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. 31, 1987
Filed:
May. 07, 1985
Applicant:
Inventor:
Gunnar Wennerberg, Cupertino, CA (US);
Assignee:
Measurex Corporation, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ; B30B / ;
U.S. Cl.
CPC ...
100 38 ; 100 47 ; 100 / ; 100168 ; 1001 / ; 2911 / ; 219 1041 ; 219354 ; 219470 ; 34 25 ; 34 41 ; 169-5 ; 169 46 ; 169 54 ;
Abstract
The present invention is directed toward a controller for controlling local calender roll diameters by directing temperature controlled fluid against selected slices of a rotating calender roll. The calender roll has a diameter which responds to changes in temperature. Therefore, thermal expansion or contraction, resulting from localized heating or cooling of the calender roll by the temperature controlled fluid, corrects local non-uniformities in the spacing between cooperating calender rolls. The invention conserves energy by recirculating the temperature controlled air.