Circulating liquid bath with dual reservoir level switch
US10532359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2012 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Oct 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6416
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A circulating bath (10) including a heater (18) configured to heat a fluid (34) in a reservoir (22). The heater (18) is configured to be operatively connected to a source of power (50) by a control circuit (39) operatively coupled to the heater (18). First and second fluid level sensors (14) (16) are operatively coupled to the control circuit (39), and provide signals indicative of a low fluid condition in the reservoir (22). The control circuit (39) is configured to receive the signals from the fluid level sensors (14) (16), and disconnect the heater (18) from the source of power (50) in response to receiving a signal from either of the first and second fluid level sensors (14), (16) indicative of a low fluid condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.