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.

Date of Patent:
Feb. 29, 2000

Filed:

Mar. 11, 1999
Applicant:
Inventors:

John A Neun, Clifton Park, NY (US);

Jeffrey P Bachand, Queensbury, NY (US);

Keith Carlton, Glens Falls, NY (US);

Daniel Grogan, Greenwich, NY (US);

Assignee:

Thermo Fibertek Inc., Waltham, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F / ;
U.S. Cl.
CPC ...
162352 ; 162354 ; 162374 ;
Abstract

A papermaking apparatus such as a Fourdrinier table which includes a long blade and a trail blade. In the first aspect of the invention, the long blade includes an upper undulated surface with vents passing from the upper undulated surface to the lower surface of the long blade which is at substantially atmospheric pressure. In the second aspect of the invention, the trail blade includes an elevator-type device for adjusting the vertical position of the trail blade. In a third aspect of the invention, a single elevator is used to adjust the angle of the blade, the blade is provided as a modular or multiple-piece design, mounting buttons are used to engage slots of T-shaped cross section in the blade and/or ceramic inserts are included at wear points.


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