US3683182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marking devices for x-ray film
Assignee: KATUM CORP
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Filing: 1969-09-11
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Granted: 1972-08-08
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Expires: 1989-09-11
Abstract
Abstract The X-ray film is enclosed within a light-tight holding device, so arranged that the X-ray exposure is made with the film therein. An electro-luminescent lamp in the form of a flat plate is mounted in the holding device, which has a light-trap slot for the insertion of an identification card between the lamp and the film. The lamp is energized in connection with the X-ray exposure, so that a latent photographic image is produced on the film, to correspond with the identifying markings on the card. In one embodiment, the electro-luminescent lamp is mounted within a cassette, adapted to hold an X-ray film. The identification card is movable into direct engagement with the film. The cassette is provided with contacts whereby the lamp is connected to an energizing circuit when the cassette is mounted in its exposure position. In another embodiment, a fiber optic plate is provided between the identification card and the film to transmit an image of the identifying markings to the film. This construction makes it possible to feed the film into and out of the holding device, from a supply magazine to a receiving magazine.
Inventors
- 👤 Robert B Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:08
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/047
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
260 words
A marking device for X-ray films, comprising light-tight holding means including a film receptacle for receiving an X-ray film, means for feeding successive films into and out of said receptacle, an electro-luminescent lamp mounted on said holding means opposite one side of the film, said lamp being in the form of a flat plate, said holding means having a wall portion with a recess therein for receiving said flat plate, a fiber optic member disposed between said lamp and a portion of the film, said holding means having a portion with a light-trap slot therein for receiving an identification member between said lamp and said fiber optic member, the identification member comprising a base sheet having identifying markings thereon, said base sheet and said markings differing in light transmissiveness, and means for selectively supplying an electrical voltage to said lamp so as to energize said lamp, said lamp being effective to illuminate the identifying markings on said identification member, the identification member being disposed between said lamp and said fiber optic member while said fiber optic member is sandwiched between the identification member and the film, said fiber optic member being of the type which transmits light along parallel paths, whereby said fiber optic member transfers the image of said identifying markings to the film so as to produce a latent photographic image of said markings on a portion of the film, said fiber optic member preventing any possible contact between the film and the identification member whereby the identification member cannot interfere with the feeding movement of the film.
Claim 2
Dependent Claim
260 words
A marking device for X-ray films, comprising light-tight holding means including a film receptacle for receiving an X-ray film, means for feeding successive films into and out of said receptacle, an electro-luminescent lamp mounted on said holding means opposite one side of the film, said lamp being in the form of a flat plate, said holding means having a wall portion with a recess therein for receiving said flat plate, a fiber optic member disposed between said lamp and a portion of the film, said holding means having a portion with a light-trap slot therein for receiving an identification member between said lamp and said fiber optic member, the identification member comprising a base sheet having identifying markings thereon, said base sheet and said markings differing in light transmissiveness, and means for selectively supplying an electrical voltage to said lamp so as to energize said lamp, said lamp being effective to illuminate the identifying markings on said identification member, the identification member being disposed between said lamp and said fiber optic member while said fiber optic member is sandwiched between the identification member and the film, said fiber optic member being of the type which transmits light along parallel paths, whereby said fiber optic member transfers the image of said identifying markings to the film so as to produce a latent photographic image of said markings on a portion of the film, said fiber optic member preventing any possible contact between the film and the identification member whereby the identification member cannot interfere with the feeding movement of the film.
Claim 3
Dependent Claim
49 words
A marking device according to claim 1, in which said film receptacle has entrance and exit means through which the successive films may be transported, said fiber optic member presenting a smooth surface to the films and preventing the identification member from interfering with the movement of the films.
Claim 4
Dependent Claim
33 words
A marking device according to claim 1, in which said fiber optic member is in the form of a flat plate having opposite flat surfaces for engaging the identification member and the films.
Claim 5
Dependent Claim
30 words
A marking device according to claim 3, in which said fiber optic member has a large number of parallel light-transmitting fibers extending between said flat surfaces and disposed perpendicular thereto.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |