Eastman-kodak Company

Steven A Lamy

Jeffrey Charles Robertson

Randy Eugene Armbruster

William C Wendlandt

Dennis James O'Dea

Bradley S Bush

Raymond P Chapman

Allen B Cullen

James J Powell

A x-ray fill cassette for use with radiographic film. The cassette has a tube side unit and a cover unit. The units together define a film space for the film. The units are relatively pivotable between an open state and a closed state. The tube side unit is substantially convex in at least one of length and width dimensions when the traits are in the open state. The tube side unit is substantially flat in both length and width dimensions when the film is in the film space and the units are in the closed state. The tube side unit includes a compressible pad that adjoins the fill space. The cover unit includes a cover panel, a pressure panel, and an intensifying screen. The cover panel and the pressure panel are rigidly mounted in spaced parallel relation. The intensifying screen is adhered directly to the pressure panel adjoining the film space. The convexity of the tube side unit and the compressible pad are selected to impose on the film, when the film is in the closed state, a substantially uniform compressive force of from about 0.09 psi to about 0.35 psi.

Intensifying x-ray film cassette

An x-ray imaging screen is disclosed comprised of a thermoplastic film support having a planar coating surface and a fluorescent layer coated on that surface. The film support includes an integral lip at its outer boundary extending above the planar coating surface and along peripheral edge portions of the fluorescent layer to protect the fluorescent layer from wear and delamination from the film support. After coating the fluorescent layer on the planar surface of a film support in forming the screen, the coated film support is cut to size by locally heating the film support above its softening point. A softened portion of the film support is caused to flow over the peripheral edge of the fluorescent layer to form the integral lip while cooling the softened portion of the film support immobilizes the integral lip along the peripheral edge of the fluorescent layer, thereby providing a lateral protective buffer for the fluorescent layer along its peripheral edge.

X-ray imaging screen with process for its preparation

Growing community of inventors

Hamlin, NY, United States of America

Steven A Lamy