Storage tank scale for a refrigerant recovery system
US4878356A · kind A · utility
30Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Oct 28, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2345/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A refrigerant recovery system that includes a refrigerant storage container, means for withdrawing refrigerant from a refrigeration system to be serviced and feeding such refrigerant to the container for storage, and a scale supporting the container for sensing impending overfill of the container. The scale includes a beam horizontally rigidly cantilevered from a base. A switch is positioned adjacent to the cantilever-remote end of the beam, and is responsive to deflection of the beam to indicate impending overfill of the container and prevent or terminate operation of the refrigerant recovery system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.