Patents Assigned to Haiming United Energy Group Matrixnets Tech Co Ltd
  • Rotary printing integrated ink box for seal printing
    Patent number: 11518178
    Abstract: A rotary printing integrated ink box special for seal printing comprises an ink box body (1) with a cylindrical or elliptic cylindrical outer contour, a spray head (6) with a circuit board (5) is arranged outside the ink box body (1), the spray head (6) corresponds to an ink outlet (3), and contacts (7) connected with control lines of the spray head (6) are integrated on the circuit board (5); and a rotary fixed surface of the ink box body (1) is parallel to a rotary injection surface of the spray head (6).
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: December 6, 2022
    Assignee: Haiming United Energy Group Matrixnets Tech Co Ltd
    Inventors: Haiming Sang, Ge Gan, Song Li