Patent US2608813A successfully refreshed from Google Patents.
US3912932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for loading films into a radiographic film cassette
Assignee: Fujifilm Holdings Corp
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Filing: 1974-01-31
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Granted: 1975-10-14
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Expires: 1994-01-31
Abstract
Abstract A device for loading film into a radiographic film cassette comprising A FILM RETAINING PORTION FOR RETAINING A STACK OF RADIOGRAPHIC FILMS, A CASSETTE INSERTION PORT PROVIDED UNDER SAID FILM RETAINING PORTION, SAID FILM RETAINING PORTION GRIPPING THE UPPER END OF A GENERALLY UPRIGHT ENVELOPE HOLDING SAID STACK OF RADIOGRAPHIC FILM AND A CUTTER CARRIED BY SAID FILM RETAINING PORTION FOR SEVERING THE LOWER END OF SAID ENVELOPE WITH THE GRIPPED ENVELOPE BEING MOVABLE UPWARDLY TO EXPOSE THE LOWER ENDS OF SAID STACKED FILMS, A LIGHT SHIELDING COVER MOVABLE BETWEEN AN OPEN POSITION AND A CLOSED POSITION AND URGED IN THE DIRECTION TO CLOSE SAID CASSETTE INSERTION PORT, A FILM REMOVAL MEANS FOR REMOVING A FILM FROM SAID FILM RETAINING PORTION IN ACCORDANCE WITH A SIGNAL WHICH INDICATES THAT THE CASSETTE IS INSERTED, A LIGHT SHIELDING MEMBER FOR SHIELDING LIGHT FROM THE FILM REMOVED FROM THE FILM RETAINING PORTION, A SHUTTER MECHANISM PROVIDED ON SAID LIGHT SHIELDING MEMBER FOR CAUSING THE FILM FALL INTO THE CASSETTE BY OPENING, AND MEANS FOR CLOSING THE COVER OF THE CASSETTE INTO WHICH THE FILM HAS BEEN LOADED.
Inventors
- 👤 Takaaki Matsumoto
- 👤 Takeshi Nakamura
- 👤 Kaoru Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:55
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/045
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
215 words
A device for light shield loading of a stack of radiographic film sheets from a sealed envelope into a radiographic film cassette; said device comprising; a light proof housing including an upper film retaining housing portion for retaining said envelope in a generally upright position, said film retaining housing portion including means for gripping the upper end of said envelope and cutting means for severing the lower end of said envelope, said gripping means being raisable to raise said severed envelope to expose the lower ends of said stacked films, a cassette insertion port provided withIn said housing beneath said film retaining portion, a light shielding cover movable between an open position and a closed position, carried by said housing, and urged in a direction to close off said cassette insertion port, a film removal means carried by said housing for removing a film from said film retaining portion in accordance with a signal which indicates that the cassette is inserted, a light shielding member for shielding light from the film removed from the film retaining portion, a shutter mechanism provided on said light shielding member for causing the film to fall into the cassette by opening movement thereof, and means for closing the cover of the cassette into which the film has been loaded.
Claim 2
Independent Claim
215 words
A device for light shield loading of a stack of radiographic film sheets from a sealed envelope into a radiographic film cassette; said device comprising; a light proof housing including an upper film retaining housing portion for retaining said envelope in a generally upright position, said film retaining housing portion including means for gripping the upper end of said envelope and cutting means for severing the lower end of said envelope, said gripping means being raisable to raise said severed envelope to expose the lower ends of said stacked films, a cassette insertion port provided withIn said housing beneath said film retaining portion, a light shielding cover movable between an open position and a closed position, carried by said housing, and urged in a direction to close off said cassette insertion port, a film removal means carried by said housing for removing a film from said film retaining portion in accordance with a signal which indicates that the cassette is inserted, a light shielding member for shielding light from the film removed from the film retaining portion, a shutter mechanism provided on said light shielding member for causing the film to fall into the cassette by opening movement thereof, and means for closing the cover of the cassette into which the film has been loaded.
Claim 3
Dependent Claim
39 words
The device for loading film into a radiographic film cassette as defined in claim 1, wherein said film removal means is a suction member operated by a vacuum means to attract the uppermost film of said stack of films.
Claim 4
Dependent Claim
43 words
The device for loading film into a radiographic film cassette as defined in claim 2, including a hopper to receive the film removed by said suction member, said shutter being provided under said hopper whereby the film falls when the shutter is opened.
Claim 5
Dependent Claim
49 words
The film loading device as defined in claim 1 wherein said cassette cover closing means comprises a pair of rollers provided under the position where the cassette is held during the loading of films therein, said rollers closing the cover of the cassette when the cassette is passed therethrough.
Claim 6
Dependent Claim
41 words
The film loading device as defined in claim 1, including a microswitch to detect the insertion of the cassette and electrically connected with the film removal means to operate the film removal means upon detection of the insertion of the cassette.
Claim 7
Dependent Claim
33 words
The film loading device as defined in claim 5, wherein said microswitch is further electrically connected with said shutter mechanism so that the shutter may be opened only after the cassette is inserted.
Claim 8
Dependent Claim
22 words
The film loading device as defined in claim 6, wherein said film removal means is operable only when the shutter is closed.
References Cited (Backward Citations)
US3075080A
Cited
US3828196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |