|Publication number||UST915016 I4|
|Publication date||Oct 30, 1973|
|Filing date||Apr 26, 1973|
|Priority date||Apr 26, 1973|
|Publication number||US T915016 I4, US T915016I4, US-I4-T915016, UST915016 I4, UST915016I4|
|Export Citation||BiBTeX, EndNote, RefMan|
|External Links: USPTO, USPTO Assignment, Espacenet|
DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. m The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The dies of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED OCTOBER 30, 1973 T915,016 BIDIRECTIONAL MAGNETIC HEAD Tseng K. Chow and Arthur B. Wills, Boulder, Colo.,
assignors to International Business Machines Corporation, Armonk, NY. Continuation of abandoned application Ser. No. 179,866, Sept. 13, 1971. This application Apr. 26, 1973, Ser.
Int. Cl. Gllb 5/26 U.S. Cl. 340174.1 F 1 Sheet Drawing. 10 Pages Specification r 1 CKNYER 0F 7 ENTER 0F READ RADIUS i2 IRITE minus I! REiDCEIlEil CENiEfiSOF mm ADlllS SPACIKH3 w smmc 20 mu m orrsn 2ih-IRITE GAP orrssr 22 mo GAPARO 10-44 vmnz BAPARH9 mu m: commits--4 FIRITETAPECONTACTARHT Oct. 30, 1973 TSENG CHQW ETAL T915,016
BIDIRECTIONAL MAGNETIC HEAD Original Filed Sept. 13, 1971 1 CENTEROF CENTER OF READ RADIUS 42 WRITE RADIUS 13 1* READCENTER i CENTERS 0F OFWRAPM RADIUS SPACING 25 j J GAPSPACING 20 READGAPOFFSET24 WRITE GAPOFFSET 22 READGAPARC18-H WRITEGAPARC19 READ TAPE comer ARC 46' i i WRITE TAPE CONTACT ARC 47'