Jason Incorporated

James T Muraski

A magnetic tape cassette reel spring having an elongated lamina of ferromagnetic steel including a base portion adapted to joined to a housing of the magnetic tape cassette and at least one leg portion extending obliquely out of the plane of the base along the longitudinal axis of the lamina, for resiliently engaging a reel of the magnetic tape cassette. The reel spring also includes an impervious coating disposed over an entire outer surface of the spring substantially enclosing and containing contamination from the spring.

Coated magnetic tape cassette spring

A magnetic tape cassette reel spring of ferromagnetic material such as mild steel with yield strength slightly greater than 100,000 psi coated with a impervious layer. Alloy steel and AISI constructional steels are also suitable. The coating inhibits contamination of the magnetic tape and may include nickel plate, zinc plate, lacquer, paint, varnish and polymer coatings. A method includes coating a steel sheet, slitting the sheet and stamping the spring configuration from the slit strips of the sheet.

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Gurney, IL, United States of America

James T Muraski