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. 08, 2001
Filed:
Jan. 19, 2000
Applicant:
Inventor:
Donald Stanley, San Diego, CA (US);
Assignee:
Verbatim Corporation, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 2/826 ;
U.S. Cl.
CPC ...
B21D 2/826 ;
Abstract
Base plates for magnetic data tape cartridges, are initially formed from roll stock of sheet material and are processed to form apertures to receive press-fitting tape guides and pins. The base plates are stacked in orientations that inhibit alignment of apertures, and the stack of base plates is heated at elevated temperature for a substantial time interval while simultaneously being pressed between plane parallel dies to relieve internal stresses and assure planarity within close tolerance limits of the base plates and the regions around the apertures.