John A Mccloud

US Patent:

46987010, Oct 6, 1987

Filed:

Apr 4, 1986

Appl. No.:

6/848091

Inventors:

John E. Gantzhorn - Hockessin DE
John W. McCloud - Elkton MD
Robert O. Uhler - Malvern PA

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

G11B 586

US Classification:

360 16

Abstract:

A process and equipment is disclosed that is capable of duplicating magnetic tapes at speeds higher than 2. 5 meters/second. Tape surfaces are selected that have sufficient roughness to readily permit air to bleed from between surfaces as they are held together by air pressure during the duplication process.

US Patent:

48148997, Mar 21, 1989

Filed:

Sep 21, 1987

Appl. No.:

7/096962

Inventors:

John E. Gantzhorn - Hockessin DE
John W. McCloud - Elkton MD
Koichi Sota - Tokyo, JP
Jun Taniguchi - Tokyo, JP

Assignee:

Otari Electric Company, Ltd. - Tokyo

International Classification:

G11B 586

US Classification:

360 16

Abstract:

A tape transport for driving a continuous master tape and a copy tape through a tape contact printing station at a very high speed. The master tape has a prerecorded signal the reverse image of which is transferred onto the copy tape by the tape contact printing station. The tape transport enables the master and copy tapes to maintain contact and registration with the required degree of accuracy to produce an acceptable signal transfer which generates a high quality video signal for use in home video cassette recorders and viewing equipment.