Exhaust vent
US12379117B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 11, 2021 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Oct 10, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2007/0025
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An exhaust vent is provided including a first portion inserted through an opening in an outer wall of a structure for fluidly connecting to an appliance to be vented within the structure, a second portion fluidly connected to the first portion at a junction and having an open end opening into the atmosphere, a flap disposed at the junction configured to open by pressure from exhaust air directed through the first portion from the appliance and allow the exhaust air to pass through the second portion and be vented through the open end to the atmosphere, and the flap is further configured to close by gravity to seal the junction between the first and second portions when no exhaust air is directed through the first portion from the appliance to prevent back airflow from the atmosphere through the open end through the second portion to the first portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.