Patents by Inventor Xiaolong CHU

Xiaolong CHU 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).

  • Expansion anchor
    Patent number: 12012985
    Abstract: An expansion anchor includes a bolt, a spacer sleeve, an expansible sleeve, an expanding member, and a collar where the collar is disposed between the expansible sleeve and the spacer sleeve. The bolt is insertable into the spacer sleeve, the collar, and expansible sleeve in sequence and a thread of the bolt at a leading end of the bolt is connected to the expanding member to draw the expanding member into the expansible sleeve and expand the expansible sleeve radially. The collar is formed by a first material with a first hardness and a second material with a second hardness where the first hardness is different from the second hardness.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: June 18, 2024
    Assignee: Hilti Aktiengesellschaft
    Inventors: Xiaolong Chu, Xingda Hu, Marc Schaeffer, Cheng Lin
  • Fastener
    Patent number: 11859647
    Abstract: A fastener includes a main body having a tubular portion and a split portion that extends from a lower end of the tubular portion, and longitudinally includes a tapered section that tapers in a direction towards the tubular portion. The fastener further includes an expansion sleeve annularly surrounding the split portion, wherein the expansion sleeve longitudinally extends to a lower end of the tapered section.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: January 2, 2024
    Assignee: Hilti Aktiengesellschaft
    Inventors: Xiaolong Chu, Cheng Lin, Yixiang Liao, Xiaojian Huang, Man Liu
  • Expansion Anchor
    Publication number: 20220341452
    Abstract: An expansion anchor includes a bolt, a spacer sleeve, an expansible sleeve, an expanding member, and a collar where the collar is disposed between the expansible sleeve and the spacer sleeve. The bolt is insertable into the spacer sleeve, the collar, and expansible sleeve in sequence and a thread of the bolt at a leading end of the bolt is connected to the expanding member to draw the expanding member into the expansible sleeve and expand the expansible sleeve radially. The collar is formed by a first material with a first hardness and a second material with a second hardness where the first hardness is different from the second hardness.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 27, 2022
    Inventors: Xiaolong CHU, Xingda HU, Marc SCHAEFFER, Cheng LIN
  • Fastener
    Publication number: 20210062846
    Abstract: A fastener includes a main body having a tubular portion and a split portion that extends from a lower end of the tubular portion, and longitudinally includes a tapered section that tapers in a direction towards the tubular portion. The fastener further includes an expansion sleeve annularly surrounding the split portion, wherein the expansion sleeve longitudinally extends to a lower end of the tapered section.
    Type: Application
    Filed: December 3, 2018
    Publication date: March 4, 2021
    Applicant: Hilti Aktiengesellschaft
    Inventors: Xiaolong CHU, Cheng LIN, Yixiang LIAO, Xiaojian HUANG, Man LIU
  • Speaker strobe
    Patent number: D1129409
    Type: Grant
    Filed: July 2, 2025
    Date of Patent: June 9, 2026
    Inventor: Xiaolong Chu