Patents by Inventor Wanqiao Wang

Wanqiao Wang 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).

  • Composite handrails with reduced density carcass
    Patent number: 11975943
    Abstract: In a handrail including a carcass, a stretch inhibitor within the carcass, and a sliding layer bonded to the carcass, at least a portion of the carcass has a gas phase dispersed in a solid polymer matrix. The gas phase can reduce a density of the carcass by at least 5% or 10%, or about 15%, as compared to a density of the polymer matrix. The carcass can have a generally uniform distribution of gas bubbles in the polymer matrix, which can define a generally closed cell structure in the polymer matrix. The gas phase can be formed of particles of a syntactic foam dispersed in the polymer matrix. The handrail can further include a cover. The carcass and the cover can be formed of thermoplastic materials, and the cover can represent between 10 and 30% of the overall TPU required for the handrail.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: May 7, 2024
    Assignee: EHC CANADA, INC.
    Inventors: Qingping Guo, Andrew Oliver Kenny, Reginald Anthony Butwell, James Ryan Sabadin, Jason Wong, Hani E. Naguib, Wanqiao Wang, Linghong Li, Ali Owais Anwer, Muhammad Abdul Samad Anwer
  • COMPOSITE HANDRAILS WITH REDUCED DENSITY CARCASS
    Publication number: 20210238012
    Abstract: In a handrail including a carcass, a stretch inhibitor within the carcass, and a sliding layer bonded to the carcass, at least a portion of the carcass has a gas phase dispersed in a solid polymer matrix. The gas phase can reduce a density of the carcass by at least 5% or 10%, or about 15%, as compared to a density of the polymer matrix. The carcass can have a generally uniform distribution of gas bubbles in the polymer matrix, which can define a generally closed cell structure in the polymer matrix. The gas phase can be formed of particles of a syntactic foam dispersed in the polymer matrix. The handrail can further include a cover. The carcass and the cover can be formed of thermoplastic materials, and the cover can represent between 10 and 30% of the overall TPU required for the handrail.
    Type: Application
    Filed: May 7, 2018
    Publication date: August 5, 2021
    Inventors: Qingping Guo, Andrew Oliver Kenny, Reginald Anthony Butwell, James Ryan Sabadin, Jason Wong, Hani E. Naguib, Wanqiao Wang, Linghong Li, Ali Owais Anwer, Muhammad Abdul Samad Anwer