Patents by Inventor Liu Yunbin

Liu Yunbin 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).

  • Publication number: 20130312585
    Abstract: The invention relates to a drumhead for volume-reduced and electronic drums, comprising an elastic mesh, fixed on a drumframe and elastic colloidal coatings integrally formed on the upper and lower surfaces of the elastic mesh. The colloidal coating covers at least a part of the surfaces of the elastic mesh. The elastic mesh uses one of polyester mesh, nylon mesh, cotton-fiber and mesh. Said elastic colloidal coating is round and located at the center of the drum, and has an area of 5%-100% of the entire drumhead surface. By injecting the colloid on the mesh according to the invention, the strength, elasticity and wear resistance of the elastic mesh body can be improved, and the lifetime of the drumhead can be extended up to five times. The invention reduces the sound of the drumstick by 20 dB.
    Type: Application
    Filed: January 22, 2013
    Publication date: November 28, 2013
    Applicant: TIANJIN JINBAO MUSICAL INSTRUMENTS CO., LTD
    Inventors: Liu Yunbin, Dai Yongcai