The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Robert D. DeMaster, Afton, MN (US);
Alexander R. Mitka, Roseville, MN (US);
John V. Nowicki, Oakdale, MN (US);
Alexander S. Sinclair, Twickenham, GB;
Richard E. Skare, Stillwater, MN (US);
Mark W. Weavers, Little Canada, MN (US);
Assignee:
3M Innovative Porperties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/10 ;
U.S. Cl.
CPC ...
G11B 5/10 ;
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.