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A HISTORY OF DORR-OLIVER
1904 Dorr Company founded by Dr John Van Norstrand Dorr 1872-1962 Began his career at 16 years of age working in the laboratories of Thomas Alva Edison
1907 Oliver Company founded by Dr Edwin Letz Oliver 1878-1955 A Californian from San Francisco and a graduate of the University of California
1914 The Sanitary District of Chicago installs a new Machine called a Dorr Clarifier
1916 The first DORRCOTM Suction Pumps are built
1919 Oliver sells the first Lime Mud Washer and enters the Pulp amp Paper industry Dorr develops the washer and slurry mixer
1920 Oliver sells the first Pulp Washer for washing Soda Pulp Dorr develops the Cane Juice Clarifier and sells the first one through a Representative in Havana Cuba
1921 Dorr develops the Olivitereg Centrifugal Pump
1922 Oliver sells the first Sewage Filter
1923 Dorr develops Rectangular Clarifiers for Sewage Treatment
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 dano connor f1 smidth com
wwwdorrolivereimcocom
ImlDTH
ORR-OLIVER EIMCO
1925 Oliver sell the first filter for Sugar Cane Mud to a mill in Hawaii Dorr develops Washing Tray Thickener and opens overseas offices in Paris and Berlin
1927 Dorr designs the Detritorreg for Sewage Degritting
1928 Develop and market the first Oliver-Campbell Cane Mud Filter for Sugar Processing Oliver acquires United Filter and with it the companies manufacturing facility in Hazleton PA
1931 Dorr and Oliver merge Dorr establishes a facility in The Hague Netherlands
1933 Dorr establishes representation in India
1934 Dorr and Oliver dissolve
1935 Dorr develops the Torq Thickener
1937 Oliver develops and markets the Precoat Filter Dorr develops a combination Washing Type Tray Thickener
1938 Dorr develops the Siaker
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 dano connornsmidthcom
wwwdorrolivereimcocom
1939 Oliver develops the ODSreg Air Operated Diaphragm Pump
1946 Dorr establishes representation in Venezuela
1947 Dorr-Oliver markets the WLF Sulzer Disintegrator First installation is BergenDumont NJ STP in 1948
1949 National Filter Media formed by consolidating two Smaller companies to manufacture and market Filter Media
1954 Dorr and Oliver merge for the second time
1955 Merrill Company acquired and adds the Mercoreg Centrifuge
1965 Dorr-Oliver market the Goratorreg under license From Neidl Germany First two prototypes of the GN series sold to Du Pont Washington WV Polyvinyl Butal plant for plastic laminate used in automobile safety glass One original unit replaced in Aug 2004
1968 Dorr-Oliver introduces the Cabletorqreg Thickener Curtis Wright acquires majority stock on Dorr-Oliver
19691970 ODSreg Spring Assist and Air Cylinder assist introduced to the market
1979 Curtis Wright completes acquisition of Dorr-Oliver
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 dano connorflsmidth com
wwwdorrolivereimcocom
R ElM 1981 Kennecott acquires Dorr-Oliver
Kennecott and SOHIO merge
1987 Contor Holdings a Canadian company acquires Dorr-Oliver and Keeler Boiler
April 1988
May 1995
Sep1999
Sep 2000
Nov 2002
Aug 2007
Leveraged buy-out by Dorr-Oliver management
Krause-Maffei Germany acquires Dorr-Oliver
GLampV Montreal acquires Dorr-Oliver
Hazleton PA manufacturing closed
GLampV purchases Eimco Salt Lake City UT Dorr-Oliver and Eimco are integrated
FLSmidth Minerals Denmark (Bethlehem PA North American Headquarters) acquires Dorr-Oliver Eimco
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 danoconnorll midthcom
wwwdorrolivereimcocom
HISTORICAL UPDATE
1904 -- John Van Norstrand founds Dorr Company
1907 -- Edwin Letz Oliver founds Oliver Company
1919 -- Oliver sells the first lime mud washer and enters the pulp and paper industry
1919 -- DOff develops the washer and slurry mixer
1920 -- Oliver sells the first pulp washer for washing soda pulp
1920 -- DOff develops the cane juice clarifier and sells the first one through a representative in Havana
1921 -- Oliver develops the Olivite Centrifugal Pump and begins marketing it
1922 -- Oliver sells the first sewage filters
1923 -- DOff develops rectangular clarifiers for sewage treatment
1925 -- Oliver sells the first filter for cane mud to a sugar mill in Hawaii
1925 -- DOff develops washing tray thickener and opens overseas offices in Paris and Berlin
1927 -- DOff designs Detritor for sewage degritting
1928 -- Oliver acquires United Filter and with it the companys principal manufacturing facility in Hazleton Pennsylvania Also develops and markets first Oliver-Campbell cane mud filter for sugar processing
1931 -- DOff establishes a facility in The Hague (now in Hoofddorp The Netherlands)
1931 -- DOff and Oliver merge for first time
1933 -- DOff establishes representation in India
1934 -- The merger is dissolved
HISTORICAL UPDATE continued
1935 -- Dorr develops the Torq Thickener
1937 -shy Oliver develops and markets the Precoat Filter
1937 -- Dorr develops a combination washing type tray thickener
1938 -- Dorr develops the slaker
1939 -shy Oliver develops and markets the ODSreg Pump (a diaphragm slurry pump)
1946 -- Dorr establishes representation in Venezuela
1947 -shy Dorr-Oliver markets the WLF Sulzer Disintegrator First installation BergenfieldlDumont NJ STP May 1948
1949 -shy National Filter Media Corporation formed by consolidating two smaller companies to manufacture and market filter media
1954 -- Dorr and Oliver companies merge for second time
1956 -- Merrill Company (Merco centrifugals) is acquired
1965 -shy Dorr-Oliver begins to market the Goratortrade under license from George Neidl First installation DuPonts Polyvinyl Butal plant for plastic laminate use in automobile safety glass
1968 -shy Dorr-Oliver introduces the Cabletorq Thickener
1968 -- Curtiss Wright acquires Majority ofDorr-Oliver stock
1969170 -shy Spring Assist and Air Cylinder Assist ODS Pumps are introduced
1979 -shy Curtiss-Wright completes acquisition ofDorr-Oliver stock
1981 -- Kennecott acquires Dorr-Oliver
1981 -- Kennecott and Sohio merge
2
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3
ImlDTH
ORR-OLIVER EIMCO
1925 Oliver sell the first filter for Sugar Cane Mud to a mill in Hawaii Dorr develops Washing Tray Thickener and opens overseas offices in Paris and Berlin
1927 Dorr designs the Detritorreg for Sewage Degritting
1928 Develop and market the first Oliver-Campbell Cane Mud Filter for Sugar Processing Oliver acquires United Filter and with it the companies manufacturing facility in Hazleton PA
1931 Dorr and Oliver merge Dorr establishes a facility in The Hague Netherlands
1933 Dorr establishes representation in India
1934 Dorr and Oliver dissolve
1935 Dorr develops the Torq Thickener
1937 Oliver develops and markets the Precoat Filter Dorr develops a combination Washing Type Tray Thickener
1938 Dorr develops the Siaker
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 dano connornsmidthcom
wwwdorrolivereimcocom
1939 Oliver develops the ODSreg Air Operated Diaphragm Pump
1946 Dorr establishes representation in Venezuela
1947 Dorr-Oliver markets the WLF Sulzer Disintegrator First installation is BergenDumont NJ STP in 1948
1949 National Filter Media formed by consolidating two Smaller companies to manufacture and market Filter Media
1954 Dorr and Oliver merge for the second time
1955 Merrill Company acquired and adds the Mercoreg Centrifuge
1965 Dorr-Oliver market the Goratorreg under license From Neidl Germany First two prototypes of the GN series sold to Du Pont Washington WV Polyvinyl Butal plant for plastic laminate used in automobile safety glass One original unit replaced in Aug 2004
1968 Dorr-Oliver introduces the Cabletorqreg Thickener Curtis Wright acquires majority stock on Dorr-Oliver
19691970 ODSreg Spring Assist and Air Cylinder assist introduced to the market
1979 Curtis Wright completes acquisition of Dorr-Oliver
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 dano connorflsmidth com
wwwdorrolivereimcocom
R ElM 1981 Kennecott acquires Dorr-Oliver
Kennecott and SOHIO merge
1987 Contor Holdings a Canadian company acquires Dorr-Oliver and Keeler Boiler
April 1988
May 1995
Sep1999
Sep 2000
Nov 2002
Aug 2007
Leveraged buy-out by Dorr-Oliver management
Krause-Maffei Germany acquires Dorr-Oliver
GLampV Montreal acquires Dorr-Oliver
Hazleton PA manufacturing closed
GLampV purchases Eimco Salt Lake City UT Dorr-Oliver and Eimco are integrated
FLSmidth Minerals Denmark (Bethlehem PA North American Headquarters) acquires Dorr-Oliver Eimco
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 danoconnorll midthcom
wwwdorrolivereimcocom
HISTORICAL UPDATE
1904 -- John Van Norstrand founds Dorr Company
1907 -- Edwin Letz Oliver founds Oliver Company
1919 -- Oliver sells the first lime mud washer and enters the pulp and paper industry
1919 -- DOff develops the washer and slurry mixer
1920 -- Oliver sells the first pulp washer for washing soda pulp
1920 -- DOff develops the cane juice clarifier and sells the first one through a representative in Havana
1921 -- Oliver develops the Olivite Centrifugal Pump and begins marketing it
1922 -- Oliver sells the first sewage filters
1923 -- DOff develops rectangular clarifiers for sewage treatment
1925 -- Oliver sells the first filter for cane mud to a sugar mill in Hawaii
1925 -- DOff develops washing tray thickener and opens overseas offices in Paris and Berlin
1927 -- DOff designs Detritor for sewage degritting
1928 -- Oliver acquires United Filter and with it the companys principal manufacturing facility in Hazleton Pennsylvania Also develops and markets first Oliver-Campbell cane mud filter for sugar processing
1931 -- DOff establishes a facility in The Hague (now in Hoofddorp The Netherlands)
1931 -- DOff and Oliver merge for first time
1933 -- DOff establishes representation in India
1934 -- The merger is dissolved
HISTORICAL UPDATE continued
1935 -- Dorr develops the Torq Thickener
1937 -shy Oliver develops and markets the Precoat Filter
1937 -- Dorr develops a combination washing type tray thickener
1938 -- Dorr develops the slaker
1939 -shy Oliver develops and markets the ODSreg Pump (a diaphragm slurry pump)
1946 -- Dorr establishes representation in Venezuela
1947 -shy Dorr-Oliver markets the WLF Sulzer Disintegrator First installation BergenfieldlDumont NJ STP May 1948
1949 -shy National Filter Media Corporation formed by consolidating two smaller companies to manufacture and market filter media
1954 -- Dorr and Oliver companies merge for second time
1956 -- Merrill Company (Merco centrifugals) is acquired
1965 -shy Dorr-Oliver begins to market the Goratortrade under license from George Neidl First installation DuPonts Polyvinyl Butal plant for plastic laminate use in automobile safety glass
1968 -shy Dorr-Oliver introduces the Cabletorq Thickener
1968 -- Curtiss Wright acquires Majority ofDorr-Oliver stock
1969170 -shy Spring Assist and Air Cylinder Assist ODS Pumps are introduced
1979 -shy Curtiss-Wright completes acquisition ofDorr-Oliver stock
1981 -- Kennecott acquires Dorr-Oliver
1981 -- Kennecott and Sohio merge
2
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3
1939 Oliver develops the ODSreg Air Operated Diaphragm Pump
1946 Dorr establishes representation in Venezuela
1947 Dorr-Oliver markets the WLF Sulzer Disintegrator First installation is BergenDumont NJ STP in 1948
1949 National Filter Media formed by consolidating two Smaller companies to manufacture and market Filter Media
1954 Dorr and Oliver merge for the second time
1955 Merrill Company acquired and adds the Mercoreg Centrifuge
1965 Dorr-Oliver market the Goratorreg under license From Neidl Germany First two prototypes of the GN series sold to Du Pont Washington WV Polyvinyl Butal plant for plastic laminate used in automobile safety glass One original unit replaced in Aug 2004
1968 Dorr-Oliver introduces the Cabletorqreg Thickener Curtis Wright acquires majority stock on Dorr-Oliver
19691970 ODSreg Spring Assist and Air Cylinder assist introduced to the market
1979 Curtis Wright completes acquisition of Dorr-Oliver
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 dano connorflsmidth com
wwwdorrolivereimcocom
R ElM 1981 Kennecott acquires Dorr-Oliver
Kennecott and SOHIO merge
1987 Contor Holdings a Canadian company acquires Dorr-Oliver and Keeler Boiler
April 1988
May 1995
Sep1999
Sep 2000
Nov 2002
Aug 2007
Leveraged buy-out by Dorr-Oliver management
Krause-Maffei Germany acquires Dorr-Oliver
GLampV Montreal acquires Dorr-Oliver
Hazleton PA manufacturing closed
GLampV purchases Eimco Salt Lake City UT Dorr-Oliver and Eimco are integrated
FLSmidth Minerals Denmark (Bethlehem PA North American Headquarters) acquires Dorr-Oliver Eimco
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 danoconnorll midthcom
wwwdorrolivereimcocom
HISTORICAL UPDATE
1904 -- John Van Norstrand founds Dorr Company
1907 -- Edwin Letz Oliver founds Oliver Company
1919 -- Oliver sells the first lime mud washer and enters the pulp and paper industry
1919 -- DOff develops the washer and slurry mixer
1920 -- Oliver sells the first pulp washer for washing soda pulp
1920 -- DOff develops the cane juice clarifier and sells the first one through a representative in Havana
1921 -- Oliver develops the Olivite Centrifugal Pump and begins marketing it
1922 -- Oliver sells the first sewage filters
1923 -- DOff develops rectangular clarifiers for sewage treatment
1925 -- Oliver sells the first filter for cane mud to a sugar mill in Hawaii
1925 -- DOff develops washing tray thickener and opens overseas offices in Paris and Berlin
1927 -- DOff designs Detritor for sewage degritting
1928 -- Oliver acquires United Filter and with it the companys principal manufacturing facility in Hazleton Pennsylvania Also develops and markets first Oliver-Campbell cane mud filter for sugar processing
1931 -- DOff establishes a facility in The Hague (now in Hoofddorp The Netherlands)
1931 -- DOff and Oliver merge for first time
1933 -- DOff establishes representation in India
1934 -- The merger is dissolved
HISTORICAL UPDATE continued
1935 -- Dorr develops the Torq Thickener
1937 -shy Oliver develops and markets the Precoat Filter
1937 -- Dorr develops a combination washing type tray thickener
1938 -- Dorr develops the slaker
1939 -shy Oliver develops and markets the ODSreg Pump (a diaphragm slurry pump)
1946 -- Dorr establishes representation in Venezuela
1947 -shy Dorr-Oliver markets the WLF Sulzer Disintegrator First installation BergenfieldlDumont NJ STP May 1948
1949 -shy National Filter Media Corporation formed by consolidating two smaller companies to manufacture and market filter media
1954 -- Dorr and Oliver companies merge for second time
1956 -- Merrill Company (Merco centrifugals) is acquired
1965 -shy Dorr-Oliver begins to market the Goratortrade under license from George Neidl First installation DuPonts Polyvinyl Butal plant for plastic laminate use in automobile safety glass
1968 -shy Dorr-Oliver introduces the Cabletorq Thickener
1968 -- Curtiss Wright acquires Majority ofDorr-Oliver stock
1969170 -shy Spring Assist and Air Cylinder Assist ODS Pumps are introduced
1979 -shy Curtiss-Wright completes acquisition ofDorr-Oliver stock
1981 -- Kennecott acquires Dorr-Oliver
1981 -- Kennecott and Sohio merge
2
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3
R ElM 1981 Kennecott acquires Dorr-Oliver
Kennecott and SOHIO merge
1987 Contor Holdings a Canadian company acquires Dorr-Oliver and Keeler Boiler
April 1988
May 1995
Sep1999
Sep 2000
Nov 2002
Aug 2007
Leveraged buy-out by Dorr-Oliver management
Krause-Maffei Germany acquires Dorr-Oliver
GLampV Montreal acquires Dorr-Oliver
Hazleton PA manufacturing closed
GLampV purchases Eimco Salt Lake City UT Dorr-Oliver and Eimco are integrated
FLSmidth Minerals Denmark (Bethlehem PA North American Headquarters) acquires Dorr-Oliver Eimco
FLSmidth Dorr-Oliver Eimco Inc 609 Hamilton Street Suite 2 Allentown PA 18101
Tel 610-740-1015middot Fax 610-774-0233 danoconnorll midthcom
wwwdorrolivereimcocom
HISTORICAL UPDATE
1904 -- John Van Norstrand founds Dorr Company
1907 -- Edwin Letz Oliver founds Oliver Company
1919 -- Oliver sells the first lime mud washer and enters the pulp and paper industry
1919 -- DOff develops the washer and slurry mixer
1920 -- Oliver sells the first pulp washer for washing soda pulp
1920 -- DOff develops the cane juice clarifier and sells the first one through a representative in Havana
1921 -- Oliver develops the Olivite Centrifugal Pump and begins marketing it
1922 -- Oliver sells the first sewage filters
1923 -- DOff develops rectangular clarifiers for sewage treatment
1925 -- Oliver sells the first filter for cane mud to a sugar mill in Hawaii
1925 -- DOff develops washing tray thickener and opens overseas offices in Paris and Berlin
1927 -- DOff designs Detritor for sewage degritting
1928 -- Oliver acquires United Filter and with it the companys principal manufacturing facility in Hazleton Pennsylvania Also develops and markets first Oliver-Campbell cane mud filter for sugar processing
1931 -- DOff establishes a facility in The Hague (now in Hoofddorp The Netherlands)
1931 -- DOff and Oliver merge for first time
1933 -- DOff establishes representation in India
1934 -- The merger is dissolved
HISTORICAL UPDATE continued
1935 -- Dorr develops the Torq Thickener
1937 -shy Oliver develops and markets the Precoat Filter
1937 -- Dorr develops a combination washing type tray thickener
1938 -- Dorr develops the slaker
1939 -shy Oliver develops and markets the ODSreg Pump (a diaphragm slurry pump)
1946 -- Dorr establishes representation in Venezuela
1947 -shy Dorr-Oliver markets the WLF Sulzer Disintegrator First installation BergenfieldlDumont NJ STP May 1948
1949 -shy National Filter Media Corporation formed by consolidating two smaller companies to manufacture and market filter media
1954 -- Dorr and Oliver companies merge for second time
1956 -- Merrill Company (Merco centrifugals) is acquired
1965 -shy Dorr-Oliver begins to market the Goratortrade under license from George Neidl First installation DuPonts Polyvinyl Butal plant for plastic laminate use in automobile safety glass
1968 -shy Dorr-Oliver introduces the Cabletorq Thickener
1968 -- Curtiss Wright acquires Majority ofDorr-Oliver stock
1969170 -shy Spring Assist and Air Cylinder Assist ODS Pumps are introduced
1979 -shy Curtiss-Wright completes acquisition ofDorr-Oliver stock
1981 -- Kennecott acquires Dorr-Oliver
1981 -- Kennecott and Sohio merge
2
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3
HISTORICAL UPDATE
1904 -- John Van Norstrand founds Dorr Company
1907 -- Edwin Letz Oliver founds Oliver Company
1919 -- Oliver sells the first lime mud washer and enters the pulp and paper industry
1919 -- DOff develops the washer and slurry mixer
1920 -- Oliver sells the first pulp washer for washing soda pulp
1920 -- DOff develops the cane juice clarifier and sells the first one through a representative in Havana
1921 -- Oliver develops the Olivite Centrifugal Pump and begins marketing it
1922 -- Oliver sells the first sewage filters
1923 -- DOff develops rectangular clarifiers for sewage treatment
1925 -- Oliver sells the first filter for cane mud to a sugar mill in Hawaii
1925 -- DOff develops washing tray thickener and opens overseas offices in Paris and Berlin
1927 -- DOff designs Detritor for sewage degritting
1928 -- Oliver acquires United Filter and with it the companys principal manufacturing facility in Hazleton Pennsylvania Also develops and markets first Oliver-Campbell cane mud filter for sugar processing
1931 -- DOff establishes a facility in The Hague (now in Hoofddorp The Netherlands)
1931 -- DOff and Oliver merge for first time
1933 -- DOff establishes representation in India
1934 -- The merger is dissolved
HISTORICAL UPDATE continued
1935 -- Dorr develops the Torq Thickener
1937 -shy Oliver develops and markets the Precoat Filter
1937 -- Dorr develops a combination washing type tray thickener
1938 -- Dorr develops the slaker
1939 -shy Oliver develops and markets the ODSreg Pump (a diaphragm slurry pump)
1946 -- Dorr establishes representation in Venezuela
1947 -shy Dorr-Oliver markets the WLF Sulzer Disintegrator First installation BergenfieldlDumont NJ STP May 1948
1949 -shy National Filter Media Corporation formed by consolidating two smaller companies to manufacture and market filter media
1954 -- Dorr and Oliver companies merge for second time
1956 -- Merrill Company (Merco centrifugals) is acquired
1965 -shy Dorr-Oliver begins to market the Goratortrade under license from George Neidl First installation DuPonts Polyvinyl Butal plant for plastic laminate use in automobile safety glass
1968 -shy Dorr-Oliver introduces the Cabletorq Thickener
1968 -- Curtiss Wright acquires Majority ofDorr-Oliver stock
1969170 -shy Spring Assist and Air Cylinder Assist ODS Pumps are introduced
1979 -shy Curtiss-Wright completes acquisition ofDorr-Oliver stock
1981 -- Kennecott acquires Dorr-Oliver
1981 -- Kennecott and Sohio merge
2
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3
HISTORICAL UPDATE continued
1935 -- Dorr develops the Torq Thickener
1937 -shy Oliver develops and markets the Precoat Filter
1937 -- Dorr develops a combination washing type tray thickener
1938 -- Dorr develops the slaker
1939 -shy Oliver develops and markets the ODSreg Pump (a diaphragm slurry pump)
1946 -- Dorr establishes representation in Venezuela
1947 -shy Dorr-Oliver markets the WLF Sulzer Disintegrator First installation BergenfieldlDumont NJ STP May 1948
1949 -shy National Filter Media Corporation formed by consolidating two smaller companies to manufacture and market filter media
1954 -- Dorr and Oliver companies merge for second time
1956 -- Merrill Company (Merco centrifugals) is acquired
1965 -shy Dorr-Oliver begins to market the Goratortrade under license from George Neidl First installation DuPonts Polyvinyl Butal plant for plastic laminate use in automobile safety glass
1968 -shy Dorr-Oliver introduces the Cabletorq Thickener
1968 -- Curtiss Wright acquires Majority ofDorr-Oliver stock
1969170 -shy Spring Assist and Air Cylinder Assist ODS Pumps are introduced
1979 -shy Curtiss-Wright completes acquisition ofDorr-Oliver stock
1981 -- Kennecott acquires Dorr-Oliver
1981 -- Kennecott and Sohio merge
2
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3
HISTORICAL UPDATE continued
1987 -- Contor Holdings acquires Dorr-Oliver and Keeler
1988 -- Leveraged buyout by Dorr-Oliver management
1991 -- ODSreg Automatic Pressure Control System (Patented 5252041) is introduced First installation Hershey Chocolate in Hazleton Pennsylvania
1995 -- Krauss-Maffei purchases DOlT-Oliver
3