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Richard O Laakso, 7422 Oakwood Dr, Glens Falls, NY 12804

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22 Oakwood Dr, Queensbury, NY 12804   

Glens Falls, NY   

Spring Hill, FL   

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Resumes

Richard Laakso Photo 1

Richard Laakso

Location:
Glens Falls, New York Area
Industry:
Paper & Forest Products
Richard Laakso Photo 2

Richard Laakso

Publications

Us Patents

Chip Feeding To A Comminuted Cellulosic Fibrous Material Treatment Vessel

US Patent:
6368453, Apr 9, 2002
Filed:
Mar 7, 2000
Appl. No.:
09/520761
Inventors:
Auvo K. Kettunen - Neuvoton, FI
Richard O. Laakso - Queensbury NY
C. Bertil Stromberg - Glens Falls NY
J. Robert Prough - Glens Falls NY
Jay J. Miele - Queensbury NY
Assignee:
Andritz Inc. - Glens Falls NY
International Classification:
D21C 706
US Classification:
162 52, 162238, 162246, 162253
Abstract:
In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

Continuous Digester Having A Sectioned Top Separator With Multiple Liquor Extraction Ports

US Patent:
6582554, Jun 24, 2003
Filed:
May 13, 2002
Appl. No.:
10/142944
Inventors:
Kaj O. Henricson - Kotka, FI
C. Bertil Stromberg - Glens Falls NY
Richard Laakso - Queensbury NY
John F. Bolles - Queensbury NY
Keith P. Vogel - Queensbury NY
Patrick J. Sullivan - Argyle NY
Assignee:
Andritz Inc. - Glens Falls NY
International Classification:
D21C 326
US Classification:
162 17, 162 19, 162 52, 162232, 162237, 162239, 162243
Abstract:
A method is disclosed for extracting liquor from a cellulose slurry for a continuous digester comprising the steps of: providing the cellulose slurry of liquor and chips of cellulose fiber material to a separator; extracting a first stream of liquor from the separator; extracting a second stream of liquor from the separator, where the second stream has an effective alkali (EA) concentration greater than the EA concentration of the first steam; outputting the first stream from the separator and outputting the second stream from the separator separately from the second stream, and outputting a condensed slurry from the separator to a digester vessel.

Dissolved Solids Control In Pulp Production

US Patent:
2001000, May 31, 2001
Filed:
Jan 19, 2001
Appl. No.:
09/764297
Inventors:
Bruno Marcoccia - South Glens Falls NY, US
J. Prough - Queensbury NY, US
Richard Laakso - Queensbury NY, US
Joseph Phillips - Queensbury NY, US
Rolf Ryham - Roswell GA, US
Jan Richardsen - Glens Falls NY, US
R. Chasse - Queensbury NY, US
Assignee:
Andritz Ahlstrom, Inc.
International Classification:
D21C003/02
US Classification:
162/042000, 162/061000, 162/082000
Abstract:
Kraft pulp of increased strength and bleachability may be produced with decreased consumption of effective alkali, and at a lower H factor, by keeping the dissolved organic material (DOM) concentration low substantially through the entire kraft cook, including by extracting high DOM liquid from at least one part of a continuous digester and replacing it with much lower level DOM liquid. Existing pulp mills having two-vessel hydraulic, one-vessel hydraulic, or other systems may be retrofit to provide for extractions and additions of low DOM dilution liquor (including substantially DOM-free white liquor). Also, commercial size batch digesters (8 tons per day of pulp or more) can be operated with low DOM liquor to produce increased strength pulp. Using dilution with low DOM liquor also results in reduced H factor and effective alkali consumption, and increased bleachability.

Chip Feeding To A Comminuted Cellulosic Fibrous Material Treatment Vessel

US Patent:
2001002, Oct 4, 2001
Filed:
Jun 4, 2001
Appl. No.:
09/871970
Inventors:
Auvo Kettunen - Neuvoton, FI
Richard Laakso - Queensbury NY, US
C. Stromberg - Glens Falls NY, US
J. Prough - Glens Falls NY, US
Jay Miele - Queensbury NY, US
Assignee:
Andritz-Ahlstrom Inc.
International Classification:
D21C003/26
D21C007/06
US Classification:
162/019000, 162/052000
Abstract:
In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

Chip Feeding To A Comminuted Cellulosic Fibrous Material Treatment Vessel

US Patent:
2003008, May 15, 2003
Filed:
Dec 18, 2002
Appl. No.:
10/321424
Inventors:
Auvo Kettunen - Neuvoton, FI
Richard Laakso - Queensbury NY, US
C. Stromberg - Glens Falls NY, US
J. Prough - Glens Falls NY, US
Jay Miele - Queensbury NY, US
Assignee:
Andritz, Inc.
International Classification:
D21C001/10
D21C003/26
D21C007/06
D21C007/08
US Classification:
162/019000, 162/052000, 162/246000, 162/068000, 162/242000
Abstract:
In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

Chip Feeding To A Comminuted Cellulosic Fibrous Material Treatment Vessel

US Patent:
2003008, May 15, 2003
Filed:
Dec 18, 2002
Appl. No.:
10/321428
Inventors:
Auvo Kettunen - Neuvoton, FI
Richard Laakso - Queensbury NY, US
C. Stromberg - Glens Falls NY, US
J. Prough - Glens Falls NY, US
Jay Miele - Queensbury NY, US
Assignee:
Andritz Inc.
International Classification:
D21C003/26
D21C007/14
D21C007/06
D21C007/08
D21C007/12
US Classification:
162/019000, 162/052000, 162/049000, 162/246000, 162/242000, 162/238000
Abstract:
In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

Chip Feeding To A Comminuted Cellulosic Fibrous Material Treatment Vessel

US Patent:
2003008, May 15, 2003
Filed:
Dec 18, 2002
Appl. No.:
10/321436
Inventors:
Auvo Kettunen - Neuvoton, FI
Richard Laakso - Queensbury NY, US
C. Stromberg - Glens Falls NY, US
J. Prough - Glens Falls NY, US
Jay Miele - Queensbury NY, US
Assignee:
Andritz Inc.
International Classification:
D21C003/26
D21C007/06
D21C007/08
US Classification:
162/019000, 162/052000, 162/246000, 162/238000
Abstract:
In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

Chip Feeding To A Comminuted Cellulosic Fibrous Material Treatment Vessel

US Patent:
2003008, May 15, 2003
Filed:
Dec 18, 2002
Appl. No.:
10/321439
Inventors:
Auvo Kettunen - Neuvoton, FI
Richard Laakso - Queensbury NY, US
C. Stromberg - Glens Falls NY, US
J. Prough - Glens Falls NY, US
Jay Miele - Queensbury NY, US
Assignee:
Andritz, Inc.
International Classification:
D21C003/26
D21C007/06
D21C007/08
D21C007/14
US Classification:
162/019000, 162/052000, 162/239000, 162/246000
Abstract:
In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

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