Patents by Inventor Kozo Aoyama

Kozo Aoyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4035985
    Abstract: An apparatus for wrapping goods in a sheet of a stretchable film material comprises a resiliently deformable pad above a wrapping station, a gripping device for holding fast edge portions of the sheet so that the sheet extends horizontally beneath the pad, a mechanism for upwardly stretching a central portion of the sheet to form a bubble until the top of the bubble reaches the pad, a mechanism for lifting goods to be wrapped into the bubble until the top of the goods is urged against the inner surface of the top of the bubble and two pairs of tucking plates disposed to form a rectangle around the lower part of the bubble and movable inwardly to tuck the marginal portions of the bubbled sheet against the bottom of the goods. The goods are not brought into frictional engagement with the sheet during the stretching whereby the sheet is stretched uniformly throughout the bubbled central portion thereof.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: July 19, 1977
    Assignee: Asahi-Dow Limited
    Inventors: Kozo Aoyama, Hiroshi Iijima, Shizuo Kikuchi