Patent US3945441A successfully refreshed from Google Patents.
US3945441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil cultivating implements
Assignee: Individual
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Filing: 1973-06-19
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Granted: 1976-03-23
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Expires: 1993-06-19
Abstract
Abstract A cultivator for pedestrian operation which has rotatable soil working members mounted on upright shafts and a rear supporting member with driving means that both rotates the soil working members as well as the rear supporting member to operate and propel the implement. A forward supporting member is pivoted to the frame and can be adjusted about a horizontal axis to regulate soil working depths and for transport. Preferably, the rear and forward supporting members are each rotatable and pivoted to the frame to turn about a common axis. These members are articulated by arms to an upright spindle that can be turned to simultaneously move the supporting members vertically. The rear supporting member has elongated rods with bends intermediate their ends to form a soil smoothing member.
Inventors
- 👤 Cornelis van der Lely
- 👤 Ary van der Lely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:47
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/08; A01B33/087; A01B27/00; A01B33/06; A01B33/065; A01B49/00; A01B49/02; A01B49/022; A01B49/025; B; B62; B62D; B62D51/00; B62D51/04; B62D51/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
207 words
A soil cultivating implement comprising a frame and at least one rotatable soil-working member mounted on an upwardly extending shaft supported by said frame, said implement having driving means connected to said shaft and said soil-working member to rotate same about a substantially vertical axis during operation, a ground engaging elongated roller member connected to said frame, said roller member having a substantially horizontal driven rotary shaft and a periphery comprised of a plurality of elongated rod-like resilient elements which extend in the general direction of the axis of rotation, said roller member extending transverse to the normal direction of travel at the rear of said frame to support the implement, said driving means being interconnected to said driven shaft to rotate said roller member and propel the implement, an engine being mounted on said frame in driving connection with said driving means, said engine being positioned directly above said soil-working member on top of said frame, said roller member being pivotally connected to said frame through adjusting arm means that raises and lowers said frame relative to the ground, said adjusting means comprising two arms supporting the ends of said horizontal shaft and at least one of said arms forming a driving connection for said roller.
Claim 2
Dependent Claim
207 words
A soil cultivating implement comprising a frame and at least one rotatable soil-working member mounted on an upwardly extending shaft supported by said frame, said implement having driving means connected to said shaft and said soil-working member to rotate same about a substantially vertical axis during operation, a ground engaging elongated roller member connected to said frame, said roller member having a substantially horizontal driven rotary shaft and a periphery comprised of a plurality of elongated rod-like resilient elements which extend in the general direction of the axis of rotation, said roller member extending transverse to the normal direction of travel at the rear of said frame to support the implement, said driving means being interconnected to said driven shaft to rotate said roller member and propel the implement, an engine being mounted on said frame in driving connection with said driving means, said engine being positioned directly above said soil-working member on top of said frame, said roller member being pivotally connected to said frame through adjusting arm means that raises and lowers said frame relative to the ground, said adjusting means comprising two arms supporting the ends of said horizontal shaft and at least one of said arms forming a driving connection for said roller.
Claim 3
Dependent Claim
219 words
A soil cultivating implement comprising a frame and at least one rotatable soil-working member mounted on an upwardly extending shaft supported by said frame, said implement having driving means connected to said shaft and said soil-working member to rotate same about a substantially vertical axis during operation, a ground engaging elongated roller member connected to said frame, said roller member having a substantially horizontal rotary driven shaft and a periphery of elongated rod-like elements which extend in the direction of the axis of rotation, said roller member extending transverse to the normal direction of travel and being located at the rear of said frame to support the implement, said driving means being interconnected to the driven shaft of said roller member to rotate same and propel the implement, an engine being mounted on said frame and in driving connection with said driving means, said engine being positioned directly above said soil-working member on top of said frame, a further supporting member being connected to said frame and positioned in front of said soil-working member, said roller member being pivotally connected to said frame through adjusting arm means that is interconnected to the frame to raise and lower the frame relative to the ground, said adjusting means comprising at least one arm which forms a driving connection for said roller.
Claim 4
Dependent Claim
219 words
A soil cultivating implement comprising a frame and at least one rotatable soil-working member mounted on an upwardly extending shaft supported by said frame, said implement having driving means connected to said shaft and said soil-working member to rotate same about a substantially vertical axis during operation, a ground engaging elongated roller member connected to said frame, said roller member having a substantially horizontal rotary driven shaft and a periphery of elongated rod-like elements which extend in the direction of the axis of rotation, said roller member extending transverse to the normal direction of travel and being located at the rear of said frame to support the implement, said driving means being interconnected to the driven shaft of said roller member to rotate same and propel the implement, an engine being mounted on said frame and in driving connection with said driving means, said engine being positioned directly above said soil-working member on top of said frame, a further supporting member being connected to said frame and positioned in front of said soil-working member, said roller member being pivotally connected to said frame through adjusting arm means that is interconnected to the frame to raise and lower the frame relative to the ground, said adjusting means comprising at least one arm which forms a driving connection for said roller.
Claim 5
Dependent Claim
30 words
An implement as claimed in claim 2, wherein said further supporting member is located substantially centrally between the lateral sides of said implement when the latter is viewed in plan.
Claim 6
Dependent Claim
39 words
An implement as claimed in claim 2, wherein both the roller member and the further supporting member are pivotally interconnected with said frame through the adjusting arm means and simultaneously adjustable horizontally relative to the level of said frame.
Claim 7
Dependent Claim
53 words
An implement as claimed in claim 4, wherein said frame includes two spaced apart beams that extend transverse to the direction of travel and said adjusting means interconnects said beams with shaft means that provides a common pivot axis, said shaft means being located between said beams and being secured to said frame.
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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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |