Patents Examined by Jay H. Silbaugh
  • Method for forming plastic containers
    Patent number: 4822543
    Abstract: A method for producing a blow molded, heat set container including at least one large collapse panel in a side wall of the container. The area of the side wall of the container forming a collapse panel is heat set at a different temperature than the area of the side wall of the container adjacent to the collapse panel to prevent distortion of the large collapse panel when the container is removed from the mold.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: April 18, 1989
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Takao Iizuka, Akiho Ota