Serial Film Or Film Pack Changer Patents (Class 378/173)
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Patent number: 4667102Abstract: A radiographic system for obtaining a visible radiation image using a stimulable phosphor sheet, including an improved spot shot apparatus having a transport system for transporting the stimulable sheets from a supply magazine to a receiving magazine through a park and exposure station where exposure to radiation occurs. A plurality of the sheet are stacked in the supply magazine and are sequentially transported through the exposure station to the receiving magazine by the transport system. The transport system has independent transport portions for transporting a stimulable phosphor sheet from the supply magazine to the receiving magazine through the exposure station. One transporting channel is disposed between the supply magazine and the exposure station and retains the unexposed stimulable phosphor sheet until an advanced stimulable phosphor sheet is exposed to form and store radiographic image therein and is fed toward the receiving magazine.Type: GrantFiled: April 29, 1985Date of Patent: May 19, 1987Assignee: Kabushiki Kaisha ToshibaInventors: Katsuhide Koyama, Shigemi Fujiwara, Hiroshi Kageyama
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Patent number: 4663528Abstract: A radiographic system for obtaining a visible radiation image by use of a stimulable phosphor sheet including a spot shot apparatus having a transport system for transporting the stimulable sheets from the supply magazine to the receiving magazine through a park and exposure station at which radiation is directed to the sheets. A plurality of the sheets are stacked in a supply magazine with the side of each sheet opposite the side having the phosphor layer facing upward. The sheets are sequentially transported to the exposure station for radiographic imaging, and then to a receiving magazine by a transport system. The receiving magazine includes a light-tight receiving magazine including one side having an access opening for receiving the exposed stimulable phosphor sheets. A removable shutter is insertable in the receiving magazine to block the access opening, and maintains the light-tight environment when the magazine is inserted in and removed from the housing structure defining a spot shot apparatus.Type: GrantFiled: April 29, 1985Date of Patent: May 5, 1987Assignee: Kabushiki Kaisha ToshibaInventors: Shigemi Fujiwara, Katsuhide Koyama, Hiroshi Kageyama
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Patent number: 4663527Abstract: A radiographic system for obtaining a visible radiation image by use of a stimulable phosphor sheet, including a spot shot apparatus featuring a transport system for transporting the stimulable sheets from the supply magazine to the receiving magazine through a park and exposure station at which radiation is directed to the sheet. A plurality of the stimulable phosphor sheets are stacked in a supply magazine and are taken-up one by one from the stack in the supply magazine.Type: GrantFiled: April 29, 1985Date of Patent: May 5, 1987Assignee: Kabushiki Kaisha ToshibaInventors: Katsuhide Koyama, Shigemi Fujiwara, Hiroshi Kageyama
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Patent number: 4659929Abstract: A radiographic system for obtaining a visible radiation image by use of a stimulable phosphor sheet including a spot shot apparatus having a transport system for transporting the stimulable sheets from a supply magazine to a receiving magazine through a park and exposure station at which radiation is directed to the sheets. A plurality of the sheets are stacked in a supply magazine with the side of the sheets opposite the side having the phosphor layer facing upward. The sheets are sequentially transported to the exposure station for a radiographic imaging, and then to a receiving magazine by a transport system.Type: GrantFiled: April 29, 1985Date of Patent: April 21, 1987Assignee: Kabushiki Kaisha ToshibaInventors: Shigemi Fujiwara, Katsuhide Koyama, Hiroshi Kageyama
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Patent number: 4613982Abstract: The invention relates to a radiodiagnostics apparatus for mammograms with an adjustable x-ray tube fastened to a mount, a compression device, and two recording stages to be selectively aligned with the x-ray tube. The recording stages are pivotably connected with the mount in such a way that one can be brought into a recording position and the second into a parked position.Type: GrantFiled: May 21, 1984Date of Patent: September 23, 1986Assignee: Siemens AktiengesellschaftInventors: Hans-Peter Dornheim, Edmund Saffer
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Patent number: 4597097Abstract: In the disclosed device a film loader loads film sheets of different length to be exposed by X-rays. A transport arrangement transports the sheets to positions at which they are to be exposed. A holder keeps the upper edge of the film sheets at the same height in the exposure position regardless of the sheet length.Type: GrantFiled: May 21, 1984Date of Patent: June 24, 1986Assignee: Canon Kabushiki KaishaInventor: Kenichi Suzuki
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Patent number: 4555213Abstract: A film package containing a stack of notched films in a light-tight envelope is held vertically in a light-tight loading chamber by a clamp member engaging with the notches of the films. The lower end of the envelope is cut, and the envelope is moved vertically relative to the films until the films are projected from the lower end of the envelope while the films are clamped by the clamp member. The clamp member is then disengaged from the notches of the films, and the films are allowed to move down into a receiving chamber positioned under the loading chamber. Then, a shutter is closed between the receiving chamber and the loading chamber to shield the films in the receiving chamber from light.Type: GrantFiled: January 10, 1984Date of Patent: November 26, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Kaoru Tamura, Sadami Yamada
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Patent number: 4531878Abstract: A film package containing a stack of films in a light-tight envelope is held vertically in a light-tight loading chamber, and a lower end of the envelope is cut while at least the films are prevented from falling. A film receiving case is moved upwardly to the vicinity of the lower end of the film package, and the films are allowed to fall onto the case. The case is then moved down to completely separate the films from the light-tight envelope, and a shutter is closed between the envelope and the films to shield the films from light.Type: GrantFiled: August 19, 1983Date of Patent: July 30, 1985Assignee: Fuji Photo Film Co., Ltd.Inventor: Kaoru Tamura
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Patent number: 4523420Abstract: The invention relates to an X-ray examination apparatus comprising a light-tight film processing section with one or more film storage magazines. A film sheet can be removed from the magazine in order to be transported to the exposure position. The apparatus also comprises a cassette loading and unloading station as well as a film guide device. A film sheet can be transported by the film guide device either into the beam path at the exposure position or into a cassette in the cassette loading and unloading station. Thus, cassette exposures can also be made without loading and unloading the cassette in a separate dark room or without a so-called daylight system being necessary.Type: GrantFiled: August 24, 1984Date of Patent: June 18, 1985Assignee: U.S. Philips CorporationInventors: Harald Kayser, Wilfried Pfeiffer
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Patent number: 4495634Abstract: In the disclosed device a film loader loads film sheets of different length to be exposed by X-rays. A transport arrangement transports the sheets to positions at which they are to be exposed. A holder keeps the upper edge of the film sheets at the same height in the exposure position regardless of the sheet length.Type: GrantFiled: April 22, 1982Date of Patent: January 22, 1985Assignee: Canon Kabushiki KaishaInventor: Kenichi Suzuki
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Patent number: 4483014Abstract: A medical X-ray inspection apparatus is provided with an exposure machine in which sheet films are successively conveyed to an exposure stage and exposed to X-rays passed through an object to be photographed, a receive magazine provided with a containing space for temporally containing the exposed sheet films therein and a containing chamber for containing therein the sheet films in a piled relationship, the receive magazine being removably mountable to the exposure machine, a member in the receive magazine for holding the forward end of each sheet film, a support member for supporting the opposite side edges of each sheet film, the support member being cyclically movable away from the movement path of the sheet films for shifting the sheet films from the containing space of the receive magazine to the containing chamber, and another support member for supporting the rearward end of the sheet film to separate a newly contained sheet film from the sheet films piled in the containing chamber, said another suppoType: GrantFiled: February 10, 1984Date of Patent: November 13, 1984Assignee: Canon Kabushiki KaishaInventors: Naoki Yuguchi, Keiichi Kawasaki
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Patent number: 4417356Abstract: A magnetic friction device for permitting one machine member to be moved relative to another by applying a predetermined force and for holding one member in a fixed position when the force is discontinued. One member is magnetically susceptible and has a smooth surface interfacing with but slightly spaced from a surface on the other member. Said other member's surface has one or more recesses in which there are magnetic disks of a polymer impregnated with magnetic particles. The disks are attracted to the smooth surface to produce a design controlled predetermined frictional force.Type: GrantFiled: May 14, 1981Date of Patent: November 22, 1983Assignee: General Electric CompanyInventor: David L. Hoffman
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Patent number: 4408339Abstract: A chest X-ray unit is provided which is of compact design and which can be easily utilized. The apparatus includes an exposure station at the front where a film sheet can be tightly held between a pair of intensifier screens, a supply station behind the exposure station for receiving a film cassette and feeding one sheet at a time into the exposure station, and a receiving cassette at the back of the apparatus for receiving one exposed sheet at a time for later developing. A film sheet is moved in a loop from the supply cassette to the exposure station by a pair of input rollers that move the sheet upwardly into a curved guide that extends in a half circle, and by a pair of output rollers at the end of the loop for feeding the sheet downwardly. The output rollers move slightly faster than the input rollers to prevent the middle of the film sheet from scraping against the guide.Type: GrantFiled: February 12, 1981Date of Patent: October 4, 1983Assignee: Xonics, Inc.Inventor: Gunter Schmidt
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Patent number: 4365342Abstract: A serial radiograph system has an improved film changer featuring reusable film pack containers. An exposure station through which X-rays are directed is virtually free of X-ray absorbing material providing a "see through" station. As a consequence of the "see through" exposure station, an image intensification tube positioned under the exposure station provides an unobstructed fluoroscopic image with minimum X-ray dosage to a patient.The film changer utilizes film packs, each of which has a semienclosed, partially sealed, pouch. Each pouch contains a sheet of radiographic film between a pair of intensifying screens. A plurality of the film packs are stacked in a novel supply magazine and are sequentially transported to the exposure station by a transport system having a plurality of pinch roll pairs.Type: GrantFiled: January 23, 1980Date of Patent: December 21, 1982Assignee: Picker International, Inc.Inventor: Tamas A. Vepy
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Patent number: 4358855Abstract: An X-ray system for patient diagnostic services in which the patients are X-rayed at several locations and picture amplifiers pick up the X-ray images and are associated with television cameras which transmit video signals both to a monitor at the X-ray location and to a video signal distributor which delivers signals from a selected camera to a central photographing unit. This unit has a further video monitor, an optical system and shutter and means for replaceably positioning films in the focal plane of these opticals. The exposed film is continuously developed.Type: GrantFiled: August 6, 1980Date of Patent: November 9, 1982Assignee: Medicor MuvekInventors: Karoly Szasz, Sandor Meszaros