Device for applying a viscous substance
US12290825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2019 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Apr 17, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1066
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a device for applying a viscous substance, in particular for the purposes of cosmetics, writing, painting, drawing, and/or marking, with a tank (40) for storing a liquid substance, a pump cage (42) arranged within the tank (40), an application apparatus (2), and a conveying device (3), which is configured such as to convey the substance out of the tank (40) to the application device. According to the invention, provision is made for the conveying device (3) to comprise a cylinder (10), a piston (30) arranged such as to be axially displaceable in the cylinder, a pump plunger (20) for the axial displacement of the piston (30) and having a plunger hole (26), a first connection channel (41) between the cylinder (10) pump cage (42) and the tank (40), and a second connection channel (21) between the cylinder (10) pump cage (42) and the application apparatus (2), plunger hole (26) the piston (30) to be adjustable in relation to the pump plunger (20), for the piston (30) to open or close the first connection channel (41) depending on the setting in relation to the cylinder (10), and for the piston (30), depending on the position in relation to the pump plunger (20)…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.