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Inventor: Serres; Alain
Address: Reims, FR
No. of patents: 10
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| RE38738 |
Cylindrical screen, particularly for paper pulp |
May 31, 2005 |
| Cylindrical screen, particularly for paper pulp, of the type comprising at least one filtering element (10) positioned between two flanges (1, 2) by means of a number of bars (3). The filtering element is composed by wires (10) placed side by side and held by rings (11). This filtering e |
| 7281631 |
Process for de-inking paper pulp and flotation cell used for this process |
October 16, 2007 |
| The cell includes an enclosure having, at the top, a main inlet for the pulp to be de-inked and, at the bottom, a main outlet for the de-inked pulp. The pulp from the top to the bottom, passes through successive stages provided with bubble passageways introduced into the lower portion |
| 6679384 |
Method and means for paper pulp filtering |
January 20, 2004 |
| Process for the filtration of paper pulp with a device that comprises a rotor and a stator; one of the two, filter (1), has perforations of slot or hole types, and the other, the backwashing element, includes means that are intended to generate pressure pulses that consist in combatting |
| 6338412 |
Cylindrical screen, particularly for paper pulp |
January 15, 2002 |
| Cylindrical screen, particularly for paper pulp, of the type comprising at least one filtering element (10) positioned between two flanges (1, 2) by means of a number of bars (3). The filtering element is composed by wires (10) placed side by side and held by rings (11). This filtering e |
| 6197153 |
Method for de-inking paper pulp from recycled paper |
March 6, 2001 |
| The method for de-inking paper pulp produced by the reduction to pulp, with water, of old papers of various qualities according to which a stream of air bubbles (C) is sent through the flow (E.sub.2, S.sub.2, E.sub.3, S.sub.3) of pulp at least once, is characterized by the fact that a |
| 5979665 |
Paper-pulp deinking method and equipment to implement this method |
November 9, 1999 |
| Equipment for deinking paper pulp, wherein the batch of pulp to be deinked is made to circulate to move from top to bottom whereas the air bubbles are introduced at least in the lower part and move from bottom to top, characterized in that the pulp descends from top to bottom while being |
| 5735472 |
Rotating drum comprising screening and mashing chambers for separating paper fibers and contamin |
April 7, 1998 |
| Method for separating paper fibers and contaminants for mixtures containing water, fibers, contaminants, paper or cardboard pellets, wherein the mixture is subjected firstly to a screening, secondly to a mashing and then thirdly to a further screening with addition of water, subsequent t |
| 5697503 |
Screening sieves, notably for paper pulp |
December 16, 1997 |
| Sieve with slots or holes, made from a U-shaped section, constituted by a stack of identical circles, each circle (1, 1') being made from a tapered U-shaped section of which the two ends are welded or mechanically connected to one another, characterized in that this stack of circles (1, |
| 5650044 |
Paper-pulp deinking method and equipment to implement this method |
July 22, 1997 |
| A method for deinking paper pulp, wherein the batch of pulp to be deinked is made to circulate to move from top to bottom whereas the air bubbles are introduced at least in the lower part and move from bottom to top, characterized in that the pulp descends from top to bottom while being |
| 5624609 |
Enhancements to the air injection devices in a paper pulp flow for de-inking thereof |
April 29, 1997 |
| An air injector for the foaming of paper pulp, comprised of a hollow cylindrical tube inside which is arranged a cylindrical bore (3) leading into a convergent portion and a divergent portion (2a, 2b, 2c), said cylindrical bore being occluded by a stopper fitted with holes (8) provid |
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