Abrégé

A method of removing sediment from fluid flow within a storm water drain pit by deflecting flow entering the pit towards the side walls of the pit by one or more deflectors. This reduces the energy of the fluid flow and promotes settling of sediment within the catch pit. Each deflector is preferably of a concave form and may be located in a storm water drain pit bag or suspended. A removable catch basin receptacle for a storm water drain pit includes a container has a low flow outlet defining a fluid path for fluid at a first level within the container to a second level, higher than the first level, outside the container. An overflow path provides a fluid flow path out of the container at a level higher than the first or second level.

Classes IPC  ?

• E03F 5/14 - Dispositifs pour séparer les matières liquides ou solides des eaux, p. ex. paniers, râteaux ou grilles à sable ou à résidus
• E03F 5/16 - Dispositifs pour séparer l'huile, l'eau ou la graisse des eaux d'égout dans les conduits menant au collecteur
• E03F 5/10 - Réservoirs collecteursRéservoirs compensateurs pour la régulation du débitBassins d'accumulation
• B01D 35/00 - Dispositifs filtrants ayant des particularités non couvertes spécifiquement par les groupes , applications non couvertes spécifiquement par les groupes Dispositifs auxiliaires pour la filtrationStructure du carter de filtre
• B01D 21/00 - Séparation par sédimentation de particules solides en suspension dans des liquides
• B01D 21/02 - Bacs de décantation

Abrégé

A storm water drain pit having a flow control system which, during periods of low flow, maintains the level of liquid in the pit below a first level and, during periods of high flow, maintains the level of liquid above a second level. A first collapsible frame has perforated panels connected together by hinge joints so that the panels may be folded into a flat pack configuration and unfolded to form a frame to surround and support a storm water drain bag. A tubular frame may be formed from by rolling up a perforated sheet into a cylinder of desired diameter, fitting bands to the top and bottom of the cylinder, fixing them to the cylinder and fitting a base. The bands may be flat strips having support brackets provided at intervals projecting away from a flat face of the strip to provide support for the rim of a filter bag. A storm water filter system includes a pit having an inlet and an outlet; a plurality of pit inserts in the form of perforated frames supporting filter bags; a flow distributor which distributes fluid from the inlet into all or selected ones of the plurality of pit inserts; and an outlet for receiving liquid passing through the pit inserts exiting from the pit.

Classes IPC  ?

• E03F 5/20 - Siphons ou siphons inversés
• E03F 5/10 - Réservoirs collecteursRéservoirs compensateurs pour la régulation du débitBassins d'accumulation
• E03F 5/14 - Dispositifs pour séparer les matières liquides ou solides des eaux, p. ex. paniers, râteaux ou grilles à sable ou à résidus
• E03F 5/04 - Bouches d'égout avec ou sans obturateur d'odeurs ou chambre à sédiments

Abrégé

A storm water drain filter including a collapsible frame supporting a filter bag. The filter may be installed in a stormwater drain pit to capture contaminants and particulate matter before it enters a stormwater drain. The collapsible frame is light weight, compact, simple and inexpensive. The filter bag is secured to the frame so as to maintain its shape and avoid deformation. There is also disclosed a method of installing a stormwater drain filter in a stormwater drain pit to provide an effective seal between the stormwater drain filter and the pit.

Classes IPC  ?

• E03F 5/14 - Dispositifs pour séparer les matières liquides ou solides des eaux, p. ex. paniers, râteaux ou grilles à sable ou à résidus
• E03F 3/04 - Canalisations ou accessoires spécialement adaptés aux égouts
• E03F 5/04 - Bouches d'égout avec ou sans obturateur d'odeurs ou chambre à sédiments