Leferink
Bernardus Wilhelmus Franciscus Leferink, Nijmegen NL
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20100058937 | TREATMENT DEVICE FOR TREATING FOOD PRODUCTS WITH CONDITIONED AIR - A treatment device for treating food products with conditioned air comprises a housing which delimits a treatment space and is provided with an entry and an exit, at least one conveying device for conveying the products from the entry throughout the treatment space to the exit, the conveying device between the entry and the exit following a conveying path with several windings which are situated one above the other, air-circulation device for circulating conditioned air throughout the treatment space via a hollow drum. According to a first aspect, air-conditioning device are provided upstream of the air-circulation device for conditioning the air. According to a second aspect, at least one winding of the conveying path near the entry has a pitch which is different to the pitch of the downstream windings. | 03-11-2010 |
Franck Leferink, De Lutte NL
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20110043222 | DUAL DEFORMABLE REVERBERATION CHAMBER - An arrangement for measuring the effectiveness of a shielding material against electromagnetic fields. | 02-24-2011 |
Frank Leferink, De Lutte NL
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20110050483 | SYSTEM TO PREVENT TWO ROTATING ANTENNAS FROM ILLUMINATING EACH OTHER - An apparatus or a method for preventing radio-frequency (RF) interferences between rotating antennas. For example, the invention is particularly applicable to radar and communication systems on board naval ships. | 03-03-2011 |
20120326933 | APPARATUS FOR MEASURING THE STRENGTH OF AN ELECTROMAGNETIC FIELD - There is disclosed an apparatus for measuring the strength of an electromagnetic field. The apparatus comprises a plurality of antennas arranged such that the field is received from all directions, each antenna supplying an RF signal as output. The apparatus also comprises a plurality of transforming modules, each of said modules being fed with the RF signal supplied by one of the antennas, each of said modules transforming the impedance of the RF signal it receives as input, so as to supply another RF signal as output. The apparatus also comprises a plurality of converting modules, each of said modules being fed with the RF signal supplied by one of the transforming modules, each of said modules converting the RF signal it receives as input into a DC current it supplies as output, said DC current varying substantially as a logarithmic function of the said RF signal. | 12-27-2012 |
Manfred Leferink, Koeln DE
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20130145808 | TAPERED-ROLL STAND FOR MAKING SEAMLESS PIPE - A tapered roll stand for making seamless pipe has a stationary frame formed relative to a workpiece-travel direction with a pair of laterally and horizontally oppositely open windows. Respective cover doors carried on the frame are vertically shiftable between respective closed positions covering the respective windows and open positions offset therefrom and exposing the respective windows. A pair of tapered rolls are each shiftable horizontally through a respective one of the windows into a use position inside the frame, lying to a respective horizontal side of the direction, and rotatable about a respective axis forming an acute angle with the direction. A pair of Diescher disks are vertically engageable with a workpiece extending in the direction between the tapered rolls, and respective roll-positioning actuators carried on the doors are couplable with the tapered rolls in the use position for setting positions of the tapered rolls. | 06-13-2013 |