Patents by Inventor Duane A. Preszler

Duane A. Preszler 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: 8203584
    Abstract: A thermal processor including an oven and a cooling section. The oven is configured to heat an imaging media to a development temperature. The cooling section is configured to cool the imaging media from the development temperature to a desired exit temperature as imaging media moves along a transport path from an entrance to an exit. The cooling section provides a varying rate of heat transfer from the imaging media along the transport path so as to create a varying cooling temperature gradient in the imaging media substantially equal to and not exceeding a varying maximum cooling temperature gradient of imaging media.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 19, 2012
    Assignee: Carestream Health, Inc.
    Inventors: Kent R. Struble, David J. McDaniel, Duane A. Preszler, Paul Stelzig
  • Publication number: 20110187808
    Abstract: A thermal processor including an oven and a cooling section. The oven is configured to heat an imaging media to a development temperature. The cooling section is configured to cool the imaging media from the development temperature to a desired exit temperature as imaging media moves along a transport path from an entrance to an exit. The cooling section provides a varying rate of heat transfer from the imaging media along the transport path so as to create a varying cooling temperature gradient in the imaging media substantially equal to and not exceeding a varying maximum cooling temperature gradient of imaging media.
    Type: Application
    Filed: March 23, 2011
    Publication date: August 4, 2011
    Inventors: Kent R. Struble, David J. McDaniel, Duane A. Preszler, Paul Stelzig
  • Patent number: 7924300
    Abstract: A thermal processor including an oven and a cooling section. The oven is configured to heat an imaging media to a development temperature. The cooling section is configured to cool the imaging media from the development temperature to a desired exit temperature as imaging media moves along a transport path from an entrance to an exit. The cooling section provides a varying rate of heat transfer from the imaging media along the transport path so as to create a varying cooling temperature gradient in the imaging media substantially equal to and not exceeding a varying maximum cooling temperature gradient of imaging media.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: April 12, 2011
    Assignee: Carestream Health, Inc.
    Inventors: Kent R. Struble, David J. McDaniel, Duane A. Preszler, Paul Stelzig
  • Publication number: 20080028968
    Abstract: A thermal processor including an oven and a cooling section. The oven is configured to heat an imaging media to a development temperature. The cooling section is configured to cool the imaging media from the development temperature to a desired exit temperature as imaging media moves along a transport path from an entrance to an exit. The cooling section provides a varying rate of heat transfer from the imaging media along the transport path so as to create a varying cooling temperature gradient in the imaging media substantially equal to and not exceeding a varying maximum cooling temperature gradient of imaging media.
    Type: Application
    Filed: August 7, 2006
    Publication date: February 7, 2008
    Inventors: Kent R. Struble, David J. McDaniel, Duane A. Preszler, Paul Stelzig
  • Patent number: 7108433
    Abstract: A thermal processor for thermally developing an image in an imaging material. The thermal processor includes an oven and a plurality of rollers positioned to form a transport path and, through contact with the imaging material, configured to move the imaging material through the oven along the transport path. Each roller has an initial contact point and a final contact point with the imaging material as the imaging material moves along the transport path. A spacing between the rollers is varied such that a distance between a final contact point and an initial contact point of at least a first pair of rollers along the transport path is different from a distance between a final contact point and an initial contact point of at least a second pair of consecutive rollers along the transport path.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: September 19, 2006
    Assignee: Eastman Kodak Company
    Inventors: Duane A. Preszler, Brian L. Johnson
  • Publication number: 20050285923
    Abstract: A thermal processor for thermally developing an image in an imaging material. The thermal processor includes an oven and a plurality of rollers positioned to form a transport path and, through contact with the imaging material, configured to move the imaging material through the oven along the transport path. Each roller has an initial contact point and a final contact point with the imaging material as the imaging material moves along the transport path. A spacing between the rollers is varied such that a distance between a final contact point and an initial contact point of at least a first pair of rollers along the transport path is different from a distance between a final contact point and an initial contact point of at least a second pair of consecutive rollers along the transport path.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 29, 2005
    Inventors: Duane Preszler, Brian Johnson
  • Patent number: 6979802
    Abstract: A preheat chamber for conditioning an imaging material having a conditioning threshold temperature and a developing threshold temperature. The preheat chamber includes a chamber housing and a heating system. The heating system is configured to heat imaging material to a desired conditioning temperature above the conditioning threshold temperature and below the developing threshold temperature as the imaging material is moved through the chamber housing.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: December 27, 2005
    Assignee: Eastman Kodak Company
    Inventors: Kent R. Struble, Duane A. Preszler
  • Publication number: 20050280690
    Abstract: A thermal processor for thermally developing an image in an imaging material. The thermal processor includes an oven, a plurality of rollers, and a drive band. The rollers each have an outer surface, and are positioned such that the outer surfaces contact an imaging material and form a transport path through the oven. The drive band contacts a least a portion of the outer surface of up to all of the rollers and via the contact drives each roller such that contact between the imaging material and the outer surfaces of the rollers moves the imaging material through the oven along the transport path.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 22, 2005
    Inventor: Duane Preszler
  • Publication number: 20050280689
    Abstract: A thermal processor for thermally developing an image in an imaging material. The thermal processor includes an oven and a plurality of rotatable members. The plurality of rotatable members are positioned to form a transport path, and through contact with the imaging material, are configured to move the imaging material through the oven along the transport path. At least one of the rotatable members includes an internal heater such that the at least one rotatable member heats the imaging material as the imaging material moves along the transport path. An internal heater is controllable to provide an amount of thermal energy based on processing parameters associated with the imaging material.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 22, 2005
    Inventors: Duane Preszler, Brian Johnson
  • Publication number: 20050218138
    Abstract: A preheat chamber for conditioning an imaging material having a conditioning threshold temperature and a developing threshold temperature. The preheat chamber includes a chamber housing and a heating system. The heating system is configured to heat imaging material to a desired conditioning temperature above the conditioning threshold temperature and below the developing threshold temperature as the imaging material is moved through the chamber housing.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 6, 2005
    Inventors: Kent Struble, Duane Preszler
  • Patent number: 6146028
    Abstract: An apparatus and method for cooling a thermally processed, imaging material which has been heated to a first temperature by a thermal processor is disclosed. The cooling apparatus includes a cooling article, on which the imaging material rides after the imaging material exits the thermal processor, and an imaging material transport mechanism. The cooling article is at a lower temperature than the first temperature to cool the imaging material. The transport mechanism conveys the imaging material over the cooling article. The imaging material transport mechanism includes a first roller, a second roller and a displacement mechanism. The displacement mechanism effects relative movement between the first and second rollers between a first position and a second position. In the first position, the first and second rollers engage the imaging material to convey the imaging material over the cooling article.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: November 14, 2000
    Assignee: Eastman Kodak Company
    Inventor: Duane A. Preszler
  • Patent number: 6114660
    Abstract: A thermal processor for a thermally developable imaging element including a movable member having a heated surface and a plurality of contact flaps biased toward the heated surface of the member. The plurality of contact flaps can be located immediately adjacent each other and the heated surface and the plurality of contact flaps can be positioned to receive the imaging element therebetween.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: September 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: Eric J. Donaldson, Duane A. Preszler
  • Patent number: 6041516
    Abstract: An article for cooling an imaging material which has been heated to a first temperature by a thermal processor. The article includes a first cooling section on which the imaging material rides after the imaging material exits the thermal processor. The first cooling section is at a lower temperature than the first temperature. The first cooling section has a curved shape such that the imaging material is curved when riding on and being cooled by the first cooling section.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: March 28, 2000
    Assignee: Minnesota Mining & Manufacturing
    Inventors: Duane A. Preszler, Kent R. Struble, David J. McDaniel, George G. Lunde
  • Patent number: 5869806
    Abstract: A thermal processor and method for using the same which is particularly useful for developing a sheet of imaging material, such as photothermographic film. The thermal processor including means for heating the imaging material which include a plurality of heated surfaces within the thermal processor. The thermal processor also includes means for transporting the imaging material through the thermal processor and means for bending the imaging material a plurality of times to have a plurality of curvatures and for positioning the imaging material adjacent to the plurality of heated surfaces when the imaging material is heated by the heating means.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: February 9, 1999
    Assignee: Imation Corp.
    Inventors: Kent R. Struble, David J. McDaniel, Duane A. Preszler, George G. Lunde
  • Patent number: 5869807
    Abstract: A thermal processor particularly useful for developing a sheet of imaging material, such as photothermographic film. A thermal processor useful for thermally developing an image in an imaging material. At least a first roller and a second roller are positioned to contact the imaging material when the imaging material is transported into the thermal processor. A first heating means includes first and second curved, heated portions which wrap around a first circumferential portion of the first roller and the second roller to heat these rollers.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: February 9, 1999
    Assignee: Imation Corp.
    Inventors: Kent R. Struble, David J. McDaniel, Duane A. Preszler
  • Patent number: 5849388
    Abstract: An article for cooling an imaging material which has been heated to a first temperature by a thermal processor. The article includes a first cooling section on which the imaging material rides after the imaging material exits the thermal processor. The first cooling section is at a lower temperature than the first temperature. The first cooling section has a curved shape such that the imaging material is curved when riding on and being cooled by the first cooling section.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: December 15, 1998
    Assignee: Imation Corp.
    Inventors: Duane A. Preszler, Kent R. Struble, David J. McDaniel, George G. Lunde
  • Patent number: 5293913
    Abstract: The system ensures the proper placement of bottles which deliver material to a system. The system prevents male components from being mounted on incorrect female components. The male components can be tubes, and the female components can be covers which fit on the openings of bottles. A first key is formed on a first male component and a complementarily-shaped first keyway is formed on a first female component. Additional male and female component pairs have similar key-keyway pairs. Each key and each keyway includes first and second projections. The first projection is located in a reference position, and the second projection is located a predetermined distance from the reference position. This distance for each component pair is selected to identify the particular component pair.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: March 15, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Duane A. Preszler
  • Patent number: 5255056
    Abstract: A clamping and tensioning system for securing a sheet of photoconductor film to an outer circumferential surface of a carrier drum includes a clamp rod mounted to the carrier drum by first and second mounting blocks. The first and second mounting blocks include elongated slots that allow the clamp rod to rotate about its longitudinal axis and further permit linear radial movement of the clamp rod with respect to the carrier drum. The clamp rod includes mounting pins and spring tabs that engage leading and trailing edges of the photoconductor film. The leading and trailing edges of the photoconductor film are releasibly clamped to the clamp rod by a clamp bar. Leaf spring elements associated with the first and second mounting blocks bias the clamp rod radially inward to a first position wherein the photoconductor film extends loosely about the outer surface of the carrier drum.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: October 19, 1993
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Duane A. Preszler, Donald L. Knutson, Lawrence M. Lucking
  • Patent number: 5053820
    Abstract: A drive system for positioning any one of a plurality of toner developing modules relative to a photoconductor drum of an electrographic printer includes an indexing assembly having a chain drive mechanism. The chain drive mechanism includes a motor driven tow bar that is configured to releasably engage a tow hook mounted to a movable toner cart. The toner cart includes a developer rack that supports the plurality of developing modules. The drive system further includes a lift assembly that is configured to engage any one of developing modules and move it away from the rack to a developing position adjacent the photoconductor drum and back to the developer rack. The lift assembly includes a pair of lift arms, each of which is defined by a four bar linkage. The lift arms include hook assemblies that are configured to engage lift pins mounted on opposite ends of the developing modules. Each hook assembly includes a first centering member that supports a movable spring biased second centering member.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: October 1, 1991
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Duane A. Preszler, Gregory L. Zwadlo