Patent application number | Description | Published |
20090036854 | Absorbent Article Comprising a Liquid-Permeable Material Layer - The invention concerns an absorbent article comprising at least one liquid-permeable layer material ( | 02-05-2009 |
20090212468 | APPARATUS AND METHOD FOR FORMING AIR-LAID ABSORBENT CORES - An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel, means for transferring a core element on the first mat-forming wheel onto a core element on the second mat-forming wheel while the latter core element still is maintained in its mould. The apparatus has means for applying a protective layer to the bottom of each mould of the second mat-forming wheel, means for applying a web of casing material on the peripheral surface of the first mat-forming wheel, means for guiding said web of casing material onto the periphery of the second mat-forming wheel, and means for changing the synchronization of the mat-forming wheels in order to control the time at which the leading edge of a mould on one of the mat-forming wheels passes the nip. A method of producing cores with different sizes without change of moulds. | 08-27-2009 |
20090255621 | APPARATUS AND METHOD FOR FORMING AIR-LAID ABSORBENT CORES - An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel. Means are also provided for applying a first and second web of casing material onto the peripheral surface of the first and second mat-forming wheel, respectively, for providing a third web of casing material into the nip between the first and second mat-forming wheel, for applying an adhesive coating on both sides of the third web, the mat-forming wheels being so positioned that the formed core elements on the respective first and second mat-forming wheels will abut the third web when passing the nip between the first and second mat-forming wheel, and for pressing together the portions of the three webs located outside the contour of the core element, containing the first and second core element, whereby the air-laid core elements will encapsulated in casing material. Also, a method for forming air-laid absorbent cores. | 10-15-2009 |
20100001426 | APPARATUS AND METHOD FOR FORMING AIR-LAID ABSORBENT CORES - An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel, each of the mat-forming wheels having a series of moulds along its peripheral surface, air-laying means for supplying air-entrained fibrous material to the moulds, suction means maintaining the formed core elements in their moulds during a part of the path of the moulds on the respective mat-forming wheel and means for transferring a core element on the second mat-forming wheel onto a core element on the first mat-forming wheel while the latter core element still is maintained in its mould, at least the air-laying means associated with the second mat-forming wheel having means for supplying a mixture of air-entrained fibrous material and discrete particles. The two mat-forming wheels form a nip between each other that the second core element will abut the first core element before transfer. | 01-07-2010 |
20100013118 | MAT-FORMING WHEEL - A mat-forming wheel for forming air-laid absorbent cores for sanitary absorbent articles, such as diapers, sanitary napkins, incontinence protectors and the like, said wheel having a series of moulds along its peripheral surface, each mould having up-standing walls and a bottom. The up-standing walls of the mould are formed in an element of a flexible material, which element is releasably attached to a foraminous substrate of rigid material, which runs along the whole circumference of the mat-forming wheel. | 01-21-2010 |
20110281977 | METHOD FOR FORMING AN ABSORBENT CORE - A method for forming an absorbent core. The method includes the steps of forming and compressing an absorbent core, followed by passing the absorbent core through a subsequent nip between two rolls. At least one of the rolls has a surface including an elastic material, such that the hard-spot number of the absorbent core is reduced. Also, a device for forming absorbent cores as well as absorbent cores produced using the method. | 11-17-2011 |
Patent application number | Description | Published |
20090141700 | TECHNIQUE FOR PERFORMING A RANDOM ACCESS PROCEDURE OVER A RADIO INTERFACE - The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network, A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources. | 06-04-2009 |
20090215450 | Technique for Performing a Random Access Procedure Over a Radio Interface - The invention relates to a technique of performing a random access procedure over a radio interface ( | 08-27-2009 |
20090268692 | METHOD AND DEVICE FOR COMMUNICATING A SIGNAL - A communication unit and a method for communicating at least one signal over a channel of a first channel type and at least one signal over a channel of a second channel type, which is different from the first channel type. The apparatus comprises a timer adapted to schedule a predetermined time period, during which interference due to simultaneous communication of signals over the channel of the first channel type and the channel of the second channel type is anticipated. Also, the apparatus comprises a processing unit adapted to apply, during the predetermined time period, an interference counteracting process for counteracting interference between any signal communicated over the channel of the first channel type and any signal communicated over the channel of the second channel type. The interference counteracting process comprises changing, during the predetermined time period, from a first to a second format for representing information transmitted over the channel of the first channel type, the second format being more robust than the first format. | 10-29-2009 |
20130308615 | TECHNIQUE FOR PERFORMING A RANDOM ACCESS PROCEDURE OVER A RADIO INTERFACE - The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources. | 11-21-2013 |
20150189678 | Technique for Performing a Random Access Procedure over a Radio Interface - The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources. | 07-02-2015 |
Patent application number | Description | Published |
20090085794 | RADAR LEVEL GAUGE SYSTEM - A radar level gauge system, for determining a filling level of a product contained in a tank, comprising a transceiver configured to transmit and receive electromagnetic signals, a probe arranged to extend towards and into the product inside the tank and configured to guide transmitted signals towards a surface of the product, where signals are reflected, and reflected signals back from the surface of the product. The probe has a mechanical and direct electrical connection to a conductive tank structure. The radar level gauge system further comprises processing circuitry connected to the transceiver and configured to determine the filling level based on the transmitted and reflected signals, and a probe coupling device connected to the transceiver. The probe coupling device includes a first coupling segment configured to couple electromagnetic signals between the transceiver and the probe with a first coupling efficiency and a second coupling segment configured to couple electromagnetic signals between the transceiver and the probe with a second coupling efficiency, the second coupling efficiency being different from the first coupling efficiency. | 04-02-2009 |
20090121917 | SYSTEM AND METHOD FOR FILLING LEVEL DETERMINATION - A method for determining a filling level of a product contained in a tank, by means of a radar level gauge system comprising a transceiver for generating, transmitting and receiving electromagnetic signals; a probe connected to the transceiver and arranged to guide a transmitted electromagnetic signal from the transceiver towards and into the product inside the tank, and to return a reflected electromagnetic signal resulting from reflection of the transmitted electromagnetic signal by a surface of the product back towards the transceiver; and a plurality of reference reflectors each being arranged at a respective known position along the probe and being configured to reflect a portion of the transmitted electromagnetic signal back towards the transceiver. The method comprises the steps of identifying, based on received electromagnetic signals reflected by the reference reflectors, a set of reference reflectors located above the surface of the product; selecting first and second reference reflectors comprised in the set of reference reflectors; determining a propagation velocity compensation factor based on a known distance between the first and second reference reflectors and a distance therebetween determined using received electromagnetic signals reflected by the first and second reference reflector, respectively; and determining the filling level based on a received electromagnetic signal reflected by the surface of the product, and the propagation velocity compensation factor. | 05-14-2009 |
20090289835 | MULTI-CHANNEL RADAR LEVEL GAUGE SYSTEM - A radar level gauging system for determining a filling level of a product contained in a tank by transmitting and receiving microwave signals over at least two functionally independent channels. Each channel has an electronics unit with transceiver circuitry arranged on a printed circuit board and processing circuitry connected to the transceiver circuitry for determining the filling level based on a relation between transmitted signals and received signals, and each electronics unit is electronically and galvanically separated from other electronics units. The system further comprises a single antenna for emitting microwave signals into the tank, and a hollow waveguide for guiding microwave signals between each transceiver circuitry and the antenna. Each electronics unit further comprises feeding circuitry arranged on the printed circuit board, the feeding circuitry comprising at least one feeding probe protruding into the waveguide for feeding the microwave signals into the waveguide. | 11-26-2009 |
20090303106 | IMPEDANCE MATCHED GUIDED WAVE RADAR LEVEL GAUGE SYSTEM - A radar level gauge system, for determining a filling level of a product contained in a tank, the radar level gauge system comprising: a transceiver for generating, transmitting and receiving electromagnetic signals; a probe electrically connected to the transceiver at a probe-transceiver connection and arranged to extend towards and into the product contained in the tank, for guiding a transmitted signal from the transceiver towards a surface of the product, and for returning a surface echo signal resulting from reflection of the transmitted signal at the surface back towards the transceiver; an impedance matching device arranged to extend along a portion of the probe inside the tank, an extension of the impedance matching device, in a direction perpendicular to the probe, decreasing along the portion of the probe with increasing distance from the probe-transceiver connection, to thereby provide impedance matching between an impedance of the probe-transceiver connection and an impedance of the probe; and processing circuitry connected to the transceiver for determining the filling level based on the surface echo signal. | 12-10-2009 |
20100156702 | SYSTEM AND METHOD FOR FILLING LEVEL DETERMINATION - A radar level gauge system using microwaves for measuring a level of a surface of a product in a container, comprising a waveguide arranged to extend into the product contained in the container, wherein a plurality of reference impedance transitions are arranged at known position along the waveguide and being configured to reflect a portion of transmitted electromagnetic signals back towards the transceiver. Preferably, each of the reference impedance transitions has a first reflection coefficient for the electromagnetic signals when the level of the surface is above the reference impedance transition and a second reflection coefficient for the electromagnetic signal when the level of the surface is below the reference reflector, the first reflection coefficient being substantially lower than the second reflection coefficient. According to this design, a higher accuracy of filling level measurements can be achieved. | 06-24-2010 |
20110221629 | RADAR LEVEL GAUGE WITH IMPROVED RADAR WINDOW - A radar level gauge for determining the filling level of a product in a tank, comprising a transceiver for transmitting and receiving microwaves, processing circuitry connected to the transceiver and adapted to determine the filling level, an antenna connected to said transceiver and arranged to emit and receive microwaves through an opening of the tank, and a microwave transmissive sealing member adapted to cover said opening and to provide pressure sealing of the tank. The sealing member comprises a metal grid layer providing structural strength, which metal grid layer has sealed openings formed to allow transmission of microwaves. | 09-15-2011 |
20120137768 | RADAR LEVEL GAUGE WITH DIELECTRIC ROD CONNECTION - A radar level gauge using electromagnetic signals to determine a filling level of a product in a tank, comprising an electronics unit including transceiver circuitry, a signal propagation device arranged to direct electromagnetic signals into the tank and to return electromagnetic signals reflected from the tank, and a directional coupler. The gauge further comprises a wave guiding structure comprising a rod of a dielectric material. A mounting portion of the electronics unit defines an opening and is detachably mountable on the dielectric rod so that the rod extends through the opening and is at least partly surrounded by the opening. The mounting portion is further arranged to secure the circuitry portion relative the rod so that said directional coupler is in a position to couple signals between the transceiver circuitry and the rod. | 06-07-2012 |
20120169528 | RADAR LEVEL GAUGING USING FREQUENCY MODULATED PULSED WAVE - A method for measurement of a distance to a surface of a product kept in a tank method comprises transmitting a pulse train of distinct carrier wave pulses having a duration greater than 1 microsecond and shorter than 100 milliseconds, the pulse train has an average duty cycle of less than 50 percent, each pulse has a defined center frequency, selected according to a frequency scheme within a predetermined frequency range, greater than 5% of an average center frequency. The method further comprises correlating actual phase properties of received pulses with expected phase properties to provide an updated estimation of the distance. | 07-05-2012 |
20120319891 | GUIDED WAVE RADAR LEVEL GAUGE SYSTEM WITH DIELECTRIC CONSTANT COMPENSATION THROUGH MULTI-MODE PROPAGATION - A guided wave radar level gauge system, comprising a transmission line probe configured to support a first propagation mode such that it travels along the transmission line probe with a first propagation velocity exhibiting a first dependence on a dielectric constant of the surrounding medium, and support a second propagation mode such that it travels along the transmission line probe with a second propagation velocity exhibiting a second dependence, different from the first dependence, on the dielectric constant of the surrounding medium. The guided wave radar level gauge system further comprises processing circuitry connected to the transceiver for determining the filling level based on the reflected electromagnetic signal in the first propagation mode and the second propagation mode, and a known relation between the first dependence and the second dependence on the dielectric constant of the surrounding medium. Hereby, a filling level determination that is independent of the dielectric constant of the medium surrounding the transmission line probe can be achieved. | 12-20-2012 |
20130009803 | MULTI-CHANNEL RADAR LEVEL GAUGE - A level gauge for detecting process variables related to a distance to a surface of a content in a tank, comprising a first and second functionally independent circuitry arrangements comprising transceiver circuitry and processing circuitry. The gauge further comprises a transmission line probe connected to the circuitry arrangements, the transmission line probe extending into the content in the tank and being adapted allow propagation of first and second transmission modes, and a feeding arrangement connected to couple electromagnetic signals into the probe in first and second propagation modes. | 01-10-2013 |
20130076559 | RADAR LEVEL GAUGING WITH DETECTION OF MOVING SURFACE - A radar level gauging principle including transmitting at least two time separated carrier wave pulses having equal carrier frequencies, determining a change in phase shift associated with two pulses in the transmit signals having equal frequencies, comparing the change with a threshold value, and depending on a result of the comparing step, determining the distance based on a relationship between the transmit signals and the return signals. | 03-28-2013 |
20130076560 | MFPW RADAR LEVEL GAUGING WITH DISTANCE APPROXIMATION - Level gauging including an approxiamtion of a distance to the surface of a product kept in a tank. The approxiamtion is determined by relating an amplitude of a first harmonic of an IF signal with an amplitude of a second harmonic of the IF signal. | 03-28-2013 |
20140083183 | ARRANGEMENT AND METHOD FOR TESTING A LEVEL GAUGE SYSTEM - The invention relates to a test arrangement comprising a waveguide, a first signal reflecting device and a second signal reflecting device. The first signal reflecting device is configured to reflect an electromagnetic signal traveling along the waveguide from the second signal reflecting device back towards the second reflecting device and to allow, at least during a time period, an electromagnetic signal traveling along the waveguide from the second signal reflecting device towards the first signal reflecting device to pass the first signal reflecting device. Hereby, a selected number of passages through a waveguide can be used to simulate passage through a much longer waveguide, and that this allows for use of a high-quality waveguide which would otherwise be too bulky, too heavy or too expensive to use depending on field of application. | 03-27-2014 |
20140084945 | INTERFACE DETECTION - The invention relates to a method for determining a level of a material interface in a tank, by means of a radar level gauge system comprising a transceiver; a probe for guiding a transmitted electromagnetic signal towards the material interface. The probe comprises a first plurality of reference impedance transitions located above the interface at known physical distances from a reference position, and a second plurality of reference impedance transitions located below the interface at known physical distances from the reference position. The method comprising determining electrical distances to the first and second plurality of reference impedance transitions based on a signal reflected by the reference impedance transition, determining, a first and a second approximation function relating the first and second sets of electrical distance values to the physical distances; and determining the level of the material interface based on the first approximation function and the second approximation function. | 03-27-2014 |
20140085130 | GUIDED WAVE RADAR LEVEL GAUGE SYSTEM WITH DIELECTRIC CONSTANT COMPENSATION THROUGH MULTI-FREQUENCY PROPAGATION - The present invention relates to a method of determining a filling level of a product contained in a tank by propagating a first transmitted electromagnetic signal in a first frequency range and a second transmitted electromagnetic signal in a second frequency range different from the first frequency range along a transmission line probe towards a surface of the product in the tank, receiving a first reflected electromagnetic signal in the first frequency range and a second reflected electromagnetic signal in the second frequency range, and determining the filling level based on a time-of-flight of the first reflected electromagnetic signal and a difference in time-of-flight of the first reflected electromagnetic signal and the second reflected electromagnetic signal. | 03-27-2014 |
20140085132 | RADAR LEVEL GAUGING USING FREQUENCY MODULATED PULSED WAVE - A method for measurement of a distance to a surface of a product kept in a tank method comprises transmitting a pulse train of distinct carrier wave pulses having a duration greater than 1 microsecond and shorter than 100 milliseconds, the pulse train has an average duty cycle of less than 50 percent, each pulse has a defined center frequency, selected according to a frequency scheme within a predetermined frequency range, greater than 5% of an average center frequency. The method further comprises correlating actual phase properties of received pulses with expected phase properties to provide an updated estimation of the distance. | 03-27-2014 |
20140111371 | RADAR LEVEL GAUGE SYSTEM WITH REDUCED ANTENNA REFLECTION - A radar level gauge system for determining a filling level in a tank. The radar level gauge system comprises a transceiver, a horn antenna having a first opening connected to the transceiver and a second opening facing a surface of the product in the tank, and processing circuitry connected to the transceiver for determining the filling level based on an electromagnetic surface reflection signal. The horn antenna is configured in such a way that an electrical distance from the first opening to the second opening, along a path defined by an intersection between a wall of the horn antenna and a half-plane starting from and extending in parallel with a cone axis of the horn antenna, is different for different orientations of the half-plane with respect to the cone axis. Hereby, disturbance from an antenna reflection signal can be reduced, which provides for improved measurement of high filling levels. | 04-24-2014 |
20150177044 | GUIDED WAVE RADAR LEVEL GAUGING WITH PROBE RETAINING ELEMENT - A GWR level gauge system for determining a filling level in a tank. The system comprises a tank, a transceiver, a surface waveguide comprising a single conductor transmission line probe, connected to the transceiver, arranged extending vertically into the tank and configured to guide the electromagnetic transmission signals towards the surface and to guide the reflected electromagnetic signals back to the transceiver; processing circuitry connected to the transceiver and configured to determine the filing level based on received reflected electromagnetic signals; a plurality of retaining elements arranged in fixed positions in relation to an inside of the tank and spaced apart along the probe, wherein each of the retaining elements circumscribes the probe, and is configured to allow movement of the probe in a vertical direction relative the retaining element, and to restrict movement of the probe in a horizontal direction relative the retaining element. | 06-25-2015 |
20150177163 | SYSTEM AND METHOD FOR DETERMINING DENSITY OF A MEDIUM IN A TANK - A system and method for determining a density of a non-conducting medium in a tank is disclosed where the relationship between a dielectric constant and a density of the medium is known. The system comprises a transceiver, and a waveguide, the waveguide extends towards and into the medium. The system further comprises a first microwave resonator located along the waveguide. The first microwave resonator has a resonance frequency, which depends on a dielectric constant of a medium surrounding the resonator according to a known relationship, and is arranged to reflect a portion in the frequency domain of a signal being guided along the waveguide. The system further comprises processing circuitry connected to the transceiver and configured to determine the resonance frequency based on a received reflected signal, and to determine a density of the medium at the location of the first microwave resonator based on the resonance frequency. | 06-25-2015 |