Patents by Inventor Wenlong Lu

Wenlong Lu 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: 8425357
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: April 23, 2013
    Assignee: The Gates Corporation
    Inventors: Xinjian Fan, Wenlong Lu, Yoshitaka Sato
  • Publication number: 20130053200
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Application
    Filed: October 29, 2012
    Publication date: February 28, 2013
    Applicant: THE GATES CORPORATION
    Inventors: Xinjian FAN, Wenlong LU, Yoshitaka SATO
  • Patent number: 8333674
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: December 18, 2012
    Assignee: The Gates Corporation
    Inventors: Xinjian Fan, Wenlong Lu, Yoshitaka Sato
  • Publication number: 20120202634
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 9, 2012
    Applicant: THE GATES CORPORATION
    Inventors: Xinjian FAN, Wenlong LU, Yoshitaka SATO
  • Patent number: 8206251
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and L4-A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the sum of the length of L4 plus the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: June 26, 2012
    Assignee: The Gates Corporation
    Inventors: Xinjian Fan, Wenlong Lu, Yoshitaka Sato
  • Publication number: 20100279808
    Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and L4-A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the sum of the length of L4 plus the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Applicant: THE GATES CORPORATION
    Inventors: Xinjian FAN, Wenlong LU, Yoshitaka SATO