Heating and cooling apparatus
US8655159B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 16, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Mar 9, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/283
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
As exemplified, a portable air blowing appliance includes a housing retaining an airflow-producing electric motor-driven blower. The blower is adapted when energized for operation in either a first or a different mode. An electric heating element is adapted when energized to expel heat. An electric switch enables energizing of the blower and the heating element to either cause operation of the blower in the first mode or to cause, simultaneously, operation of the blower in the different mode and heat expulsion by the heating element. The blower is adapted for higher airflow-producing efficacy during the first mode. The heating element is disposed to warm airflow from the blower during the different mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.