Magnetically attractive marking device and holding member for x-ray film holder

Claim 2

In an X-ray film holder having a nonmagnetic cover for overlying an X-ray film, the improvement comprising, a metal strip of holding material attached to a selected portion of said cover to overlie a portion of the film, and a marker overlying said strip and having stencil-type spaces cut therein and defining letters, said marker comprising a strip of magnet material and said holding material being composed of a metal magnetically attracted to said magnet material whereby the marker is releasably attached to said cover to produce an identifying impression on a film exposed through the cover and said spaces.

Claim 3

The improvement as defined in claim 1 in which said marker is ferrite ceramic magnet material of substantially different perviousness to X-rays as compared to said spaces.

Claim 4

The improvement as defined in claim 1 in which said spaces are filled with material having a color contrasting with the color of said magnet material and having substantially different perviousness to X-rays.

Claim 5

In an X-ray film holder including a film cover, the improvement comprising, a marking member in a preselected position overlying a portion of said cover and defining a preselected marking with areas of different perviousness to X-rays, and a holding member secured to said cover and positioned thereon for engagement with said marking member when the latter is in said preselected position whereby an image of said marking is reproduced on a film during exposure through saiD cover, one of said members including a magnet and the other being composed of material attracted by said magnet whereby said marking member is removably attached to said cover and securely held thereon in all positions of said film holder.

Claim 6

In an X-ray film holder including a film cover, the improvement comprising, a marking member in a preselected position overlying a portion of said cover and defining a preselected marking with areas of different perviousness to X-rays, and a holding member secured to said cover and positioned thereon for engagement with said marking member when the latter is in said preselected position whereby an image of said marking is reproduced on a film during exposure through saiD cover, one of said members including a magnet and the other being composed of material attracted by said magnet whereby said marking member is removably attached to said cover and securely held thereon in all positions of said film holder.

Claim 7

The improvement as defined in claim 4 in which said marking member is composed, at least in part, of magnet material to form said magnet, and said holding member is composed, at least in part, of said material attracted by said magnet.

Claim 8

The improvement as defined in claim 4 in which said marking member is a strip of magnet material having central areas cut out to produce said areas of different perviousness.

Claim 9

The improvement as defined in claim 6 in which said cutout areas define stencil-type letters.

Claim 10

The improvement as defined in claim 7 in which said cutout areas are filled with material of a color contrasting with the color of said strip for ease of reading, and of substantially different perviousness, as compared to said strip, for effectiveness of marking.

Claim 11

The improvement as defined in claim 5 in which said holding member is a strip of metallic shim stock glued to said cover.

Claim 12

In an X-ray film holder having a cover for X-ray film, the improvement comprising, a marking member in a preselected position overlying a portion of said cover and having areas of different perviousness to X-rays defining a selected marking, a holding member secured in a predetermined position to said cover for engagement with said marking member when the latter is in said preselected position, opposed surfaces on said members, and said marking and holding member coacting to produce magnetic forces acting between said surfaces to retain said marking member releasably on said holding member (in all positions of said holder) and to permit release of said marking member from said holding member in response to the lifting of the marking member away from said cover.

Claim 13

In an X-ray film holder having a cover for X-ray film, the improvement comprising, a marking member in a preselected position overlying a portion of said cover and having areas of different perviousness to X-rays defining a selected marking, a holding member secured in a predetermined position to said cover for engagement with said marking member when the latter is in said preselected position, opposed surfaces on said members, and said marking and holding member coacting to produce magnetic forces acting between said surfaces to retain said marking member releasably on said holding member (in all positions of said holder) and to permit release of said marking member from said holding member in response to the lifting of the marking member away from said cover.