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:
Jun. 22, 1982
Filed:
Jun. 24, 1980
R Fred Pfost, Los Altos, CA (US);
William E Seaman, Woodside, CA (US);
Chester W Newell, San Jose, CA (US);
Newell Research Corporation, Saratoga, CA (US);
Abstract
A web guide system wherein misalignment of take-up and supply rolls relative to a reference surface may be compensated without tape distortion by a crown pulley and an adjacent concave web guide. The concave web guide is a fixed, flangeless post about which the web is partially wrapped. The web tends to be self-centering in the concave curved portion of the guide. Tape is fed from a roll to the concave guide and then to the crown pulley of minimum radius which is mounted for axial as well as rotational motion. Pulley axial motion promotes equal edge tension and completes web self-alignment. Final axial alignment without edge pressure is accomplished by fixed tape edge-guides in the region of the head.