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US4912915A Expired / Lapsed US ⏱️ 0.0 years remaining

Rotary cutter implements

Assignee: Sukup Manufacturing Co
•
Filing: 1989-06-26
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Granted: 1990-04-03
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Expires: 2009-06-26
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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 03:22
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.

References Cited (Backward Citations)

US2982080A Cited
US3068630A Cited
US3063226A Cited
US3115738A Cited
US3473302A Cited
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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

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