Combined new oil vending and waste oil removing apparatus
US4193487A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Mar 29, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F13/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A combined new oil vending and waste oil removing apparatus designed to automatically remove waste oil from an external oil reservoir and thereafter to feed new oil thereto for selling purposes. The apparatus comprises a waste oil removing device for removing and storing waste oil from an external oil reservoir, a fresh oil feeding device for feeding fresh oil to the external oil reservoir after removal of waste oil, and a control device for controlling the operations of the waste oil removing device and the fresh oil feeding device. With this apparatus, replacement of oil may be carried out readily and automatically without need for giving any consideration to disposal of waste oil as removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.