US4912915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutter implements
Assignee: Sukup Manufacturing Co
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Filing: 1989-06-26
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Granted: 1990-04-03
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Expires: 2009-06-26
Abstract
Abstract A rotary cutter or mower implement for cutting crop materials. The rotary cutter has a housing with support skids on each side of the housing. Presser wheels are positioned in front of the support skids. The support skids and presser wheels are vertically adjustable relative to the rotary cutter housing.
Inventors
- 👤 Edward H. Smit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:25
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D75/00; A01D75/30; A01D75/306
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
148 words
A rotary cutter implement for cutting crop materials as said implement traverses the ground, said implement including a housing and a support skid at each lateral side thereof, each of said skids being oriented parallel to the direction of normal travel of said implement, rotary cutter elements for cutting crop materials beneath said housing, each of said skids having a lower support surface disposed below the plane of the normal cutting action of said cutter elements, and a wheel disposed at the forward end of each of said skids and extending downward below the plane of the lower surface of the respective skid for supporting said section, each of said wheels being positioned relative to the respective skid such that the normal track of said wheel overlaps or is closely adjacent the forward profile of said respective skid whereby said wheel limits trash build-up ahead of said skid.
Claim 2
Dependent Claim
148 words
A rotary cutter implement for cutting crop materials as said implement traverses the ground, said implement including a housing and a support skid at each lateral side thereof, each of said skids being oriented parallel to the direction of normal travel of said implement, rotary cutter elements for cutting crop materials beneath said housing, each of said skids having a lower support surface disposed below the plane of the normal cutting action of said cutter elements, and a wheel disposed at the forward end of each of said skids and extending downward below the plane of the lower surface of the respective skid for supporting said section, each of said wheels being positioned relative to the respective skid such that the normal track of said wheel overlaps or is closely adjacent the forward profile of said respective skid whereby said wheel limits trash build-up ahead of said skid.
Claim 3
Dependent Claim
37 words
The invention as in claim 1 wherein said housing includes a means for vertically adjusting said wheels relative to said housing for the adjustment of the normal height of cutting by said cutter implement above the ground.
Claim 4
Dependent Claim
30 words
The invention as in claim 1 wherein said housing includes a side wall at each of said lateral sides, each of said skids being mounted on the respective side wall.
Claim 5
Dependent Claim
21 words
The invention as in claim 3 wherein each of said side walls includes a means for adjustably attaching said respective skid.
Claim 6
Dependent Claim
161 words
A rotary cutter implement for cutting crop materials as said implement traverses the ground, said implement including a first section, at least one side section, each of said sections including rotary cutter elements for cutting crop materials beneath the respective section, means interconnecting each said side section to said first section for permitting vertical movement of each said side section relative to said first section, and support means mounted on each said side section in a position remote from said interconnecting means, said support means including a support skid element oriented in the direction of normal travel of said implement and a presser wheel disposed at the forward end of said skid element for supporting the respective side section, each of said wheels being positioned relative to the respective skid such that the normal track of said wheel overlaps or is closely adjacent the forward profile of said respective skid whereby said wheel limits trash build-up ahead of said skid element.
Claim 7
Dependent Claim
161 words
A rotary cutter implement for cutting crop materials as said implement traverses the ground, said implement including a first section, at least one side section, each of said sections including rotary cutter elements for cutting crop materials beneath the respective section, means interconnecting each said side section to said first section for permitting vertical movement of each said side section relative to said first section, and support means mounted on each said side section in a position remote from said interconnecting means, said support means including a support skid element oriented in the direction of normal travel of said implement and a presser wheel disposed at the forward end of said skid element for supporting the respective side section, each of said wheels being positioned relative to the respective skid such that the normal track of said wheel overlaps or is closely adjacent the forward profile of said respective skid whereby said wheel limits trash build-up ahead of said skid element.
Claim 8
Dependent Claim
40 words
The invention as defined in claim 5 wherein each of said sections includes a means for vertically adjusting said wheels relative to said sections for the adjustment of the normal height of cutting by said cutter implement above the ground.
Claim 9
Dependent Claim
20 words
The invention as defined in claim 5 wherein said wheels are forward of and in alignment with said skid elements.
Claim 10
Dependent Claim
28 words
The invention as defined in claim 5 wherein each said side section includes a side wall, each of said skid elements being mounted on the respective side wall.
Claim 11
Dependent Claim
22 words
The invention as defined in claim 8 wherein each of said side walls includes a means for adjustably attaching said respective skid.
Claim 12
Dependent Claim
21 words
The invention as in claim 1 wherein the normal track of said wheel overlaps the forward profile of said respective skid.
Claim 13
Dependent Claim
23 words
The invention as in claim 1 wherein the normal track of said wheel is closely adjacent the forward profile of said respective skid.
Claim 14
Dependent Claim
21 words
The invention as in claim 5 wherein the normal track of said wheel overlaps the forward profile of said respective skid.
Claim 15
Dependent Claim
23 words
The invention as in claim 5 wherein the normal track of said wheel is closely adjacent the forward profile of said respective skid.
Claim 16
Dependent Claim
20 words
The invention as defined in claim 1 wherein said wheels are formed of and in alignment with said skid elements.
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |