Patents by Inventor Anthony Ciavattoni

Anthony Ciavattoni has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4251730
    Abstract: Panoramic dental X-ray machine possessing mechanical and electronic simplicity for providing both continuous and discontinuous radiographs of a dental arch area. The machine includes an excursion mechanism which causes a tubehead-camera assembly to uninterruptedly circularly orbit the patient's head at a constant speed. A drive mechanism is employed which controls the shifting or transport of the patient along an X-axis only, when either continuous or discontinuous images are desired. The kVp and milliamperes remain constant during the entire exposure of the patient to the X-rays as well as the rotational speed of the tubehead-camera assembly, and no attenuating members are required in the X-ray path for varying intensity of the X-ray beam.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: February 17, 1981
    Assignee: Pennwalt Corporation
    Inventors: Robert H. Cushman, Anthony Ciavattoni, John J. Flynn, Thomas J. Schubert
  • Patent number: 4247779
    Abstract: Film drive mechanism for use with a panoramic X-ray machine which provides continuous and discontinuous radiographic images of dental arch areas of a shifting patient. The mechanism utilizes electromagnetic clutches, linkage structures and cams for varying the rotational speed of a film drive shaft in accordance with the mode of radiographing selected, i.e., continuous or discontinuous. The film drive shaft controls rotation of a drum which has the film wrapped therearound.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: January 27, 1981
    Assignee: Pennwalt Corporation
    Inventors: Anthony Ciavattoni, Jack Flynn, Josef Ujvary
  • Patent number: 4221970
    Abstract: Film drive mechanism for use with a panoramic X-ray machine which provides continuous and discontinuous radiographic images of dental arch areas of a shifting patient. The mechanism utilizes a linkage structure which carries a pair of shiftable cam followers which are separably engageable with cam members having working surfaces configured to advance or retard the speed of rotation of the linkage structure in accordance with mode of radiographing selected, i.e., continuous or discontinuous. A film drive shaft rotates in accordance with an output shaft connected to an output member of the cam-controlled rotating linkage structure which film drive shaft controls speed of rotation of a drum which has the X-ray film wrapped therearound.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: September 9, 1980
    Assignee: Pennwalt Corporation
    Inventors: Anthony Ciavattoni, John J. Flynn, Theodore Weber, Jr.
  • Patent number: 4216383
    Abstract: Handling rate of patients being processed for panoramic dental radiographing when tubehead-camera assembly of a low silhouette panoramic dental X-ray machine is rotated for a scan in one direction only is substantially equalized with the conventional bi-directional scan, thus minimizing disadvantages concomitant with the latter. Structure is described which effects fast return of the tubehead-camera assembly with its simultaneous elevation for facilitating the radiographed patient's exit from the machine and the entrance of another patient.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: August 5, 1980
    Assignee: Pennwalt Corporation
    Inventors: Robert H. Cushman, Fred W. Hart, Jr., David R. Kircher, Anthony Ciavattoni
  • Patent number: 4172977
    Abstract: Panoramic dental X-ray machine having an improved X-ray film drive mechanism for coordinating the speed of travel of the X-ray film with non-constant speeds of lateral chair shift to provide continuous radiographs of typical dental arch areas. The film drive mechanism employs a non-rotating cam slidably mounted about a motor shaft which rotates an assembly comprising a tubehead and a cassette holder assembly. The non-rotating cam is provided with adjacent opposing slope areas for programming decreased film travel speed when the incisors of the dental arch are being X-rayed. The film is traveling at its slowest rate of speed when the midline of the incisors is being X-rayed while the chair is traveling at its fastest rate of speed thereat. The chair shifts during the X-raying of the anterior region only. A cam follower is mounted to a plate which is pivotally mounted to the tubehead-cassette holder assembly for rotation with assembly.
    Type: Grant
    Filed: March 24, 1978
    Date of Patent: October 30, 1979
    Assignee: Pennwalt Corporation
    Inventors: Anthony Ciavattoni, John J. Flynn, Robert H. Cushman
  • Patent number: 4168633
    Abstract: Excursion mechanism for rotating a large rotating disc member having a column upstanding therefrom at an outer portion thereof, the column being permanently affixed thereto. The column supports an X-ray source and camera for radiographing a patient's dental arch area. The column circularly orbits about the patient seated in a patient chair which rests on a stationary platform disposed above the large rotating disc member. A sprocket is rotatably mounted on the rotating disc member. A belt articulates between the sprocket and the stationary patient platform such that rotation of the sprocket through external motor means causes the large rotating disc member and column to orbit the patient.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: September 25, 1979
    Assignee: Pennwalt Corporation
    Inventors: Anthony Ciavattoni, Josef Ujvary, Robert H. Cushman
  • Patent number: 4125774
    Abstract: A dental X-ray machine for providing both continuous and discontinuous radiographic images of a patient's dental arch area. Continuous images are obtained when an X-ray source-camera assembly orbits a patient in one direction while the patient is transported in a substantially semicircular pattern in the opposite direction. The pattern is achieved through improved X-Y drive mechanism which rotates a crank assembly having a pair of depending roller guides, one of which roller guides engages guideway means affixed to a plate which is capable of traveling in an X-direction only, and the other roller guide engaging similar guideway means affixed to another plate which is capable of traveling in a Y direction only. The combined motion of the plates, upon rotation of the crank assembly produces an X-Y pattern resembling a semicircle.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: November 14, 1978
    Assignee: Pennwalt Corporation
    Inventors: Anthony Ciavattoni, Josef Ujvary, John M. Gardella