Storm water filter and components thereof and methods of installation and use
AssigneeEHL Limited
InventorsMichael Morton Hannah, Gregory Paul Yeoman, Gary John Lawford, Nicholas Alan Vigar
Life of this patent
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Abstract
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.
Claims29
A storm water filter bag having a base and a plurality of side walls joined at corners including rigid horizontal battens to support the bag and attachment elements at the corners positioned for engagement to a supporting frame such that as the bag fills bulging of the side walls of the bag is resisted by the attachment elements retaining the side walls in tension between the frame.
A storm water drain filter including:
- a. a collapsible frame consisting of a plurality of rigid elements that may be assembled to form a rigid frame and disassembled into a collapsed form for transport;
- and
- b. a bag having rigid horizontal battens to support the bag and connectors positioned about the periphery of the bag for attachment to the frame, when assembled, so as to restrain outward movement of the walls of the bag in use.
A plant container including:
- a. a rigid frame;
- b. a bag having rigid horizontal battens to support the bag and connectors positioned about the periphery of the bag for attachment to the frame, when assembled, so as to restrain outward movement of the walls of the bag in use;
- and
- c. a rain garden media provided in the base of the bag.
A storm water filter bag having a base and a plurality of side walls joined at corners having seams along the corners of the bag to accommodate elements of a support frame and having rigid horizontal battens between the corners such that as the bag fills bulging of the side walls of the bag is resisted by the corners retaining the side walls in tension between the frame.
Dependencies are inferred from the claim text.