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Patent US3960219A successfully refreshed from Google Patents.
US3960219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil cultivating implements
Assignee: Individual
•
Filing: 1974-04-22
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Granted: 1976-06-01
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Expires: 1994-04-22
Abstract
Abstract A soil cultivator has at least one rotor mounted for rotation about a horizontal axis and rows of rigid soil working tines are secured on the rotor to be driven through the soil in a direction opposite to the travel direction of the cultivator. The tines can be curved with their free ends oriented to the rear with respect to their direction of movement through the soil. Stationary tines can be affixed in front of the rotor so that the rotor tines are moved between the stationary tines. Two rotors can be mounted side-by-side on a common shaft or axis of rotation and the shaft journalled in side plates having edge rims. A row of rotatable disc-like supporting members is arranged zig zag on a beam and the beam has arms that are adjustably connected to the cultivator frame at the rear of the rotor. Projections on the bottoms of the members induce rotation thereof. The rotor or rotors can also be supported by an elongated roller having a helical rib. The frame of the cultivator has a coupling member that can be offset with respect to the frame and an adjusting feature enables the implement to be positioned so that the rotor's axis of rotation is non perpendicular to the direction of travel.
Inventors
- 👤 Cornelis van der Lely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:47
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/02; A01B33/021
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
142 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soilworking tines, driving means connected to said rotor and said tines, said driving means driving the tines through the soil in a direction generally parallel to the direction of travel of said implement, said tines each having a lower free end that is orientated rearwardly with respect to the normal direction of rotation of said rotor, said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation.
Claim 2
Dependent Claim
142 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soilworking tines, driving means connected to said rotor and said tines, said driving means driving the tines through the soil in a direction generally parallel to the direction of travel of said implement, said tines each having a lower free end that is orientated rearwardly with respect to the normal direction of rotation of said rotor, said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation.
Claim 3
Dependent Claim
41 words
An implement as claimed in claim 1, wherein said frame has a coupling member with adjusting means, whereby the axis of rotation of said rotor is positionable in a non-perpendicular direction relative to the normal direction of travel of said implement.
Claim 4
Dependent Claim
21 words
An implement as claimed in claim 1, wherein further tines are rigidly secured to said frame in front of the rotor.
Claim 5
Dependent Claim
29 words
An implement as claimed in claim 1, wherein said tines each include a soil-working portion, at least part of which is of uniformly curved configuration towards its free end.
Claim 6
Dependent Claim
37 words
An implement as claimed in claim 4, wherein said part is substantially rectangular in cross-section and tapers towards the free end, the diameter between opposite corners of a cross-section of that part varying at different locations therealong.
Claim 7
Dependent Claim
37 words
An implement as claimed in claim 5, wherein the maximum diameter between opposite corners of a cross-section of said curved part taken adjacent said free end, extends substantially parallel to the axis of rotation of said rotor.
Claim 8
Dependent Claim
42 words
An implement as claimed in claim 1, wherein said rotor has four rows of tines and said rows extend generally parallel to said axis of rotation and are angularly spaced apart from one another at 90° intervals around said axis of rotation.
Claim 9
Dependent Claim
39 words
An implement as claimed in claim 1, wherein said fastening portion has lugs that cooperate with notches in said holder and also has a screwthreaded part that receives a fastening nut to secure said fastening portion in said holder.
Claim 10
Dependent Claim
51 words
An implement as claimed in claim 1, wherein a horizontally disposed ground supporting member is positioned to the rear of said rotor to control the working depth of the rotor, said supporting member comprising at least one rotatable ground engaging support member which is freely turnable about a substantially vertical axis.
Claim 11
Dependent Claim
46 words
An implement as claimed in claim 1, wherein said tine holders are mounted on hollow tine supports and said supports are spaced from one another around said axis of rotation, said tine supports being secured to plates which extend substantially perpendicular to said axis of rotation.
Claim 12
Dependent Claim
199 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines mounted in generally straight rows, driving means connected to said rotor and said tines, said driving means connected to drive the tines through the soil in a direction generally parallel to the direction of travel of said implement, coupling means on the forward portion of said frame, said tines each having a lower free end that is orientated rearwardly with respect to the normal direction of rotation of said rotor, further tines being rigidly secured to said frame in a row in front of and adjacent said rotor, first mentioned said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation, said first-mentioned tines being movable between said further tines during their movement through the soil and the rotation of said rotor.
Claim 13
Dependent Claim
199 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines mounted in generally straight rows, driving means connected to said rotor and said tines, said driving means connected to drive the tines through the soil in a direction generally parallel to the direction of travel of said implement, coupling means on the forward portion of said frame, said tines each having a lower free end that is orientated rearwardly with respect to the normal direction of rotation of said rotor, further tines being rigidly secured to said frame in a row in front of and adjacent said rotor, first mentioned said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation, said first-mentioned tines being movable between said further tines during their movement through the soil and the rotation of said rotor.
Claim 14
Dependent Claim
44 words
An implement as claimed in claim 11, wherein said further tines each include a lower active portion which trails rearwardly with respect to the normal direction of travel of said implement and said portion is straight in configuration and has a polygonal cross-section part.
Claim 15
Dependent Claim
103 words
An inplement as claimed in claim 12, wherein further holders are mounted on said implement and said further tines each have a fastening portion retained in a corresponding further holder, said fastening portion carrying lugs which cooperate with notches at the lower end of the corresponding further holder and a screw-threaded part that is fitted with a fastening nut at an upper end of that holder, each further holder being supported on a respective arm which is inclined upwardly and forwardly from that holder with respect to the normal direction of travel and a screen is located at the top of each arm.
Claim 16
Dependent Claim
55 words
An implement as claimed in claim 12, wherein said polygonal cross-section part tapers towards a lower free end thereof, said part being shaped, whereby diagonals of the cross-section part, vary in magnitude therealong and hollow grooves are formed in said part and said grooves extend throughout substantially the whole of the lengths of said part.
Claim 17
Dependent Claim
134 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines, driving means connected to said rotor, said tines being driven through the soil in a direction generally parallel to the direction of travel of said implement, said tines being mounted in corresponding holders and said holders being mounted on spaced apart tine supports that extend generally parallel to said axis of rotation, each holder having a longitudinal axis and said tines each having a fastening portion mounted in a corresponding holder, the longitudinal axis of the holder and the fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation.
Claim 18
Dependent Claim
134 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines, driving means connected to said rotor, said tines being driven through the soil in a direction generally parallel to the direction of travel of said implement, said tines being mounted in corresponding holders and said holders being mounted on spaced apart tine supports that extend generally parallel to said axis of rotation, each holder having a longitudinal axis and said tines each having a fastening portion mounted in a corresponding holder, the longitudinal axis of the holder and the fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation.
Claim 19
Dependent Claim
146 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines, driving means connected to said rotor and said tines being driven through the soil in a direction generally parallel to the direction of travel of said implement, said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation, said fastening portion having lugs that cooperate with notches in said holder and also having a screw-threaded part that receives a fastening nut to secure said fastening portion in said holder.
Claim 20
Dependent Claim
146 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines, driving means connected to said rotor and said tines being driven through the soil in a direction generally parallel to the direction of travel of said implement, said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation, said fastening portion having lugs that cooperate with notches in said holder and also having a screw-threaded part that receives a fastening nut to secure said fastening portion in said holder.
Claim 21
Dependent Claim
168 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines, driving means connected to said rotor and said tines being driven through the soil in a direction generally parallel to the direction of travel of said implement, said tines each having a free end that is orientated rearwardly with respect to the normal direction of rotation of said rotor, said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation, said fastening portion having lugs that cooperate with notches in said holder and also having a screw-threaded part that receives a fastening nut to secure said fastening portion in said holder.
Claim 22
Dependent Claim
168 words
A soil cultivating implement comprising a frame movable over the ground and at least one rotor supported on said frame, said rotor being mounted for rotation about a substantially horizontal axis and having a plurality of elongated soil-working tines, driving means connected to said rotor and said tines being driven through the soil in a direction generally parallel to the direction of travel of said implement, said tines each having a free end that is orientated rearwardly with respect to the normal direction of rotation of said rotor, said tines each having a fastening portion mounted in a corresponding holder on support means of said rotor and said holder having a longitudinal axis, said longitudinal axis of the holder and said fastening portion extending substantially tangentially with respect to a circle concentric with said axis of rotation, said fastening portion having lugs that cooperate with notches in said holder and also having a screw-threaded part that receives a fastening nut to secure said fastening portion in said holder.
Claim 23
Dependent Claim
22 words
An implement as claimed in claim 17, wherein there are two side-by-side rotors mounted for rotation about the same axis of rotation.
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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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |