Patents Assigned to Pao-Sou Lin
  • Precast concrete slab and method of making same
    Patent number: 5178941
    Abstract: Disclosed is an improved precast concrete slab comprising a slab body formed of a composite of expandable sintered stones, glass fibers, and foam concrete; at least a layer of non-metallic material having pores for filling in the slab body is provided in the middle portion of the slab body; the concrete slab may be molded singly or cut from a pre-molded concrete block formed of the above-mentioned composite materials and having arranged therein a multiplicity of layers of non-metallic material.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: January 12, 1993
    Assignee: Pao-Sou Lin
    Inventor: Ming-Chien Wu