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| 20080254081 | Moist Wipe and Method of Making Same - A moist wipe having a web of fibers stabilized as with a suitable binder, and the stabilized, dry web having an anionic surface charge not greater than about 1.2 meq/Kg. A cationic functional agent in an aqueous imbuement is added to the web which is partially adsorbed by the web and a portion of the agent remaining free. Because the anionic surface charge on the substrate is relatively low, there remains in the free aqueous medium a sufficient quantity of the functional agent deliverable to the surface to achieve the desired efficacy. The resulting web will adsorb a limited amount of the cationic functional agent in the aqueous imbuement, and thereby an adequate amount of the agent remains in the solution free of the web for deliverance to the surface, thereby obviating high loadings of the imbuement and the active functional agent. | 10-16-2008 |
| 20080280520 | Apparatus and Method For Manufacturing a Multi-Layer Web Product - An apparatus and method for manufacturing a multi-layer web product. A long fiber stream is directed around a rotating carding cylinder. Two combing cylinders are disposed adjacent the carding cylinder to comb a first web of long fiber and a second web of long fiber, respectively, from the carding cylinder. A first conveyor receives the first web from the first combing cylinder and transports the first web toward a layering point. Similarly, a second conveyor receives the second web from the second combing cylinder and transports the second web toward the layering point. A short fiber deposition unit is disposed adjacent the second conveyor and deposits short fibers onto the second web. At the layering point, the first conveyor deposits the first web onto the second web, with the short fibers sandwiched therebetween, to form a layered web product. | 11-13-2008 |
| 20090276978 | APPARATUS AND METHOD FOR MANUFACTURING A MULTI-LAYER WEB PRODUCT - An apparatus and method for manufacturing a multi-layer web product. A long fiber stream is directed around a rotating carding cylinder. Two combing cylinders are disposed adjacent the carding cylinder to comb a first web of long fiber and a second web of long fiber, respectively, from the carding cylinder. A first conveyor receives the first web from the first combing cylinder and transports the first web toward a layering point. Similarly, a second conveyor receives the second web from the second combing cylinder and transports the second web toward the layering point. A short fiber deposition unit is disposed adjacent the second conveyor and deposits short fibers onto the second web. At the layering point, the first conveyor deposits the first web onto the second web, with the short fibers sandwiched therebetween, to form a layered web product. | 11-12-2009 |
| 20100032867 | Method and apparatus for embossing non woven webs - A method of embossing an air-laid or double recrepe absorbent fabric including: providing a web of fabric; moving the web material along a web material path; providing a rotary embossing roller and a cooperating backing roller, the rotary embossing roller having a hard rubber embossing surface having a laser engraved embossing pattern with a depth of from about 0.010 inches to about 0.040 inches; providing a nip between the rotary embossing roller and backing roller; moving the web material through the nip between the rotary embossing roller and backing roller whereby a predetermined pattern is embossed on the web material. The embossing roller surface is biased toward the surface of the smooth backing roller. The surface of the backing roller being composed of a soft rubber compound having a durometer hardness of between 20 to 60. | 02-11-2010 |
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| 20090198150 | Biopsy Device - A method is provided for calibrating a surgical biopsy system. The biopsy system includes a biopsy instrument and control unit. The biopsy instrument includes a piercer, rotatable cutter, and a port for receiving tissue samples. The method comprises the steps of translating the cutter distally until the translation of the cutter is stopped at an extended position and recording the extended position. The cutter is then translated from the extended position proximally until the translation of the cutter is stopped at a retracted position proximal to the extended position. The retracted position is recorded. The method further comprises the step of rotating the cutter to a rotation speed while the cutter is located at the retracted position and, if determined that the rotation speed is within a predetermined rotation speed range, a feedback signal is provided on the display allowing the operator to progress to the next procedural step. | 08-06-2009 |
| 20120209142 | BIOPSY DEVICE - A method is provided for calibrating a surgical biopsy system. The biopsy system includes a biopsy instrument and control unit. The biopsy instrument includes a piercer, rotatable cutter, and a port for receiving tissue samples. The method comprises the steps of translating the cutter distally until the translation of the cutter is stopped at an extended position and recording the extended position. The cutter is then translated from the extended position proximally until the translation of the cutter is stopped at a retracted position proximal to the extended position. The retracted position is recorded. The method further comprises the step of rotating the cutter to a rotation speed while the cutter is located at the retracted position and, if determined that the rotation speed is within a predetermined rotation speed range, a feedback signal is provided on the display allowing the operator to progress to the next procedural step. | 08-16-2012 |
| 20140316299 | BIOPSY DEVICE - A method is provided for calibrating a surgical biopsy system. The biopsy system includes a biopsy instrument and control unit. The biopsy instrument includes a piercer, rotatable cutter, and a port for receiving tissue samples. The method comprises the steps of translating the cutter distally until the translation of the cutter is stopped at an extended position and recording the extended position. The cutter is then translated from the extended position proximally until the translation of the cutter is stopped at a retracted position proximal to the extended position. The retracted position is recorded. The method further comprises the step of rotating the cutter to a rotation speed while the cutter is located at the retracted position and, if determined that the rotation speed is within a predetermined rotation speed range, a feedback signal is provided on the display allowing the operator to progress to the next procedural step. | 10-23-2014 |
| 20150297197 | BIOPSY DEVICE - A method is provided for calibrating a surgical biopsy system. The biopsy system includes a biopsy instrument and control unit. The biopsy instrument includes a piercer, rotatable cutter, and a port for receiving tissue samples. The method comprises the steps of translating the cutter distally until the translation of the cutter is stopped at an extended position and recording the extended position. The cutter is then translated from the extended position proximally until the translation of the cutter is stopped at a retracted position proximal to the extended position. The retracted position is recorded. The method further comprises the step of rotating the cutter to a rotation speed while the cutter is located at the retracted position and, if determined that the rotation speed is within a predetermined rotation speed range, a feedback signal is provided on the display allowing the operator to progress to the next procedural step. | 10-22-2015 |
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| 20110041432 | SLEEVE SYSTEM AND METHOD OF USING - Herein is disclosed a sleeve system and methods of using the system. The system uses an elongated open-ended sleeve, and mounting plate parts which mate with each other to form a mounting plate and which are securable to each other and to a wall. The mounting plate thus formed comprises a collar which, when the mounting plates parts are secured together, presses against portions of the outer surface of the sleeve to hold the sleeve in place. | 02-24-2011 |
| 20120036801 | SLEEVE SYSTEM AND METHOD OF USING - Herein is disclosed a sleeve system and methods of using the system. The system uses an elongated open-ended sleeve, and mounting plate parts which mate with each other to form a mounting plate and which are securable to each other and to a wall. The mounting plate thus formed comprises a collar which, when the mounting plates parts are secured together, presses against portions of the outer surface of the sleeve to hold the sleeve in place. | 02-16-2012 |
| 20120097405 | METHOD OF FIRESTOPPING A THROUGH-PENETRATION USING A FUSIBLE INORGANIC BLENDED-FIBER WEB - A method of firestopping a through-penetration is disclosed, which makes use of a fusible inorganic blended-fiber web. The fusible inorganic blended-fiber web can provide a fire-stopped through-penetration without the use of sealants, intumescent materials, and the like. The fusible inorganic blended-fiber web may comprise a blend of at least first, low melting inorganic fibers and second, high melting inorganic fibers. The fusible inorganic blended-fiber web comprises a bulk density of at least about 7 pounds per cubic foot (0.112 grams/cc). | 04-26-2012 |
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| 20150320951 | Systems And Methods For Intelligent Gas Source Management - Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display. | 11-12-2015 |
| 20150320952 | Enhanced Performance Verification Port For Therapeutic Gas Delivery - Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display. | 11-12-2015 |
| 20150320953 | Systems and Methods for Delivery of Therapeutic Gas - Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display. | 11-12-2015 |
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| 20100163730 | INFRARED IMAGING PROBE - An infrared imaging probe that includes an elongated wand and an electrically isolating connection between the imaging components, located at the distal end of the wand, and the image processing components, located at the proximal end of the wand. | 07-01-2010 |
| 20120169866 | THERMAL IMAGER WITH NON-UNIFORMITY CORRECTION - Infrared cameras are susceptible to fixed-pattern noise artifacts. These artifacts are due to numerous sources and typically show up as non-uniformities in an IR image of a uniform scene. Devices for and methods of refining non-uniformity corrections in an infrared (IR) camera are provided that correct for remaining fixed pattern noise. | 07-05-2012 |
| 20140132774 | THERMAL IMAGING CAMERA WITH REPOSITIONABLE ACTIVE PORTIONS OF FOCAL PLANE ARRAY - A thermal imaging camera with a repositionable focal plane array (FPA) is disclosed. An active portion of the FPA is used by the camera to generate a thermal image. The FPA may be positioned such that a defect in the FPA is located in an unused and inactive portion of the FPA. | 05-15-2014 |
| 20140184805 | THERMAL CAMERA AND METHOD FOR ELIMINATING GHOSTING EFFECTS OF HOT-TARGET THERMAL IMAGES - Various apparatuses and methods for compensating for ghosting effects in thermal imaging devices are disclosed. Offsets in thermal image data due to ghosting effects on thermal sensors may be modeled, predicted, and/or eliminated by various embodiments of the present invention. These models may be time-varying to compensate for dynamic offset behavior, and may be based on formulas, lookup tables, or the like. Predicted offset amounts may be compensated for in various ways in order to produce more accurate thermal image data free from accumulated offset. | 07-03-2014 |
| 20140267353 | THERMAL IMAGE ANIMATION - Animation of a thermal image captured by a thermal imager that includes automatically changing particular aspects of the presentation of the image. The coloring of the thermal image may automatically change through two or more color presentations. The colors which may automatically change or be “animated” may be any colors in the usual rainbow of color or in the greyscale. The animation may include a series of small, stepwise incremental changes that gradually change the image. If timed correctly and if the increments are sufficiently small, the transitions of the image may appear smooth, in the manner of a movie or cartoon. | 09-18-2014 |
| 20150022667 | ACTIVITY AND/OR ENVIRONMENT DRIVEN ANNOTATION PROMPTS FOR THERMAL IMAGER - A thermal imaging camera comprises an infrared lens assembly and associated IR sensor for detecting thermal images of a target scene, a processor, and at least one additional sensor. The at least one additional sensor is configured to provide measurement data to the processor, where it is compared to a predetermined requirement. If the measurement data satisfies the predetermined requirement, the camera will prompt the user via a display. During use, the camera can prompt the user to provide annotation data, conduct a thermographic inspection, inspect the target scene, or perform other tasks based on the measurement data. | 01-22-2015 |
| 20150369730 | LASER ILLUMINATED GAS IMAGING - Aspects of the invention generally relate to illumination gas imaging and detection. Camera systems can illuminate a target scene with light sources configured to emit absorbing and non-absorbing wavelengths with respect to a target gas. An image of the target scene illuminated with a non-absorbing wavelength can be compared to a non-illuminated image of the target scene in order to determine information about the background of the target scene. If sufficient light of the non-absorbing wavelength is scattered by the scene toward a detector, the target scene comprises an adequate background for performing a gas imaging process. A camera system can alert a user of portions of the target scene suitable or unsuitable for performing a gas imaging process. If necessary, the user can reposition the system until sufficient portions of the target scene are recognized as suitable for performing the gas imaging process. | 12-24-2015 |
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| 20090063058 | Inertia And Load Torque Estimating Method And Apparatus - A method and apparatus for estimating a system inertia and a load torque in a motor controller, the method comprising the steps of providing an acceleration command signal, determining a motor position, using the motor position to generate an acceleration feedback signal, mathematically combining the acceleration feedback signal and a load torque signal to generate a system inertia estimate, mathematically combining the system inertia estimate and the acceleration command signal to generate a motor torque signal, mathematically combining the system inertia estimate and the acceleration feedback signal to generate an inertia torque and mathematically combining the inertia torque and the motor torque signal to generate the load torque estimate. | 03-05-2009 |
| 20090212732 | UNIVERSAL ADAPTIVE TORQUE CONTROL FOR PM MOTORS FOR FIELD-WEAKENING REGION OPERATION - The invention includes a motor controller and method for controlling a permanent magnet motor. In accordance with one aspect of the present technique, a permanent magnet motor is controlled by, among other things, receiving a torque command, determining a normalized torque command by normalizing the torque command to a characteristic current of the motor, determining a normalized maximum available voltage, determining an inductance ratio of the motor, and determining a direct-axis current based upon the normalized torque command, the normalized maximum available voltage, and the inductance ratio of the motor. | 08-27-2009 |
| 20100060210 | METHOD AND APPARATUS FOR AUTOMATICALLY IDENTIFYING ELECTRICAL PARAMETERS IN A SENSOR-LESS PMSM - A method and apparatus for determining electrical parameters for commissioning a sensor-less permanent magnet synchronous machine uses knowledge of the rotor position to apply balanced pulses along the rotor magnet axis and perpendicular to the rotor magnet axis allowing measurement of q- and d-inductance at multiple current levels without substantial rotor movement. | 03-11-2010 |
| 20100237817 | Method and Apparatus for Estimating Rotor Position in a Sensorless Synchronous Motor - The present invention provides a simple, robust, and universal position observer for use with sensorless synchronous machines. The observer may be implemented using an equivalent EMF model of a synchronous machine or, alternately, using a sliding mode controller based on the equivalent EMF model of the synchronous machine. The observer may be used on any type of synchronous machine, including salient or non-salient pole machines such as a permanent magnet, interior permanent magnet, wound rotor, or reluctance synchronous machine. The observer provides low sensitivity to parameter variations and disturbances or transient conditions in the machine. In addition, no knowledge of speed is required as an input to the observer and an estimated position may be calculated using a subset of the machine parameters. | 09-23-2010 |
| 20100301790 | ROTOR POSITION ESTIMATOR FOR AN ELECTRICAL MACHINE - A method for estimating a rotor position in an electrical machine is provided. The method is applicable to electrical machines that have magnetic saliency. The method includes extracting the rotor position from a demodulated output signal generated in response to an injected high frequency carrier signal and determining a position error compensation based upon a demodulation delay and a velocity or rotational frequency of the electrical machine. The method also includes estimating the rotor position by applying the position error compensation to the extracted rotor position. | 12-02-2010 |
| 20100320948 | Method and Apparatus for Increased Current Stability in a PWM Drive - The present invention provides an improved current regulator for PWM based drives for electric motors. The invention provides compensation for the rotor position signal for delays introduced due to the PWM algorithm and for digital sampling present in such a drive. Current regulator commonly operate in a two-phase reference frame, requiring forward and reverse coordinate transformations between the physical current values and the two-phase reference frame variables. The present invention provides an improved compensation in the forward transformation by determining the phase lag between the commanded voltage reference and the output voltage reference and by further compensating the forward transformation for errors introduced due to sampling the current either at different sampling instances than the rotor position or at multiple sampling instances during a carrier period. Additionally, compensation during the reverse transformation is provided to compensate for errors introduced due to sampling the current and rotor position. | 12-23-2010 |
| 20120268050 | Method and Apparatus for Estimating Rotor Position in a Sensorless Synchronous Motor - The present invention provides a simple, robust, and universal position observer for use with sensorless synchronous machines. The observer may be implemented using an equivalent EMF model of a synchronous machine or, alternately, using a sliding mode controller based on the equivalent EMF model of the synchronous machine. The observer may be used on any type of synchronous machine, including salient or non-salient pole machines such as a permanent magnet, interior permanent magnet, wound rotor, or reluctance synchronous machine. The observer provides low sensitivity to parameter variations and disturbances or transient conditions in the machine. In addition, no knowledge of speed is required as an input to the observer and an estimated position may be calculated using a subset of the machine parameters. | 10-25-2012 |
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| 20110185868 | Exact Weight Cutting System for Food Products - A system for cutting blocks of food product into bars of substantially equal weight. The system includes a cutter conveyor configured to receive incoming blocks of food product and move the blocks along an in-line processing path in a plane for cutting; a programmable logic controller coupled to the cutter conveyor; and, multiple stations associated with the cutter conveyor. One such station is a camera vision system configured to create an image of the slab portion, and further including a camera controller coupled to the vision system and the PLC, and configured to determine an optimized cut solution of the slab portion from the image and data related to the food product, and is configured to provide the cut solution to the PLC. The PLC is configured to control the cutting of the food product, based on the optimized cut solution, into bars of substantially equal weight. | 08-04-2011 |
| 20120272803 | Exact Weight Cutting System for Food Products - A system for cutting blocks of food product into bars of substantially equal weight. The system includes a cutter conveyor configured to receive incoming blocks of food product and move the blocks along an in-line processing path in a plane for cutting; a programmable logic controller coupled to the cutter conveyor; and, multiple stations associated with the cutter conveyor. One such station is a camera vision system configured to create an image of the slab portion, and further including a camera controller coupled to the vision system and the PLC, and configured to determine an optimized cut solution of the slab portion from the image and data related to the food product, and is configured to provide the cut solution to the PLC. The PLC is configured to control the cutting of the food product, based on the optimized cut solution, into bars of substantially equal weight. | 11-01-2012 |
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| 20100080022 | METHOD AND APPARATUS FOR PRE-CHARGING POWER CONVERTERS AND DIAGNOSING PRE-CHARGE FAULTS - Power conversion systems and diagnostic techniques are presented for detecting suspected converter faults when a pre-charge circuit is engaged during system startup, in which known or estimated system characteristics are used to derive expected converter voltage values or rate of change values and the levels are measured during startup to ascertain whether the pre-charge circuit or other converter components are faulted. | 04-01-2010 |
| 20110241580 | MOTOR DRIVE SYSTEM WITH BUS VOLTAGE CONTROL - A method for controlling a motor drive system, the system comprising an AC-DC converter coupled to a DC-AC inverter by a DC bus, a motor coupled to and driven by the inverter, and a load coupled to and driven by the motor is provided. The method includes accessing a motion profile for the motor and load and determining power losses of the converter, the inverter, the motor and the load. The method also includes controlling the voltage of the DC bus based upon the motion profile and the power losses to enhance the motor drive system efficiency, reliability and motor shaft performance. | 10-06-2011 |
| 20150066167 | Motion Control Systems With Improved Energy Efficiency - Aspects of the present invention provide a motion control system implementing an electronic motion profile for a load that is highly optimized for power efficiency by implementing several performance parameters that are non-overlapping with respect to time. Each performance parameter may characterize an acceptable level of performance or error with respect to the electronic motion profile. Performance parameters may include, for example, maximum position error, maximum velocity error, maximum error for regions or sections of the electronic motion profile, position settling time, position repeatability, position accuracy, position bandwidth, velocity bandwidth, acceleration time, motor thermal capacity, motor temperature and drive temperature. | 03-05-2015 |
| 20150066400 | Sizing And Tuning Methodology For Optimized Motion Control Components And Energy Efficiency - Aspects of the present invention provide a tool for simulating a motion control system that simulates performance and energy for a given configuration. The simulation analysis considers a motion profile and one or more corresponding performance parameters, and the resulting configuration provides hardware elements, such as drives and motors, and settings of those elements. The simulation allows optimization for energy efficiency, as opposed to only speed or accuracy. | 03-05-2015 |
| 20150288257 | System and Method for Detection of Motor Vibration - An improved system for monitoring vibration of an electric machine is disclosed. According to one embodiment, sensors are positioned in a plane orthogonal to the motor shaft and each sensor detects vibration along at least one axis of the motor. The sensors are oriented such that the polarity of each sensor is reversed. The pairs of sensors may be used to isolate specific vibrations within the motor. According to another embodiment, a sensor may be mounted directly to the motor shaft. The sensor on the motor shaft directly detects vibrations along the motor shaft. Optionally, a second sensor may be mounted to a fixed location within the motor housing, and the combination of the sensor on the motor shaft and the sensor at a fixed location may be used to isolate specific vibrations within the motor. A motor controller may adjust operation of the motor to reduce the isolated vibration. | 10-08-2015 |
