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. 25, 1982
Filed:
Jun. 24, 1980
Applicant:
Inventors:
R Fred Pfost, Los Altos, CA (US);
Chester W Newell, San Jose, CA (US);
Assignee:
Newell Research Corporation, Saratoga, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; A46B / ;
U.S. Cl.
CPC ...
360137 ; 152565 ;
Abstract
A tape cleaner head that has an arcuate surface around which tape is wrapped. The body of the cleaning head has an opening formed therein, the opening being shaped so as to form first and second knife edges at a point where the arcuate surface is in contact with the tape. The knife edges provide scraping surfaces to the tape regardless of the direction of travel of the tape over the cleaning head to thereby remove foreign particles from the tape surface to prevent signal disturbance and form a cavity to entrap the particles and remove them from the system.