Tape transport

Details Tape transport Tape transport

1977-05-19

1978-08-15

Stoner, Jr., Bruce H.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

With drive means

165128, 226187, 226194, B65H 1718

Patent

active

041066863

ABSTRACT:
A tape transport includes a fixed support for receiving a tape cartridge having a tape drive roller engaged with a bi-directional capstan. The capstan, together with a reversible capstan drive motor and a heat sink surrounding the motor, comprise an integral unit which is mounted to the cartridge support through biasing springs which enable the unit to pivot about its center of gravity relative to the support. The capstan, through its c.g. mount, applies a constant force to the tape drive roller indpendently of external forces acting on the tape drive unit. The electrical drive circuit for the capstan motor includes power transistors which are an integral part of the heat sink for maximizing use of the heat sink as a means for dissipating heat generated by operation of the capstan drive motor and power transistors.

REFERENCES:
patent: 2632641 (1953-03-01), Rice
patent: 2965819 (1960-12-01), Rosenbaum
patent: 3022454 (1962-02-01), Millis
patent: 3090574 (1963-05-01), Doncaster et al.
patent: 3125645 (1964-03-01), Cech
patent: 3383529 (1968-05-01), Baumann et al.
patent: 3486675 (1969-12-01), Krechman
patent: 3698615 (1972-10-01), Lace

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