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Jonkman
Alex Jonkman, Breda NL
| Patent application number | Description | Published |
|---|---|---|
| 20080317252 | Public Address System - The invention relates to a public address system, a control unit of the public address system and a monitoring device of a public address system. A bi-directional communication with modulated data between a control device and a monitoring device and/or an end of line monitoring device is monitoring the presence and status of the loudspeaker line and loudspeakers constantly. The communication is frequency multiplexed upon the existing audio wire from the audio amplifier to the loudspeakers. In combination with the bi-directional data communication the power supply for the monitoring devices and/or the end of line monitoring devices is extracted from audio frequencies, in fact preferably a 20 kHz pilot tone generated by the audio amplifier. Filtering prevents interference between audio signals and/or communication signals and/or the power supply. | 12-25-2008 |
Chris Jonkman, Broomfield, CO US
| Patent application number | Description | Published |
|---|---|---|
| 20110316535 | SHIM COILS AND SHIMMING MINIATURIZED NUCLEAR MAGNETIC RESONANCE MAGNETS - A capillary cartridge assembly for positioning a sample fluid at a geometric center between juxtaposed pole pieces of a NMR magnet assembly for NMR analysis comprises a capillary captured in a channel in a printed circuit board assembly that is sized to fit between the pole pieces. The assembly includes a RF coil surrounding a portion of the capillary. Electric traces shaped to function as shim coils can be included in the printed circuit board. An end of the printed circuit board includes electrically conductive contacts that plug into a receptacle to connect the RF coil and traces to external electrical circuitry when the RF coil is in the geometric center. The capillary can be a continuous flow-through capillary or a closed cartridge. | 12-29-2011 |
Jitsche Verhave Jonkman, Utrecht NL
| Patent application number | Description | Published |
|---|---|---|
| 20090282882 | PROCESS FOR THE CONVERSION OF LIQUID WASTE BIOMASS INTO A FERTILIZER PRODUCT - A process for the treatment of liquid waste biomass, especially liquid manure compositions, wherein the biomass is converted to a fertilizer product. The process at least includes a nitrification step including a first biological conversion stage wherein ammonium is converted to nitrite using nitritifying bacteria in an aerated reactor, and a subsequent chemical oxidation stage wherein nitrite is converted to nitrate by heating the liquid waste biomass in an aerated reactor under acidic conditions. The process is particularly suitable for treating liquid manure, because of the high ammonium nitrogen contents thereof, which render the process essentially self-regulatory. In addition a process for the treatment of liquid waste biomass wherein organic matters are converted to energy sources, referred to as biogas and green cokes, and wherein nitrogen is fixed in a fertilizer product in the form of ammonium nitrate, is provided, the process including the present nitrification process. | 11-19-2009 |
Kenneth R. Jonkman, Marne, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090062735 | INTRODUCER FOR CANNULA AND METHOD - An introducer for a blood vessel cannula has a main elongate portion adapted for insertion into a blood vessel cannula. A first end of a transition portion is adjacent to and extends from the main elongate portion. The first end of the transition portion has an outside diameter larger than an outside diameter of a second end of the transition portion. A first end of an extended portion is adjacent to and extends from the second end of the transition portion and the first end of the extended portion has an outside diameter that is larger than an outside diameter of a second end of the extended portion. A distal end portion is adjacent the second end of the extended portion and has an aperture. A lumen extends through the aperture, main elongate portion, the transition portion, the extended portion, and the distal end portion. | 03-05-2009 |
| 20090076482 | CANNULA REINFORCING BAND AND METHOD - A cannula assembly having a hollow elongate cannula with a proximal end, a distal end, and a central axis. A coiled reinforcing member is disposed along a portion of the hollow elongate cannula and is adapted to provide structural support to the elongate cannula. An intermediate reinforcing band is disposed on the elongate cannula between the proximal end and the distal end to reinforce a perforated section in the wall of the cannula and includes a forward edge, a rearward edge, at least one rib and at least one protrusion extending orthogonally from the forward edge and at least one protrusion extending from the rearward edge. A distal reinforcing band is disposed at the distal end of the elongate cannula and has a plurality of fingers that taper slightly inwardly toward the central axis of the hollow elongate cannula. | 03-19-2009 |
Libbe Jonkman, Drachten NL
| Patent application number | Description | Published |
|---|---|---|
| 20110106142 | SUTURING INSTRUMENTS AND SUTURING SYSTEMS - A needle storage and disposal cartridge is loaded with a needle receptor, and or suture and needle. By insertion of a forceps arm into the cartridge the needle receptor can be affixed to an arm of the forceps, and similarly removed after use. The forceps may conveniently be used for gripping and retaining a needle during suturing. A number of alternative suturing forceps and needle receptors are disclosed. | 05-05-2011 |
Libbe Jitze Jonkman, Drachten NL
| Patent application number | Description | Published |
|---|---|---|
| 20100145142 | MINIMAL INVASIVE NEUROSURGERY ASSEMBLY AS WELL AS A METHOD FOR NEUROSURGERY USING SUCH A NEUROSURGERY ASSEMBLY - A minimal invasive neurosurgery assembly including a flush assembly having flush assembly main part with a central passage extending through the main part from the distal end to the proximal end along a longitudinal axis, and having at least one tool insertion assembly. The tool insertion assembly may include a tool handling part that is detachably connectable to the flush assembly main part and that has at least one tool insertion channel that extends from the distal end to the proximal end of the tool handling part. The tool insertion assembly may also include an inner sheath that is connected to the tool handling part and has an inner sheath wall and at least one lumen extending parallel to the longitudinal axis and in which an associated one of the at least one tool insertion channel emanates. The inner sheath may be insertable through the central passage of the flush assembly main part. | 06-10-2010 |
Rudi Jonkman, Eindhoven NL
| Patent application number | Description | Published |
|---|---|---|
| 20080309406 | Full-Bridge Class-D Power Amplifier - The present invention relates to a full bridge class-D amplifier where one of the output terminals ( | 12-18-2008 |