Box-type warewasher including heat recovery system for reducing air moisture level at the end of cycle
US8679261B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2010 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Feb 12, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L15/0078
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A box-type warewasher includes a housing defining an internal treatment space for receiving wares to be washed and a liquid sump below the treatment space. A wash liquid delivery system includes a wash pump having an input connected to the liquid sump and an output connected to deliver liquid to one or more spray nozzles of the treatment space. A rinse liquid delivery system includes a rinse pump for delivering rinse water to one or more spray nozzles of the treatment space. A condensing system includes a heat exchanger external of the treatment space, and a blower for moving hot moist air from the treatment space across the heat exchanger and back to the treatment space. A controller effects operation of each of the wash liquid delivery system, the rinse liquid deliver system and the condensing system. The controller is configured for carrying out at least one ware cleaning sequence in which: a wash spray operation is carried out by operating the wash pump; subsequent to the wash spray operation a rinse spray operation is carried out by operating the rinse pump; and subsequent to the rinse spray operation a condensing operation is carried out by operating the blower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.