Patents by Inventor Maarten Koorn
Maarten Koorn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140182258Abstract: Mowing device for plants, comprising at least one rotor with a rotor axis, in particular a vertical rotor axis or first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder, which is attached to the rotor so as to be rotatable about a second rotation axis which is situated at a radial distance from the rotor axis.Type: ApplicationFiled: March 5, 2014Publication date: July 3, 2014Applicant: LELY PATENT N.V.Inventor: Maarten KOORN
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Patent number: 8707665Abstract: A mowing device for plants includes at least one rotor with a first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder during normal operation. By a blade pivot pin or shaft that is situated at a radial distance from the first rotation axis. This allows the blade to be freely rotatable through at least a predetermined angle. The blade pin can be displaced radially inwards. The blade holder is connected to the rotor about a latent dedicated second rotation axis; and the first and second rotation axes and the blade pivot pin determine a triangle in a plane of projection at right angles to the first rotation axis.Type: GrantFiled: May 25, 2012Date of Patent: April 29, 2014Assignee: Lely Patent N.V.Inventor: Maarten Koorn
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Patent number: 8327612Abstract: Device for mowing crops, comprising a series of mowing units arranged side by side at predetermined distances, each mowing unit comprising a knife holder with at least one knife carrying portion for carrying a mowing knife, and a drive mechanism for each knife holder. The drive mechanism for each knife holder comprises a first drive element comprising a hub portion for carrying the respective knife holder, and a second drive element drivingly engaged with the first drive element to rotatingly drive the knife holder about a vertical axis. In normal operation, the knife holder and the hub portion form a unitary rotatable assembly which, at a position between the knife carrying portion and the hub portion, is provided with a break connection which is effective in a radial direction.Type: GrantFiled: May 12, 2010Date of Patent: December 11, 2012Assignee: Lely Patent N.V.Inventors: Willem Arie Van Der Ent, Maarten Koorn, Jelle Fredo Oudemans, Shane A. Bollinger
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Publication number: 20120240545Abstract: Mowing device for plants, comprising at least one rotor with a rotor axis, in particular a vertical rotor axis or first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder, which is attached to the rotor so as to be rotatable about a second rotation axis which is situated at a radial distance from the rotor axis.Type: ApplicationFiled: May 25, 2012Publication date: September 27, 2012Applicant: LELY PATENT N.V.Inventor: Maarten KOORN
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Patent number: 8205423Abstract: Mowing device for plants, comprising at least one rotor with a rotor axis, in particular a vertical rotor axis or first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder, which is attached to the rotor so as to be rotatable about a second rotation axis which is situated at a radial distance from the rotor axis.Type: GrantFiled: February 13, 2009Date of Patent: June 26, 2012Assignee: Lely Patent N.V.Inventor: Maarten Koorn
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Publication number: 20110011049Abstract: Device for mowing crops, comprising a series of mowing units arranged side by side at predetermined distances, each mowing unit comprising a knife holder with at least one knife carrying portion for carrying a mowing knife, and a drive mechanism for each knife holder. The drive mechanism for each knife holder comprises a first drive element comprising a hub portion for carrying the respective knife holder, and a second drive element drivingly engaged with the first drive element to rotatingly drive the knife holder about a vertical axis. In normal operation, the knife holder and the hub portion form a unitary rotatable assembly which, at a position between the knife carrying portion and the hub portion, is provided with a break connection which is effective in a radial direction.Type: ApplicationFiled: May 12, 2010Publication date: January 20, 2011Applicant: Lely Patenet N.V.Inventors: Willem Arie VAN DER ENT, Maarten KOORN, Jelle Fredo OUDEMANS, Shane A. BOLLINGER
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Publication number: 20090205305Abstract: Mowing device for plants, comprising at least one rotor with a rotor axis, in particular a vertical rotor axis or first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder, which is attached to the rotor so as to be rotatable about a second rotation axis which is situated at a radial distance from the rotor axis.Type: ApplicationFiled: February 13, 2009Publication date: August 20, 2009Applicant: Lely Patent N.V.Inventor: Maarten Koorn
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Publication number: 20020059789Abstract: Mower-conditioner comprising a mower (1) suspended vertically displaceable on a main frame (10) and a conditioner (2) following the mower (1), adjustably linked to the main frame (10). In order to improve the functioning, particularly the ground adaptation of the mower-conditioner while lessening the construction effort, it is proposed according to the invention that the conditioner (2) be movably coupled via at least one coupling member (19) to the mower (1).Type: ApplicationFiled: August 24, 2001Publication date: May 23, 2002Applicant: Maasland, N.V., a Dutch Limited Liability CompanyInventor: Maarten Koorn
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Publication number: 20020026778Abstract: The invention relates to a mowing machine comprising a cutter bar (8), a crushing device (3) including a rotor (4) provided with crushing elements (5), and adjusting means by means of which the distance between the crushing elements (5) and the cutter bar (8) can be adjusted. The mowing machine (1) further comprises measuring means with the aid of which it is possible to determine the number of revolutions and/or the force by which the crushing device (3) is driven. The mowing machine (1) further comprises a control mechanism by means of which the adjusting means are activated on the basis of the signals supplied by the measuring means.Type: ApplicationFiled: March 27, 1998Publication date: March 7, 2002Inventor: MAARTEN KOORN
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Publication number: 20020014059Abstract: The invention relates to an implement for treating a soil surface, such as for example raking together grass and/or hay, said implement (1) being provided with a frame (2) comprising at least one, preferably motor-drivable, treating unit (3) provided with treating elements for treating the soil surface. The implement (1) is provided with measuring means (13) which are suitable for feeling and/or scanning the soil surface to be treated and for determining ground irregularities, such as slopes and/or holes for example, that may be present in the soil surface, as well as with adjusting means (11) that adjust automatically the orientation and/or height of at least one treating element relative to the soil surface, on the basis of the measuring results of the measuring means (13).Type: ApplicationFiled: July 25, 2001Publication date: February 7, 2002Applicant: LELY ENTERPRISES AG, a Swiss Limited Liability co.Inventors: Alexander van der Lely, Maarten Koorn, Cornelis Franciscus Johannes Geerts
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Publication number: 20020011056Abstract: The invention relates to an implement for treating a soil surface, such as for example raking together grass and/or hay, said implement (1) being provided with a frame (2) comprising at least one, preferably motor-drivable, treating unit (3) provided with treating elements (8) for treating the soil surface. The implement (1) is provided with measuring means (13) which are suitable for feeling and/or scanning the soil surface to be treated and for determining ground irregularities, such as slopes and/or holes for example, that may be present in the soil surface, as well as with adjusting means (11) that adjust automatically the orientation and/or height of the treating unit (3) relative to the soil surface, on the basis of the measuring results of the measuring means (13).Type: ApplicationFiled: July 25, 2001Publication date: January 31, 2002Applicant: LELY ENTERPRISES AG, a SWISS LIMITED LIABILITY CO.Inventors: Alexander van der Lely, Maarten Koorn, Cornelis Franciscus Johannes Geerts
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Patent number: 6250058Abstract: An implement for displacing crop lying on the ground comprising at least one rake member which is driven so as to be rotatable about an upwardly orientated axis and which is provided with a plurality of outwardly extending arms, each of which pivots in upward direction about a pivot axis. Each arm has a pair of outwardly extending tines connected pivotably thereto. The pivotal connections of the arms to the rake wheels and the tines to the arms of each assemble of arms and tines is such that the center of gravity, when the implement is operating, is so disposed that the resultant of the gravitational and centrifugal forces urge the arms and the tines towards the underlying ground. The rake wheels can be folded upwardly about their pivot axes into a transport position wherein the arms are received in a locking device which comprises a resilient member having a recess for receiving each arm. The resilient member may comprise a spring or be composed of an elastic material such as plastic or rubber.Type: GrantFiled: June 9, 1999Date of Patent: June 26, 2001Assignee: Maasland N.V. A Dutch Limited Liability Co.Inventors: Maarten Koorn, Norbert van Hemert
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Patent number: 6109012Abstract: A hay-making machine comprising motor-driven working members which rotate about upwardly orientated shafts. The working members are divided into three groups arranged in rows extending transversely to the direction of travel of the machine. A central group is at the rear of the machine and two outboard groups extend outwardly from a location forward of the central rear group in such a manner that the inner working member of each outboard group overlaps (as seen in the direction of travel) the outer working member of the central rear group. The machine includes a frame on which the three groups of working members are mounted. Each group includes four working members. The outer two working members of the outboard groups are foldable to a position over the two inner working members of each of these groups about horizontal axes. Then the outboard groups, as so folded, can be pivoted about vertical axes so that they are positioned along side the frame.Type: GrantFiled: February 6, 1997Date of Patent: August 29, 2000Assignee: Maasland, N.V.Inventors: Nanno Geert Staal, Maarten Koorn, Alfonsus Jacobus van den Engel
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Patent number: 5845469Abstract: A mowing machine comprising a mowing unit, a crushing member and an adjusting mechanism, by means of which one or more crushing parameters can be adjusted. At least one sensor is provided, by means of which the extent to which the crushing member is loaded during operation is recorded. This sensor also supplies one or more control signals to the above-mentioned adjusting mechanism to obtain automatic adjustment of the machine's crushing parameters. The adjusting mechanism can adjust the relative positions of the crushing member and the mowing unit, the rpm of the crushing member and the size of the crop channel, among other things.Type: GrantFiled: November 4, 1996Date of Patent: December 8, 1998Assignee: Maasland, N.V.Inventor: Maarten Koorn
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Patent number: 5088275Abstract: An implement for processing mown crop having a plurality of mower members and a crop processing member. The crop processing member has a hood and a carrier, to which are fitted tine-shaped elements by means of connecting members, that cooperate to process by crushing or crimping, the crop cut by the mowing members. The connecting members provide supporting walls on the side of the tine-shaped elements facing away from the side from which they are loaded during normal operation. The supporting wall encloses, at least at the upper portion of the connecting member, an angle with the tine-shaped element that permits the tine-shaped element, made at least partly of a synthetic resin material, to bend thereby absorbing the shock and lessening the potential for damage when solid objects are intermingled with the crop being processed.Type: GrantFiled: August 5, 1991Date of Patent: February 18, 1992Assignee: C. van der Lely N.V.Inventors: Maarten Koorn, Sape Sikkema
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Patent number: 5076042Abstract: A mowing machine comprises a mowing unit and a crushing unit, both suspended in a first frame, the first frame together with the mowing unit (8) and the crushing unit also being suspendedeither to the leading end of a second frame which is provided with ground engaging wheels and a drawbar for connection behind a tractor,or to the lifting hitch at the front side of the tractor. The same type mowing machine is also operable at the forward end of the tractor as well as to the tractor's rear at the left or right side.Type: GrantFiled: July 6, 1990Date of Patent: December 31, 1991Assignee: C. van der Lely N.V.Inventors: Maarten Koorn, Sape Sikkema
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Patent number: 4951450Abstract: A mowing machine comprising a cutter bar having rotary mowing members arranged thereabove. The cutter bar is connected for its support in two places to a carrier frame. One of these connections includes a flexible member, constituted by a resilient element, which permits relative limited movement between the carrier frame and the portion of the cutter bar that is contiguous to the connection. The resilient connection can be attached to a mowing member mounted on the cutter bar or outside the reach of the mowing members by means of an upwardly extending connection beam which is rigidly connected to the carrier frame at its upper end and is connected to the cutter bar at its lower end via a horizontal resilient element.Type: GrantFiled: April 20, 1989Date of Patent: August 28, 1990Assignee: C. van der Lely N.V.Inventors: Maarten Koorn, Sape Sikkema