Flue damper having a float coupled to a damper gate
US11703221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Aug 1, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2900/13004
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A flue damper may include a flue pipe with a first side leading to an outlet of the flue damper and a second side leading to an inlet of the flue damper. A damper gate may be included and have an open state and a closed state, where in the open state, the first side of the flue pipe is in fluid communication with the second side, and where in the closed state, the damper gate interrupts fluid communication between the first side and the second side. A float may be secured to an upper surface of the damper gate. The upper surface of the damper gate may face the first side of the flue pipe when the damper gate is in the closed state such that the damper gate at least partially opens when condensate collects within the first side of the flue pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.