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. 02, 1987
Filed:
Jan. 08, 1986
Applicant:
Inventors:
Hans W Maurer, Highland, MD (US);
Hiawatha P Watkins, Columbia, MD (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ; B30B / ; D21F / ;
U.S. Cl.
CPC ...
162361 ; 162205 ; 162206 ; 1623601 ; 100161 ; 100168 ; 100169 ; 100176 ;
Abstract
A tandem calender is provided at the output end of a paper machine which includes two single stack nips in-line. The first nip is formed by a pair of steel rolls which are lightly loaded and the second nip is formed by a steel roll and a plastic covered roll which is loaded 2-10 times greater than the first nip.