Patents Assigned to Chemco Soest BV
  • Patent number: 4826008
    Abstract: A package for light sensitive materials, such as photographic film, generally includes a cylindrical body fabricated from wound paperboard or plastic and includes a closure member at each end to define a light excluding container. The body of the container includes end rings affixed to the body and capable of receiving either a fixed or a removable closure at each end. The ring is permanently attached to the cylindrical body and may provide cooperating means for receiving a removable closure on either or both ends of the container. A closure is removably secured to at least one end of the container by interengagement with cooperating threads or a bayonet joint. Each closure, whether permanent or removable, also includes a centering device which extends into the core of the wound film package and supports the film in a position out of contact with the interior of the container.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 2, 1989
    Assignee: Chemco Soest BV
    Inventor: Johannes H. G. Cloosterman