Vibration Patents (Class 29/DIG46)
  • Patent number: 5713124
    Abstract: A current-limiting device is provided having a low profile configuration (generally flat polyhedron) that defines a cavity of predetermined dimensions and an elongated circuitous path through the cavity. The device also includes provisions for supporting a current-limiting fusible element along the path. The cavity is filled with a pulverulent arc-quenching filler material. In one specific arrangement, the path of the fusible element is defined by one or more U-shaped sections substantially spanning the length or width of the cavity. The fusible element is arranged in a predetermined geometry to include a length of the fusible element that is longer than the overall straight-line path via a configuration of steps or bends along its length.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: February 3, 1998
    Assignee: S&C Electric Company
    Inventor: Hiram S. Jackson
  • Patent number: 5708257
    Abstract: A heating assembly 1 for transferring liquid metal 28 has a closed cross-section and includes a refractory tube 4 wrapped in an insulating layer 5 which is in turn surrounded by an inductor 3 enclosed in refractory concrete within a metal shell, the insulating layer 5 consisting of an insulating refractory concrete layer 5a. The heating assembly 1 may be used in a liquid metal holding furnace 9 provided with a supply of pressurised gas Pr for producing metal parts.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: January 13, 1998
    Assignee: Seva
    Inventors: Jean-Louis Comarteau, Daniel Boudot, Alain Remy, Patrice Nykiel
  • Patent number: 5703916
    Abstract: Apparatus and method for loosening a stuck reactor pressure vessel stud. A nuclear reactor pressure vessel has a threaded blind bore therein receiving an upright threaded stud having a centrally disposed passage longitudinally therethrough. A pulsar pump is in communication with the passage for supplying a pulsating liquid into the passage and thence into the bore. As the fluid exits the passage, it will push against the bottom of the bore and exert an upwardly directed hydraulic force against the end of the stud for upwardly lifting the stud. A controller is connected to the pulsar pump for controllably operating the pulsar pump. As the hydraulic force of the pulsating fluid lifts the stud, the fluid will migrate between the threads of the stud and the bore for peening or removing any debris from therebetween and washing it upwardly between the stud and bore to a suction pump in communication with the bore. The suction pump suctions the debris-containing liquid from the bore.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: December 30, 1997
    Assignee: Westinghouse Electric Corporation
    Inventors: John J. Wilhelm, Herman Schemberger
  • Patent number: 5644835
    Abstract: A method of making an elongated electrical heating element having a resistance wire with a helical portion extending between two lead pins surrounded by compacted insulating powder in an outer casing. The lead pins are attached to a tightly coiled resistance wire by screwing threaded portions at the inner ends of the lead pins into coiled portions at the outer ends of the resistance wire. The lead pins are pulled further apart to stretch the coiled resistance wire to form the helical portion of the resistance wire and then attached to a resistance meter. One of the lead pins is then rotated relative to the other lead pin to adjust the effective electrical resistance of the heating element to an accurate and uniform valve. The resistance wire and lead pins are mounted in an outer casing which further stretches the helical portion to a predetermined length. The outer casing is then filled with insulating powder in a conventional vibrating filling machine.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: July 8, 1997
    Assignee: Mold-Masters Limited
    Inventor: Egan Villringer
  • Patent number: 5579567
    Abstract: A pin unseating tool is adapted for unseating tapered pins firmly seated in tapered sockets. The tool includes a shank having one end removably attached to an adapter. The adapter has a threaded hole for screwing onto any tapered pin having a threaded tip that extends out of the socket. Mounting an air impact hammer to the other end of the shank and applying a repeating pounding force along the axis of the tool will quickly and effortlessly unseat the pin. The adapter is securely screwed onto the pin, so that it will not bounce off during the procedure, or damage the thread thereon. The adapter is removable from the shank, so that other adapters with different size holes can be fitted onto the shank for unseating pins of different sizes.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: December 3, 1996
    Inventor: Robert Acevedo
  • Patent number: 5517745
    Abstract: A fiber optic sign and method of making the same are disclosed. A plurality of fibers are arranged to form a design, preferably by a template, and are then bonded together into a block of glue, epoxy, rubber, or other castable liquid. Arrangement of the fibers is accomplished by placing them on a template and vibrating them until they fall through holes in the template.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: May 21, 1996
    Inventors: Daniel Preston, Ward Fleming
  • Patent number: 5386626
    Abstract: A method for manufacturing a circuit board with a plurality of conductive terminal pins includes the steps of: providing a bed with an array of receiving holes formed therein; providing the bed on a vibrating apparatus; placing a plurality of conductive terminal pins on the bed, each of the terminal pins having a shank and an enlarged head; operating the vibrating apparatus to permit insertion of the shank of each of the terminal pins into a respective one of the receiving holes, the enlarged heads of the terminal pins being sized to prevent extension thereof in the respective one of the receiving holes; providing a fiber glass reinforcing plate formed with an array of through-holes; providing a fiber glass circuit board body having a bottom side formed with an array of connectors; superimposing the reinforcing plate and the circuit board body on the bed such that each of the connectors of the circuit board body and the heads of the terminal pins extend in a corresponding one of the through-holes and abut aga
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: February 7, 1995
    Assignee: Cen Tronic Co., Ltd.
    Inventor: Hing-Liang Cheng
  • Patent number: 5355577
    Abstract: Abstract: A method of rapidly assembling many discrete microelectronic or micro-mechanical devices 56 (FIG. 2 ) in a precise configuration (FIG. 8f). The devices are placed randomly on a template (FIG. 3 ) consisting of a pair of oppositely charged planar electrodes. The upper electrode contains a multiplicity of apertures. The template is vibrated and the devices are attracted to the apertures and trapped thereat. The shape of a given aperture determines the number, orientation, and type of device that it traps. The process is completed by mechanically and electrically connecting the devices. The present method for serf-assembly allows many sub-millimeter sized electronic components or other particles to be rapidly assembled into a predetermined configuration. The method relies on vibration and weak electrical or magnetic forces.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: October 18, 1994
    Inventor: Michael B. Cohn
  • Patent number: 5285720
    Abstract: Disclosed is an improved apparatus and method of manufacturing wood trusses which utilizes an apparatus and method incorporating the use of a vibrator and the application of vibration forces during the process of seating connector plates in the wood cord members of the truss.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: February 15, 1994
    Inventor: Ronnie F. Wright
  • Patent number: 5263567
    Abstract: A method for producing relative motion on multiple articles by providing a tray with cavities, locating each article in a separate cavity and banking all articles against a similar cavity wall without tilting the tray, movement of the articles being generated by placing the tray between a horizontal vibration device and at least one cooperating bumper, the vibrations having an amplitude decreasing with time according to a predetermined decay envelope.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: November 23, 1993
    Assignee: Robotic Vision Systems, Inc.
    Inventor: Pat V. Costa
  • Patent number: 5121533
    Abstract: A fitting of a first member into a second member is performed until an insertion depth becomes a predetermined value while applying ultrasonic vibration continuously to either or both of the members and, thereafter, the application of ultrasonic vibration is made intermittent.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: June 16, 1992
    Assignee: Mitsubishi Denki K.K.
    Inventors: Nagao Saito, Naotake Mohri
  • Patent number: 5029388
    Abstract: An apparatus and method are provided for remotely inserting and feeding a sleeve within a selected tube to be serviced mounted in a tubesheet of a nuclear steam generator, so as to relieve reverse forces generated during the insertion and feeding of the sleeve and to reduce operator interaction. The device includes a tool having a frame, at least one gripper unit having gripping fingers which extend from a top plate of the tool for detachably suspending the frame from a tube in close proximity to the selected tube. The gripper unit also includes a hydraulically actuated cylinder for retracting the gripping fingers toward the top plate of the tool to forcibly position the tool against the underside of the tubesheet. An advancing assembly supported by the frame is also provided for remotely inserting and feeding the sleeve into the selected tube. This advancing assembly is vibrated by way of a vibrator mounted thereon.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: July 9, 1991
    Assignee: Westinghouse Electric Corp.
    Inventor: Daniel J. Statile
  • Patent number: 4993098
    Abstract: The apparatus for vibratory cleaning the surface of an article from foreign matter, comprising at least one exciter (1) of mechanical pulses, including an electromagnetic inductor (2) with a plate (3), a frame (7) and at least one striking surface to be cleaned in an area or areas of the most probable location of the foreign matter, fixedly mounted on the frame (7). Each electromagnetic inductor (2) with the plate (3) closely adjoining this inductor (2) is fixedly mounted on the frame (7).
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: February 19, 1991
    Inventors: Vladimir D. Kharitonov, Vadim Y. Granovsky, Pavel V. Kuznetsov, Alexandr P. Odnoral, Anatoly V. Voronov
  • Patent number: 4807349
    Abstract: A method and apparatus for removing frozen, stuck or sealant anchored fasteners from aircraft assemblies that cannot be unscrewed by conventional screwdrivers. A pulsating force is applied through the longitudinal axis of the apparatus to the head of the fastener while simultaneously torquing the fastener alternately and sequentially in counterclockwise and clockwise directions until resistance to the removal of the fastener has been reduced to permit removal by conventional screwdriver.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: February 28, 1989
    Assignee: The Boeing Company
    Inventor: B. Brian Blackmore
  • Patent number: 4759892
    Abstract: A body having a large number of protrusions is aligned with a honeycomb surface having a greater number of openings, selected openings being engaged by the protrusions when the body is aligned, by positioning the body against the honeycomb surface and vibrating it until the protrusions engage. The method is of particular use in aligning flexible masks to end faces of honeycomb structures in the fabrication of solid particulate filter bodies. Particular mask and honeycomb structure geometries are suggested for automation of the process.
    Type: Grant
    Filed: July 15, 1981
    Date of Patent: July 26, 1988
    Assignee: Corning Glass Works
    Inventor: Roy T. Bonzo
  • Patent number: 4722824
    Abstract: The disclosure relates to a method whereby complex shapes, not moldable in a single molding operation, are molded in plural parts, each part being of the same or different powdered metal composition or prealloy of the type disclosed. One or more of the parts preferably has bumps or dimples thereon for joining to another of the parts in the manner to be described. The other part can also have depressions for receiving the bumps to aid in alignment of the parts prior to processing.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: February 2, 1988
    Assignee: Fine Particle Technology Corp.
    Inventor: Raymond E. Wiech, Jr.
  • Patent number: 4712974
    Abstract: A part positioning apparatus is provided for accurately positioning and angularly orienting a variety of different parts or components for pick-up by a robotic part handling device. The apparatus includes a bowl-like part receptacle which is subjected to a vibratory force so that a part placed on a concave interior surface of the receptacle slides thereover, under the influence of gravity, and assumes an equilibrium position in a designated area of a horizontal plane thereby positioning the part with respect to X and Y axes. Thereafter the receptacle is rotated about a vertical axis to angularly orient the part in a desired direction.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: December 15, 1987
    Assignee: Polaroid Corporation
    Inventor: Peter E. Kane
  • Patent number: 4682912
    Abstract: For laying and joining successive sections of pipe, a vehicle is movable over a course along which the pipe is to be laid. Carried on the vehicle is a crane, the outer end portion of which is movable both vertically and horizontally relative to the course of the pipeline. A controllable grapple mounted on that outer end of the crane is engageable with a section of the pipe, so that operation of the grapple together with the crane enables each section of the pipe to be picked up, moved into position over and deposited along the course. A vibrator is attached to the grapple and serves to induce vibration thereinto and from the grapple into the section of pipe being carried. The vibration is induced as an end of the section carried by the grapple is slidably mated with another section of the pipe which lies along the course. The vibration also is used to assist in bedding the pipe section being laid.
    Type: Grant
    Filed: December 9, 1980
    Date of Patent: July 28, 1987
    Inventor: John T. Henry
  • Patent number: 4517024
    Abstract: Wire is passed through apparatus having two treatment zones, the first treatment zone containing six wire cleaning heads and the second treatment zone containing two wire cleaning heads. Each cleaning head consists of a primary cylindrical chamber flanked by two secondary cylindrical chambers of substantially smaller diameter, the wire passing axially through the cylinders. A working fluid such as dilute alkali, water or an organic solvent is pumped into the primary cylindrical chamber via a tangentially aligned inlet, it circulates in the primary chamber, and leaves via the secondary chamber with a very high annular velocity due to the reduction in the diameter of circulation. The high circulation speed causes vibration in and around the wire in the secondary chambers with resultant abrasion of the surface of the wire. In an alternative embodiment up to all but one of the cleaning heads may be replaced by dies.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: May 14, 1985
    Inventor: Robert P. Gough
  • Patent number: 4447181
    Abstract: A tool holder (10) for mounting a tool T to a carrier (11), base member (12) and a tool holding member (13) secured together to form the tool holder unit. Confronting surfaces (19,20) of the tool holder members are disposed in facial engagement about the periphery of a recess (21) receiving a resilient pad (22). The compressed pad provides an antivibration, antichattering effect in the use of the tool holder.
    Type: Grant
    Filed: September 8, 1982
    Date of Patent: May 8, 1984
    Assignee: Ikegai Tekko Kabushiki Kaisha
    Inventor: Toshitake Asano
  • Patent number: 4436479
    Abstract: A device is described for orienting intravenous needles or other similar articles having relatively long shank portions which terminates in bevelled or flat tips. The device has a fixture for supporting the needles at an angle to the horizontal and with the bevelled tip resting on a knife edge. A vibrator is coupled to the needle supporting fixture causing the needle to turn to its most stable position on the knife edge where the flat portion engages the knife edge.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: March 13, 1984
    Assignee: Joule' Technical Corporation
    Inventor: Archille Belloli
  • Patent number: 4327568
    Abstract: The present invention relates to a method of cold rolling metal parts to achieve improved surface uniformity and hardening. The method comprises applying to the work piece a pulsating force at a frequency of from about 30 to 300 the duration of the pulses being at least twice the time between pulses. The pulsating force varies from about 10% to 100% above the minimum force necessary to achieve a smooth rolled finish. The method contemplates just statically rolling the work piece and thereafter applying the pulsing force which, in such instance may reduce to zero.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: May 4, 1982
    Assignee: Wilhelm Hegenscheidt Gesellschaft mbH
    Inventor: Garri Berstein
  • Patent number: 4202224
    Abstract: For use in rotating a bushing of an assembled track, wherein the bushing is press-fitted into apertures of a pair of links, first and second members are securable to one and the other of such pair of links, and a rapidly extendable and retractable cylinder interconnects the first and second members for providing a vibratory motion which, for optimum results, should be at resonant frequency to the links while rotational torque is being applied to such bushing.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: May 13, 1980
    Assignee: Caterpillar Tractor Co.
    Inventors: James A. Hooker, Dean W. Martin, Shellie O. Williamson
  • Patent number: 4164064
    Abstract: A method and apparatus for loading solder preforms on to the pins of a multiple pin connector. A positioning plate has open sockets in the pattern of the pins of the connector to be loaded, the sockets being sized to receive a single solder preform in each one. A slidable retainer fits into a channel below the positioning plate to partially close the sockets and retain preforms therein. Loose preforms are contained in a dam attached to the top of the positioning plate and are shaken into the sockets on a vibrator table. The dam and excess preforms are removed and the positioning plate is covered by a cover plate to hold the preforms in place. The connector pins are then inserted through slots in the retainer, through the preforms and through holes in the cover plate. The retainer is removed, allowing the preforms to drop on the pins and the loaded connector is removed from the apparatus.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: August 14, 1979
    Assignee: General Dynamics Corporation
    Inventor: Joseph A. Reavill
  • Patent number: 4040165
    Abstract: An improved method of making syntatic modules which includes the following steps. A preform mold and a casting mold are formed of predetermined configuration. A woven roving of predetermined size is formed to provide a skin. Additionally a layer of spacer material is formed which includes a plurality of voids. The roving is attached to the spacer material to form a laminate. The laminate is formed to the insidewalls of the preform mold and then the preform mold is filled with a plurality of hollow balls. A thin layer of resin is poured into the preform mold to connect the balls. The composite is removed from the preform mold and placed into the casting mold after spacer material is attached to the exposed end portions of the composite. A syntatic foam resin is added to the casting mold interior so as to fill all spaces between the balls and all voids in the spacer material. The syntatic foam resin is then cured and the mold parts are removed thereby producing a module.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: August 9, 1977
    Assignee: Albany International Corporation
    Inventors: James D. Miessler, Arne I. Johnson
  • Patent number: 4001053
    Abstract: A method of removing residual stress of a work formed of metal or ceramic includes basically two separate treatments, a vibration treatment called percussion treatment and a heating treatment.
    Type: Grant
    Filed: November 2, 1973
    Date of Patent: January 4, 1977
    Assignee: EIM Electric Co., Ltd.
    Inventor: Taro Igisu
  • Patent number: 3999276
    Abstract: The disclosure relates to laying railroad rail. The rail is placed on the unspiked tie plates of a roadbed. One end is fixed in place. Starting at the fixed end, successive sections of the rail are if necessary subjected to heat exchange to bring them to a predetermined temperature, relates to the mean ambient temperature of the locality where the rail is being laid. The necessary heating or cooling may be performed using means moved along the rail from the fixed end toward the free end. In order that rail may be laid at said predetermined temperature and while stress free, vibrations are imparted to the rail whereby any stress tending to develop in the rail from expansion or contraction, because of the temperature change, is relieved. The stress free rail at the predetermined temperature is then spiked in place and rail anchors are applied.
    Type: Grant
    Filed: September 16, 1971
    Date of Patent: December 28, 1976
    Inventors: Robert M. Brown, Melvin E. Byrne, George H. Maxwell
  • Patent number: 3996654
    Abstract: An improved method of making syntatic modules is provided. The method includes the steps of forming a mold and adhering an expanded honeycomb material to the interior surface of the mold. The mold is then closed at one end and filled with hollow, plastic spheres from the other end. After the spheres are in place, a syntatic foam is pumped into the mold from the bottom, filling all spaces between the balls with the foam. The foam is then permitted to set after which the mold is removed, leaving the desired module. Thereafter, a skin may be applied to the module.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: December 14, 1976
    Assignee: Albany International Corporation
    Inventor: Arne I. Johnson