Patents Assigned to LEWCO, Inc.
  • Patent number: 12227371
    Abstract: A roller gap filler system for a conveyor having rollers. The system including a first mounting bracket, second mounting bracket, and first filler bar. The first mounting bracket is configured to mount adjacent a first end of the rollers, and the second mounting bracket is configured to mount adjacent a second end of the rollers, where the second end is opposite the first end. The first filler bar is configured to extend between the first mounting bracket and the second mounting bracket and be positioned between a first roller and a second roller of the plurality of rollers. A plunger is associated with the first filler bar, the plunger being moveable between a coupling position to couple the first filler bar to the second mounting bracket and a release position to uncouple the first filler bar from the second mounting bracket, where the plunger is biased to the coupling position.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: February 18, 2025
    Assignee: LEWCO, INC.
    Inventor: Chester Ellsworth Dietrick
  • Patent number: 11919716
    Abstract: A conveyor system is configured to prevent objects from getting caught or pinched between rollers and belts. The system includes a base, frames on opposite sides of the base, a plurality of rollers each having a bearing, an attachment axle, a drive shaft, a drive belt connecting the draft shaft to one of the bearings, and connecting belts connecting the bearings. The bearings may be disposed between the frames such that the drive belt and connecting belts are protected between the frames or may be disposed within the frames such that the drive belt and connecting belts are protected within the frame when a cover is attached to the frame.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: March 5, 2024
    Assignee: LEWCO, INC.
    Inventor: Gerald T. Guerra
  • Patent number: 11192721
    Abstract: A skate wheel conveyor system includes a pair of frame sides of a frame assembly. A plurality of preassembled rollers is received between the pair of frame members. Each of the rollers includes a plurality of wheels interposed between a plurality of spacers and a shaft receiving the plurality of wheels and the plurality of spacers. A quick assembly system retains the rollers between the pair of frame members and minimizing deflections of the preassembled rollers.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: December 7, 2021
    Assignee: LEWCO, INC.
    Inventors: Gerald T. Guerra, Albert E. Sparling, Mark Bosley, Justin Zimmerman
  • Patent number: 10988314
    Abstract: A conveyor system includes a drive assembly and a plurality of rollers configured to singulate a plurality of conveyed articles travelling on the plurality of rollers along a direction of travel. Each of the plurality of rollers having a drive end and a base end. The drive end having a drive sheave including a plurality of grooves and a plurality of peaks interposed between the plurality of grooves formed on a surface thereof. The drive assembly is coupled to the drive end of at least one of the plurality of rollers by a drive belt. At least a first portion of the plurality of rollers is disposed at an angle with respect to the direction of travel.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 27, 2021
    Assignee: LEWCO, INC.
    Inventors: Gerald T. Guerra, Albert E. Sparling, Charles J. Fresch
  • Patent number: 10793360
    Abstract: A skate wheel conveyor system includes a pair of frame sides of a frame assembly. A plurality of preassembled rollers is received between the pair of frame members. Each of the rollers includes a plurality of wheels interposed between a plurality of spacers and a shaft receiving the plurality of wheels and the plurality of spacers. A quick assembly system retains the rollers between the pair of frame members and minimizing deflections of the preassembled rollers.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: October 6, 2020
    Assignee: LEWCO, INC.
    Inventors: Gerald T. Guerra, Albert E. Sparling, Mark Bosley, Justin Zimmerman
  • Patent number: 10556745
    Abstract: A conveyor system includes a drive assembly and a plurality of rollers configured to singulate a plurality of conveyed articles travelling on the plurality of rollers along a direction of travel. Each of the plurality of rollers having a drive end and a base end. The drive end having a drive sheave including a plurality of grooves and a plurality of peaks interposed between the plurality of grooves formed on a surface thereof. The drive assembly is coupled to the drive end of at least one of the plurality of rollers by a drive belt. At least a first portion of the plurality of rollers is disposed at an angle with respect to the direction of travel.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: February 11, 2020
    Assignee: LEWCO, INC.
    Inventors: Gerald T. Guerra, Albert E. Sparling, Charles J. Fresch
  • Patent number: 10472179
    Abstract: A cartridge bearing assembly for a roller conveyor system includes a housing having a first end, a second end opposing the first end, an inner surface, and an outer surface. A pair of bearings is spaced from each other and disposed in the housing. An shaft is received by the pair of bearings. The shaft is formed from a plastic material. A spring is disposed about a first portion of the shaft intermediate the pair of bearings. The spring biases the shaft outwardly from the first end of the housing.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: November 12, 2019
    Assignee: LEWCO, INC.
    Inventors: Gerald T. Guerra, Albert E. Sparling, Charles J. Fresch
  • Patent number: 10214358
    Abstract: A conveyor system comprising a series of rollers coupled to a side of a frame and configured to convey a plurality of conveyed articles thereacross along a direction of travel. Each of the rollers has a drive end. The series of rollers including a directly driven roller and a plurality of slave driven rollers disposed after the directly driven roller with respect to the direction of travel. The conveyor system includes a plurality of sheaves. Each of the sheaves is coupled to a drive end of one of the rollers. Each of the sheaves includes a plurality of V-shaped grooves formed in an outer surface thereof. The grooves are divided into an inner portion and an outer portion. An outer diameter of the inner portion of each of the sheaves is unequal to an outer diameter of the outer portion of each of the sheaves.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 26, 2019
    Assignee: LEWCO, INC.
    Inventor: Gerald T. Guerra
  • Patent number: 9981804
    Abstract: A conveyor system includes a drive assembly and a plurality of rollers configured to singulate a plurality of conveyed articles travelling on the plurality of rollers along a direction of travel. Each of the plurality of rollers having a drive end and a base end. The drive end having a drive sheave including a plurality of grooves and a plurality of peaks interposed between the plurality of grooves formed on a surface thereof. The drive assembly is coupled to the drive end of at least one of the plurality of rollers by a drive belt. At least a first portion of the plurality of rollers are disposed at an angle with respect to the direction of travel.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: May 29, 2018
    Assignee: LEWCO, INC.
    Inventors: Gerald T. Guerra, Albert E. Sparling, Charles J. Fresch
  • Patent number: 9643784
    Abstract: A sleeve for a conveyor roller includes a tubular wall configured to receive and press-fittingly engage with an outer surface of the conveyor roller. The sleeve includes a plurality of engagement members. The plurality of engagement members are formed on an outer surface of the tube and configured to engage with a torque transmitter.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 9, 2017
    Assignee: LEWCO, INC.
    Inventor: Gerald T. Guerra
  • Patent number: D765938
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: September 6, 2016
    Assignee: LEWCO, Inc.
    Inventor: Gerald T. Guerra