US3910356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable soil engaging attachments
Assignee: Individual
•
Filing: 1974-11-18
•
Granted: 1975-10-07
•
Expires: 1994-11-18
Abstract
Abstract An attachment for a cultivator includes an elongated soil engaging roller with longitudinal elements held around the circumference of the roller by supports. The supports are spaced apart profiled plates or pairs of plates having anchorages and apertured lugs alternatively positioned around their peripheries to affix and loosely retain the elements respectively. The elements are helically wound about a central tubular support which forms the axis of rotation for the roller. Alternative elements can be of different cross sections from one another and the elements can be tubes, rods and/or hollow oblong elements. The attachment is mounted to the rear of a cultivator on arms pivoted to the cultivator frame for vertical movements and/or adjustments with respect to rotary soil-working members of the cultivator.
Inventors
- 👤 Der Lely Cornelis Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:24
CPC Classifications
A; A01; A01B; A01B29/00; A01B29/04; A01B29/048
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
An attachment for connection to an agricultural implement movable over the ground, comprising an elongated roller having a centrally located axis of rotation and a plurality of longitudinal elements positioned around the circumference of said roller, support means on said roller around said axis of rotation and said support means comprising a plurality of pairs of circular plates, said plates of each pair being secured to one another and defining supports spaced along said axis, said plates having anchorages about their peripheries for securing some of said elongated elements in fixed positions, apertured lugs on said peripheries that receive and retain other said elongated elements, said anchorages each being located between Two of said lugs, said apertured lugs loosely holding said other elements and the latter being turnable in their respective apertured lugs and detachable from said attachment.
Claim 2
Dependent Claim
138 words
An attachment for connection to an agricultural implement movable over the ground, comprising an elongated roller having a centrally located axis of rotation and a plurality of longitudinal elements positioned around the circumference of said roller, support means on said roller around said axis of rotation and said support means comprising a plurality of pairs of circular plates, said plates of each pair being secured to one another and defining supports spaced along said axis, said plates having anchorages about their peripheries for securing some of said elongated elements in fixed positions, apertured lugs on said peripheries that receive and retain other said elongated elements, said anchorages each being located between Two of said lugs, said apertured lugs loosely holding said other elements and the latter being turnable in their respective apertured lugs and detachable from said attachment.
Claim 3
Dependent Claim
18 words
An attachment as claimed in claim 1, wherein those elements secured in said anchorages are oblong in crosssection.
Claim 4
Dependent Claim
117 words
An attachment for connection to an agricultural implement movable over the ground, comprising an elongated roller having a centrally located axis of rotation and a plurality of longitudinal elements positioned around the circumference of said roller, support means on said roller around said axis of rotation and said support means comprising a plurality of pairs of circular profiled plates, said plates of each pair being secured to one another and defining supports spaced along said axis, said plates having anchorages about their peripheries for securing some of said elongated elements, said anchorages being at least partly defined by sides of triangular regions of deformation, one side of which is located adjacent the peripheries of the said plates.
Claim 5
Dependent Claim
117 words
An attachment for connection to an agricultural implement movable over the ground, comprising an elongated roller having a centrally located axis of rotation and a plurality of longitudinal elements positioned around the circumference of said roller, support means on said roller around said axis of rotation and said support means comprising a plurality of pairs of circular profiled plates, said plates of each pair being secured to one another and defining supports spaced along said axis, said plates having anchorages about their peripheries for securing some of said elongated elements, said anchorages being at least partly defined by sides of triangular regions of deformation, one side of which is located adjacent the peripheries of the said plates.
Claim 6
Dependent Claim
36 words
An attachment as claimed in claim 3, wherein said elements are helically mounted on said pairs of plates across the width of said roller and at least part of said elements being fixed to said anchorages.
Claim 7
Dependent Claim
58 words
An attachment as claimed in claim 3, wherein said plates comprise apertured lugs on their peripheries that receive and retain some of said elongated elements, said anchorages each being located between two of said lugs, said apertured lugs loosely holding said other elements and the latter being turnable in their respective apertured lugs and detachable from said attachment.
Claim 8
Dependent Claim
21 words
An attachment as claimed in claim 3, wherein said regions of deformation of the plates of a pair are symmetrically matching.
Claim 9
Dependent Claim
35 words
An attachment as claimed in claim 6, wherein said regions of deformation of the plates of a pair define anchorages in the form of bases of cones having apices directed toward said axis of rotation.
Claim 10
Dependent Claim
57 words
An attachment as claimed in claim 3, wherein said roller is connected to frame and a plurality of soilworking members is rotatably mounted on a portion of said frame to extend in a row that extends transverse to the normal direction of travel of said implement, said roller being located to the rear of said working members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |