Patents Assigned to American Stair Corporation Inc.
  • Reinforced tread assembly
    Patent number: 4285177
    Abstract: Reinforced tread assemblies for a stairway system having a tread formed of a reinforced concrete material and supported on a metal base member bonded to at least a portion of the underside of the tread to create a laminated construction. A nose section is integrally coupled to the base section and extends upward to protect the front portion of the tread from damage during use.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: August 25, 1981
    Assignee: American Stair Corporation, Inc.
    Inventor: Glen A. Seegers
  • Externally reinforced concrete stairs
    Patent number: 4250672
    Abstract: An externally reinforced concrete structure including a plurality of elongated C-channels interconnected to form a unitary body. The unitary body created by the C-channels is utilized to function as formwork to aid in erection of a concrete structure and to lend structural support of the concrete upon the concrete being set by creating a stressed-skin construction.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: February 17, 1981
    Assignee: American Stair Corporation Inc.
    Inventors: Glen A. Seegers, H. James Seegers