Patents Assigned to Aerospace Systems & Technologies Ltd.
  • Process for sealing a perforated web material
    Patent number: 5333415
    Abstract: A process for the mechanical treatment of porous sheet materials entails introducing a particulate material into the pores of the sheet material to block the pores, carrying out the mechanical treatment, and then removing the particles from the pores. The process enables porous sheet materials to be subjected to mechanical operations, for example shaping under gaseous pressure or surface polishing, which could otherwise only be applied to non-porous materials.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: August 2, 1994
    Assignee: Aerospace Systems & Technologies Ltd.
    Inventor: Bryan E. Humphreys