Manual spray apparatus
US5020725A · kind A · utility
Inventor
Key dates
| Filing date | May 24, 1989 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | May 24, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B9/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A manual, portable spray apparatus is disclosed to enable a worker to spray fields in a remote area where batteries may be difficult to obtain. The apparatus includes a portable chemical liquid storage tank, from which gravity feeds agricultural liquid chemicals to a rotary spray head. The spray head is powered by a small electric motor which receives its electrical current from a portable dynamo. The portable dynamo is rotated by a portable gear train which in turn is functioned by a hand crank. The worker can maintain spraying operations by rotating the crank as he walks and by applying the rotary spray head to the desired areas to be sprayed as the entire apparatus is moved. The dynamo output can be connected to accessory electrical or electronic equipment such as a radio transmitter, a transistor radio or a lamp to thereby achieve maximum utility under all conditions of use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.