Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
A. Ahlstrom Patents
Assignee:
A. Ahlstrom
Address:
Noormarkku, FI
No. of patents:
3
Patents:












Patent Number Title Of Patent Date Issued
5319902 Mass tower and method of making the same June 14, 1994
A mass tower for medium or high consistency fiber suspension includes a vertically elongated circumferential side wall defining a space for receiving the fiber suspension. The bottom portion of the mass tower is filled with a material in an amount and of sufficient strength, preferably
5279709 Method and apparatus for improving the control and treatment of fiber suspension flow January 18, 1994
A method and apparatus for controlling the flow of a fiber suspension having a direction of flow and a consistency from 5-25% including a treatment chamber having an axis extending in the direction of flow of the fiber suspension, a suspension inlet and a suspension outlet opposite the
4953607 Multistage evaporating system September 4, 1990
A thermal system includes a plurality of heat exchangers in series and the same number of flash tanks in series is interposed between two subsequent effects of a multiple effect evaporating system for sulfate black liquor. The liquor is indirectly heated in the heat exchangers by vapor p

 
 
  Recently Added Patents
Digital photographing apparatus
(4938
Victim port-based design for test area overhead reduction in multiport latch-based memories
Release layer
Local access to data while roaming with a mobile telephony device
System and method for video encoding
Binary-to-gray converting circuits and gray code counter including the same
  Randomly Featured Patents
Electric melting furnace with partitioned melting cavity for solidifying highly radioactive waste in glass
Process for preparing phenyl-acetic acid esters
Recording apparatus and method, and disk producing method
Chemical derivatization of silica coated fullerenes and use of derivatized silica coated fullerenes
Method of dewatering brown coal
Multi-voltage vehicle electric system
Method of producing milk factor
Method of determining a clean propeller pressure signal from a propeller/engine exhaust combined signal measured in flight with a microphone arranged on a propeller-driven aircraft
Conditioning shampoo compositions containing select hair conditioning esters
Fully rated contact system having normally open contact and normally closed contacts