Patents Assigned to Laitram, L.L.C.
  • Patent number: 11827454
    Abstract: A cleanable conveyor frame and a method for making a cleanable frame having a simplified frame design. Infeed and outfeed assemblies are movable between operating and cleaning positions. An outfeed assembly includes a drive for a conveyor belt and a position limiter-scraper assembly. The position limiter-scraper assembly comprises a roller extending between two connecting plates mounted to outfeed mounting plates, a scraper assembly having a scraper blade mounted to a mounting bar extending between the two connecting plates and a leaf spring extending rearward from the mounting bar for biasing the scraper blade into contact with the conveyor belt.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: November 28, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Michael Hendrik DeGroot, Jeff Batchelder, Gerko Hulshof, David A. Kokx, James R. Honeycutt, Jr.
  • Patent number: 11807473
    Abstract: A conveying system employs independently controlled flights. The flights are controlled separately from a conveying surface using a linear transport system. The linear transport system allow the position of the flights to be controlled based on a parameter, such as the length of a conveyed object. The flights are pivotally mounted to a mover of the linear transport system and can pivot relative to the conveying surface to allow the flights to fit in a space between an end of carryway and a receptacle.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: November 7, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Matthew L. Fourney, Robert K. Paquin, James L. Brun, Christopher B. Spicer, David L. Marsh
  • Patent number: 11807461
    Abstract: Belt edge modules for constructing modular conveyor belts with sturdy outer edges. The edge modules have thickened outer edge regions in module edge portions that are difficult to snip or break off to access hinge rods.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: November 7, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Kevin W. Guernsey, John E. Wenzel, David Aaron van Schalkwijk, Matthew Vulpetti
  • Patent number: 11802608
    Abstract: A flexible thermoplastic conveyor belt constructed of one or more belt segments having corrugated sidewalls. The one or more segments are joined end to end at one or more joints. The ends of the sidewalls at or near the joints are fastened together by fasteners to form a continuous sidewall along the length of the belt. The fasteners are toolless fasteners requiring no tools; they can be fastened and unfastened by hand alone.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: October 31, 2023
    Assignee: Laitram, L.L.C.
    Inventors: John Stong, Gabriel Nazar, Gerko Hulshof, Martin Sprenkeler, Michael Hendrik DeGroot, Jeff Batchelder, James R. Honeycutt, Jr.
  • Patent number: 11795005
    Abstract: A hygienic, cleanable conveyor roller for use in a conveyor includes a segmented hub, a plurality of spokes and a rim for contacting a conveyor belt. The segmented hub comprises a plurality of arcuate segments in different axial planes connected to each other. The conveyor roller is mounted upon and rotatable about a mounting shaft that may axially constrain the roller. During a single revolution of the conveyor roller about the mounting shaft, all surfaces of both the conveyor roller and the mounting shaft are fully exposed, allowing the surfaces to be cleaned in place, without requiring removal of the conveyor roller from the mounting shaft.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: October 24, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Michael Hendrik DeGroot, Paul A. Marsman
  • Patent number: 11787639
    Abstract: A conveyor employs an assembly at a drive end having a position limiter assembly configured to accommodate flights in a conveyor belt while ensuring proper engagement between the conveyor belt and a drive. The end assembly includes opposing end plates, a drive extending between the end plates and a position limiter assembly extending between the end plates below the drive for ensuring proper engagement of a conveyor belt with the drive. The position limiter comprises a series of spaced apart rollers mounted to and spaced from a mounting bar extending between the end plates. Roller mounting arms connect the rollers to the mounting bars.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: October 17, 2023
    Assignee: Laitram L.L.C.
    Inventors: Michael Hendrik Degroot, Drew Downer, Gerko Hulshof, Jake A. Mohan
  • Patent number: 11772897
    Abstract: A plastic modular conveyor belt constructed of belt modules with wear pads. The belt is supported in the carryway of a conveyor atop linear wearstrips along which the belt's wear pads slide as the belt advances.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 3, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Kevin W. Guernsey, David W. Bogle, Catherine M. Bishop
  • Patent number: 11772896
    Abstract: A modular noseroller assembly for transitioning a conveyor belt at an end of a carryway comprises a plurality of roller-mounting modules connected to a spacer element to form a noseroller assembly that can be installed in a conveyor frame. The roller-mounting modules mount freely-rotating rollers on an axle extending through the plurality of roller-mounting modules. The configuration and size of the noseroller assembly can be easily modified depending on a particular application.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: October 3, 2023
    Assignee: Laitram, L.L.C.
    Inventors: David Aaron van Schalkwijk, John E. Wenzel, Sijia Chen, R. Scott Dailey, Richard M. Klein
  • Patent number: 11745949
    Abstract: Conveyor belt modules having rodless hook hinges and modular conveyor belts constructed of those modules. Hooks on opposite ends of belt modules hook into complementary hooks on adjacent modules to interconnect the modules at hinge joints into an endless belt. The geometry of the modules enables them to be manufactured by extrusion.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: September 5, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Bryant G. Ragan, John de St. Germain, Adam E. Bannerman
  • Patent number: 11724884
    Abstract: A slat conveyor belt includes connected drive modules that can be easily disassembled and assembled. Each drive module comprises a slat portion connected to a drive portion forming a drive chain. A conveyor frame for the conveyor belt includes a dust cover for the drive chain and a separator for selectively separating a slat portion from an associated drive portion. A magazine automatically removes and stores separated slats.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: August 15, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Bryant G. Ragan, David W. Bogle, John de St. Germain
  • Patent number: 11708221
    Abstract: A spiral conveyor having a self-stacking conveyor belt positively driven on a helical path up or down a drive drum. Stacker supports at opposite sides of the belt support the tiers above. Locking structure on the outer stacker supports interlock consecutive tiers. Drive members on the drive drum have a belt entrance segment and a positive-drive segment. The positive-drive segment has ridges that engage the inner side of the belt without slip. The entrance segment provides a smooth reduction in drum diameter without drive ridges to multiple belt tiers entering the helical path.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: July 25, 2023
    Assignee: Laitram, L.L.C.
    Inventor: Casper Fedde Talsma
  • Patent number: 11691825
    Abstract: System and methods for estimating the number of packages in a measurement zone to gauge package flow. A linear array of distance-measuring sensors measures the height profile of a mass of packages conveyed past. The profile is differentiated, and steps in the differentiated profile are counted to detect package edges and to produce an estimate of the number of packages in the measurement zone. The estimate can be used to adjust the speed of the conveyor to provide a constant package flow.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: July 4, 2023
    Assignee: Laitram, L.L.C.
    Inventors: William S. Murray, Jeremiah E. Oertling
  • Patent number: 11632961
    Abstract: A separation and singulation system for presenting shrimps or other product individually to a processor. The separation and singulation system includes a divider pan that separates a layer of shrimp into several lanes, a shaker pan that receives the lanes of shrimp and agitates them to separate clumps of shrimp and a flume for providing further singulation and acceleration of the shrimp. The singulated, separated shrimps are then sent to a processor.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: April 25, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Christopher G. Greve, Lars Vedsted, Charles L. Borrello, Robert S. Lapeyre, Charles J. Ledet
  • Patent number: 11632962
    Abstract: A separation and singulation system for presenting shrimps or other product individually to a processor. The separation and singulation system includes a divider pan that separates a layer of shrimp into several lanes, a shaker pan that receives the lanes of shrimp and agitates them to separate clumps of shrimp and a flume for providing further singulation and acceleration of the shrimp. The singulated, separated shrimps are then sent to a processor.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: April 25, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Christopher G. Greve, Lars Vedsted, Charles L. Borrello, Robert S. Lapeyre, Charles J. Ledet
  • Patent number: 11576419
    Abstract: Apparatus and methods for bulk processing items on a conveyor belt using an angled axial fan that extends obliquely into a processing chamber and includes a curved back wall forming an air flow chamber. The angled axial fan enhances air flow around a product being processed on the conveyor belt. A heater employs shrouds and a series of baffle plates held together using a connecting pin to heat circulated air in a low-pressure area below the conveyor belt. Baffles in an upper chamber mix and direct heated, circulated air over the conveyed product.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 14, 2023
    Assignee: Laitram, L.L.C.
    Inventors: Christopher G. Greve, Robert S. Lapeyre, Kyle J. Sedlacek
  • Patent number: 11565893
    Abstract: A tray conveyor comprising ice-coated magnetic trays driven by a linear-motor stator along a rail track. The ice coating is applied to the trays to provide a product-bearing ice surface. After the product is processed and transferred off the tray, the top layer of the contaminated ice coating is removed and the tray with the remaining ice coating reused.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: January 31, 2023
    Assignee: Laitram, L.L.C.
    Inventor: Bryant G. Ragan
  • Patent number: 11548734
    Abstract: A grid sorter for discharging articles received from many inputs to selected discharge destinations. The grid sorter comprises a rectangular grid of parallel conveyor lines. Each line has a series of bidirectional conveyors fed articles by infeed conveyors at each end of the line. Omnidirectional-roller sorters, at the intersections of the conveyor lines, can pass articles received from one line in multiple directions: along that same line; in either direction to an intersecting line; or obliquely to a selected discharge between lines. Omnidirectional rollers in the omnidirectional-roller sorters are controlled by a controller to push articles in selected directions to predetermined discharge destinations.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 10, 2023
    Assignee: Laitram, L.L.C.
    Inventor: Matthew L. Fourney
  • Patent number: 11505409
    Abstract: A two-axis modular belt comprising two orthogonal belt loops intersecting at a union on a carryway. The belt is constructed of rectangular belt modules arranged in rows and columns. The modules are interconnected by hinge elements that allow columns of an advancing belt loop to translate relative to the rows of the other stationary belt loop.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 22, 2022
    Assignee: Laitram, L.L.C.
    Inventor: Bryant G. Ragan
  • Patent number: 11485582
    Abstract: A multi-angle sorter having an omnidirectionally endless conveyor belt surrounding a polygonal frame to form a belt-frame assembly supported atop a roller drive including multiple pairs of diagonally opposite roller sets. Each pair of roller sets is arranged to drive the belt in a corresponding angular direction. A grid sorter comprises a grid of intersecting conveyor lines composed of multi-angle sorters at the intersections in line with conventional bidirectional conveyors.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 1, 2022
    Assignee: Laitram, L.L.C.
    Inventors: Bryant G. Ragan, Matthew L. Fourney
  • Patent number: RE49707
    Abstract: In one embodiment, a conveyor system includes a conveyor belt having a plurality of conveyor belt rollers configured to divert objects on the conveyor belt, and a drive mechanism that engages the conveyor belt rollers, the drive mechanism being configured to drive the conveyor belt rollers, the drive mechanism being adjustable such that the conveyor belt rollers can be selectively driven in a first angular direction and a second, opposite angular direction so that objects can be selectively diverted to either side of the conveyor belt at a desired diverting angle.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: October 24, 2023
    Assignee: LAITRAM, L.L.C.
    Inventor: Matthew L. Fourney