Suck-back type coating gun unit
US10814345B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jul 10, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C5/0275
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A suck-back type coating gun unit characterized in that a needle, which is formed into a single body with a movable valve body of a valve mechanism, is provided, and a cam-type valve driving mechanism, which includes a cam that is at its cam surface in contact with the tip end of the needle, is provided. In this suck-back type coating gun unit, a cam-type valve driving mechanism that makes stroke motions is configured in which the rotational operation of the cam body is converted into a stroke operation to make a valve ON and OFF operation of the hot melt coating gun unit, so that the ON operation is made by the ridge portion of the cam body and the OFF operation is made by the valley portion of the cam body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.