Hand-held coating-dispensing apparatus
US4165022A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1977 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Mar 2, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0531
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic, coating-dispensing apparatus includes an electrode upon which an electrostatic potential is impressed. The electrostatic potential is developed by a switching circuit, autotransformer and voltage multiplier from rectified line voltage. The entire apparatus is housed in a hand-held applicator to which line voltage is supplied. The apparatus includes a socket defined at one end thereof for interchangeably receiving containers holding various colors or types of coating material. Each container includes an electrode for contacting the first-mentioned electrode. The containers are shaped to fit snugly into the socket to hold the two electrodes in contact. An outer end wall of each container has a mesh portion through which charged particles of coating material from the interior of the container pass when the apparatus is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.