Patents Assigned to 3M Innovative Porperties Company
  • Tape cassette for cleaning VCR heads and transport components
    Patent number: 6256166
    Abstract: A cassette having a leader and recordable tape which cleans the various components of the tape path in videocassette recorders by dry scrubbing. Interactive diagnostic and instructional material is recorded on the tape to instruct the operator about the cleaning operation to enable the operator to evaluate progress of the head cleaning operation, and to program the maintenance protocol of head cleaning cycles relative to capstan cleaning cycles.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 3, 2001
    Assignee: 3M Innovative Porperties Company
    Inventors: Robert D. DeMaster, Alexander R. Mitka, John V. Nowicki, Alexander S. Sinclair, Richard E. Skare, Mark W. Weavers