Dual heater system for spray dispenser
US9849475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2013 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Dec 16, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B7/806
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mobile spray dispenser comprises a fluid circulation system and a heating unit. The fluid circulation system has a motorized pump capable of circulating fluid from a fluid reservoir in a high-pressure spray mode and a low-pressure recirculation mode, and of providing the fluid to a sprayer. The motorized pump draws lower power in the low-pressure recirculation mode than in the high-pressure spray mode. The heating unit is disposed within the fluid circulation system to heat the fluid to a target temperature, and comprises a primary heater and a boost heater. The primary heater is configured to be active during both the high-pressure spray mode and the low-pressure recirculation mode. The boost heater is in fluid series with the primary heater, and is configured to be active only during the low-pressure recirculation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.