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:
Mar. 21, 2006
Filed:
Oct. 09, 2001
Applicants:
David T. Hoge, Westminister, CO (US);
William J. Vanderheyden, Loveland, CO (US);
Inventors:
David T. Hoge, Westminister, CO (US);
William J. Vanderheyden, Loveland, CO (US);
Assignee:
Quantum Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 23/107 (2006.01); G11B 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The tape cartridge improved boss door provides a sleeve between the lower boss for the torsion spring to rotate around to decrease the stress applied to the top coil of the torsion spring. An improved catch contacts the top leg of the torsion spring at a point distant from the torsion spring coils to further reduce the force applied to the torsion spring and the frictional drag as the torsion spring rotates around the sleeve, thus decreasing the failure rate of the tape cartridge due to premature failure of the torsion spring.