Patents Examined by Joye I. Woodard
  • Air bed conveying system
    Patent number: 5078776
    Abstract: An air bed conveying system conveys a workpiece while the workpiece is being floated by air under pressure which is ejected from a plurality of air ejection holes defined in air bed blocks that are supported on respective support blocks. Each of the support blocks is of an integral box-shaped configuration and made of a quartz material having a low thermal expansion coefficient. A plurality of vertical position adjusting mechanisms are disposed underneath each of the support blocks, for adjusting the support block in vertical position.
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: January 7, 1992
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Masuhide Kajii, Yoshihiko Hayashi