Patents Assigned to Ryan Plastics Ireland Limited
  • Patent number: 4941065
    Abstract: A cassette cleaner for a video player/recorder, comprising a cassette housing having a cleaning device for a capstan and pinch roller. There are separate cleaning pads for the capstan and pinch roller, mounted on resilient arms, and a cleaning ribbon extends between the two cleaning pads in a manner to be able to be engaged by the capstan and pinch roller. A shut off mechanism is provided so as to be operated by the player/recorder so as to shut off the player/recorder after a predetermined number of revolutions of a drive spindle of the player/recorder.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: July 10, 1990
    Assignee: Ryan Plastics Ireland Limited
    Inventor: Joseph F. Fritsch
  • Patent number: 4916564
    Abstract: Apparatus for cleaning the read/write head of a drive unit for a jacketted flexible magnetic disc comprises a thin substantially square jacket, having, in register on each side, a central aperture and a slot which extends radially from adjacent the central aperture in a direction towards and normal to the rear edge of the jacket. The jacket contains a double-sided cleaning element having a pair of opposite cleaning surfaces of which a portion of each is exposed by a respective slot. The cleaning surfaces comprise respective layers of cleaning material secured together via an intermediate layer of a material which is impermeable to magnetic head cleaning fluid.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: April 10, 1990
    Assignee: Ryan Plastics Ireland Limited
    Inventor: Joseph F. Fritsch
  • Patent number: 4622617
    Abstract: Apparatus for cleaning the read/write head of a drive unit for a jacketted flexible magnetic disc comprises a thin substantially square jacket, having, in register on each side, a central aperture and a slot which extends radially from adjacent the central aperture in a direction towards and normal to the rear edge of the jacket. The jacket contains a double-sided cleaning element having a pair of opposite cleaning surfaces of which a portion of each is exposed by a respective slot. The cleaning surfaces comprise respective layers of cleaning material secured together via an intermediate layer of a material which is impermeable to magnetic head cleaning fluid.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: November 11, 1986
    Assignee: Ryan Plastics Ireland Limited
    Inventor: Joseph F. Fritsch
  • Patent number: 4616284
    Abstract: A mechanism for intermittently wetting a cleaning tape contained within a tape cassette housing is located within the housing at a position along the tape path prior to the tape exit in the direction of forward motion of the tape. The mechanism comprises a star wheel rotatably mounted adjacent the inside surface of the cleaning tape whose arms are driven by friction with the tape to rotate the star wheel, and a lever pivotted adjacent the same surface of the tape as the star wheel, the lever being intermittently deflected in a first direction of rotation by engagement with successive arms of the star wheel as the star wheel rotates during forward motion of the tape.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: October 7, 1986
    Assignee: Ryan Plastics Ireland Limited
    Inventor: Joseph F. Fritsch