Norman Edward Robinson

US Patent:

49531930, Aug 28, 1990

Filed:

Aug 25, 1988

Appl. No.:

7/236198

Inventors:

Norman L. Robinson - Arlington TX

International Classification:

G03B 4202

US Classification:

378162

Abstract:

A fail-safe X-ray film marking system that includes a reusable fastening combination adapted for use in temporarily fastening a marking element to a container that is configured for holding X-ray film. The marking element is at least partially opaque to X-rays, and it is adapted to be positioned on the cassette in such a way that an image of an identifying character of the marking element will be imprinted on the X-ray film (inside the container) after it is exposed to radiation. The fastening combination is formed from X-ray permeable material that will not degrade the quality of an image produced on the subsequently exposed X-ray film; a suitable material for the combination is nylon. The fastening combination preferably includes a relatively large sheet having a pile-like surface comprising a multitude of small, short loops of the kind that can be engaged by a multitude of resilient hooks of the Velcro type. The sheet also has an adhesive mounting surface that is adapted to be securely affixed to the top face of the container in a manner that clearly defines at least a portion of the periphery of a sheet of X-ray film concealed inside the container.