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. 26, 1996
Filed:
Jul. 21, 1994
Applicant:
Inventor:
Michael E McAleavey, San Jose, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
2424171 ; 2424181 ; 2424206 ; 226118 ;
Abstract
An apparatus for controlling tension in a web includes devices such as unwinding and calendar or wind-up rollers for supporting opposite ends of the web. A pressure region is formed between the opposite ends of the web adjacent a first side of the web. The pressure region is at a lower pressure than ambient pressure, such that the web is urged in a direction of the pressure region. The web supported at its opposite ends by the supporting devices is placed in tension in an amount corresponding to the pressure of the pressure region.