Trap assembly for a condensing fossil fuel furnace
US4729328A · kind A · utility
18Cited by
25References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1987 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Apr 23, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved trap assembly for a high efficiency fossil fuel furnace includes a vertical tube closed at its lower end with a condensate inlet immediately above the lower end and a condensate outlet above the inlet. A flue gas inlet is provided at the top end of the tube with a flue gas outlet immediately adjacent thereto. A float with a sealing cap is positioned within the tube and rises in response to the level of condensate to block the flue gas outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.