Patents by Inventor Alfonsus Jacobus Van Den Engel
Alfonsus Jacobus Van Den Engel 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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Patent number: 9877422Abstract: A drawn agricultural machine comprising a carrier frame for carrying processing members, the carrier frame supportable on the ground, at least during transport, by means of a wheel set comprising at least a wheel, a coupling frame for coupling the agricultural machine 1 to the three-point suspension of a tractor, the coupling frame comprising two lower coupling points and an upper coupling point and the coupling frame being rotatable about a vertical axis of rotation relative to the carrier frame. The machine also comprises a drawing element for exerting a force on the coupling frame, wherein the coupling frame, the carrier frame and the drawing element are interconnected in such a manner that a downward force component is exerted on the lower coupling points when the drawing element exerts a force on the coupling frame.Type: GrantFiled: December 17, 2013Date of Patent: January 30, 2018Assignee: LELY PATENT N.V.Inventors: Alfonsus Jacobus Van Den Engel, Norbert Van Hemert
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Publication number: 20140102069Abstract: A drawn agricultural machine comprising a carrier frame for carrying processing members, the carrier frame supportable on the ground, at least during transport, by means of a wheel set comprising at least a wheel, a coupling frame for coupling the agricultural machine 1 to the three-point suspension of a tractor, the coupling frame comprising two lower coupling points and an upper coupling point and the coupling frame being rotatable about a vertical axis of rotation relative to the carrier frame. The machine also comprises a drawing element for exerting a force on the coupling frame, wherein the coupling frame, the carrier frame and the drawing element are interconnected in such a manner that a downward force component is exerted on the lower coupling points when the drawing element exerts a force on the coupling frame.Type: ApplicationFiled: December 17, 2013Publication date: April 17, 2014Inventors: Alfonsus Jacobus VAN DEN ENGEL, Norbert VAN HEMERT
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Patent number: 8646798Abstract: A drawn agricultural machine comprising a carrier frame for carrying processing members, the carrier frame supportable on the ground, at least during transport, by means of a wheel set comprising at least a wheel, a coupling frame for coupling the agricultural machine 1 to the three-point suspension of a tractor, the coupling frame comprising two lower coupling points and an upper coupling point and the coupling frame being rotatable about a vertical axis of rotation relative to the carrier frame. The machine also comprises a drawing element for exerting a force on the coupling frame, wherein the coupling frame, the carrier frame and the drawing element are interconnected in such a manner that a downward force component is exerted on the lower coupling points when the drawing element exerts a force on the coupling frame.Type: GrantFiled: September 25, 2008Date of Patent: February 11, 2014Assignee: Lely Patent N.V.Inventors: Alfonsus Jacobus Van Den Engel, Norbert Van Hemert
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Patent number: 8555994Abstract: An agricultural device is couplable to a tractor vehicle with carrier arms. The agricultural device comprises a carrier frame with a set of wheels and a coupling device for coupling the agricultural implement to a tractor vehicle. The agricultural device further comprises a coupling frame having at least one coupling point for coupling of the coupling frame to both carrier arms of the tractor vehicle. The coupling frame is connected to the carrier frame so as to be rigid in rotation in the vertical plane, wherein at least one coupling point of the coupling frame is positioned on or above the center line of the carrier frame. Owing to the fact that the carrier arms extend horizontally or upwards, the carrier arms will not or will hardly get out of position as a result of the travelling of the vehicle.Type: GrantFiled: June 22, 2011Date of Patent: October 15, 2013Assignee: Lely Patent N.V.Inventor: Alfonsus Jacobus Van Den Engel
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Patent number: 8062136Abstract: An agricultural machine, comprises a frame, two or more processing members, which are movably attached to the frame, and a drive device which is configured to drive the processing members. The drive device comprises a main drive shaft, two drive sections connected to the main drive shaft, which drive sections are each configured to drive one or more of the two or more processing members, wherein each drive section comprises a drive shaft. The drive device further comprises a protective device which enables a certain angular rotation between the two drive shafts in the case of an overload of one of the two drive shafts, and a coupling brake device which is configured to effect, at the angular rotation between the two drive shafts, a coupling between the other drive shaft and a part of the agricultural machine that is not co-rotatable with the two drive shafts.Type: GrantFiled: September 24, 2009Date of Patent: November 22, 2011Assignee: Lely Patent N.V.Inventor: Alfonsus Jacobus Van Den Engel
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Publication number: 20110247844Abstract: The invention relates to an agricultural device which is couplable to a tractor vehicle with carrier arms. The agricultural device comprises a carrier frame with a set of wheels and a coupling device for coupling the agricultural implement to a tractor vehicle. The agricultural device further comprises a coupling frame having at least one coupling point for coupling of the coupling frame to both carrier arms of the tractor vehicle. The coupling frame is connected to the carrier frame so as to be rigid in rotation in the vertical plane, wherein at least one coupling point of the coupling frame is positioned on or above the centre line of the carrier frame. Owing to the fact that the carrier arms extend horizontally or upwards, the carrier arms will not or will hardly get out of position as a result of the travelling of the vehicle.Type: ApplicationFiled: June 22, 2011Publication date: October 13, 2011Applicant: LELY PATENT N.V.Inventor: Alfonsus Jacobus VAN DEN ENGEL
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Patent number: 7926247Abstract: An agricultural machine for crop processing, the agricultural machine being provided with a drawbar that is connectable to a pulling vehicle, at least one crop processing member that is pivotably fastened to the drawbar, and a hydraulic lift cylinder for pivoting the crop processing member upwards relative to the drawbar, one side of the lift cylinder being fastened to the crop processing member and its other side to the drawbar, the lift cylinder comprising a first cylinder housing connected to the crop processing member, a second cylinder housing connected to the drawbar and a common piston rod connecting the two cylinder housings and being slidably included therein, the active internal surface of the first cylinder housing being larger than the active internal surface of the second cylinder housing.Type: GrantFiled: May 21, 2007Date of Patent: April 19, 2011Assignee: Maasland N.V.Inventor: Alfonsus Jacobus Van Den Engel
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Publication number: 20100230930Abstract: A drawn agricultural machine comprising a carrier frame for carrying processing members, the carrier frame supportable on the ground, at least during transport, by means of a wheel set comprising at least a wheel, a coupling frame for coupling the agricultural machine 1 to the three-point suspension of a tractor, the coupling frame comprising two lower coupling points and an upper coupling point and the coupling frame being rotatable about a vertical axis of rotation relative to the carrier frame. The machine also comprises a drawing element for exerting a force on the coupling frame, wherein the coupling frame, the carrier frame and the drawing element are interconnected in such a manner that a downward force component is exerted on the lower coupling points when the drawing element exerts a force on the coupling frame.Type: ApplicationFiled: September 25, 2008Publication date: September 16, 2010Applicant: LELY PATENT N.V.Inventors: Alfonsus Jacobus Van Den Engel, Norbert Van Hemert
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Publication number: 20100175358Abstract: A haymaking implement for displacing crop lying on the ground has a rotor and at least one tine arm, wherein the tine arm is pivotable with respect to the rotor about an associated pivot axis, for movement between a gripping position for gripping and taking along crop lying on the ground and a release position for releasing the crop. The tine arm has an outer arm portion carrying a plurality of tines, wherein each tine comprises a tine point for contact with the crop. In the gripping position, an innermost tine point positioned relatively closest to the rotor axis is located on or in front of the pivot axis with respect to the direction of rotation (R), while an outermost tine point positioned relatively distant from the rotor axis is located behind the pivot axis.Type: ApplicationFiled: March 26, 2010Publication date: July 15, 2010Applicant: LELY PATENT N.V.Inventors: Alfonsus Jacobus VAN DEN ENGEL, Bart VAN DER LELIJ
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Publication number: 20100071331Abstract: An agricultural machine, comprises a frame, two or more processing members, which are movably attached to the frame, and a drive device which is configured to drive the processing members. The drive device comprises a main drive shaft, two drive sections connected to the main drive shaft, which drive sections are each configured to drive one or more of the two or more processing members, wherein each drive section comprises a drive shaft.Type: ApplicationFiled: September 24, 2009Publication date: March 25, 2010Applicant: LELY PATENT N.V.Inventor: Alfonsus Jacobus VAN DEN ENGEL
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Patent number: 7398983Abstract: A haymaking machine comprising a frame and a rotatable processing member for crop processing. The processing member is connected with the frame and supported from the ground via a supporting device, which comprises at least one balance arm that is mounted on a substantially horizontal pivot axis and is provided with a wheel at each of its ends. During the crop processing, the wheels bear on the ground, the supporting device further being provided with an element for moving, for transport of the haymaking machine, the balance arm about its pivot axis to an oblique position in which the wheel at one of the ends of the balance arm is located at some distance from the ground. The balance arm comprises two balance arm portions that are movable relative to each other, each balance arm portion having a first end and a second end, the balance arm portions supporting the respective wheel at their first end and being interconnected at their second end.Type: GrantFiled: June 27, 2006Date of Patent: July 15, 2008Assignee: Lely Enterprises AGInventor: Alfonsus Jacobus Van Den Engel
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Publication number: 20070266688Abstract: An agricultural machine for crop processing, the agricultural machine being provided with a drawbar that is connectable to a pulling vehicle, at least one crop processing member that is pivotably fastened to the drawbar, and a hydraulic lift cylinder for pivoting the crop processing member upwards relative to the drawbar, one side of the lift cylinder being fastened to the crop processing member and its other side to the drawbar, the lift cylinder comprising a first cylinder housing connected to the crop processing member, a second cylinder housing connected to the drawbar and a common piston rod connecting the two cylinder housings and being slidably included therein, the active internal surface of the first cylinder housing being larger than the active internal surface of the second cylinder housing.Type: ApplicationFiled: May 21, 2007Publication date: November 22, 2007Inventor: Alfonsus Jacobus Van Den Engel
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Publication number: 20020157371Abstract: A tine element which is installed on a rake wheel of an agricultural implement which displaces harvested products such as hay and cut grass, the tine element comprising a first and second tine with the outboard end of each tine being disposed so that it points normal to the direction of travel of the tine element around the axis of the rake wheel. Each of the tines has on its inboard end a coiled part and such coiled parts are joined by a common central part. In operation, one of the tines is disposed above the other tine with the lower tine being longer than the upper tine. The coiled parts comprise coil torsion springs and each part has different elasticity characteristics so that the resilient deflection of the lower tine is greater than the relative deflection of the upper tine and the flexibility of the each tine is optimized to obtain better adaptation to the ground and to provide a longer life span for the tine element.Type: ApplicationFiled: March 23, 2001Publication date: October 31, 2002Applicant: MAASLAND N.V. A DUTCHLIMITED LIABILITY CO.Inventor: Alfonsus Jacobus Van Den Engel
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Publication number: 20020000083Abstract: An implement for displacing crop lying on the ground comprising a rake having two rotatable motor-driven side-by-side rake wheels which form crop lying on the ground into a swath which is formed between them. Immediately behind the rake is a motor-drivable tedder comprising two rotatable tedder members which immediately spread the crop which was just formed into a swath over the ground. The raking members and the tedder members are supported on a frame which includes mechanisms to raise the raking members and the tedder members from a working position to a transport position and vice versa. The frame is supported by a pair of ground engaging wheels which are disposed between the rake and the tedder members on opposite sides of the just formed swath. The tedder members are equipped with hook-shaped tines and are provided with an rpm-variator to govern the rpm of the tedder members. The working width of the rake is in a range of about three to four times wider than the working width of the tedder.Type: ApplicationFiled: June 27, 2001Publication date: January 3, 2002Applicant: LELY RESEARCH HOLDING A.G., a Swiss Limited Liability CompanyInventor: Alfonsus Jacobus Van den Engel
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Patent number: 6164051Abstract: A racking, pickup and windrowing implement for moving crop lying on the ground laterally which includes a first machine comprising rake wheels that rotate about substantially vertical axes and move the crop inwardly where it is picked up by a pick-up implement and conveyed to a displacing device which displaces the crop laterally and discharges it back on the ground in a windrow which is proximate the boundary of the strip being worked or, in one embodiment, the windrow is formed by discharging it laterally from the displacing device at a further distance away from the boundary of the strip being worked which is substantially equal to the width of the strip being worked. The displacing device comprises two endless members in series. Such endless members and the rake wheels are foldable upwardly so that the entire machine combination has a width suitable for transport.Type: GrantFiled: April 3, 1998Date of Patent: December 26, 2000Assignee: Maasland N.V.Inventors: Olaf van der Lely, Norbert van Hemert, Alfonsus Jacobus van den Engel
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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