Patents by Inventor John M. Coval

John M. Coval 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).

  • Pinch quill, apparatus, and film winding method
    Publication number: 20030190165
    Abstract: A pinch quill has a shank and a core and sheath apparatus. The core is rotatable about a longitudinal axis. The core has a recess sector and an adjoining recess sector. The chock sector has a greater radial dimension than the recess sector. The sheath is mounted coaxially over the core. The sheath is rotatable with the core about the axis. The sheath has an outer face, an inner face, and a longitudinal slot extending between the faces. The slot narrows to a throat at the inner face. The inner face includes a grip surface spaced apart from the throat. The grip surface is longitudinally aligned with the sectors. The sheath is pivotable about the axis between first and second angular orientations relative to the core. The slot is radially aligned with the chock sector at the first angular orientation. The grip surface is radially aligned with the chock sector at an intermediate angular orientation relative to the core. The intermediate angular orientation is between the first and second angular orientations.
    Type: Application
    Filed: April 9, 2003
    Publication date: October 9, 2003
    Inventors: Stephen P. North, John M. Coval
  • Pinch quill, apparatus, and film winding method
    Patent number: 6622365
    Abstract: A pinch quill has a shank and a core and sheath apparatus. The core is rotatable about a longitudinal axis. The core has a recess sector and an adjoining recess sector. The chock sector has a greater radial dimension than the recess sector. The sheath is mounted coaxially over the core. The sheath is rotatable with the core about the axis. The sheath has an outer face, an inner face, and a longitudinal slot extending between the faces. The slot narrows to a throat at the inner face. The inner face includes a grip surface spaced apart from the throat. The grip surface is longitudinally aligned with the sectors. The sheath is pivotable about the axis between first and second angular orientations relative to the core. The slot is radially aligned with the chock sector at the first angular orientation. The grip surface is radially aligned with the chock sector at an intermediate angular orientation relative to the core. The intermediate angular orientation is between the first and second angular orientations.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 23, 2003
    Assignee: Eastman Kodak Company
    Inventors: Stephen P. North, John M. Coval
  • Pinch spools one-time use cameras apparatus and methods
    Patent number: 6491246
    Abstract: A pinch spool has a core rotatable about a longitudinal axis. The core has a recess sector and adjoining chock sector. The chock sector has a greater radial dimension than the recess sector. A sheath is mounted coaxially over the core and is rotatable with the core about the axis. The sheath has an outer face, an inner face, and a longitudinal slot extending between the faces. The-slot narrows to a throat at the inner face. The inner face includes a grip surface spaced apart from the throat. The grip surface is longitudinally aligned with the sectors. The sheath is pivotable about the axis between first and second angular orientations relative to the core. The slot is radially aligned with the chock sector at the first angular orientation. The grip surface is radially aligned with the chock sector at an intermediate angular orientation relative to the core. The intermediate angular orientation is between the first and second angular orientations.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: December 10, 2002
    Assignee: Eastman Kodak Company
    Inventors: Stephen P. North, John M. Coval
  • Pinch quill, apparatus, and film winding method
    Publication number: 20020050048
    Abstract: A pinch quill has a shank and a core and sheath apparatus. The core is rotatable about a longitudinal axis. The core has a recess sector and an adjoining recess sector. The chock sector has a greater radial dimension than the recess sector. The sheath is mounted coaxially over the core. The sheath is rotatable with the core about the axis. The sheath has an outer face, an inner face, and a longitudinal slot extending between the faces. The slot narrows to a throat at the inner face. The inner face includes a grip surface spaced apart from the throat. The grip surface is longitudinally aligned with the sectors. The sheath is pivotable about the axis between first and second angular orientations relative to the core. The slot is radially aligned with the chock sector at the first angular orientation. The grip surface is radially aligned with the chock sector at an intermediate angular orientation relative to the core. The intermediate angular orientation is between the first and second angular orientations.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 2, 2002
    Inventors: Stephen P. North, John M. Coval