Patents Represented by Law Firm Wenderoth, Lind & Ponck
  • Form device for cellular concrete and method of making such concrete
    Patent number: 5110084
    Abstract: A form device for cellular concrete, including a number of piled-up form units having a heat-insulating bottom and shell, a heat-insulating top board, and a bottom-to-shell joint. A cellular concrete manufacture is produced by mixing cement with warm water at a temperature of 40.degree. to 75.degree. C. to form a warm cement mortar, mixing the mortar with a bubbled warm frother solution to form a warm cellular concrete paste, and hardening the paste using such heat-insulating form device.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: May 5, 1992
    Assignee: Nissei Plan, Inc.
    Inventors: Mikio Hihara, Nobuhisa Suzuki