Electronic water level sensing apparatus and associated methods
US9677785B2 · kind B2 · utility
1Cited by
13References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2012 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fuel-fired condensing type air heating furnace is provided with an electronic condensate water level sensing system operative to sense improper outflow of condensate from a collector box portion of the furnace and responsively shut down or prevent operation of the furnace. Condensate probe portions of the system are oriented in a manner such that several air flow orientation of the furnace may be utilized without the necessity of relocating the probes or effecting an re-wiring of the water level sensing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.