Mechanical lock-out for preventing tape cartridge insertion into

Details Mechanical lock-out for preventing tape cartridge insertion into Mechanical lock-out for preventing tape cartridge insertion into

1994-03-16

1996-03-12

Darling, John P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

2423524, G11B 23087

Patent

active

054979552

ABSTRACT:
A guidance channel for a tape cartridge and a matching guide for a tape drive chassis to prevent a new design cartridge from being inserted into an old design drive but permitting new design drives to accept new design cartridges or old design cartridges. The cartridge guidance channel is wide at the front of the tape cartridge and narrow at the back of the tape cartridge. Tape cartridges having a narrow channel at the back end cannot be inserted into a drive chassis having a guide with a uniform wide width. The drive chassis guide is narrow at the front and wide at the back. The drive chassis guide can mate with tape cartridge channels having a uniform wide width or with tape cartridge channels having a narrow channel at the back end.

REFERENCES:
patent: 3971071 (1976-07-01), Urayama
patent: 4636903 (1987-01-01), Rudi
patent: 4898338 (1990-02-01), Oishi
patent: 5161079 (1992-11-01), Ohshima et al.
patent: 5240200 (1993-08-01), Nishimura et al.
patent: 5348243 (1994-09-01), Ohmachi et al.
Westlake Technology Corporation et al, Wide Tape Lockout Proposals Feb. 1993.
3rd Draft, Proposed American National Standard--Unrecorded Tape Mini-Cartridge for Information Interchange, (ASCX3 Project No. 553), Prepared by Technical Committee X3B5 of Accredited Standards Committee X3, Oct. 1987.
2nd Draft, Proposed American National Standard--Unrecorded Magnetic Tape Mini-Cartridge for Information Interchange, Prepared by Technical Committee X3B5 of Accredited Standards Committee X3, Oct. 1987.
Alan J. Richards, "Mini Data Cartridge: A Convincing Alternative for Low-Cost, Removable Storage", Hewlett-Packard Journal, May 1976, pp. 6-14.

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