Tape drive capstan

Details Tape drive capstan Tape drive capstan

1981-09-02

1983-04-05

Christian, Leonard D.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

With drive means

226190, 226193, B65H 1722

Patent

active

043788998

ABSTRACT:
A tape drive capstan has a porous ceramic matrix in the form of a cylindrical shell using spherical ceramic particles bonded together to form a network of interstitial pores which are substantially uniform in size and interconnected. A urethane elastomer is impregnated into the pores to form a tape driving surface on the outside surface of the cylinder. The outer surface of the capstan is finish-ground to an outside diameter suitable for use in a tape drive apparatus. The particles occupy approximately 70% of the internal volume of the shell and the elastomer occupies the remaining 30%. The shell is attached by an epoxy to an outside surface of a drive shaft suitable for driving the capstan.

REFERENCES:
patent: 3499998 (1970-03-01), Tanigawa et al.
patent: 3524607 (1970-08-01), Furst et al.
patent: 3612376 (1971-10-01), Johnson
patent: 3847260 (1974-11-01), Fowler

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