim 6
Dependent Claim
34 words
An implement as claimed in claim 1, wherein said supports are vertically positioned plate-like members with openings formed adjacent their peripheries and said elongated elements are retained in said openings by retaining pin means.
Claim 7
Dependent Claim
15 words
An implement as claimed in claim 1, wherein each elongated element is a flexible tube.
Claim 8
Dependent Claim
16 words
An implement as claimed in claim 1, wherein said elongated elements are made of spring steel.
Claim 9
Dependent Claim
107 words
An implement as claimed in claim 1, wherein said roller is rotatably mounted on a central shaft and the ends of said shaft are held by said arm means which is pivotably connected to said frame of the harrow, adjusting means connecting said frame and said arm means, said arm means including a pair of angular arms which extend forward with their forward ends being pivotably connected to the forward portion of said frame, pins being secured to said arms intermediate their lengths and said pins are vertically slideable in slots located at the rear of said frame to adjust the working depth of said working members.
Claim 10
Dependent Claim
57 words
An implement as claimed in claim 1, wherein said supporting roller is rotatably mounted on an elongated shaft and at least one of said supports is turnable around said shaft to change the angles subtended by the elongated elements, said support being provided with locking means to retain it in any chosen position relative to said shaft.
Claim 11
Dependent Claim
15 words
An implement as claimed in claim 9, wherein said turnable support is an outer support.
Claim 12
Dependent Claim
34 words
An implement as claimed in claim 1, wherein said aperture means comprises openings and said openings are U-shaped, peripheral recesses in said supports, the open ends of said recesses being closed by retaining means.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |