1921

Development and first applications of rotating band screens, through-flow design (Gennevilliers, France)

1921

First pressure-line strainers (Fenne Power Plant, France)

1922

Beaudrey Patent for through-flow travelling band screens (545.686 dated 7th January 1922)

1922

World's first backwashed pressure line strainer.

1923

Beaudrey Patent for condenser tube-cleaning systems (561.362 dated 24th January 1923)

1924

Beaudrey Patent for dual-flow travelling band screens (577.255 dated 16th February 1924)

1924

First application of bar screen raking system (Chute de Drac Romanche, France)

1927

First drum screens (Edison)

1935

First on-line condenser debris filters (Saint Denis Power Plant, France)

1940

Beaudrey-Bergeron split into two companies. Beaudrey continues to specialize in screening equipment.

1940

First applications for micro-filtration (microstrainers)

1942

Beaudrey patents its "Colmatometer" in Morocco, an instrument to be used to measure the clogging capacity of water

1951

Development of large-diameter drum screens (10 m or more)

1953

First large diameter drum screen is installed (Gennevilliers, France). 11 m diameter.

1954

Installation of the first microstrainers (Annecy, France)

1955

Development of travelling band screens with contact, mobile seals that make fine-mesh screens possible.

1965

First travelling band screens without supporting structures in the civil works

1966

First trash rake (Les Awirs, Belgium)

1970

Beaudrey patents the first water-flushed trash rakes (patent n° 7001171 dated 14th January 1970)

1973

Water-clogging measurement developed by Beaudrey is standardized (Afnor reference NF T 90-030)

1976

First totally static debris filters, called "C" type (Dunkerque 1-2, France)

1978

Development of the fish-friendly "Scoop-a-fish" device. Beaudrey patent n° 7720258 dated 1st July 1979

1979

Manufacture of the largest ever drum screen, 20 m in diameter (Paluel 1-2, France)

1980

Development of the fish-friendly "Flo-in Flo off" device. Beaudrey patent 8021465 dated 8th October 1980.

1980

Development of the fish-friendly "Bio-flush" device for trash rakes.Beaudrey patent 8026266 dated 11th December 1980.

1983

Start of Beaudrey's activities in the USA (Palo Seco, Puerto Rico)

1983

First dual-flow travelling band screen in the USA (Astoria)

1983

First-ever installation of a travelling band screen using a helicopter as a crane (Camazes dam, France)

1984

Manufacture of a 22 m diameter drum screen (Flamanville, France)

1985

Creation of screening media with a minimal level head-loss and reduced biological impact (Nocling TM).

1986

Complete revamp of the "W" debris filter design with rotating internal screening disk.

1986

Feasibility study of Beaudrey debris filters with Japanese partner Marusei. Choice of design for future development and sales in Japan (Kashima, Japan). Selection of the "W" type.

1988

First sales in South Bangkok (Thailand) and Taichung (Taiwan 1-4)

1993

Development of the multi-cartridge, static Statodyn strainer, first installation for nuclear heat-exchanger applications (Cattenom, France)

1995

Creation of plastic Nocling screening media with low level of head-loss.

1998

Based on the successful field-tested "W" filter design, development of the Zero Ball Loss (ZBL) concept, viable alternative to conventional condenser tube-cleaning systems with the guarantee that no balls are lost in the environment.