Pump for auger treater
US4167896A · kind A · utility
12Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1977 |
| Grant date | Sep 18, 1979 |
| Priority date | — |
| Expiry date | Aug 11, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A positive displacement pump for metering liquid chemicals and applying such chemicals into grains such as seed being conveyed through a screw conveyor, the pump including a reciprocating rod operated by an eccentric cam on the screw conveyor shaft, the pump rod having a shoulder and a stop carried by the housing to limit the length of movement of the rod, the stop being a rotary cam having flat surfaces, of varied distances from the cam axis and controlled by a hand operated knob.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.