公开(公告)号：US4988556A

公开(公告)日：1991-01-29

申请号：US346912

申请日：1989-05-03

申请人： Carl G. Nilsen ,  Gary L. Weisling ,  Arthur Sternheimer ,  Ralph A. Montes ,  Douglas R. Schoen

发明人： Carl G. Nilsen ,  Gary L. Weisling ,  Arthur Sternheimer ,  Ralph A. Montes ,  Douglas R. Schoen

IPC分类号： B44C5/02 ,  G03B21/64

CPC分类号： B44C5/02 ,  G03B21/64 ,  Y10T428/24264 ,  Y10T428/24314 ,  Y10T428/24777 ,  Y10T428/24802 ,  Y10T428/24826 ,  Y10T428/266 ,  Y10T428/31906

摘要： A device for mounting a transparency. The device includes back and front sheets of transparent plastic. The outer edges of the sheets are continuously bonded together. In a preferred embodiment, an opaque coating on the front sheet defines one or more generally rectangular windows. Each window is variously sized to permit the transparency to be viewed therethrough but to prevent light from leaking around the transparency. The sheets are continuously bonded together along three sides of the window to form a pocket between the sheets for mounting the transparency. A slit is formed along a fourth side of the window for inserting the transparency into the pocket.

摘要翻译： 用于安装透明胶片的装置。 该装置包括透明塑料的后片和前片。 片材的外边缘连续地连接在一起。 在优选实施例中，前片上的不透明涂层限定一个或多个大体上矩形的窗口。 每个窗口具有各种尺寸，以允许透明度被透视，但是防止光在透明体周围泄漏。 这些片材沿着窗口的三个侧面连续地结合在一起，以在两片材之间形成用于安装透明体的袋子。 沿着窗口的第四侧形成狭缝，以将透明体插入袋中。