The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2023
Filed:
Mar. 22, 2019
University of Canterbury, Christchurch, NZ;
Tom Cochrane, Christchurch, NZ;
Frances Charters, Christchurch, NZ;
Aisling O'Sullivan, Christchurch, NZ;
UNIVERSITY OF CANTERBURY, Christchurch, NZ;
Abstract
A device for treating roof runoff has a first tube adapted to be axially aligned with, and in fluid communication with, an outlet of a downpipe. The first tube contains a crushed calcium carbonate media. The device has a second tube in fluid communication with the first tube. The first tube and second tube are arranged such that when a flow of roof runoff from the downpipe is at or below a predetermined flow rate, the flow of roof runoff is directed into the first tube to be treated by the crushed calcium carbonate media contained therein, and when the flow of roof runoff is above the predetermined flow rate, excess flow is diverted into the second tube.