US4422511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic reset for tillage and seeding equipment
Assignee: Individual
•
Filing: 1982-06-23
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Granted: 1983-12-27
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Expires: 2002-06-23
Abstract
Abstract An hydraulic ram is situated between the tillage tool and the frame and is normally fully extended and acts as a rigid link. The ram has a predetermined and adjustable pressure so that if an obstruction is encountered by the tool, it only retracts when the preset pressure is exceeded and then returns to the fully extended position as soon as the obstruction is passed. It can be used on machines such as discers, hoe drills, press drills or any ground working implement which includes tillage tools which are pivoted to the frame and which do not engage the ground by raising and lowering the frame. An adjustable pressure reducing valve is situated in the hydraulic line extending to the ram and senses the pressure downstream of the valve rather than the pressure upstream as is usual.
Inventors
- 👤 Erhard Poggemiller
- 👤 Ralph Sweet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:57
CPC Classifications
A; A01; A01B; A01B61/00; A01B61/04; A01B61/044; A01B61/046; A01C; A01C7/00; A01C7/20; A01C7/201; A01C7/205
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
213 words
In an agricultural implement which includes a frame, and a ground engaging tool assembly pivotally supported upon said frame, an hydraulic system including a variable displacement pump, a high pressure line extending from said pump, a main hydraulic ram operatively connected to said high pressure line and to said ground engaging tool assembly for controlling and presetting the depth of penetration of said ground engaging tool assembly; the improvement comprising in combination a resetting ram assembly for said ground engaging tool assembly, operatively extending between said ground engaging tool assembly and said frames, means operatively connecting said resetting ram assembly to the hydraulic system and means to adjust the hydraulic pressure within said resetting ram assembly below pump pressure whereby said resetting ram assembly is normally fully at one end of the stroke thereof until a predetermined pressure upon said ground engaging tool assembly is exceeded, said last mentioned means comprising a pressure reducing valve assembly operatively connected between said high pressure line and said resetting ram assembly to conrol and sense the pressure downstream of said valve assembly, said ground engaging tool assembly including at least one coulter assembly mounted for pivotal action to said frame, said resetting ram assembly being operatively connected between said main hydraulic ram and said coulter assembly.
Claim 2
Dependent Claim
213 words
In an agricultural implement which includes a frame, and a ground engaging tool assembly pivotally supported upon said frame, an hydraulic system including a variable displacement pump, a high pressure line extending from said pump, a main hydraulic ram operatively connected to said high pressure line and to said ground engaging tool assembly for controlling and presetting the depth of penetration of said ground engaging tool assembly; the improvement comprising in combination a resetting ram assembly for said ground engaging tool assembly, operatively extending between said ground engaging tool assembly and said frames, means operatively connecting said resetting ram assembly to the hydraulic system and means to adjust the hydraulic pressure within said resetting ram assembly below pump pressure whereby said resetting ram assembly is normally fully at one end of the stroke thereof until a predetermined pressure upon said ground engaging tool assembly is exceeded, said last mentioned means comprising a pressure reducing valve assembly operatively connected between said high pressure line and said resetting ram assembly to conrol and sense the pressure downstream of said valve assembly, said ground engaging tool assembly including at least one coulter assembly mounted for pivotal action to said frame, said resetting ram assembly being operatively connected between said main hydraulic ram and said coulter assembly.
Claim 3
Dependent Claim
51 words
The improvement according to claim 1 in which said ground engaging tool assembly includes a member pivoted by one end thereof to said frame, said coulter assembly being operatively mounted upon the other end of said member, said resetting ram assembly being operatively connected to said member intermediate the ends thereof.
Claim 4
Dependent Claim
56 words
The improvememt according to claim 1 which includes a crank arm pivotally mounted intermediate the ends thereof to said frame, said main hydraulic ram being operatively connected between one end of said crank arm and said frame, said resetting ram assembly being operatively connected between the other end of said crank arm and said coulter assembly.
Claim 5
Dependent Claim
55 words
The improvement according to claim 2 which includes a crank arm pivotally mounted intermediate the ends thereof to said frame, and said hydraulic ram being operatively connected between one end of said crank arm and said frame, said resetting ram assembly being operatively connected between the other end of said crank arm and said member.
Claim 6
Dependent Claim
55 words
The improvement according to claim 1 in which said coulter assembly includes a cutting knife mounted to said coulter assembly and immediately behind same and depending downwardly from the rear end thereof, to cut through straw, weeds and the like, and seed and fertilizer depositing spouts supported by said coulter assembly behind said cutting knife.
Claim 7
Dependent Claim
60 words
The improvement according to claim 2 in which said coulter assembly includes a coulter wheel journalled for rotation at said other end of said member, a cutting knife mounted to said member immediately behind said coulter wheel to cut through straw, weeds and the like, and seed and fertilizer depositing spouts supported by said coulter assembly behind said cutting knife.
Claim 8
Dependent Claim
55 words
The improvement according to claim 3 in which said coulter assembly includes a cutting knife mounted to said coulter assembly and immediately behind same and depending downwardly from the rear end thereof, to cut through straw, weeds and the like, and seed and fertilizer depositing spouts supported by said coulter assembly behind said cutting knife.
Claim 9
Dependent Claim
60 words
The improvement according to claim 4 in which said coulter assembly includes a coulter wheel journalled for rotation at said other end of said member, a cutting knife mounted to said member immediately behind said coulter wheel to cut through straw, weeds and the like, and seed and fertilizer depositing spouts supported by said coulter assembly behind said cutting knife.
Claim 10
Dependent Claim
145 words
The improvement according to claim 1 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and said cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 11
Dependent Claim
144 words
The improvement according to claim 2 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 12
Dependent Claim
144 words
The improvement according to claim 3 which includes at leat one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 13
Dependent Claim
144 words
The improvement according to claim 4 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depeonding from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 14
Dependent Claim
144 words
The improvement according tl claim 5 which includes at least one front castor wheel asembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 15
Dependent Claim
144 words
The improvement according to claim 6 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 16
Dependent Claim
144 words
The improvement according to claim 7 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 17
Dependent Claim
144 words
The improvement according to claim 8 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and sai frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, a packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
Claim 18
Dependent Claim
99 words
The improvement according to claims 1, 2 or 3 which includes at least one transport wheel assembly mounted adjacent the rear side of said frame, said transport wheel assembly including a transport wheel arm pivoted by one end thereof to said frame, a wheel mounted upon the other end of said transport wheel arm and being journalled for rotation therein, and a hydraulic piston and cylinder assembly operatively extending between said frame and said transport wheel arm for raising and lowering same, and a further resetting ram assembly for said last mentioned piston and cylinder assembly operatively connected thereto.
Claim 19
Dependent Claim
99 words
The improvement according to claims 4, 5 or 6 which includes at least one transport wheel assembly mounted adjacent the rear side of said frame, said transport wheel assembly including a transport wheel arm pivoted by one end thereof to said frame, a wheel mounted upon the other end of said transport wheel arm and being journalled for rotation therein, and a hydraulic piston and cylinder assembly operatively extending between said frame and said transport wheel arm for raising and lowering same, and a further resetting ram assembly for said last mentioned piston and cylinder assembly operatively connected thereto.
Claim 20
Dependent Claim
99 words
The improvement according to claims 7, 8 or 9 which includes at least one transport wheel assembly mounted adjacent the rear side of said frame, said transport wheel assembly including a transport wheel arm pivoted by one end thereof to said frame, a wheel mounted upon the other end of said transport wheel arm and being journalled for rotation therein, and a hydraulic piston and cylinder assembly operatively extending between said frame and said transport wheel arm for raising and lowering same, and a further resetting ram assembly for said last mentioned piston and cylinder assembly operatively connected thereto.
Claim 21
Dependent Claim
99 words
The improvement according to claims 10, 11 or 12 which includes at least one transport wheel assembly mounted adjacent the rear side of said frame, said transport wheel assembly including a transport wheel arm pivoted by one end thereof to said frame, a wheel mounted upon the other end of said transport wheel arm and being journalled for rotation therein, and a hydraulic piston and cylinder assembly operatively extending between said frame and said transport wheel arm for raising and lowering same, and a further resetting ram assembly for said last mentioned piston and cylinder assembly operatively connected thereto.
Claim 22
Dependent Claim
99 words
The improvement according to claims 13, 14 or 15 which includes at least one transport wheel assembly mounted adjacent the rear side of said frame, said transport wheel assembly including a transport wheel arm pivoted by one end thereof to said frame, a wheel mounted upon the other end of said transport wheel arm and being journalled for rotation therein, and a hydraulic piston and cylinder assembly operatively extending between said frame and said transport wheel arm for raising and lowering same, and a further resetting ram assembly for said last mentioned piston and cylinder assembly operatively connected thereto.
Claim 23
Dependent Claim
96 words
The improvement according to claim 16 which includes at least one transport wheel assembly mounted adjacent the rear side of said frame, said transport wheel assembly including a transport wheel arm pivoted by one end thereof to said frame, a wheel mounted upon the other end of said transport wheel arm and being journalled for rotation therein, and a hydraulic piston and cylinder assembly operatively extending between said frame and said transport wheel arm for raising and lowering same, and a further resetting ram assembly for said last mentioned piston and cylinder assembly operatively connected thereto.
Claim 24
Dependent Claim
208 words
A ground working agricultural implement comprising in combination a frame, a ground engaging tool assembly pivotally supported upon said frame, an hydraulic system including a variable displacement pump, a high pressure line extending from said pump, a main hydraulic ram operatively connected to said high pressure line and to said ground engaging tool assembly for controlling and presetting the depth of penetration of said ground engaging tool assembly; the improvement comprising in combination a resetting ram assembly for said ground engaging tool assembly, operatively extending between said gound engaging tool assembly and said frame, means operatively connecting said resetting ram assembly to the hydraulic system and means to adjust the hydraulic pressure within said resetting ram assembly below pump pressure whereby said resetting ram assembly is normally fully extended until a predetermined pressure upon said ground engaging tool assembly is exceeded, said last mentioned means comprising a pressure reducing valve assembly operatively connected between said high pressure line and said resetting ram assembly to control and sense the pressure downstream of said valve assembly, said ground engaging tool assembly including at least one coulter assembly mounted for pivotal action to said frame, said resetting ram assembly being operatively connected between said main hydraulic ram and said coulter assembly.
Claim 25
Dependent Claim
208 words
A ground working agricultural implement comprising in combination a frame, a ground engaging tool assembly pivotally supported upon said frame, an hydraulic system including a variable displacement pump, a high pressure line extending from said pump, a main hydraulic ram operatively connected to said high pressure line and to said ground engaging tool assembly for controlling and presetting the depth of penetration of said ground engaging tool assembly; the improvement comprising in combination a resetting ram assembly for said ground engaging tool assembly, operatively extending between said gound engaging tool assembly and said frame, means operatively connecting said resetting ram assembly to the hydraulic system and means to adjust the hydraulic pressure within said resetting ram assembly below pump pressure whereby said resetting ram assembly is normally fully extended until a predetermined pressure upon said ground engaging tool assembly is exceeded, said last mentioned means comprising a pressure reducing valve assembly operatively connected between said high pressure line and said resetting ram assembly to control and sense the pressure downstream of said valve assembly, said ground engaging tool assembly including at least one coulter assembly mounted for pivotal action to said frame, said resetting ram assembly being operatively connected between said main hydraulic ram and said coulter assembly.
Claim 26
Dependent Claim
53 words
The ground working implement according to claim 23 in which said ground engaging tool assembly includes a member pivoted by one end thereof to said frame, said coulter assembly being operatively mounted upon the other end of said member, said resetting ram assembly being operatively connected to said member intermediate the ends thereof.
Claim 27
Dependent Claim
58 words
The ground working implement according to claim 23 which includes a crank arm pivotally mounted intermediate the ends thereof to said frame, said main hydraulic ram being operatively connected between one end of said crank arm and said frame, said resetting ram assembly being operatively connected between the other end of said crank arm and said coulter assembly.
Claim 28
Dependent Claim
58 words
The ground working implement according to claim 24 which includes a crank arm pivotally mounted intermediate the ends thereof to said frame, said main hydraulic ram being operatively connected between one end of said crank arm and said frame, said resetting ram assembly being opertively connected between the other end of said crank arm and said coulter assembly.
Claim 29
Dependent Claim
57 words
The ground working implement according to claim 23 in which said coulter assembly includes a cutting knife mounted to said coulter assembly and immediately behind same and depending downwardly from the rear end thereof, to cut through straw, weeds and the like, and seed and fertilizer depositing spouts supported by said coulter assembly behind said cutting knife.
Claim 30
Dependent Claim
145 words
The ground working implement according to claim 23 which includes at least one front castor wheel assembly supporting said frame forwardly of said coulter assembly and a packer wheel assembly depending from said frame behind said coulter assembly and in longitudinal alignment therewith, and supporting said frame rearwardly of said coulter assembly, hydraulic piston and cylinder means operatively extending between said castor wheel and said frame, further hydraulic piston and cylinder means operatively extending between said packer wheel assembly and said frame, and a further resetting ram assembly for said last mentioned hydraulic piston and cylinder assemblies operatively connected thereto, said packer wheel assembly including an arm pivoted by one end thereof to said frame, packer wheel operatively mounted on the other end of said arm, said hydraulic piston and cylinder assembly for said packer wheel assembly operatively extending between said frame and said arm.
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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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |