Waste oil delivery system
USRE34826E · kind E · reissue
0Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC —)General
Abstract
The distance between the combustion nozzle and the pump of a waste oil heater can be significantly increased by using a positive displacement pump which is proximate to the reservoir and remote from the nozzle, contary to the usual positioning of oil delivery pumps. The pump, which is not pressure regulated, thus pushes oil to the nozzle at a constant flow rate regardless of oil pressure at the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.