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:
Apr. 25, 1995
Filed:
Dec. 30, 1993
Peter D Doninelli, Morgan Hill, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A high speed tape transport cassette comprises a pair of spaced apart flangeless hubs and an access space between the hubs. On each side of the access space, there is mounted a cylindrical guide member which has a stationary flange at each end and a stationary central grooved portion between the flanges. The grooved surface comprises concave grooves extending in a direction transverse to the axis of the guide and providing a surface roughness average between 20 and 40 microinches. The tape extends in a tape transport path from one hub directly to and engaging the grooved central portion of one guide member and across the access opening directly to and engaging the grooved central portion of the other guide member and directly to the other hub. The guide members are the sole members in the cassette engaged by the tape in the tape transport path between the hubs. Each hub is provided with a cap of magnetically attractive material and is loosely mounted in the cassette for free axial movement between the top and bottom walls of the cassette.