Dynamic magnetic information storage or retrieval – Record transport with head moving during transducing – Tape record
Patent
1991-06-10
1993-02-02
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head moving during transducing
Tape record
360 95, 36013023, G11B 1560
Patent
active
051842580
ABSTRACT:
A helical scan magnetic tape recorder includes a rotary magnetic head scanner and a received magnetic tape cassette including spaced coplanar supply and take-up reels having magnetic tape spooled on the reels with a span of magnetic tape extending between the reels. Supply and take-up vacuum cavities are located contiguous to and on respective opposite sides of the scanner. Supply and take-up capstans are spaced from the rotary head scanner located in a tape transport path between the vacuum cavities and the tape cassette. Magnetic tape is initially removed from the cassette and moved to a tape vacuum loading position where it partially contacts the rotary head scanner, by a mechanical threading device. Thereafter, vacuum is applied to the vacuum cavities to draw the tape into contact with the vacuum cavities to substantially wrap the tape around the rotary head scanner. The supply and take-up capstans are rotated during vacuum threading to assist drawing the tape into the vacuum cavities.
REFERENCES:
patent: 2952010 (1960-09-01), Demer et al.
patent: 3134527 (1964-05-01), Willis
patent: 3134528 (1964-05-01), Dickey
patent: 3674942 (1972-07-01), Sugaya et al.
patent: 3940791 (1976-02-01), Kayan et al.
patent: 4050090 (1977-09-01), Kollar
patent: 4259700 (1981-03-01), Gause et al.
patent: 4413293 (1983-11-01), Hathaway
patent: 4541024 (1985-09-01), Sieben
patent: 4620678 (1986-11-01), Kumakura et al.
patent: 4642706 (1987-02-01), Vollmann et al.
patent: 4763210 (1988-08-01), Grant
patent: 4772969 (1988-09-01), Grant
patent: 4779150 (1988-10-01), Grant
patent: 5003424 (1991-03-01), Grant
IBM/TDB vol. 12, No. 6, Nov. 1969, pp. 808-809, "Automatic Threading of Web Material" by R. A. Johnson.
Grant Frederic F.
Maxey Alexander R.
Piarulli Vincent J.
Ryerson Robert
Datatape Incorporated
Noval William F.
Wolff John H.
LandOfFree
Helical scan magnetic tape recorder with capstan assisted vacuum does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Helical scan magnetic tape recorder with capstan assisted vacuum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helical scan magnetic tape recorder with capstan assisted vacuum will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-10525