Koorn
Maarten Koorn, Schiedam NL
Patent application number | Description | Published |
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20110011049 | MOWING DEVICE - 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. | 01-20-2011 |
20140182258 | MOWING DEVICE - 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. | 07-03-2014 |
Maarten Koorn, Maassluis NL
Patent application number | Description | Published |
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20090205305 | MOWING DEVICE - 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. | 08-20-2009 |
20120240545 | MOWING DEVICE - 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. | 09-27-2012 |
Martin Koorn, Cp Schiedam NL
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20090094812 | Method for changing knives in a mower - A mowing device including a disc, the disc providing a mount for at least one knife, said knife being pivotably mounted to said disc by a pivot pin, said pivot pin defining a mounting axis, such that the knife can rotate about said pivot pin between a first extended position and any retracted position, said disc being constructed of a basic material thickness and comprising a mounting surface; said mowing device including a knife adapter comprising a cylindrical aperture and a projection; said pivot pin comprising a first cylindrical section of a first diameter to fit into said cylindrical aperture in said knife adapter, and a second cylindrical section, of a second diameter, with a groove defined by a groove width and a pin section thickness at the groove of a dimension less than said second diameter; said mowing device including a retainer constructed of a material thickness equal to or less than the width of said groove, with a key-hole shaped aperture defined by a first circular section with a first inside diameter larger than said second diameter of said pin and a slot shaped section with a width that is greater than said pin section thickness but less than said second diameter of said pivot pin; wherein said slot-shaped section of the retainer engages said groove of said pivot pin to retain said pivot pin while said projection of said knife adapter engages said retainer. | 04-16-2009 |
20100205925 | MOWING DEVICE, A KNIFE ADAPTER FOR SUCH A MOWING DEVICE, A RETAINER FOR SUCH A MOWING DEVICE AND METHOD OF USING SAME - A mowing device including a disc, the disc providing a mount for at least one knife, said knife being pivotably mounted to said disc by a pivot pin, said pivot pin defining a mounting axis, such that the knife can rotate about said pivot pin between a first extended position and any retracted position, said disc being constructed of a basic material thickness and comprising a mounting surface; said mowing device including a knife adapter comprising a cylindrical aperture and a projection; said pivot pin comprising a first cylindrical section of a first diameter to fit into said cylindrical aperture in said knife adapter, and a second cylindrical section, of a second diameter, with a groove defined by a groove width and a pin section thickness at the groove of a dimension less than said second diameter; said mowing device including a retainer constructed of a material thickness equal to or less than the width of said groove, with a key-hole shaped aperture defined by a first circular is section with a first inside diameter larger than said second diameter of said pin and a slot shaped section with a width that is greater than said pin section thickness but less than said second diameter of said pivot pin; wherein said slot-shaped section of the retainer engages said groove of said pivot pin to retain said pivot pin while said projection of said knife adapter engages said retainer. | 08-19-2010 |
Michiel Koorn, Groningen NL
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20090069839 | Vascular filter with sleeve - A covered vascular filter can be placed in a blood vessel, for the purpose of intercepting thrombus. The filter may be introduced to a desired site for medical treatment through a catheter which defines a lumen or passage and a distal port or opening. The filter tends to resiliently expand from a compressed shape when it is inside the catheter lumen, to an expanded shape when the filter is pushed from the catheter lumen. A cover or sleeve over those portions of the filter that would otherwise contact the vessel wall tends to reduce pressure on the vessel wall. The sleeve also tends to resist growth of the vessel wall among the elements of the filter, called endothelialization. In other words, the sleeve resists incorporation of the filter elements into the vessel wall, enabling the filter to be retrievable for a longer time. The various features of the present invention may be used singly or in any combination, as desired in a particular vascular filter. | 03-12-2009 |
Robert Koorn, Redding, CT US
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20110061658 | OROPHARYNGEAL DEVICES FOR USE IN VENTILATING PATIENTS - An oropharyngeal device, for example, an endotracheal tube or a laryngeal mask airway, intended for insertion into a patient includes a tube portion defining a lumen which permits flow of a ventilating gas to the patient who may be under anesthesia for performance of surgery. The device includes a reinforcement member in a bite-resistant zone, which keeps the lumen open during patient biting to prevent occlusion of the lumen and/or interruption of the flow of ventilating gas. The reinforcement member can have a number of adjacent or closely-spaced wire turns or another suitable structure, and can cooperate with the tube portion to provide good bite-resistance. The tube portion optionally can be yieldable in the bite-resistant zone and provide cushioning during biting to inhibit dental or other damage. | 03-17-2011 |
20120310216 | INTEGRATED ORAL GASTRIC TUBE GUIDE - An integrated oral gastric tube guide for guiding an oral gastric tube proximal to a stomach of a patient, includes a guide channel for receiving the oral gastric tube, a service channel for housing a sensor for monitoring a physiological function of the patient, a bite block for preventing a patient from occluding the guide channel; and a guide length from a top face of the bite block to a distal end of the first guide channel that comprises a length from the mouth of a patient to proximal to a stomach. | 12-06-2012 |