Sonic Or Supersonic Energy Patents (Class 209/590)
  • Patent number: 10165340
    Abstract: Data is remotely collected from a plurality of fasteners in response to a query signal wirelessly transmitted by a reader. Each of the fasteners includes a sensor for measuring a parameter related to the stress on the fastener. A device adapted to be attached to each of the fasteners receives the query signal, activates the sensor to measure the parameter and wirelessly transmits the data including the parameter to the reader.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: December 25, 2018
    Inventors: Brian J Tillotson, Bradley J Mitchell, Peter E Herley, Brenda K Carlson, Kevin Y Ung, Tamaira E Ross, Steven C Venema, James T Farricker, Daniel A Hendricks, Richard R Rocks, Charles B Spinelli, David B Blackwell
  • Patent number: 9860687
    Abstract: A method for determining the locations of sensor devices in a sensor array in a structure is disclosed. The method may include placing a sensor device at a location. The method may also include receiving, at a mobile device, an identifier of the sensor device. The method may further include determining, by the mobile device, a compass direction and elevation angle from the sensor device to a base station. The method may additionally include determining a distance between the sensor device and the base station. The method may moreover include determining a location of the sensor device based at least in part on the compass direction and the elevation angle from the sensor device to the base station, and the distance between the sensor device and the base station. The method may furthermore include storing the location of the sensor in association with the identifier of the sensor device.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 2, 2018
    Assignee: Loop Labs, Inc.
    Inventors: Ryan Margoles, Brett Jurgens
  • Patent number: 9348026
    Abstract: An apparatus for marking an object includes a marking unit for marking the object with a laser beam, a transporting device for transporting the object and a device for determination of a position of the object by means of ultrasonic waves originating from the object. A pulsed laser beam is directed to the object to cause vibrations at a surface of the object, by which vibrations the object is excited to generate ultrasonic waves.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: May 24, 2016
    Inventors: Kevin L. Armbruster, Brad D. Gilmartin, Peter J. Kueckendahl, Bernard J. Richard, Daniel J. Ryan
  • Patent number: 9266711
    Abstract: A container handling installation in which retaining and transport elements transport containers in a transport direction and in which filling stations fill containers with product includes an inspection device for checking the container for unwanted foreign matter. The inspection device is integral with the retaining and transport element and includes a piezo sensor. Also included is an evaluation unit connected to the inspection device. The inspection device is configured to connect to the container such that the container and the inspection device move together in a respective direction of movement and in the transport direction.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 23, 2016
    Assignee: KHS GmbH
    Inventors: J├╝rgen Herrmann, Claas Fritsche, Marius Michael Herrmann, Alfred Drenguis
  • Patent number: 8346388
    Abstract: A system and method for automated piezoelectric sensor-based tactile sorting of plurality of small objects. A high accuracy, high precision delivery system targets the sensor which accounts for softness and mass of individual objects by measuring a force exerted and total contact time for each object upon passing contact with a sensing surface of a piezo sensor, wherein a plurality of objects cascade onto the sensor in one-by-one fashion. The quantified force and contact time values are then analyzed and compared against two threshold values or a range of threshold values which are predetermined and preset based on data from optimal objects and undesirable objects or possibly a spectrum of objects which has been analyzed and recorded to assist in calibrating the system.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: January 1, 2013
    Inventor: Jared Michael Tritz
  • Publication number: 20120132572
    Abstract: The present application discloses spherical polymer bead comprising embedded therein an ultrasonic identification chip, said chip comprising one or more resonator cavities, the dimensions of each of the one or more resonator cavities giving rise to an ultrasonic resonance frequency of 20 kHz or more. The application also discloses a bead sorting apparatus equipped with at least one ultrasonic transmitter and at least one ultrasonic receiver, and a method of measuring the ultrasonic code of an ultrasonic encoded bead using the bead sorting apparatus.
    Type: Application
    Filed: January 18, 2012
    Publication date: May 31, 2012
    Applicant: NOVO NORDISK A/S
    Inventor: Soren Flygenring CHRISTENSEN
  • Publication number: 20110315609
    Abstract: According to one embodiment, an ultrasonic line sensor includes a plurality of ultrasonic sensors each comprising a circular vibrating surface and generating an electrical signal in accordance with an ultrasonic wave that enters the vibrating surface; and at least one sound absorbing member that is provided between the vibrating surfaces of the ultrasonic sensors and a detection target, and that absorbs an ultrasonic wave, the sound absorbing member being arranged in a position where the sound absorbing member overlaps both edge portions of the vibrating surfaces in a scanning direction that is perpendicular to a conveying direction of the detection target such that effective regions, which are regions in the vibrating surfaces not overlapped by the sound absorbing member, each have two sides parallel to the conveying direction of the detection target.
    Type: Application
    Filed: December 14, 2010
    Publication date: December 29, 2011
    Inventors: Shota KURE, Takahiro YAMAMOTO, Junji MIURA, Kazuhiro ITSUMI, Takahisa NAKANO, Yukio OONUKI
  • Publication number: 20100314300
    Abstract: A stiffness detector transmits acoustic waves to a paper sheet at a predetermined angle to excite Lamb waves. The stiffness detector receives leaky waves of the Lamb waves propagated through the paper sheet at different angles with respect to the paper sheet by a plurality of reception sensors. The stiffness detector is configured to specify a maximum leak angle at which a leak amount of the acoustic waves from the paper sheet becomes maximum based on outputs from the plurality of reception sensors in the reception module and to judge a degree of fatigue of the paper sheet based on the specified maximum leak angle.
    Type: Application
    Filed: March 4, 2010
    Publication date: December 16, 2010
    Inventors: Kazuhiro Itsumi, Takahiro Yamamoto, Takahisa Nakano, Seiji Ikari, Junji Miura, Tsutomu Saito, Takanobu Nishimura
  • Patent number: 7837040
    Abstract: An apparatus for acoustic concentration of particles in a fluid flow includes a substantially acoustically transparent membrane and a vibration generator that define a fluid flow path therebetween. The fluid flow path is in fluid communication with a fluid source and a fluid outlet and the vibration generator is disposed adjacent the fluid flow path and is capable of producing an acoustic field in the fluid flow path. The acoustic field produces at least one pressure minima in the fluid flow path at a predetermined location within the fluid flow path and forces predetermined particles in the fluid flow path to the at least one pressure minima.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: November 23, 2010
    Assignee: Los Alamos National Security, LLC
    Inventors: Michael D. Ward, Gregory Kaduchak
  • Publication number: 20090042310
    Abstract: The present invention comprises methods and systems that use acoustic radiation pressure.
    Type: Application
    Filed: September 26, 2008
    Publication date: February 12, 2009
    Inventors: Michael D. Ward, Gregory Kaduchak
  • Publication number: 20090032444
    Abstract: A grain classifying device for accurately classifying the grains of uniform length, and an adhesive containing grains classified by the device and capable of connecting electrodes under a low pressure and being applicable to electrodes arranged in fine pitches. The grain classifying device (1) includes a dispersing means (2) for dispersing a plurality of grains (P). A grain orienting means (3) orients each of the dispersed grains in a transfer direction (X) of the grains (P) while spacing the grains apart from one another in the transfer direction (X) of the grains. A grain length measuring means (4) measures the length of each of the grains (P) oriented in the transfer direction (X). A grain separation means (5) separates the grains (P) having a predetermined length based on data related to the lengths of the measured grains (P).
    Type: Application
    Filed: September 22, 2006
    Publication date: February 5, 2009
    Inventors: Keiji Koyama, Tetsuya Kuwabara, Masaru Haga, Hideki Kashihara
  • Patent number: 6998559
    Abstract: The present invention relates to a system for determining characteristics of products of generally unequal size, e.g. apples, which are conveyed on product carriers, such as rollers of a conveying apparatus, and pass the system, the system comprising a detection device, arranged at some distance from the products, having a transmitter section and a receiver section, as well as a signal processing unit for processing signals to and from the system, including the signals of the receiver section for determining the characteristics, the system further comprising: a sensor which, prior to the passage of a product, scans the size of each passing product and produces a corresponding scanning signal, and a displacement device, for positioning, in accordance with each scanning signal, at least the receiver section of the detection device at a well-defined distance during the passage of each product.
    Type: Grant
    Filed: May 28, 2001
    Date of Patent: February 14, 2006
    Assignee: FPS Food Processing Systems B.V.
    Inventors: Josse De Baerdemaeker, Peter Coucke, Leonardus Paulus Crezee
  • Publication number: 20040251177
    Abstract: A method of sorting sorting objects within a bulk of objects from a heterogeneous population is provided. The bulk of objects to be sorted has an inherent variation, and at least one class, having less variation than the originally inherent variation of the bulk, is separated from the bulk. This lesser variation represents a quality of composition with reference to any organic material of the objects within the bulk.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 16, 2004
    Inventors: Bo Lofqvist, Jesper Pram Nielsen
  • Patent number: 6822183
    Abstract: A method of selecting bulk wood units for chemical pulping in alkaline conditions which consists of establishing a reference scale by selecting a test sample, measuring the acoustic velocity through each sample units, selecting acoustic velocity bands from the sample results, processing the sample units using known chemical pulping processes, measuring the percentage pulp yield, and then using the measured pulp yields and acoustic velocities to produce a reference scale; measuring the acoustic velocity through each of the units, comparing the velocity measurement for each unit against the reference scale, and then dividing the tested units into subgroups according to the predicted yield in chemical pulping.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: November 23, 2004
    Assignee: Canterprise Limited
    Inventor: John Corrie Fleming Walker
  • Patent number: 6541725
    Abstract: An object, such as a pistachio nut, is sorted based on a given trait. The sorting process commences by bouncing the object off a body so that the object emits a sound. The sound emitted by the object is converted to an electrical signal which is analyzed to determine electrical characteristics that indicate the trait of the object. For example, the electrical signal can be integrated and a signal gradient produced to discriminate among signals from different classes of objects.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: April 1, 2003
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Thomas C. Pearson
  • Publication number: 20030038066
    Abstract: In a machine for processing mail articles, the method of distinguishing between mail articles (P1, P2, P3) contained in envelopes made out of paper and mail articles contained in envelopes made out of plastics material, consists in displacing each mail article in front of a pressure member (5) so as to produce an acoustic signal that results from a suction effect of the pressure member on one face of said article while it moves in front of said pressure member, and in comparing said acoustic signal with a reference signal in order to detect whether the envelope of said article is made out of paper or out of plastics material.
    Type: Application
    Filed: September 4, 2002
    Publication date: February 27, 2003
    Inventors: Francois Chaume, Jean-Marc Teluob
  • Publication number: 20020157992
    Abstract: A magnetic ore purification system for enriching magnetic ore concentration in a feed material. The system includes an elutriator and at least one alternating current magnet. The system may also optionally have a device, which may be an ultrasonic transducer, for introducing vibrational energy into the elutriator, and a feedback control system. The elutriator has a feed port for introducing the feed material and an enriched port for collecting an enriched material having a magnetic ore concentration that is greater than the feed material. As the feed material passes between the feed port and the enriched port, the feed material is subjected to a low strength magnetic field generated by the alternating current magnet. The feed material may also be subjected to vibrational energy.
    Type: Application
    Filed: January 10, 2002
    Publication date: October 31, 2002
    Inventor: John R. McGaa
  • Publication number: 20020154571
    Abstract: A device for performing the manipulation of particles suspended in a fluid, comprises a chamber forming a duct for the flow of the fluid, and an acoustic transducer (10) and a reflector (12) for establishing an acoustic standing wave field across the width of the duct the spacing between the transducer and reflector is 300 microns or less. With such a small spacing, the device is particularly effective at concentrating the particles and lower operating voltages are required.
    Type: Application
    Filed: January 19, 2001
    Publication date: October 24, 2002
    Inventors: Joseph Cefai, David Anthony Barrow, William Terence Coakley, Jeremy John Hawkes
  • Patent number: 6422392
    Abstract: A process for removing ammonia from fly ash during processing on an inclined fluidized bed. The process begins by introducing a mixture of particulates having ammonia adsorbed therein into an inclined fluidized bed. Concurrently, a fluidizing gas is pre-heated and is also introduced into the fluidized bed. The mixture is then processed along the fluidized bed with the pre-heated fluidizing gas to achieve bubbling fluidization of the particles. This causes segregation by which a dense fraction settles downward and a light fraction rises upward in the bed. Ammonia in the particles is desorbed by the pre-heated fluidizing gas. The fluidizing gas is then scrubbed after the processing step to remove the desorbed ammonia. The process may also include the use of acoustic enhancement whereby an acoustic field is imposed on the fluidized bed to improve fluidization and segregation of the particles and to increase the efficacy of ammonia removal.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: July 23, 2002
    Inventor: Edward Kenneth Levy
  • Patent number: 6299695
    Abstract: A method and apparatus for processing or cleaning ceramic components that are contaminated with dust deposits are provided. Relative vibrations are generated between the ceramic components and the ambient atmosphere for dislodging dust deposits from the ceramic components. Dislodged dust deposits are collected and conveyed away for disposal or further use. To accomplish this, a screen base is disposed within a closable chamber. A first conveyor is disposed within the chamber below the screen base and leads to a transfer station. A mechanism for generating relative vibrations is disposed between the screen base and the atmosphere of the chamber. An enclosed second conveyor leads from the transfer station to a replacable receiving vessel. An infra sound producer is disposed within the chamber.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: October 9, 2001
    Assignee: Steag Aktiengesellschaft
    Inventor: Ralf Gilgen
  • Patent number: 6276536
    Abstract: A method for measuring the ripeness and the texture of a fruit, the method comprising a step for applying a vibration having sequentially hanging frequencies to a fruit to be measured, a step for measuring the intensity of the vibration applied to the fruit and the intensity of the vibration of the fruit, a step for measuring the weight of the fruit, a step for finding the transfer functional characteristic of the fruit by performing frequency analysis based on the intensity of the vibration applied to the fruit and the intensity of the vibration of the fruit, and computing the secondary resonance frequency f0 (i.e.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: August 21, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shoji Terasaki, Naoki Wada
  • Patent number: 6269952
    Abstract: Spheres are released from within plurospheres by mixing a fluid with fly ash or bottom ash particulate material obtained by burning coal to form a slurry. The slurry is vibrated at an ultrasonic frequency and with sufficient power that plurospheres in the particulate material are cracked open to release spheres of the material which are encapsulated within the plurospheres. The so-treated material is separated from the slurry to obtain the released spheres.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 7, 2001
    Assignee: Earth Sciences Limited
    Inventors: John H. Watt, John Hugo Nellmapius
  • Patent number: 6253603
    Abstract: In an apparatus for checking the condition of bank notes, each note is individually transported past a brush whose bristles are in contact with one face of the note. A piezoelectric bi-morph vibration sensor is attached to the brush, the voltage output from the sensor being dependent on the amplitude of vibration of the bristles of the brush brushing against a note. The poorer the condition of a note, i.e. the rougher that its surface is, then the greater will be the amplitude of vibration of the bristles. Thus, from the voltage output of the sensor it can be determined whether a note is of an acceptably good condition.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: July 3, 2001
    Assignee: NCR Corporation
    Inventor: Gary A. Ross
  • Patent number: 6234023
    Abstract: The invention provides an apparatus and method for fill level monitoring in which the height of contents in a container (10) is monitored. The apparatus comprises an ultrasound reciever (30) and signal processing means (50-56) adapted to receive signals from the receiver, the arrangement being such that the signal processing means (50-56) identifies a first signal (32), in use, which is representative of a wavefront (26) transmitted through the contents of the container (10) independently of the height of the contents in the container (10), and a second signal (34) that is representative of a wavefront (24) that is reflected from the interface (22) between the surface of the contents in the container (10) and the environment above the contents, and in which the signal processing means (50-56) uses the difference in travel time for the two wavefronts (24, 26) to provide a measurement of the level of the contents in the container (10).
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: May 22, 2001
    Assignee: M & A Packaging Services Limited
    Inventors: Andrew P. Collins, Steven M Dixon, Christopher Edwards, Stuart B Palmer
  • Patent number: 6186334
    Abstract: In a method of screening bulk material, a gas is conducted in counterflow to a direction of movement of bulk material for separating the bulk material into a fraction of coarse particles and a fraction of fine particles. In order to limit the amount of coarse particles in the outgoing fraction of fine particles, the amount of coarse particles contained in the fraction of fine particles is measured and compared with a desired value. When encountering a deviation of the measured the amount of coarse particles contained in the fraction of fine particles form the desired value, the energy of gas is so controlled as to match the amount of coarse particles contained in the fraction of fine particles with the desired value.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: February 13, 2001
    Assignee: Waeschle GmbH
    Inventors: Heinrich Dohmann, Hans-Heinrich Westendarp
  • Patent number: 5996808
    Abstract: A process and device for separating different types of particulates from a mixture, which is especially suited for separating unburned carbon from raw fly ash. The process entails separating raw fly ash by size into a fine component and a coarse component (the coarse component having typically higher levels of unburned carbon). The coarse, high carbon, fly ash component (or optionally both components) are processed through an inclined fluidized bed to produce an upgraded coarse component with reduced unburned carbon. An acoustic field is imposed on the inclined fluidized bed(s) in order to enhance the bed's ability to fluidize and segregate the unburned carbon. The upgraded coarse and fine components are then mixed to yield a final product.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: December 7, 1999
    Inventors: Edward Kenneth Levy, James Walter Parkinson, Barbara Jean Arnold, John Sigmund Salmento
  • Patent number: 5981892
    Abstract: A food handling conveyor apparatus includes a sound detection system for detecting the presence of a foreign object, such as a stone, among food product being conveyed. The apparatus includes a generally elongated vibratory conveyor bed along which food products are conveyed, with at least one discharge gate positioned at one end of the conveyor bed. An actuator is operatively connected to the discharge gate for effecting movement thereof between closed and open positions. A sound detection system of the apparatus, preferably including one or more directional microphones, is positioned in operative association with the conveyor bed and functions to differentiate between the sound of food product being conveyed, and the sound of a foreign object. The sound detection system is operatively connected with the actuator for the discharge gate, and effects opening of the discharge gate in timed relationship to detection of a foreign object so that the object is moved out of the food product stream.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: November 9, 1999
    Assignee: FMC Corporation
    Inventors: Randy K. Baird, Arthur L. Dean, Kenneth M. Marshall, Robert A. Krynock, Stephen M. Pellegrino, Steven R. Smith, Justin L. Emanuel, David G. Pounds
  • Patent number: 5974883
    Abstract: A system for authenticating bank notes by checking for raised print (37) produced by an intaglio printing process which only occurs on genuine bank notes. Each note (36) is individually transported past a pair of brushes (38) whose bristles are in contact with the two faces of the note. Microphones (28) are placed in close proximity to the brush means to sense the noise from the brush means which increases when there is raised print. Output from the microphones are digitized and applied to a data processing means (22) which determines whether the note contains raised printing, and hence whether the note is genuine or not, by generating a value based on the digitized outputs of the microphones (28) and comparing this value with stored values.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: November 2, 1999
    Assignee: NCR Corporation
    Inventor: Gary A. Ross
  • Patent number: 5929337
    Abstract: A non-contact apparatus for monitoring the contents of a container, especially but not exclusively for quality control monitoring purposes associated with high speed packaging processes, comprises a non-contact ultrasound generation member, adapted so as to generate an ultrasound signal within the container (1). A non-contact detection scheme is employed to enable the contents of the container to be monitored by analysing ultrasound signals that have propagated through or round the container (1) either transmitted through or reflected from the containers contents. In use, the apparatus may be adapted to provide information about container fill level (h) or the presence or absence of an insert (14) such as a head forming device by analysing the measured signal profiles generated by a ultrasound detection member (3).
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: July 27, 1999
    Assignees: M & A Packaging Services Limited, The University of Warwick
    Inventors: Andrew Peter Collins, Steven Mark Dixon, Christopher Edwards, Stuart Beaumont Palmer
  • Patent number: 5922959
    Abstract: Measuring the limpness of a note is necessary to separate a worn note out of circulation. Several methods are disclosed which can be used either alone or in combination to test for limpness. One method measures the note's ability to reflect light or transmit the light. Another method measures the response of the note to an acoustic wave. Another method measures the note's deflection to a pressure or force. Yet another method measures the dielectric value of the note when placed between the plates of a capacitor. A final method involves measuring the thermal conductivity of the note. In each case, a limp note will produce distinguishable results from a stiff note.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: July 13, 1999
    Assignee: Currency Systems International
    Inventor: Sohail Kayani
  • Patent number: 5632381
    Abstract: An apparatus for sorting paper materials includes a separating mechanism for thinning the paper materials and a sensing mechanism for classifying the paper material according to type. The separating mechanism includes a plurality conveyor belts operating at successively higher speeds, whereby passing materials from one conveyor belt to another conveyor belt results in spreading the paper material. The sensing mechanism includes a mechanical striking device to strike the paper material, a microphone to detect the sound caused by the striking device and an evaluation unit to determine the type of paper material on the basis of the sound.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: May 27, 1997
    Assignee: DST Deutsch System-Technik GmbH
    Inventors: Walter Thust, Jurgen Kirchhoff, Hans-Dieter Held, Leo Uelhoff
  • Patent number: 5615778
    Abstract: The present invention relates to a process to sort waste mixtures by irradiating the waste objects with electromagnetic and/or acoustic waves, by picking up the waves emanating from each irradiated waste object in a signal processor to identify it, and by transmitting signals from the signal processor to a separator which sorts out the identified waste object.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: April 1, 1997
    Assignee: RWE Entsorgung Aktiengesellschaft
    Inventors: Dieter Kaiser, Franz Wintrich
  • Patent number: 5207976
    Abstract: A fuel pellet surface defect inspection apparatus has an infeed conveyor, a discharge conveyor, and a slide and inspection assembly between the conveyors. The assembly includes a slide defining an inclined track having exit and entry ends adjacent the respective discharge and infeed conveyors. The entry end is at a higher elevation than the exit end. The assembly also includes an inspection station located along the track between its entry and exit ends. The station has lower and upper sound reflectors configured to define an annular inspection chamber through which a pellet moves as the pellet slides down the inclined track. The chamber completely encloses the cylindrical surface of the pellet as the pellet moves through the chamber. An ultrasonic inspection head is mounted at the station and transmits and receives sound energy to and from a pellet as it moves through the chamber such that the sound energy completely surrounds the moving pellet being inspected within the chamber.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: May 4, 1993
    Assignee: Westinghouse Electric Corp.
    Inventors: Roosevelt Garrick, John F. Wilson, Hassan J. Ahmed
  • Patent number: 5161697
    Abstract: The present invention represents a further extension of the automation of the various steps of the wood gluing process. This invention automatically selects and transmits to further work stations appropriately sized pieces of stock which, when glued together (utilizing various of the apparatus shown in the art for gluing such strips together), saves time in the formation of the end products. Information concerning the operation of the invention is recorded by customer number or other code to provide a permanent record of the results of the invention's operation.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: November 10, 1992
    Assignee: James L. Taylor Manufacturing Company
    Inventor: Bradley S. Quick
  • Patent number: 5152401
    Abstract: The instant invention pertains to ascertaining the condition (i.e. texture, maturity and extent of damage (if any)) of an agricultural commodity by: (a) inputting band-limited vibrations (i.e. limited to a specific frequency band); (b) sensing vibrational characteristics (e.g. energy, resonance, absorption frequency characteristics) resulting from the input vibrations, and; (c) analyzing the vibrational characteristics.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: October 6, 1992
    Assignee: The United States of America as representd by the Secretary of Agriculture
    Inventors: Henry A. Affeldt, Jr., Judith A. Abbott
  • Patent number: 5125514
    Abstract: The invention relates to a method of and apparatus for detecting unwanted material in the form of string or woven fabric in a flow of wanted fiber flocks or in a wanted fiber fleece. To this end, the flock flow is guided through a wave field which detects the presence of unwanted material in the flock flow so that the unwanted material can be separated out in a separator facility. The wave field can be an optical or acoustic wave field. The result obtained can, in addition to the separation of the unwanted material, be displayed in display means and/or recorded.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: June 30, 1992
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Oskar Oehler, Reinhard Oehler, Robert Demuth, Peter Anderegg
  • Patent number: 5113358
    Abstract: A non-contact caliper-type gauge particularly suited for measuring the thickness of a running web. In its preferred form, the system includes a pair of opposed scanning heads defining a gap through which the running web passes, the heads being adapted to transverse across the width of the running web. Each of the heads includes and ultrasonic transducer for directing energy at the web, detecting energy reflected from the face of the web nearest the respective transducer and determining the distance between a reference in the head and the facing surface of the web. One of the heads also includes a transducer, preferably an eddy current transducer, which operates on energy to which the web is transparent. The second transducer senses the distance between the heads thereby to determine any variations in the distance between the heads during traverse.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: May 12, 1992
    Assignee: Barber-Colman Company
    Inventor: Eric J. Reber
  • Patent number: 5060517
    Abstract: An immersion type automatic ultrasonic testing apparatus for detecting flaws of balls comprising a tank for containing a liquid medium of transmitting ultrasonic wave, a ball rotating device for rotating a ball to be tested, an ultrasonic flaws detection device for detecting surface flaws in the ball while swiveling a probe around the ball rotated by the ball rotating device or rotating the ball spirally by the ball rotating device with or without swiveling the probe, and a ball feeding device for feeding the ball to the position of the ball rotating device. The ball feeding device comprises an air cylinder for holding the ball by suction at the tip thereof. For the suction holding of the ball at the tip of the air cylinder, a level regulating device is additionally provided for setting a level of the liquid medium of transmitting ultrasonic wave in the tank wherein the ball rotating device and the ultrasonic flaws detection device are placed.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: October 29, 1991
    Assignee: NGK Insulators, Ltd.
    Inventors: Koji Fushimi, Shigeo Nishioka, Kazuhiro Konishi
  • Patent number: 4978495
    Abstract: A modified inspection apparatus for inspecting nuclear fuel pellets for surface defects includes a pellet guide chute assembly extending through an ultrasonic inspection chamber. The guide chute assembly has a support substrate and a pair of elongated plates attached on respective upper adjacent sides of the substrate. The substrate is composed of a pair of elongated wall sections rigidly attached together to have a V-shaped configuration in cross section. The plates are adjustably attached on the substrate wall sections for supporting a nuclear fuel pellet between and on adjacent longitudinal portions of the plates located in the inspection chamber.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: December 18, 1990
    Assignee: Westinghouse Electric Corp.
    Inventor: Hassan J. Ahmed
  • Patent number: 4955484
    Abstract: A device is disclosed for separating hard objects, such as stones, from a stream of wood in an apparatus for conveying or manipulating logs or blocks of wood including a conveyor section. The device includes a transducer disposed in a location suited for the detection of vibration. The transducer registers acoustic vibrations and is connected to a control unit by means of which hard objects conveyed along with the wood stream can be detected on the basis of the vibration signals they generate. The control unit is also used to control an exit gear incorporated in the conveyor section, so that hard objects which are detected will fall down from the stream of wood passing through the apparatus. The invention eliminates the need to build water-operated stone catchers as conventionally used for the removal of stones.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: September 11, 1990
    Assignee: Kone Oy
    Inventors: Kari Rintala, Jyrki Paarma, Mikko Sissala
  • Patent number: 4943328
    Abstract: The present invention represents a further extension of the automation of the various steps of the wood gluing process. This invention automatically selects and transmits to further work stations appropriately sized pieces of stock which, when glued together (utilizing various of the apparatus shown in the art for gluing such strips together), saves time in the formation of the end products.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: July 24, 1990
    Assignee: James L. Taylor Manufacturing Company Inc.
    Inventor: Bradley S. Quick
  • Patent number: 4894201
    Abstract: A modified inspection apparatus for inspecting nuclear fuel pellets for surface defects includes a pellet guide chute assembly extending through an ultrasonic inspection chamber. The guide chute assembly has a support substrate and a pair of elongated plates attached on respective upper adjacent sides of the substrate. The substrate is composed of a pair of elongated wall sections rigidly attached together to have a V-shaped configuration in cross section. The plates are adjustably attached on the substrate wall sections for supporting a nuclear fuel pellet between and on adjacent longitudinal portions of the plates located in the inspection chamber.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: January 16, 1990
    Assignee: Westinghouse Electric Corp.
    Inventor: Hassan J. Ahmed
  • Patent number: 4877516
    Abstract: An acoustic standing wave is established in a fluid medium with a varying energy density in its nodal planes. Particles in the fluid medium responsive to the acoustic energy accumulate at these nodal planes and by the action of the variations of energy density in conjunction with the fluid viscous forces and/or field forces acting in the direction of the nodal planes, the movement of the particles held at these planes can be controlled. The adverse effects of attenuation of the acoustic beams producing the standing wave are reduced in this system, because any streaming due to imbalance of the acoustic forces forming the standing wave does not act in the direction in which the movement of the particles can be controlled.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: October 31, 1989
    Assignee: National Research Development Corporation
    Inventor: Cornelius J. Schram
  • Patent number: 4819783
    Abstract: An automated inspection system for identifying objects by their geometrical shapes includes an orientation device wherein objects are conveyed one-by-one at constant velocity to abut at least one stationary member which urges the objects to an orientation common to other conveyed objects. After objects reach a stable common orientation, an inspection device is operated to detect waves which interact with the conveyed objects against the stationary background.
    Type: Grant
    Filed: July 29, 1986
    Date of Patent: April 11, 1989
    Assignee: Cochlea Corporation
    Inventors: James A. Pinyan, B. S. Buckley, Peter D. Galitzine
  • Patent number: 4809538
    Abstract: Ultrasonic leak detection apparatus which includes a cycloidal transfer mechanism for sequentially feeding a plurality of workpieces to a test station. An elevator at the test station alternately lifts workpieces in sequence to an elevated position to a test chamber and lowers workpieces from the test chamber to the transfer mechanism. An enclosure cooperates with the elevator to form the test chamber in which the workpiece is pressurized and microphones detect any leakage of air through cracks or the like. A reject station downstream of the test station includes facility for removing defective workpieces from the transfer line.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: March 7, 1989
    Assignee: Oakland Engineering Inc.
    Inventor: Alfred C. Fisch
  • Patent number: 4735088
    Abstract: An acoustic inspection system includes acoustic transducers to transmit and receive continuous acoustic waves at a constant frequency. Changes in phase and/or amplitude of acoustic waves reflected at different times from a fixed reference target through an isothermal transmission medium are detected. The temperature of the acoustic transmission path is controlled in response to the detected phase changes to maintain the wavelength of acoustic waves constant independent of changes in humidity and barometric pressure.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: April 5, 1988
    Assignee: Cochlea Corporation
    Inventors: James A. Pinyan, B. Shawn Buckley, Kenneth L. Blanchard
  • Patent number: 4690284
    Abstract: Apparatus (and method) for parts sorting and the like wherein parts and the like are transported into an interaction region and irradiated with wave energy which interacts with the parts and the like to provide wave energy that emits from the interaction region. The positions of the parts and the like as they move through the interaction region are detected at spaced locations along the path of travel therethrough. The wave energy that emits from the interaction region is sensed to derive a characteristic of the parts and the like at each of the spaced locations to provide signals from which the characteristic can be determined. The signals are analyzed for each spaced location to derive data representative of the characteristic which serves as the basis for sorting.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: September 1, 1987
    Assignee: Cochlea Corporation
    Inventors: B. Shawn Buckley, Roy H. Reichwein, Edward M. Buckley, James A. Pinyan
  • Patent number: 4602716
    Abstract: A process for determining the soundness, and the soundness-dependent germinative ability of sowing seeds is based on detecting the characteristic difference between the acoustic excitation response functions of right and damaged seeds. The seeds are excited by their impinging on a hard surface and produce an acoustic signal and by examining the response functions a comparison is performed to decide whether the seeds are right or damaged. Apparatus for carrying out the process includes a feed tank (1), a seed feeding mechanism, a sensing chamber (4) and a vibration sensor (5) for detecting acoustic signals within the chamber (4), the output of the vibration sensor (5) being connected to a signal processing unit (6).
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: July 29, 1986
    Assignee: Licencia Talalmanyokat Ertekesito Vallalat
    Inventors: Gabor Barla-Szabo, Bela Gyulay, Gabor Rajkai, Sarolta Deakne Karacsonyi, Pal Horvath
  • Patent number: 4576286
    Abstract: A system for sorting parts wherein a part to be sorted is irradiated with wave energy of a single frequency (or very narrow band of frequencies) which interacts with the part. Wave energy emanating from the part is sensed at many spatially separated places to generate an electric signal representative of a characteristic of the amplitude and phase of the detected wave energy at each place. The electric signal so generated is compared with a pre-established signal and any differences therebetween are determined to establish whether the part is within acceptable limits in terms of geometric characteristics, e.g., size, material characteristics and orientation. The part is then acted upon on the basis of the comparison.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: March 18, 1986
    Assignee: Cochlea Corporation
    Inventors: Bruce S. Buckley, Edward M. Buckley, Roy H. Reichwein
  • Patent number: 4557386
    Abstract: A system to measure geometric and electromagnetic characteristics of objects. Wave energy of a single frequency (or very narrow band of frequencies) is directed upon an object which reflects (or otherwise interacts with) the wave energy. The reflected wave energy is sensed by many spatially spaced sensors to provide electric signals whose amplitude and phase components are combined to give a quantity from which geometric and/or electromagnetic characteristics of the object can be ascertained.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: December 10, 1985
    Assignee: Cochlea Corporation
    Inventors: Bruce S. Buckley, Edward M. Buckley, Roy H. Reichwein