Title: Multi-ribbon cassette and ribbon drive

Abstract: A cassette contains a pair of endless printing ribbons on separate spools, each ribbon having an independent drive with a mechanism provided to enable shifting from one drive to the other, thereby permitting selection of one or the other ribbon.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Miller, Harry R. (Trumansburg, NY, US)
Kumpf, Michael S. (Dryden, NY, US)

Application Number: 580265
Filing Date: 1975-06-02
Publication_date: 1976-12-07
Assignee: NCR Corporation (Dayton, OH)
Primary Class(es): 400/195 400/196, 400/208.1, 400/229, 400/235.1, D18/12
Other Classes:
US Patent Ref:

553909	Feb, 1896	Heath et al.	197/21.
3311316	Mar, 1967	Williams	197/168.
3532204	Oct, 1970	Sasaki	197/82.
3695410	Oct, 1972	Kapp	197/156.
3726212	Apr, 1973	Combs	197/156.
3758012	Sep, 1973	Bonner et al.	197/151.
3871507	Mar, 1975	Perry et al.	197/168.
3904017	Sep, 1975	Frechette	197/170.

Other Refs:
Primary Examiner: Burr, Edgar S.
Assistant Examiner: Sewell, Paul T.
Attorney: Cavender; J. T., Hawk, Jr.; Wilbert, Muckenthaler; George J.