Patents Assigned to Christopher Crowell
  • Patent number: 5022681
    Abstract: In a pop-up device for use in a magazine or other publication or for use by itself such as a mailer or the like, two display elements are hingedly connected to a front of two covers. The opening of the front cover forces the erection of the two display elements and allows the elements to stand up out of the plane thereof. A spacing tab is connected between a foreground display element and the back cover and also is connected between a background display element and the back cover. The spacing tab restrains the displays from following the front panel a full one hundred eighty degrees while allowing them each to raise to a specified distance from the back cover. The pop-up is designed for mass-production mechanical fabrication and assembly. A blank is cut to form the display elements and the spacing tabs and is scored to form lines of weakness, which allow easy folding, in the appropriate places.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: June 11, 1991
    Assignee: Christopher Crowell
    Inventor: Ib Penick