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:
May. 17, 1988
Filed:
Jun. 28, 1984
Winfried L Peeters, Eindhoven, NL;
Johannes J Ponjee, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The magnetic head according to the invention has a magnetic core (1, 2) with pole tips (3, 4) which limit a gap (5) which is filled with a synthetic resin chosen from the group comprising epoxy resins, acrylic ester resins and polyester resins as a non-magnetizable material which adheres the pole tips to each other. The gap has a length of at most 0.5 .mu.m. A modifier may be used at the interfaces between the synthetic resin and the pole tips (3, 4) to further increase the tensile strength. The magnetic head is manufactured by applying to a moulding (1) of magnetizable material a solution of synthetic resin, by rotating the moulding about an axis at right angles to the coated surface and by placing a second moulding of magnetizable material (2) against it and curing the synthetic resin under pressure at an elevated temperature.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile