Abstract: A device (1) for purification of water driven by gravity through a purification unit between an upper dirt water container (2) and a lower clean water tank (3). A backwash system may be integrated, the system comprising a receptacle (8) for accumulation of the backwash water to prevent consumption thereof by mistake.
Type:
Grant
Filed:
April 21, 2016
Date of Patent:
July 6, 2021
Assignee:
Vestergaard SA
Inventors:
Mikkel Vestergaard Frandsen, Daniel Frauchiger, Jean-Luc Madier de Champvermeil, Jean-Marc Pascal, Luc Stoops
Abstract: An insecticidal polymer matrix containing Piperonyl Butoxide (PBO) and deltamethrin (DM), wherein the ratio between the content of PBO and the content of DM in terms of weight is higher than 3.
Type:
Grant
Filed:
December 8, 2014
Date of Patent:
October 30, 2018
Assignee:
Vestergaard SA
Inventors:
Mikkel Vestergaard Frandsen, Michael Stanley Pedersen, Matthieu Zellweger, Sebastien Gouin, Sicco Dirk Roorda, Thi Quynh Chi Phan
Abstract: A fencing for preventing insects to enter an open air area comprising a substantially upright structure with a height suitable to prevent low flying insects to enter said open air area. The structure of the fencing is impregnated with an insecticide.