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:
Oct. 15, 2002
Filed:
Mar. 19, 1999
Applicant:
Inventor:
Luis Fernando Cabrera y Lopez Caram, Cuernavaca, MX;
Assignee:
Smurfit Carton y Papel de Mexico S.A. de C.V., Polanco, MX;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F 1/04 ; D21F 1/60 ;
U.S. Cl.
CPC ...
D21F 1/04 ; D21F 1/60 ;
Abstract
A cylinder former having a variable hydraulic pulse whilst drainage, for use in papermaking comprising a drainage means comprising a cylinder mould and a contoured member adjacent the cylinder mould having a plurality of hills and valleys which force entrained liquid through the fiber suspension forming on the cylinder mould so as to improve sheet formation. A baffle is provided in the discharge portion of the former to prevent stock build-up therein.