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| Number | Title | Issue Date |
| 7182200 | Piezoelectricity-driven part feeder A moving table supports a parts conveying member. A fixed table is disposed below the moving table and supports the moving table so as to freely vibrate the moving table through a vibration generator. The vibration generator includes a first elastic member and a pie... | 02/27/2007 |
| 7157873 | Systems and methods for reducing torque disturbance in devices having an endless belt A system for reducing torque disturbance includes a motor mechanically coupled to an endless belt. The motor is operable to drive the belt, and the belt has a seam that causes a torque disturbance to the system. The system includes a data structure having a set of v... | 01/02/2007 |
| 7104394 | Conveying apparatus with piezoelectric driver A conveying apparatus comprises an elongated conveying bed which includes a proximal end and a distal end. A support structure for the conveying bed accommodates vibratory motion of a portion of the conveying bed extending from the proximal end a substantial distanc... | 09/12/2006 |
| 6994207 | Driving unit for transducer A vibrating transducer is coupled to one end of an elongated vibrating plate and a receiving transducer is coupled to the other end of the vibrating plate. Langevin transducers are used for the vibrating and receiving transducers. Each transducer includes a pair of ... | 02/07/2006 |
| 6868960 | Conveying apparatus A conveying apparatus is disclosed and which includes a supporting frame; an article transporting bed which is oriented in spaced relation relative to the supporting frame; a plurality of resilient supports mounted on both the supporting frame and the article transp... | 03/22/2005 |
| 6619470 | Method and system for vibratory conveyor control The present invention contemplates a system for controlling a vibratory conveyor on which a conveyor pan is mounted, the system including a drive coil for driving the vibratory conveyor with a vibrating motion; a sensing subsystem for detecting the vibrat... | 09/16/2003 |
| 6471040 | Vibratory feeder embodying self-contained control A vibratory conveying feeder, which includes a power control circuit for locally providing an adjusted drive signal to the vibratory drive. Inclusion of a power control circuit into one or more vibratory conveying feeders within a system including multipl... | 10/29/2002 |
| 6464070 | Linear conveyor and method for controlling the same A plurality of trough displacement characteristics and drive signals for driving a drive unit 26 for a trough 25 are determined in association with each other and the speed of transport of the articles M transported by the trough 25 having one of the trou... | 10/15/2002 |
| 6457577 | Vibratory conveyor In a vibratory conveyor which includes a trough for transporting objects, an exciting mechanism for vibrating the trough in a horizontal direction and a supporting mechanism for supporting the trough so as to be vibratile in the horizontal direction, the ... | 10/01/2002 |
| 6308822 | Conveying apparatuses, indication assemblies, methods of indicating operation of a conveying apparatus, and methods of operating a conveying apparatus Conveying apparatuses, indication assemblies, methods of indicating operation of a conveying apparatus, and methods of operating a conveying apparatus are provided. According to one aspect, a conveying apparatus includes a frame; a bed configured to conve... | 10/30/2001 |
| 6116408 | Apparatus and system for controlling the operating frequency of an electromagnetic vibratory feeder at a submultiple of the power line frequency An apparatus and system are provided for controlling the operating frequency of an electromagnetic vibratory feeder at a submultiple of the power line frequency. The apparatus is couplable to a terminal of an electromagnetic coil of the electromagnetic vi... | 09/12/2000 |
| 6079549 | Driver unit for an electrically driven vibratory conveyor A drive circuit for an electromechanically excited vibratory conveyor responds to the inductance fluctuations of the conveyor drive coil due to mechanical vibration so as to feed the coil with drive pulses having a repetition frequency commensurate with t... | 06/27/2000 |
| 5944170 | Stroke control system for a vibratory conveyor The present invention provides a stroke control system for a vibratory conveyor which has a vibrating trough driven by a variable frequency motor. The stroke control system includes a transducer connected to the vibrating trough for sensing a vibration am... | 08/31/1999 |
| 5931285 | Vibration conveyors A driving system for vibration conveyors of the resonance type has an electromagnetic circuit with an electromagnet with a yoke, with respect to which a running measurement of the current and voltage of the electromagnet is performed, that the electric pr... | 08/03/1999 |
| 5883478 | Apparatus and method for controlling vibrating equipment Apparatus for controlling vibratory machines of the type having at least one electromagnetic drive coil to drive a member at a resonant frequency includes a DC power supply; a programmable controller that produces PWM control signals that when applied to ... | 03/16/1999 |
| 5865297 | Vibratory parts-feeder In a vibratory parts-feeder, a bowl is combined with a base block by plural sets of single leaf spring. A controller is connected to an electro-magnetic coil of a drive part for the parts feeder. The bowl is torsionally vibrated nearly at a resonant frequ... | 02/02/1999 |
| 5477958 | Cop individualizing apparatus A cop individualizing apparatus operates a circular conveyor of the type having a helical cop guide track on a vibratory basis by providing two unbalanced electromotors whose speed is controllably varied via a frequency converter alternating between two f... | 12/26/1995 |
| 5472079 | Method and apparatus for controlling the drive of self-excited vibrating parts feeder A drive control method for a self-excited vibrating parts feeder which includes a parts feeder unit and a drive power supply for supplying an electric power of a desired frequency to an electromagnetic vibration generating unit to exert vibrations to the ... | 12/05/1995 |
| 5385003 | Method and apparatus for moving and closing packaging trays In order to prevent spilling the contents or fracturing a package being filled, a rigid tray is moved into a filling area by pushers in which the pusher is advanced under controlled acceleration and then deceleration for gently stopping the pusher in cont... | 01/31/1995 |
| 5284003 | Machine for conditioning product in a sealed bag A machine for conditioning filled and sealed bags for testing, to assure that the bags are accurately tested without damaging the product contained in the bags, and for packaging the bags that have passed the test in cartons with the longitudinal axis of ... | 02/08/1994 |
| 5205395 | Vibratory movement and manipulation apparatus and method Methods and apparatus for vibration-generated movement and manipulation, such as transportation, orientation, loading or sorting of materials are provided. At least one electromagnetic coil is disposed to act in a horizontal plane, and another electromagn... | 04/27/1993 |
| 5158170 | Automatic vibrator control A vibratory apparatus including a vibratory feedbowl, a circuit for providing impulses, and a manually adjustable controller connected to the impulse circuit for providing a controlled conductance path to the impulse circuit to controllably vibrate the fe... | 10/27/1992 |
| 5080218 | Vibratory feeding apparatus In a vibratory parts feeder, an output power of an inverter supplying AC voltage to each vibration generator (electric power supplied to the vibration generator) or input power to the inverter is controlled so as to reach the maximum during the feeding op... | 01/14/1992 |
| 5054606 | Control system for vibratory apparatus The invention relates to a control system for a vibratory apparatus such as vibratory feeders and vibratory conveyors. An accelerometer is provided for sensing the acceleration of vibratory movement of the vibratory apparatus. The signal generated by the ... | 10/08/1991 |
| 4899669 | Vibrating apparatus and method improvements for providing continuous flow of refuse derived fuel to fire power plants The apparatus and method are improvements over the refuse derived fuel (RDF) handling system disclosed in applicant's U.S. Pat. No. 4,774,893, in which the activated bins are equipped with centerless baffles made up of a plurality of stub type internal ba... | 02/13/1990 |
| 4811835 | Vibratory material feeder Mechanical resonance of the vibratory feeder is maintained by minimizing a phase angle difference between substantially sinusoidal drive voltage and current wave forms. The mass flow rate of material being fed is controlled by controlling the electrical p... | 03/14/1989 |
| 4774893 | System of handling refuse derived fuel utilizing same to fire power plants A system for handling refuse derived fuel (RDF) devised to make RDF fired power plants practical, that includes a method and apparatus for receiving, storing and discharging, distributing and feeding RDF at the plant that accepts such material for fuel, w... | 10/04/1988 |
| 4576526 | Arrangement for supplying powdered material to a spraying device An arrangement for supplying powdered material to a spraying device in an installation for thermal spraying comprises at least one powder storage container and an injection device by which the powder is introduced into a stream of carrier gas. A buffer ch... | 03/18/1986 |
| 4287056 | Sifter stroke screen The invention relates to a flat stroke sifter screen having a vibratory excitor mounted at the inlet end and drive springs at the outlet end with a counterbalancing member having a tuning plate and stabilizers for the counterbalance, whereby the lateral v... | 09/01/1981 |
| 4216416 | Electronic vibratory feed bowl driver A vibratory feed bowl driver having sensor for providing a signal responsive to the frequency and amplitude of vibration of a vibratory (parts) feeder and a driver circuit arrangement. The driver circuit arrangement is responsive to the output signal of the ... | 08/05/1980 |
| 4168774 | Vibratory apparatus This invention relates to a variable speed vibratory conveyor or feeder which comprises a material-carrying member mounted on isolation springs, and an exciter connected to the member by a spring system. The exciter carries a rotatably mounted eccentric w... | 09/25/1979 |
