Fertilizer spreader
US4180184A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1978 |
| Grant date | Dec 25, 1979 |
| Priority date | — |
| Expiry date | Mar 29, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C15/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drop type spreader for handling fertilizer, grass seed or the like for lawns and residential use has a flow control hand grip lever positioned at the spreader handles. The lever is gripped together with one of the handles for initiating flow, and the flow control gate and the lever automatically return to cut off the flow when the lever is released. A tension spring is connected between the hopper and the flow control gate for returning the gate to the flow blocking position when the lever is released. The rate of flow is also controlled from the lever by an adjusting screw, and an indicator is provided at the lever for indicating the selected rate of flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.