Spiral Patents (Class 198/778)
  • Patent number: 7252189
    Abstract: A method and device for aligning orientation of laminated planer electrodes in laminated electronic parts when the parts are conveyed on a transport passage of a parts feeder. A magnetic field generation unit is disposed beside and outside of the parts feeder for applying magnetic field lines extending in horizontal or vertical direction. Orientation of the electrodes is in conformance with the direction of the magnetic field lines.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: August 7, 2007
    Assignee: TDK Corporation
    Inventor: Hiroshi Yagi
  • Patent number: 7240788
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: July 10, 2007
    Assignee: Carter Control Systems, Inc.
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 7228959
    Abstract: A modular plastic conveyor belt achieves a very tight turning radius. The belt is configured to permit the belt module rows to collapse using an over/under slotted module geometry, allowing for modules of one row to slip over/under modules of an adjacent row at the inside of a curve. This allows greater collapse and thus much tighter turning radii. A belt of two inch pitch can achieve an approximately 0.33 turning ratio, the ratio between turn center distance and width of belt.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: June 12, 2007
    Assignee: Habasit AG
    Inventor: James J. Harrison
  • Patent number: 7178662
    Abstract: An endless conveyor belt for an air conditioning plant, in which the conveyor belt extends helically along part of its length, comprising transverse rods (4) and lateral elements (3). The conveyor belt is characterized in that the lateral elements (3) are connected in pairs to only two rods (4), which are fixedly connected to said lateral elements (3) and form, with these, a link means (2), and adjoining link means (2) are articulated to each other by a coupling element (5) arranged therebetween and connected to neighboring rods (4) of the adjoining link means (2).
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: February 20, 2007
    Assignee: Frigoscandia AB
    Inventors: Lennart Olsson, Jonny Malmberg
  • Patent number: 7165670
    Abstract: Commercial production transport systems, mechanisms, and guides for food processing are configured so as to automate food transport. The system can direct food to travel serially over side-by-side predetermined travel lanes using one or more of a pick-up mechanism and/or router guide channels to pick-up and/or laterally translate the food product form the first travel lane to the second travel lane so that it travels greater than one, and typically a plurality, of revolutions about a tier or level in a vertically stacked food processing unit before moving to the next tier. Associated methods redirect and/or laterally translate food being transported in an automated food processing system.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: January 23, 2007
    Assignee: ConAgra Foods, Inc.
    Inventors: Sarid M. Shefet, John Michael Phillips, Frank Michael Horvath, Jr., Lawrence Alan Chandler, Richard Rodeheaver Hawkins, Larry Jones
  • Patent number: 7163099
    Abstract: Storage device with variable storage capacity. The storage device includes an input area, an output area, a continuous conveying element connecting the input area to the output area. The continuous conveying element is guided by guide elements in a looping manner from the input area to the output area, whereby the continuous conveying element defines a multi-layered storage area adapted to store products and a multi-layered return area adapted to be free of products. The multi-layered storage and return areas are arranged side by side and change in length depending on a state of fullness of the storage device while an overall length of the continuous conveying element remains generally constant. At least one storage layer of the multi-layered storage area and at least one storage layer of the multi-layered return area is arranged on a common horizontal plane. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: January 16, 2007
    Assignee: Hauni Maschinenbau AG
    Inventor: Thomas Mueller
  • Patent number: 7147098
    Abstract: Readily bendable and twistable rolling conveyor guides are provided. The guides include axle-positioning members that slidably engage channels of a structural support member. A plurality of axles carrying rotatable elements and spacers are disposed between the axle-positioning members. Certain embodiments include notches in the axle-positioning members. Certain other embodiments include unique cross-sections at the exterior of the channels. Advantageously, the assembled guides may be bent without causing distortion of the channels or interference between the axle-positioning members and the channels. In certain other embodiments, the support structures of the guides are constructed of flexible materials. The guides are thus readily twistable about longitudinal axes thereof.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: December 12, 2006
    Assignee: Valu Engineering, Inc.
    Inventor: Stuart J. Ledingham
  • Patent number: 7143889
    Abstract: A variable-capacity store (1) for objects (2), wherein an endless powered flexible conveyor belt (12) defines a conveying branch (6) for transferring a mass of objects (2) from an input station (S1) to an output station (S2), and defines a return branch (9) extending from the output station (S2) to the input station (S1); the conveying branch (6) is located entirely above a horizontal storage plane (13), and the store (1) is connected to at least one vertical conveyor (14) located at the input station (S1) and/or the output station (S2) to lift/lower the mass of objects (2) to/from the horizontal storage plane (13), and which is at least partly defined by an up/down branch (16) of the flexible belt (12).
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: December 5, 2006
    Assignee: G.D. Societa' per Azioni
    Inventor: Mario Spatafora
  • Patent number: 7086523
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: August 8, 2006
    Assignee: Carter Control System, Inc.
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 7070043
    Abstract: A modular plastic conveyor belt having an A-shaped edge portion in belt edge modules along each belt row for tight collapse of the belt at the inside of a turn. The A-shaped region comprises two alternating series of laterally spaced links, each extending from opposite ends of the edge module. Each of the first series of links forms an acute angle measured clockwise from the direction of belt travel. Each of the second series of links forms an acute angle measured counterclockwise from the direction of belt travel. The angles decrease monotonically with distance inward of the first side of the belt edge. Laterally extending webs join the ends of consecutive converging links along an end of the module. The lateral extent of the webs increases monotonically inward from a first side edge of the belt. A cross bars extends between each pair of web-joined links.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: July 4, 2006
    Assignee: Laitram, L.L.C.
    Inventors: Gilbert J. MacLachlan, R. Scott Dailey, Richard M. Klein, Errol P. Knott
  • Patent number: 7037048
    Abstract: A vibratory conveyor for transporting an object includes a deck defining a conveying surface for supporting the object, the deck having an inner edge and an outer edge. A housing has an inner wall coupled to the inner edge of the deck and an outer wall coupled to the outer edge of the deck, wherein an interior of the housing defines a conveyor chamber. An inlet air plenum is provided in fluid communication with a plurality of air distribution chambers positioned inside the conveyor chamber. A plurality of apertures is formed in the plurality of air distribution chambers, wherein the apertures are arranged in an air distribution pattern. An exhaust outlet fluidly communicates between the conveyor chamber and an air vacuum source. The conveyor may a catch floor disposed in a central chamber for receiving debris from an air stream. The vibratory force advances the debris to a discharge opening formed in the catch floor.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 2, 2006
    Assignee: General Kinematics Corporation
    Inventors: Robert Markowski, Kurt Christopherson, Richard B. Kraus
  • Patent number: 7011205
    Abstract: A variable-capacity store (1) for objects (2), wherein an endless conveyor (8) defines a conveying branch (11) for conveying a mass of elongated elements (2), and a return branch (14), the conveying branch and the return branch respectively forming a first and at least a second coil (51, 57), each extending about two respective guide drums (26, 27) (43, 44) movable transversely with respect to each other to adjust the length of the respective coil (51) (57); and wherein the conveying surface (10) positioned on edge with respect to the guide drums (26, 27) of the first coil (51), and positioned flat against the guide drums (43, 44) of the second coil (57).
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 14, 2006
    Assignee: G.D Societa″ per Azioni
    Inventors: Fiorenzo Draghetti, Roberto Osti, Verter Cesari
  • Patent number: 7004307
    Abstract: Commercial production transport systems, mechanisms, and guides for food processing are configured so as to automate food transport. The system can direct food to travel serially over side-by-side predetermined travel lanes using one or more of a pick-up mechanism and/or router guide channels to pick-up and/or laterally translate the food product form the first travel lane to the second travel lane so that it travels greater than one, and typically a plurality, of revolutions about a tier or level in a vertically stacked food processing unit before moving to the next tier. Associated methods redirect and/or laterally translate food being transported in an automated food processing system.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: February 28, 2006
    Assignee: ConAgra Foods, Inc.
    Inventors: Sarid M. Shefet, John Michael Phillips, Frank Michael Horvath, Jr., Lawrence Alan Chandler, Richard Rodeheaver Hawkins, Larry Jones
  • Patent number: 6935485
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 30, 2005
    Assignee: Carter Control Systems, Inc.
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6889821
    Abstract: An apparatus (10) is disclosed which incorporates a spiral slide (14) to orient corn dogs (12) in a single direction as they slide down the spiral slide. The oriented corn dogs (12) enter an inlet (66) of a first conveyor (16) as they leave the spiral slide. The first conveyor moves the corn dogs (12) along a direction (52) toward a second conveyor (18). The first and second conveyors are pivotally mounted at their distant ends so that their facing ends (64,70) can be aligned to allow a corn dog in one slot (50,52) of the first conveyor to be conveyed to any one of the slots (92-98) in the second conveyor (18) to group the corn dogs in sets for packaging.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: May 10, 2005
    Inventor: Glenn E. Walser
  • Patent number: 6840371
    Abstract: A modular belt link which includes a link base having at least one hinge barrel for connecting the link to adjacent links. A side guard is fixed to the link base, and defines a non-planar wall having a bottom and top joined by sides. The wall is twisted relative to an axis of rotation extending through said top and bottom.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: January 11, 2005
    Assignee: Rexnord Industries, Inc.
    Inventors: Kevin S. Hansen, Paul M. Koeferl
  • Publication number: 20040262129
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Application
    Filed: July 26, 2004
    Publication date: December 30, 2004
    Inventors: Donald F. Belz, Duane L. Glass
  • Publication number: 20040216986
    Abstract: A variable-capacity store (1; 50) for elongated elements (2), in particular tobacco articles, wherein an endless conveyor (8) has a conveying branch (9) for transferring the elongated elements (2) from an input station (3) to an output station (4) of the store (1; 50), and a return branch (10) extending from the output station (4) to the input station (3); each branch (9; 10) is coiled about a relative pair (11; 12) of transmission members, (13, 15; 14, 15); and the two pairs (11; 12) of transmission members (13, 15) (14, 15) share a transmission member (15) movable transversely in controlled manner.
    Type: Application
    Filed: June 21, 2004
    Publication date: November 4, 2004
    Inventor: Mario Spatafora
  • Patent number: 6796418
    Abstract: A helical or “spiral” conveyor belt system is retrofitted with further belt supports, added between existing belt supports, when needed for heavier loading, preferably without removing the belt from the spiral support structure. The additional support apparatus includes a series of snap-on plastic brackets, to be snapped over the cantilevered bars that extend horizontally inwardly at intervals to support the belt. These brackets form channels within which a set of metal rail members are held, the rail members being in sections securable together around the helical path. A U-shaped wear strip, preferably continuous, is placed down over the metal rails after assembly. This rail addition can be accomplished without removal of the belt, which can be lifted in place sufficiently to assemble the intermediate support components.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: September 28, 2004
    Assignee: KVP Corporation
    Inventors: James J. Harrison, William J. Werner
  • Patent number: 6793068
    Abstract: Commercial production transport systems, mechanisms, and guides for food processing are configured so as to automate food transport. The system can direct food to travel serially over side-by-side predetermined travel lanes using one or more of a pick-up mechanism and/or router guide channels to pick-up and/or laterally translate the food product form the first travel lane to the second travel lane so that it travels greater than one, and typically a plurality, of revolutions about a tier or level in a vertically stacked food processing unit before moving to the next tier. Associated methods redirect and/or laterally translate food being transported in an automated food processing system.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: September 21, 2004
    Assignee: ConAgra Foods, Inc.
    Inventors: Sarid M. Shefet, John Michael Phillips, Frank Michael Horvath, Jr., Lawrence Alan Chandler, Richard Rodeheaver Hawkins, Larry Jones
  • Publication number: 20040168889
    Abstract: A vibratory conveyor for transporting an object includes a deck defining a conveying surface for supporting the object, the deck having an inner edge and an outer edge. A housing has an inner wall coupled to the inner edge of the deck and an outer wall coupled to the outer edge of the deck, wherein an interior of the housing defines a conveyor chamber. An inlet air plenum is provided in fluid communication with a plurality of air distribution chambers positioned inside the conveyor chamber. A plurality of apertures is formed in the plurality of air distribution chambers, wherein the apertures are arranged in an air distribution pattern. An exhaust outlet fluidly communicates between the conveyor chamber and an air vacuum source. The conveyor may a catch floor disposed in a central chamber for receiving debris from an air stream. The vibratory force advances the debris to a discharge opening formed in the catch floor.
    Type: Application
    Filed: December 23, 2003
    Publication date: September 2, 2004
    Inventors: Robert Markowski, Kurt Christopherson, Richard B. Kraus
  • Publication number: 20040129537
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Application
    Filed: October 6, 2003
    Publication date: July 8, 2004
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6725997
    Abstract: A variable-capacity store for objects, wherein an endless conveyor defines a conveying branch, for conveying a mass of objects, and a return branch, which respectively form a first and a second spiral of given lengths, each of which coils about a respective fixed first drum and a respective second drum movable to and from the relative first drum; and wherein the second drums are located on the same side with respect to the relative first drums, and are connected to each other by a transmission powered by a single reversible motor to equally and oppositely adjust the distances between the second drums and the relative first drums.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 27, 2004
    Assignee: G.D Societa' per Azioni
    Inventor: Fiorenzo Draghetti
  • Patent number: 6695128
    Abstract: A modular plastic conveyor belt has upright support members at ends of each row and, in some cases, at intermediate positions, to support a conveyor tier above such that the belt is self-supporting in a helical stack in a spiral conveyor system. Modular rows can be made up of one or more modules, and the modules can be in various different configurations. The support members or spacer frames are either integral or securely connected to heavier link ends in end members of the modules. Preferably there are teeth and notches in the support frames and the bottom of the end member of the tier above, to hold the tiers of the helical stack in registry, preventing sliding and misalignment.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: February 24, 2004
    Assignee: KVP Falcon Plastic Belting, Inc.
    Inventors: Eric K. Palmaer, John Kucharski, William J. Bickel, Jr.
  • Publication number: 20040020749
    Abstract: An improved method of transporting materials or products for chilling or freezing comprising the use of a multi-tiered, spiral path conveyor belt capable of tight radial turning in a restricted area to immerse the materials or products into a tank containing a cooling fluid and circulating the cooling fluid past the material or product is presented. The materials or products may or may not undergo chemical preparation prior to immersion, depending on the type of materials or products to be chilled or frozen. The cooling fluid, which can be food-grade solute, is circulated past the material at a substantially constant predetermined velocity and temperature to freeze the material or product. The cooling fluid is preferably between −20 degrees centigrade and −30 degrees centigrade, and the velocity of the cooling fluid past the material is about 35 liters per minute per foot of cooling fluid through an area not greater than about 24 inches wide and 48 inches deep.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 5, 2004
    Inventors: Brian Wood, Robin Roselli, Chris Wilson
  • Publication number: 20040020748
    Abstract: A self-cleaning oscillating conveyor includes a vertical tube and a conveyor channel that is helically wound upwardly around the vertical tube with a corresponding electromagnetic oscillating unit and a casing tube, which surrounds the exterior of the conveyor channel. The chamber between the vertical tube and the casing tube can be sprayed by several nozzles, which penetrate the interior of the vertical tube, or the exterior of the casing tube, with a liquid detergent, sprayed under pressure and using a delivery pump. The cleaning liquid runs onto the collection plate and over the rim thereof into a collection channel having a drain. In a preferred embodiment, semi-tubes, or half-tubes, are longitudinally mounted onto the casing tube in a sealed manner and a row of nozzles penetrates the casing tube from the chamber between the interior of the semi-tubes and the casing tube towards the interior.
    Type: Application
    Filed: May 7, 2003
    Publication date: February 5, 2004
    Inventor: Paul Kramer
  • Publication number: 20040011627
    Abstract: A modular plastic conveyor belt has upright support members at ends of each row and, in some cases, at intermediate positions, to support a conveyor tier above such that the belt is self-supporting in a helical stack in a spiral conveyor system. Modular rows can be made up of one or more modules, and the modules can be in various different configurations. The support members or spacer frames are either integral or securely connected to heavier link ends in end members of the modules. Preferably there are teeth and notches in the support frames and the bottom of the end member of the tier above, to hold the tiers of the helical stack in registry, preventing sliding and misalignment.
    Type: Application
    Filed: July 18, 2002
    Publication date: January 22, 2004
    Inventors: Eric K. Palmaer, John Kucharski, William J. Bickel
  • Patent number: 6666322
    Abstract: Packets (2) transferred from a packing machine to an overwrapping machine pass through an in-line storage unit (1) of variable capacity internally of which they are directed along a path (P) between a loading station (3) and an unloading station (4); the unit (1) includes a succession of conveying members (19) each describing a closed loop path (P1) and set in motion by a corresponding motor (30), and chutes (44) by which the conveying members (19) are linked in series.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: December 23, 2003
    Assignee: G. D S.p.A.
    Inventors: Andrea Biondi, Fiorenzo Draghetti
  • Patent number: 6659268
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: December 9, 2003
    Assignee: Carter Control Systems, Inc.
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6651802
    Abstract: A method and apparatus are provided to manually discharge bottles from a tray of bottles onto a sloped surface at the bottom of which gravity fed individual bottles are captured at the top receiving edge of a parallel sloped multi-pocketed rotatable indexing wheel and sequentially: (a.) discharged tangentially at the bottom edge of said indexing wheel in a single row, (b.) corrected to a vertical axis, and (c.) exited onto adjoining equipment for further operations.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: November 25, 2003
    Inventor: Richard Francis Hurst
  • Publication number: 20030173191
    Abstract: There is provided a conveyor system for rod-like articles comprising a conveyor means (12), preferably forming a spiral (14) path round and between two cylindrical drums (18, 20) whereby the conveyor has a first and second elongate conveyor length extending towards and away from at least one of the drums (18) and having a transmission length extending therebetween and about an axis of said drum for changing the direction of the conveyor about this axis, whereby the first elongate length is at least partially displaced axially with respect to the second elongate length but wherein the transmission length is maintained in a first plane about the drum member, this plane being perpendicular to the drum axis. There is also provided a reservoir system comprising a conveyor arrangement of this type.
    Type: Application
    Filed: March 12, 2003
    Publication date: September 18, 2003
    Inventors: Mike Hammock, Anthony R. Brown, Alan K. Richardson, Walter Carascon, Gary T. Walford
  • Patent number: 6578704
    Abstract: A spiral conveyor with a belt having rollers at the inside edge. The spiral conveyor includes a rotating tower with a conveyor belt following a helical path around the tower. Rollers extending outward from the inner side edge of the belt have an axis of rotation generally parallel to the helical path. The rollers engage the outer surface of the tower in high-friction rubbing contact in the circumferential direction, but in low friction rolling contact in the vertical direction to provide a low-tension spiral conveyor system. The belt is preferably a modular conveyor belt constructed of a series of rows of belt modules connected together at hinge joints.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: June 17, 2003
    Assignee: The Laitran Corporation
    Inventor: Gilbert J. MacLachlan
  • Patent number: 6564930
    Abstract: An endless conveyor has a driven drum that rotates about its axis. A flexible band forms a helix by being wrapped around the drum. A fixed helical support supports the outer edge of the band. A secondary conveyor moves an endless series of stacking blocks. The stacking blocks are in frictional engagement with the drum to transfer driving forces from the drum to the blocks. The stacking blocks also keep the turns of the flexible band spaced apart by a distance equal to the height of the blocks. The secondary conveyor includes guides at both the top and bottom of the drum to guide the stacking blocks into and out of engagement with the inner edge of the flexible band. The stacking blocks are in slip-free and backlash free engagement with the inner edge of the flexible band, and the frictional engagement between the stacking blocks and the drum permits the stacking blocks to be displaced both axially and circumferentially on the surface of the drum.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: May 20, 2003
    Assignee: Scanima A/S
    Inventors: Holger Colding-Kristensen, Helge Bjoern
  • Patent number: 6536585
    Abstract: A conveyor for transporting parcel goods and the like over a track comprises a frame and an endless conveyor belt comprising a transport portion and a return portion, which is supported by the frame and which is driven by a driving device. The conveyor belt is provided with a number of elongated (in transverse direction), substantially rigid supporting elements, which are directly or indirectly interconnected and which can pivot relative to each other at least about an axis parallel to the plane of transport and perpendicularly to the direction of transport. Movable cover flaps projecting from the supporting elements in the longitudinal direction of the conveyor are formed on at least a number of supporting elements, wherein the length dimension of the flaps is such that each is capable of covering at least one gap to an adjacent supporting element.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: March 25, 2003
    Inventors: Thomas Cornelis Maria Ammeraal, Wouter Balk
  • Patent number: 6523677
    Abstract: A dual helical conveyor system, is disclosed having a conveyor belt adapted to move in a first direction along a first helical path and thereafter in a second direction generally opposite the first direction along a second helical path generally concentric with said first helical path. The conveyor belt is further movable through a cross-over section along a cross-over path which connects the first and second helical paths, and a conveyor belt drive mechanism is provided in the cross-over section to frictionally drive the conveyor belt along the cross-over path and between the first and second helical paths. The conveyor belt is driven by friction/slip drive mechanism along the first and second helical paths. The conveyor in the first and second paths may be a single continuous belt or it may be alternatively be comprised of two separate and independent belts.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: February 25, 2003
    Assignee: Tarpaulin.COM, Inc.
    Inventors: Ronald J. DeGennaro, Jerome J. Finazzo, Jr., Paul Priebe, Thomas Wedell
  • Patent number: 6505730
    Abstract: A distribution arrangement for packages has a first conveying device and one or more producing groups transferring packages onto the first conveying device. Target groups receive the packages from the first conveying device for further transport. The first conveying device forms a first closed loop arrangement and extends in at least two planes arranged above each other. At least one of the producing groups has at least two of the target groups correlated therewith, and the at least one of the producing groups and the at least two of the target groups correlated therewith are serially arranged along the first closed loop arrangement.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: January 14, 2003
    Assignee: Grapha-Holding AG
    Inventor: Heinz Linder
  • Publication number: 20020195320
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Application
    Filed: March 19, 2002
    Publication date: December 26, 2002
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6484379
    Abstract: Plastic conveyor belts made up of modules interconnected by transverse rods and capable of straight or radius travel are adjusted as to minimum radius the belt can traverse by restricting collapsibility at the inner edge of the belt. This can be accomplished using shims in the slotted apertures of link ends, preventing full rod travel in those apertures, at each row or at alternating or selected rows of the belt; or shims otherwise placed in the belt to prevent full collapse; or by using different modules in certain rows, with less collapsibility; or by substituting different edge modules in belts of multiple modules per row. In this way, a basic radius conveyor belt can be defined, with a relatively tight minimum radius, and then can be modified so as to be custom-fitted to spiral conveyor or other belt systems having specific curve radii which are larger than the radius of the basic belt.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 26, 2002
    Assignee: KVP Falcon Plastic Belting, Inc.
    Inventor: Eric K. Palmaer
  • Patent number: 6422380
    Abstract: In the store at the inlet of the transport sector (11) is situated the first drive mechanism (21) of the conveyor (8) which is controlled by and connected to a fullness sensor (22) assembled in the input station (16) via a control unit, and at exit of the transport sector (11) is situated a second drive mechanism (23) of the conveyor (8) which is controlled by and connected to a fullness sensor (24) assembled in the output station (17) via a control unit, while the transport sector (11) is defined by two, active and passive, identical support guide mechanisms (10, 15) for the conveyor (8), consist of independent disc modules (6) rotary assembled on the axes (5, 14), moreover the return sector (9) consists of two, active and passive, identical support guide mechanisms (7, 13) of the conveyor (8), that consist also of independent disc modules (6) rotary assembled on the axes (4, 12), while the axis (5) of the active support guide mechanism (10) in the transport sector (11) is fixed to the axis (4) of the active
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: July 23, 2002
    Assignee: International Tobacco Machinery Poland LTD
    Inventor: Leszek Sikora
  • Patent number: 6398014
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: June 4, 2002
    Assignee: Carter Control Systems, Inc.
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6394261
    Abstract: A variable counterweighted take-up assembly for an endless conveyor system is disclosed, wherein the endless conveyor system has a frame, an endless conveyor belt supported by the frame and is adapted to traverse a predetermined endless path. A take-up section of the conveyor system receives and stores excess portions of the conveyor belt so as to permit operational fluctuations in the length of the belt. The portion of accumulated excess belt is divided into at least two adjacent sections, a first fixed section wherein the length and weight of the belt therein is substantially constant, and a second variable section wherein the length and weight of the belt therein is permitted to vary. The first and second sections are opposed to each other in counterbalance relation in a manner to affect belt tension throughout the conveyor system.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: May 28, 2002
    Assignee: Tarpaulin.Com, Inc.
    Inventor: Ronald DeGennaro
  • Patent number: 6364088
    Abstract: A storage arrangement has a channel for accommodating chip-like electronic components in a predefined order and alignment. Simplified operation is achieved in that the channel between a first and a second end of the storage arrangement is led at least largely along a helical line. A device having such a storage arrangement optionally includes a first sub-assembly for preferably filling the storage arrangement with components and a second sub-assembly for preferably unloading the components, or a combination of the two.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: April 2, 2002
    Assignee: U. S. Philips Corporation
    Inventors: Engelbert Steffens, Jörg Martens
  • Patent number: 6336551
    Abstract: A conveyor for conveying piece goods and the like through a helical path in a vertical direction has a frame and an endless conveyor belt supported by the frame having a conveying part guided in the helical path and a return path. The conveyor belt includes substantially rigid slats movably coupled near their axis and having an upper transport face. The slats are relatively pivotable around both of two axes. The frame has a helical support face for slidably supporting the slats in the conveying part and a radially directed guide face for guiding these slats substantially radially in the conveying part. At least a number of slats are provided with at least a guide roller rotatable about a substantially vertical axis of rotation and adapted to roll along the radially directed guide face.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: January 8, 2002
    Inventor: Wouter Balk
  • Patent number: 6298971
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: October 9, 2001
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6237750
    Abstract: A conveyor belt (1) is composed of a number of identical links in the formation of an endless belt, where each link comprises at least one axle (3) arranged transversely in relation to the direction of travel (2), and an outer link (4) at each side in engagement with the axle. Each outer link comprises an elongated hole for the adjacent link's axle, so that the belt can be driven in a curve in the plane of the belt. Each outer link has at least one securing hole for a transverse axle, where the coupling-together between the axle (3 and the outer link (4) is effected by a separable snap-lock. The outer link is moulded as a one-piece unit in a suitable plastic material, preferably by injection moulding. The outer links (4) can also be configured in a larger version for the construction of conveyor belts for operation in self-stacking helical systems.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: May 29, 2001
    Assignees: Uni-Chains International, Ashworth Bros., Inc.
    Inventors: Poul Erik Damkjaer, Jack Ronald Raum, Andrew Clyde Smith
  • Patent number: 6206169
    Abstract: A supply line for supplying parallelepiped products to a user machine, whereby the products are fed to the user machine by a conveyor which feeds the products along a horizontal path and through a transfer station where a transfer unit removes the products off the conveyor and feeds the products to an input-output of a vertical store in which the products are stored contacting one another; the transfer unit being reversible for also removing the products from the input-output of the store and feeding the products onto the conveyor.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: March 27, 2001
    Assignee: G. D Societa′per Azioni
    Inventor: Mario Spatafora
  • Patent number: 6199677
    Abstract: A spiral conveyor with automatic flow control includes a plurality of curved segments connected to form a spiral for the flow by gravity of articles from an upper level to a lower level. Each of the segments includes freely rotating skate wheels forming a conveying surface and a controlled, powered cylindrical roller. A sensor mounted in each segment senses the presence of an article in the segment. A controller receives the signals from the sensors and activates the associated roller for transport mode to assist articles through the conveyor if the path is clear, or if the downstream portion of the conveyor is blocked, to reverse the roller for accumulate mode to hold articles in the segment until the path is cleared.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: March 13, 2001
    Assignee: Carter Control Systems, Inc.
    Inventors: Donald F. Belz, Duane L. Glass
  • Patent number: 6098792
    Abstract: A conveyor belt comprises a plurality of interconnected elements (1, 2), which are successively arranged in the longitudinal direction of the conveyor belt. The elements are movable relative to each other at least about axes (3) which extend transversely of the longitudinal direction of the conveyor belt and in parallel with the plane of the conveyor belt. The elements (1, 2) are alternatively of a first type and a second type. Each element (1) of the first type has the form of an inversely U-shaped beam extended transversely of the longitudinal direction of the conveyor belt. This beam has flanges (6) and a web (7) interconnecting the flanges as well as a plurality of openings (8), spaced apart along the beam, in each border area between the web (7) and the respective flanges (6). Each element (2) of the second type has lugs (5), which are locked against complete withdrawal from the neighboring openings (8) in each of the two adjoining elements (1) of the first type.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: August 8, 2000
    Assignee: Frigoscandia Equipment AB
    Inventor: Lennart Olsson
  • Patent number: 6092641
    Abstract: A method and device for vertically conveying packets of cigarettes, whereby packets of cigarettes, fed successively to an input of a guide, are transferred to an output of the guide by means of a screw lifting member rotating about a respective axis; the output being at a different level from that of the input, and the guide extending by a given angle about the axis of the screw lifting member.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: July 25, 2000
    Assignee: G.D Societa' Per Azioni
    Inventor: Fiorenzo Draghetti
  • Patent number: 6065463
    Abstract: A forced convective track oven comprises a track conveyor including first and second cylindrical spirals, the first cylindrical spiral for conveying bakery trays and dough products upwardly and the second spiral spiral portion for conveying bakery trays and dough products downwardly, thereby minimizing the number of changes of direction of the bakery trays as they travel along the track conveyor. A plurality of burners discharge heated air through discharge tubes and discharge nozzles into engagement with bakery trays carried by the track conveyor.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: May 23, 2000
    Assignee: Sasib Bakery North America, Inc.
    Inventor: Alan Martin