Patents by Inventor Ruizhe MA

Ruizhe MA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10821639
    Abstract: A conveyor component comprises a thermoformable portion chemically bonded to an injection molded base portion. A surface of the thermoformable portion is prepared for bonding. Then an injection moldable material is injected onto the prepared surface to form the injection molded base portion.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: November 3, 2020
    Assignee: Laitram, L.L.C.
    Inventors: Richard A. Keb, Ruizhe Ma, Michael Hendrik DeGroot
  • Patent number: 10427880
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter. Mounting plates at the end of the conveyor support a mounting shaft for mounting the position limiter or other conveyor components in place relative to the drive sprocket.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: October 1, 2019
    Assignee: Laitram, L.L.C.
    Inventors: Jeff Batchelder, Michael Hendrik DeGroot, Friso Antonius Maria Oonk, Laurentius G. J Wolters, Edward T. Mol, Ruizhe Ma
  • Publication number: 20190112129
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter. Mounting plates at the end of the conveyor support a mounting shaft for mounting the position limiter or other conveyor components in place relative to the drive sprocket.
    Type: Application
    Filed: September 5, 2018
    Publication date: April 18, 2019
    Inventors: Jeff Batchelder, Michael Hendrik DeGroot, Friso Antonius Maria Oonk, Laurentius G.J Wolters, Edward T. Mol, Ruizhe Ma
  • Publication number: 20180290355
    Abstract: A conveyor component comprises a thermoformable portion chemically bonded to an injection molded base portion. A surface of the thermoformable portion is prepared for bonding. Then an injection moldable material is injected onto the prepared surface to form the injection molded base portion.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Inventors: Richard A. Keb, Ruizhe Ma, Michael Hendrik DeGroot
  • Patent number: 10077156
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter. Mounting plates at the end of the conveyor support a mounting shaft for mounting the position limiter or other conveyor components in place relative to the drive sprocket.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 18, 2018
    Assignee: Laitram, L.L.C.
    Inventors: Matthew L. Fourney, Michael Hendrik DeGroot, Ruizhe Ma
  • Patent number: 10016920
    Abstract: A conveyor component comprises a thermoformable portion chemically bonded to an injection molded base portion. A surface of the thermoformable portion is prepared for bonding. Then an injection moldable material is injected onto the prepared surface to form the injection molded base portion.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 10, 2018
    Assignee: Laitram, L.L.C.
    Inventors: Richard A. Keb, Ruizhe Ma, Michael Hendrik DeGroot
  • Patent number: 9840374
    Abstract: A self-biasing conveyor belt scraper for a conveyor belt trained around a sprocket includes a base mounted on a shaft below the sprocket and a tapering scraper tip extending from the base. The top of the base contacts the conveyor belt at a first location. The conveyor belt pushes against the top of the base to bias the tapering scraper tip into contact with the conveyor belt at a second location.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 12, 2017
    Assignee: Laitram, L.L.C.
    Inventor: Ruizhe Ma
  • Patent number: 9751697
    Abstract: A split sprocket for belts or chains comprising a first section and a second section that mates with the first section to form a sprocket with drive teeth distributed about the periphery and a central hub for retaining a shaft. The first section includes a snap clamp having a barbed tip for mounting the first section to a shaft. The second section includes mating elements complementary to mating elements in the first section to allow the second section to mate with the first section to form a complete sprocket.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 5, 2017
    Assignee: Laitram, L.L.C.
    Inventor: Ruizhe Ma
  • Publication number: 20170158434
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter. Mounting plates at the end of the conveyor support a mounting shaft for mounting the position limiter or other conveyor components in place relative to the drive sprocket.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 8, 2017
    Inventors: Matthew L. Fourney, Michael Hendrik DeGroot, Ruizhe Ma
  • Patent number: 9555971
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The limiting surface may comprise rotatable rollers mounted to the body, or a continuous arcuate surface. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 31, 2017
    Assignee: Laitram, L.L.C.
    Inventors: Jeff Batchelder, Michael Hendrik DeGroot, Friso Antonius Maria Oonk, Laurentius G. J. Wolters, Edward T. Mol, Ruizhe Ma, Roel Marcel Mellink, Gerko Hulshof
  • Publication number: 20160376108
    Abstract: A self-biasing conveyor belt scraper for a conveyor belt trained around a sprocket includes a base mounted on a shaft below the sprocket and a tapering scraper tip extending from the base. The top of the base contacts the conveyor belt at a first location. The conveyor belt pushes against the top of the base to bias the tapering scraper tip into contact with the conveyor belt at a second location.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 29, 2016
    Inventor: Ruizhe Ma
  • Publication number: 20160312874
    Abstract: A split sprocket for belts or chains comprising a first section and a second section that mates with the first section to form a sprocket with drive teeth distributed about the periphery and a central hub for retaining a shaft. The first section includes a snap clamp having a barbed tip for mounting the first section to a shaft. The second section includes mating elements complementary to mating elements in the first section to allow the second section to mate with the first section to form a complete sprocket.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 27, 2016
    Inventor: Ruizhe Ma
  • Publication number: 20160288386
    Abstract: A conveyor component comprises a thermoformable portion chemically bonded to an injection molded base portion. A surface of the thermoformable portion is prepared for bonding. Then an injection moldable material is injected onto the prepared surface to form the injection molded base portion.
    Type: Application
    Filed: March 21, 2016
    Publication date: October 6, 2016
    Inventors: Richard A. Keb, Ruizhe Ma, Michael Hendrik DeGroot
  • Publication number: 20160167884
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The limiting surface may comprise rotatable rollers mounted to the body, or a continuous arcuate surface. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Inventors: Jeff Batchelder, Michael Hendrik DeGroot, Friso Antonius Maria Oonk, Laurentius G.J. Wolters, Edward T. Mol, Ruizhe Ma, Roel Marcel Mellink, Gerko Hulshof
  • Patent number: 9296565
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The limiting surface may comprise rotatable rollers mounted to the body, or a continuous arcuate surface. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: March 29, 2016
    Assignee: Laitram, L.L.C.
    Inventors: Jeff Batchelder, Michael Hendrik DeGroot, Friso Antonius Maria Oonk, Laurentius G. J. Wolters, Edward T. Mol, Ruizhe Ma, Roel Marcel Mellink, Gerko Hulshof
  • Publication number: 20150210475
    Abstract: A conveyor employs a low-tension, direct drive conveyor belt, and a snap-on position limiter for ensuring proper engagement of the belt and a drive sprocket. The position limiter includes a body, a limiting surface and a snap clap opposite the limiting surface for snapping the position limiter to a mounting shaft. The limiting surface may comprise rotatable rollers mounted to the body, or a continuous arcuate surface. The position limiter may include a mounting arm for mounting a conveyor belt scraper at the front of the position limiter.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 30, 2015
    Inventors: Jeff Batchelder, Michael Hendrik DeGroot, Friso Antonius Maria Oonk, Laurentius G.J. Wolters, Edward T. Mol, Ruizhe MA, Roel Marcel Mellink, Gerko Hulshof