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:
Feb. 18, 1992
Filed:
Dec. 18, 1989
Vincent P Teuber, St. Paul, MN (US);
Ramon F Hegel, St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
The present invention concerns a magnetic tape cassette housing comprising a polymeric cassette box having an interior surface. The interior surface of the cassette box has been irradiated with an amount of ultraviolet radiation sufficient to impart a priming effect to the interior surface of the cassette box. A wear pad is adhered to the interior surface of the cassette box. The wear pad comprises a low-friction, wear-resistant polyolefin sheet. The wear pad also comprises a polyamide adhesive layer coated on one side of the polyolefin sheet and adhering the polyolefin sheet to the interior surface of the cassette box. In another aspect, the present invention concerns a method of applying a polyolefin sheet to an interior surface of a polymeric cassette box.