US3828196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray photographing device
Assignee: Siemens AG
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Filing: 1973-03-08
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Granted: 1974-08-06
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Expires: 1993-03-08
Abstract
Abstract An X-ray photographing device has a transporting device for sheet films for transporting individual loose film sheets from a ready position protected from rays to a photographing position and from the photographing position to a delivery location protected from rays. The invention is particularly characterized by the provision of a film carriage having at least one suction cup for holding the film sheets and connected to a pressure actuating system.
Inventors
- 👤 H Berger
- 👤 N Mika
- 👤 R Schuldreich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:40
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/025
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
In an X-ray photographing device having an X-ray tube, means for transportation of film sheets having a ready station for taking up unexposed film sheets, a delivery station foR the delivery of the exposed film sheets and having a storing cassette receiving the exposed film sheets, and an exposure station between said ready station and said delivery station and including a fixed plate having a first intensifying screen, said means comprising a movable carriage having a second intensifying screen, said carriage having a suction cup, and a low-pressure actuating system connected with said suction cup and holding a film sheet in front of said second intensifying screen and moving said film sheet, together with the carriage, through these stations.
Claim 2
Dependent Claim
119 words
In an X-ray photographing device having an X-ray tube, means for transportation of film sheets having a ready station for taking up unexposed film sheets, a delivery station foR the delivery of the exposed film sheets and having a storing cassette receiving the exposed film sheets, and an exposure station between said ready station and said delivery station and including a fixed plate having a first intensifying screen, said means comprising a movable carriage having a second intensifying screen, said carriage having a suction cup, and a low-pressure actuating system connected with said suction cup and holding a film sheet in front of said second intensifying screen and moving said film sheet, together with the carriage, through these stations.
Claim 3
Dependent Claim
27 words
A device in accordance with claim 1, wherein said suction cup is adapted to engage that portion of said film sheet which is used for name inscription.
Claim 4
Dependent Claim
31 words
A device in accordance with claim 1, wherein said suction cup is adapted to engage the margin of said film sheet which is in the front in the direction of transportation.
Claim 5
Dependent Claim
21 words
A device in accordance with claim 1, comprising means operating said pressure-actuating system in relation to the location of said carriage.
Claim 6
Dependent Claim
91 words
A device in accordance with claim 1, having means pressing said plate against said carriage for stopping with said film sheet in front of said plate in said exposure station between said X-ray source and said plate, said carriage having a frame-like structure with an elastically bendable wall on its side opposite to said plate holding said suction cup, said carriage and said plate having each one intensifying screen located on their surfaces opposite to one another, said carriage having a frame-like pad, fixed on the side opposite to said plate.
Claim 7
Dependent Claim
27 words
A device in accordance with claim 5, comprising tumbler-like means supporting said plate for engagement with said carriage, said plate being movable in the direction of X-rays.
Claim 8
Dependent Claim
30 words
A device in accordance with claim 5, comprising a low-pressure actuated switch switching on said X-ray tube when adequate low pressure has been provided between said carriage and said plate.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |