Liquid applicator with slidable pump mechanism
US4764044A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Dec 31, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/1018
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writing instrument or an applicator of the invention is constructed of: a shaft sleeve main body having an application liquid reservoir therein; and an application member provided in a front end of the shaft sleeve main body to receive a liquid supplied from the liquid reservoir. The shaft sleeve main body comprises: an ink conduit member provided with a large-diameter piston portion, and a rod element which projects forward from the piston portion and is smaller in diameter than the piston portion while provided with a communication-hole; a cylinder member for slidably receiving the ink conduit member means for moving the cylinder member along the axial line of the shaft sleeve main body; means for biasing both the cylinder member and the ink conduit member so as to be separated from each other; and a hole for the application member, connected to a front end portion of said ink conduit member, which front end portion projects from the cylinder member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.