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History of its main inventions
- 1924 :
Development and
first applications of dual-flow screens
- 1925 :
First drum
screens
- 1936 :
First on-line
condenser debris filters
- 1940 :
First
applications for micro-filtration (microstrainers)
- 1947 :
First fine-mesh
travelling band screens
- 1950 :
Development of
large-diameter drum screens (10 m or more)
- 1952 :
Water-clogging
measurement developed by Beaudrey is standardized (Afnor reference NF T
90-030)
- 1955 :
Development of
travelling band screens with total, mobile seals
- 1969 :
First trash
rakes with water-flushing devices
- 1972 :
First
travelling band screens without supporting structures in the civil works
- 1976 :
First totally
static debris filters
- 1978 :
Development of
the fish-friendly "Scoop-a-fish" device
- 1980 :
Development of the
fish-friendly "Bio-flush" device for trash rakes
- 1980 :
Development of
the fish-friendly "Flo-in Flo off" device
- 1985 :
Creation of
screening media with a minimal level head-loss and reduced biological impact
(Nocling TM). Zero Ball Loss systems
- 1990 :
Up-grading of the "W" debris
filter with rotating internal screening disk
- 1995 :
Creation of
screening media for optimised head-loss.
Zero Ball Loss.
- 2005
:
Development of the "WIP", an automatic intake screen with
integrated fish-life protection
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