The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 1997
Filed:
Dec. 06, 1994
Edward L Packard, San Marcos, CA (US);
Other;
Abstract
A process for manufacturing magnetic heads whereby a pair of separate coils are placed about the opposed legs of the magnetic loop core element with one coil comprising the read/write coil and the other coil being placed adjacent the gap in the core. During the removal of material from the core element to set the throat height at the gap thereof, a variable current signal is provided to the read/write coil while the other coil generates voltage pulses due to flux changes in the magnetic core element with the magnitude of such voltage pulses being used to monitor the removal process so that the correct throat height is set according to predetermined magnetic characteristics of the core element.