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US 4,789,915 AGranted
Tape cartridge brake
AssigneeHewlett-Packard Company
InventorGeorge M. Clifford, Jr.
Life of this patent
Estimating the term…
Abstract
A tape cartridge containing a pair of spools between which tape is fed and containing a brake that can stop rotation of the spools when no power is being applied to feed the tape. A passive mechanical embodiment is shown in which tension in the tape is used to release the brake.
Claims7
A tape cartridge comprising:
- a tape;
- a pair of storage spools between which the tape is fed;
- a brake for preventing rotation or both spools;
- and
- means for releasing the brake at a first of said spools when power is applied to a second of said spools to feed the tape from the first spool to the second spool and for releasing the brake at the second spool when power is applied to the first spool to feed the tape from the second spool to the first spool, whereby said brake keeps the tape taut for tape feed in both the direction from the first spool to the second spool and in the direction from the second spool to the first spool.
2 more elements
Dependencies are inferred from the claim text.