With Damper For Drive Patents (Class 198/767)
  • Patent number: 8770389
    Abstract: A vibrator (16) for the tray (10) of a vibratory conveyor (slip conveyor). The conveyor (16) includes bases 19 and 20 supported by resilient mountings (17, 18) on a stationary structure 37. Elongated resilient mountings (17, 18) extend between bases (19, 22), with the tray (10) supported on the base (23).
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: July 8, 2014
    Assignee: TNA Australia Pty Limited
    Inventors: Phillip Millard, Tim Moulsdale
  • Publication number: 20110240442
    Abstract: A differential impulse conveyor (10) includes a tray (12) laterally moveable in a forward direction at a first speed and in a backward direction at a second speed greater than the first speed, thereby moving goods along the tray. A plurality of legs (18, 20) support the tray during lateral movement, and a motor (30) powers a drive pulley (30). A driven pulley (36) is powered by the drive pulley, and a flexible member (34) interconnects the driven pulley and the drive pulley. At least the driven pulley has an eccentric pulley axis, thereby imparting lateral movement to the tray. A tension mechanism (38, 40) is provided to take up slack in the flexible member.
    Type: Application
    Filed: April 6, 2010
    Publication date: October 6, 2011
    Inventors: Paul Svejkovsky, Blake Svejkovsky
  • Patent number: 7426991
    Abstract: The tie bar supporting a feed tray (moving mass) is attached to the reaction mass using one leaf spring and one elastomeric spring. The elastomeric spring comprises first and second elastomeric pads which sandwich a portion of the tie bar to which the feed tray is attached. The elastomeric spring operates in shear with the spring rate of the elastomeric spring being adjusted by increasing/decreasing the compressive force exerted by the first and second elastomeric pads on the tie bar. The adjustable vibratory feeder has demonstrated greatly enhanced stability over other existing systems.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: September 23, 2008
    Inventors: Christopher Cedzo, David S. Bard, Gregory Nowak
  • Patent number: 7383942
    Abstract: An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for restricting, to a circumferential direction, a carrying direction in which an article is carried; a cam mechanism to which a driving force is input from an input shaft and that is for applying a vibration to the carry section by transmitting, to the carry section, an oscillating motion having at least a circumferential direction component in the circumferential direction, wherein the vibration causes the article to be carried in the circumferential direction; and a balancer for inhibiting a force that acts on the input shaft due to the cam mechanism applying the vibration to the carry section.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: June 10, 2008
    Assignee: Sankyo Seisakusho Co.
    Inventors: Heizaburo Kato, Toshinao Kato
  • Patent number: 7188722
    Abstract: An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to a vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for linearly restricting a carrying direction of an article to be carried; a cam mechanism for applying a vibration to the carry section by transmitting, to the carry section, a reciprocating linear motion having at least a carrying direction component in the carrying direction, wherein the vibration causes the article to be carried in the carrying direction; an enclosure section for supporting the cam mechanism; and a balancer for inhibiting a force that acts on the enclosure section due to the cam mechanism applying the vibration to the carry section.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: March 13, 2007
    Assignee: Sankyo Seisakusho Co.
    Inventors: Heizaburo Kato, Toshinao Kato
  • Patent number: 6868960
    Abstract: 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 transporting bed and which supports the article transporting bed in spaced relation relative to the supporting frame; and a drive assembly borne by the supporting frame and which provides an oscillating force having a plurality of components and which causes the article transporting bed to move reciprocally, and wherein the drive assembly amplifies the components of the oscillating force which are at a given angle relative to the resilient supports.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: March 22, 2005
    Assignee: Key Technology, Inc.
    Inventor: Peter T. Jones
  • Patent number: 5205395
    Abstract: 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 electromagnetic coil may be disposed to act in a vertical plane, imparting two-dimensional vibration to a generally horizontal vibratory surface. Apparatus vibrationally transports parts across a surface while concurrently orienting and sorting them. Reversibility of transport direction is also provided.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: April 27, 1993
    Assignee: Electro Scientific Industries, Inc.
    Inventors: David A. Bruno, Mark J. Brooks, Quang Nguyen, David M. Brooks
  • Patent number: 5074404
    Abstract: An isolator for use on a vibratory parts feeder incorporates a locating plate rotatable through three hundred sixty degrees in a horizontal plain to allow mounting adjustment and parts feeder micro alignment.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: December 24, 1991
    Assignee: FMC Corporation
    Inventors: William V. Gonda, David A. Brence, Paul I. Sleppy
  • Patent number: 4813532
    Abstract: A natural frequency vibratory conveyor which substantially improves upon the slow starting and stopping times and the power requirements associated with prior art natural systems is disclosed. The conveyor employs a drive member reciprocatively connected at one end to a drive motor assembly and resiliently connected at the opposite end to the conveyor platform. The conveyor can be operated at unusually high natural frequencies of vibration, thereby achieving high production rates, by employing opposed, adjustable springs to establish a high bidirectional spring rate between the conveyor platform and the base. Undesirable vertical components of vibration can thus be reduced without sacrificing productivity due to the high natural frequency.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: March 21, 1989
    Assignee: Allen Fruit Co., Inc.
    Inventor: Chester H. Harper
  • Patent number: 4768647
    Abstract: The invention relates to a vibrating conveyor in which the frame (1) and the trough (2) of the vibrating device are attached to each other by rigid bars (6). At the attachment points of the bars (6) to the trough (2) and to the frame (1) there are resilient components such as rubber discs (6a, 6b, 6c, 6d), axially fitted to the bars (6).
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: September 6, 1988
    Inventor: Erkki T. Lehtola
  • Patent number: 4424718
    Abstract: This invention pertains to unidirectional vibration apparatus using resilient shock absorber mounting means to change multidirectional vibration into unidirectional vibration forces. Three embodiments pertain to the use of pressurized air for driving an eccentric weight at a desired speed. One embodiment employs a turbine which is carried between and by resilient disk members secured to mounting rings. A roller is driven by pressurized air and the vibrating apparatus is carried within and by a resilient ring. A ball vibrator also uses a resilient ring as a shock absorber.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: January 10, 1984
    Inventor: Theodore S. Wadensten
  • Patent number: 4192419
    Abstract: A conveyor having a frame, a piston and cylinder unit operable by means of pressure fluid and secured in the frame, a spring assembly for actuation of the piston, a holder mounted on the frame and reciprocable by means of the piston and cylinder unit and carrying a conveyor path for receiving articles. The piston and cylinder unit has inlet and outlet valves and throttle means at the outlet of the outlet valve. A control rod connected to the piston of the piston and cylinder unit is adapted to allow control of the cross-sectional passage area of the throttle means. The control rod has a back-off section which merges into the full diameter of the rod at one end over a long distance and at the other end over a considerably shorter distance. The conveyor permits moving articles by a throwing movement also along a slightly upwardly inclining conveyor path.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: March 11, 1980
    Assignee: Henning Brodin
    Inventor: Nils H. Brodin
  • Patent number: 4121708
    Abstract: The specification discloses a spring for powering a vibratory feeder or conveyor made up of a first leaf spring and a second leaf spring in closely spaced relation to each other. The ends of each of the two leaf springs are rigidly clamped to corresponding ends of one another and a spacer is rigidly clamped between the springs at said ends. The center of one spring leaf is fixed to the conveyor, while the center of the other spring leaf is fixed to a vibratory motor.
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: October 24, 1978
    Inventors: William H. Benson, Thomas H. Falconer