Devices and methods for optimizing flow through drains
US10724218B1 · kind B1 · utility
0Cited by
1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2019 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jan 10, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drain insert is described that provides a valve that prevents backflow of objects and materials through the drain inlet and which has an internal wall with a convex curvature. This convex curvature, which can be elliptical, provides improved fluid flow rates relative to straight walled, cylindrical configurations, permitting small diameter drains to utilize the drain insert while meeting IAPMO flow rate requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.