Differently configured fuel-fired water heaters constructed from identical production platforms
US7013841B1 · kind B1 · utility
23Cited by
22References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2005 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Feb 1, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/1836
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A specially configured fuel-fired water heater production platform may be used as a natural draft water heater. Alternatively, by modifying an upper end portion of the production platform using associated conversion apparatus, the same platform may be converted to a power vented water heater subassembly, a natural draft direct vent water heater subassembly, or a powered direct vent water heater subassembly to thereby lower the overall production costs for these different types of fuel-fired water heaters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.