US3774693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural implement
Assignee: Orthman Manufacturing Inc
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Filing: 1970-12-23
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Granted: 1973-11-27
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Expires: 1990-12-23
Abstract
Abstract A farm implement having a tool bar including a hollow main frame and oppositely extending wing sections pivotal between horizontal and vertical positions. A hydraulic cylinder is positioned inside the opposite ends of the hollow main frame and engages an ear on the adjacent wing section extending into the main frame when in a lowered position. Upstanding aligned apertured ears on the ends of the main frame and wing sections provide hinges therebetween. The ear on the wing sections extending into the opening in the end of the main frame is limited against lateral movement by being received in a notch in the base plate on which the hydraulic cylinder is carried for removably attaching the cylinder in the hollow main frame.
Inventors
- 👤 H Orthman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:50
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/02; A01B73/04; A01B73/044
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
179 words
An agricultural implement comprising, a frame having a tool bar carrying ground working tools thereon along its substantial length; said tool bar including a main frame and at least one wing section pivotally movable between raised and lowered positions, a hinge pivotally interconnecting said wing section and main frame, said main frame having an elongated opening in its end adjacent said wing section, a hydraulic cylinder positioned in said opening and pivotally connected to said wing section at a point remote from the pivotal axis of said hinge, said wing section including an ear connected to said cylinder which extends into said opening in said main frame when said wing section is in said lowered position, stop means being provided inside said opening on opposite sides of said ear for limiting pivotal movement of said wing section about an axis perpendicular to the pivotal axis of said hinge, said stop means having a notch formed in a base plate positioned in said opening, said ear being received in said notch when said wing section is in said lowered position.
Claim 2
Dependent Claim
179 words
An agricultural implement comprising, a frame having a tool bar carrying ground working tools thereon along its substantial length; said tool bar including a main frame and at least one wing section pivotally movable between raised and lowered positions, a hinge pivotally interconnecting said wing section and main frame, said main frame having an elongated opening in its end adjacent said wing section, a hydraulic cylinder positioned in said opening and pivotally connected to said wing section at a point remote from the pivotal axis of said hinge, said wing section including an ear connected to said cylinder which extends into said opening in said main frame when said wing section is in said lowered position, stop means being provided inside said opening on opposite sides of said ear for limiting pivotal movement of said wing section about an axis perpendicular to the pivotal axis of said hinge, said stop means having a notch formed in a base plate positioned in said opening, said ear being received in said notch when said wing section is in said lowered position.
Claim 3
Dependent Claim
27 words
The structure of claim 1 wherein said pivotal axis of said hinge is between and above the adjacent ends of said main frame and said wing section.
Claim 4
Dependent Claim
33 words
The structure of claim 1 wherein said base plate is detachably secured to a bottom ball of said main frame in said opening, and said hydraulic cylinder is secured to said base plate.
Claim 5
Dependent Claim
23 words
The structure of claim 1 wherein said cylinder is disposed entirely within said opening when said wing section is in said lowered position.
Claim 6
Dependent Claim
29 words
The structure of claim 4 wherein said hinge includes upstanding aligned apertured ears on said wing section and said main frame and a pin extends through said aligned apertures.
Claim 7
Dependent Claim
24 words
The structure of claim 1 wherein a wing section is provided at the opposite end of said main frame from said first wing section.
Claim 8
Dependent Claim
24 words
The structure of claim 1 wherein said wing section and main frame are hollow throughout their substantial length and rectangular in transverse cross section.
Claim 9
Dependent Claim
38 words
The structure of claim 6 wherein stop means are provided inside said opening on opposite sides of said ear for limiting pivotal movement of said wing section about an axis perpendicular to the pivotal axis of said hinge.
Claim 10
Dependent Claim
125 words
An agricultural implement comprising, a frame having a tool bar carrying ground working tools thereon along its substantial length; said tool bar including a main frame and at least one wing section pivotally movable between raised and lowered positions, a hinge pivotally interconnecting said wing section and main frame, said main frame having an elongated opening in its end adjacent said wing section, a hydraulic cylinder being secured to said main frame and positioned in said opening and pivotally connected to said wing section at a point remote from the pivotal axis of said hinge, said wing section includes an ear connected to said cylinder and said ear extends into said opening in said main frame when said wing section is in said lowered position.
Claim 11
Dependent Claim
125 words
An agricultural implement comprising, a frame having a tool bar carrying ground working tools thereon along its substantial length; said tool bar including a main frame and at least one wing section pivotally movable between raised and lowered positions, a hinge pivotally interconnecting said wing section and main frame, said main frame having an elongated opening in its end adjacent said wing section, a hydraulic cylinder being secured to said main frame and positioned in said opening and pivotally connected to said wing section at a point remote from the pivotal axis of said hinge, said wing section includes an ear connected to said cylinder and said ear extends into said opening in said main frame when said wing section is in said lowered position.
Claim 12
Dependent Claim
38 words
The structure of claim 9 wherein said hydraulic cylinder is detachably secured in said opening of said main frame by detachable fastening means operatively connecting said cylinder to said main frame and said fastening means is operatively exposed.
Claim 13
Dependent Claim
58 words
The structure of claim 10 wherein said detachable fastening means includes a removable base plate positioned within said opening in said main frame and secured to said main frame, and said hydraulic cylinder is secured to said main frame by being secured to said base plate whereby said hydraulic cylinder can be removed by removing said base plate.
Claim 14
Dependent Claim
36 words
The structure of claim 10 wherein said base plate is secured to the bottom wall of said main frame by detachable fastening means and said fastening means is exposed to the exterior of said elongated opening.
Claim 15
Dependent Claim
148 words
An agricultural implement comprising, a frame having a tool bar carrying ground working tools thereon along its substantial length; said tool bar including a main frame and at least one wing section pivotally movable between raised and lowered positions, a hinge pivotally interconnecting said wing section and main frame, said main frame having an elongated opeNing in its end adjacent said wing section, a hydraulic cylinder being secured to said main frame and positioned in said opening and pivotally connected to said wing section at a point remote from the pivotal axis of said hinge, cooperating stop means are provided on the adjacent ends of said wing section and main frame opposite said hinge to limit relative lateral movement therebetween when said wing section is in said lowered position, and when said wing section is in said raised position said cooperating stop means are disengaged from each other.
Claim 16
Dependent Claim
148 words
An agricultural implement comprising, a frame having a tool bar carrying ground working tools thereon along its substantial length; said tool bar including a main frame and at least one wing section pivotally movable between raised and lowered positions, a hinge pivotally interconnecting said wing section and main frame, said main frame having an elongated opeNing in its end adjacent said wing section, a hydraulic cylinder being secured to said main frame and positioned in said opening and pivotally connected to said wing section at a point remote from the pivotal axis of said hinge, cooperating stop means are provided on the adjacent ends of said wing section and main frame opposite said hinge to limit relative lateral movement therebetween when said wing section is in said lowered position, and when said wing section is in said raised position said cooperating stop means are disengaged from each other.
Claim 17
Dependent Claim
38 words
The structure of claim 13 wherein said hydraulic cylinder is detachably secured in said opening of said main frame by detachable fastening means operatively connecting said cylinder to said main frame and said fastening means is operatively exposed.
Claim 18
Dependent Claim
58 words
The structure of claim 14 wherein said detachable fastening means includes a removable base plate positioned within said opening in said main frame and secured to said main frame, and said hydraulic cylinder is secured to said main frame by being secured to said base plate whereby said hydraulic cylinder can be removed by removing said base plate.
Claim 19
Dependent Claim
36 words
The structure of claim 14 wherein said base plate is secured to the bottom wall of said main frame by detachable fastening means and said fastening means is exposed to the exterior of said elongated opening.
Claim 20
Dependent Claim
32 words
The structure of claim 14 wherein said hinge includes upstanding aligned apertured ears on the exterior of said wing section and said main frame and a pin extends through said aligned apertures.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |