US3965658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mowing machines
Assignee: Individual
•
Filing: 1974-05-14
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Granted: 1976-06-29
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Expires: 1994-05-14
Abstract
Abstract A mowing machine has a frame, including a coupling frame and a laterally extending support beam on which a rockable beam with mowing members are rotatably mounted. A further beam and a boom interconnect the support beam in operative position. By repositioning the further beam and pivoting the support beam to the rear, the machine can be placed in a transport position. Each mowing member is turnable about an upwardly extending axis and has an upper sheath or cover and a bottom to which dish support members are rotatably supported on holders that are spaced from the member's axis of rotation. The cover is formed of conical surfaces which have air holes and lower openings through which air passes during rotation. Cutting elements are pivoted at the outer circumference of the cover on a felly with radial spokes which are journalled on the mowing member's axis of rotation.
Inventors
- 👤 Cornelis van der Lely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/661; E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/082
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
113 words
A mowing machine comprising a mobile frame and mowing means supported on said frame, said mowing means including at least one mowing member that is rotatable about an upwardly extending axis, said mowing member having an outer circumference and cutting means adjacent said circumference, said machine having driving means connected to said mowing means to rotate said cutting means about said upwardly extending axis, at least one supporting member being rotatably mounted on said mowing member and said supporting member being rotatable about a separate axis of rotation that is spaced from said upwardly extending axis, said supporting member being freely rotatable about said separate axis of rotation independently of said driving means.
Claim 2
Dependent Claim
113 words
A mowing machine comprising a mobile frame and mowing means supported on said frame, said mowing means including at least one mowing member that is rotatable about an upwardly extending axis, said mowing member having an outer circumference and cutting means adjacent said circumference, said machine having driving means connected to said mowing means to rotate said cutting means about said upwardly extending axis, at least one supporting member being rotatably mounted on said mowing member and said supporting member being rotatable about a separate axis of rotation that is spaced from said upwardly extending axis, said supporting member being freely rotatable about said separate axis of rotation independently of said driving means.
Claim 3
Dependent Claim
15 words
A mowing machine as claimed in claim 1, wherein said supporting member is a dish.
Claim 4
Dependent Claim
25 words
A mowing machine as claimed in claim 2, wherein said mowing member comprises four dishes which are rotatably mounted on corresponding separate axes of rotation.
Claim 5
Dependent Claim
34 words
A mowing machine as claimed in claim 3, wherein each of said dishes is located the same distance around said upwardly extending axis and the circumferential angles between two adjacent dishes are the same.
Claim 6
Dependent Claim
27 words
A mowing machine as claimed in claim 3, wherein, viewed parallel to said upwardly extending axis, said dishes are located inside the circumference of said mowing member.
Claim 7
Dependent Claim
29 words
A mowing machine as claimed in claim 3, wherein said mowing member has a lower supporting body that is freely rotatable and said dishes are fastened to said body.
Claim 8
Dependent Claim
25 words
A mowing machine as claimed in claim 6, wherein said supporting body is freely rotatable around said upwardly extending axis independently of said cutting means.
Claim 9
Dependent Claim
18 words
A mowing machine as claimed in claim 7, wherein said supporting body comprises an outer felly on spokes.
Claim 10
Dependent Claim
21 words
A mowing machine as claimed in claim 8, wherein at least one of said dishes is located beneath the supporting body.
Claim 11
Dependent Claim
23 words
A mowing machine as claimed in claim 9, wherein said one dish, viewed on plan, is located within the perimeter of said felly.
Claim 12
Dependent Claim
29 words
A mowing machine as claimed in claim 10, wherein the lowermost portion of said one dish is located, at least during operation, within the circumference of said mowing member.
Claim 13
Dependent Claim
21 words
A mowing machine as claimed in claim 3, wherein at least one of said dishes is a completely enclosed revolvable body.
Claim 14
Dependent Claim
32 words
A mowing machine as claimed in claim 3, wherein the lower side of at least one of said dishes has at least one corrugation with a convex side thereof facing the ground.
Claim 15
Dependent Claim
20 words
A mowing machine as claimed in claim 3, wherein said mowing member has a protective hood that overlies said dishes.
Claim 16
Dependent Claim
55 words
A mowing machine as claimed in claim 3, wherein the center line of said separate axis of rotation of at least one of said dishes is the generatrix of an imaginary cone, the center line of which coincides with that of said mowing member, the apex of said cone being located beneath said mowing member.
Claim 17
Dependent Claim
34 words
A mowing machine as claimed in claim 3, wherein said dishes depend from the mowing member and the latter includes a felly supported by rectangle-section spokes, said spokes having opposite walls which converge outwardly.
Claim 18
Dependent Claim
30 words
A mowing machine as claimed in claim 3, wherein said mowing member includes a felly and prismatic spokes, said dishes being independently mounted for rotation on said felly and spokes.
Claim 19
Dependent Claim
24 words
A mowing machine as claimed in claim 17, wherein at least one of said dishes is directly fastened to one of said prismatic spokes.
Claim 20
Dependent Claim
53 words
A mowing machine as claimed in claim 1, wherein said mowing member comprises two plate-shaped conical surfaces located one above the other and the center lines of said conical surfaces coincides with that of said upwardly extending axis, the apices of said conical surfaces being located above the respective remainders of said surfaces.
Claim 21
Dependent Claim
20 words
A mowing machine as claimed in claim 19, wherein half the apex of the upper conical surface is about 65°.
Claim 22
Dependent Claim
20 words
A mowing machine as claimed in claim 19, wherein half the apex of the lower conical surface is about 75°.
Claim 23
Dependent Claim
25 words
A mowing machine as claimed in claim 19, wherein said two conical surfaces converge away from said upwardly extending axis in an outward radial direction.
Claim 24
Dependent Claim
30 words
A mowing machine as claimed in claim 19, wherein adjacent said circumference, said mowing member has an outlet for air and at least one opening adjacent said upwardly extending axis.
Claim 25
Dependent Claim
41 words
A mowing machine as claimed in claim 1, wherein there are a pair of mowing members rotatably mounted adjacent one another on said frame and said driving means is connected to said mowing members to rotate same in relative opposite directions.
Claim 26
Dependent Claim
21 words
A mowing machine as claimed in claim 24, wherein the diameter of each mowing member is about 1 to 1.2 ms.
Claim 27
Dependent Claim
36 words
A mowing machine as claimed in claim 24, wherein said mowing members are pivotable together with a part of said frame about a horizontal pivotal axis extending in the normal direction of travel of the machine.
Claim 28
Dependent Claim
23 words
A mowing machine as claimed in claim 26, wherein said horizontal pivotal axis is located laterally to one side of said mowing members.
Claim 29
Dependent Claim
36 words
A mowing machine as claimed in claim 26, wherein a pivotal shaft on said frame is located between said mowing members and the latter are mounted on said frame to pivot about said shaft during travel.
Claim 30
Dependent Claim
144 words
A mowing machine comprising a frame movable over the ground and said frame supporting mowing means, said mowing means comprising a plurality of mowing members rotatable about upwardly extending shaft means supported on said frame, each mowing member having a circumference and cutting means located adjacent said circumference, said frame including a supporting beam that extends transverse to the normal direction of travel during operation and said beam being connected to a coupling member for hitching said machine to a prime mover, a setting beam interconnecting said supporting beam with said coupling member during operation, said mowing members being pivotally supported from said supporting beam in side-by-side operative positions, said setting beam being disconnectable from an operative position and reconnectable to said supporting beam to retain the latter together with said mowing members in a transport position to the rear of said coupling member.
Claim 31
Dependent Claim
144 words
A mowing machine comprising a frame movable over the ground and said frame supporting mowing means, said mowing means comprising a plurality of mowing members rotatable about upwardly extending shaft means supported on said frame, each mowing member having a circumference and cutting means located adjacent said circumference, said frame including a supporting beam that extends transverse to the normal direction of travel during operation and said beam being connected to a coupling member for hitching said machine to a prime mover, a setting beam interconnecting said supporting beam with said coupling member during operation, said mowing members being pivotally supported from said supporting beam in side-by-side operative positions, said setting beam being disconnectable from an operative position and reconnectable to said supporting beam to retain the latter together with said mowing members in a transport position to the rear of said coupling member.
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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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |