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. 04, 1996
Filed:
Mar. 06, 1995
Applicant:
Inventor:
Dean R Johnson, Columbia, MD (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ; D21G / ;
U.S. Cl.
CPC ...
100 74 ; 100102 ; 1001 / ;
Abstract
A method and apparatus are disclosed for uniformly applying a metered film of liquid to one or both surfaces of a web of paper, paperboard or the like at a waterbox calender to achieve enhanced finishing with minimal loss of caliper. For this purpose, a liquid metering element is adjustably mounted on a conventional waterbox associated with the calender, for precisely controlling the thickness and uniformity of a liquid film applied to the calender roll. The liquid film is subsequently transferred to the web at a transfer nip of the waterbox calender.