Liquid pump device
US9228583B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 30, 2012 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/0063
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a liquid pump device, having a pump shell body, a soft rubber pressing device, a discharge channel, a sealed discharge cap, and a guiding tube. The pump shell body has an upper shell and a lower shell connected to form a first cavity communicated with the discharge channel. The lower shell has an arc surface with an upward opening. A flange is arranged at the lower end of the arc surface of the lower shell, a through hole being arranged at the middle of the flange. The soft rubber pressing device forms a second cavity with the lower shell. The sealed discharge cap has at least one cut forming a discharge port, and is sleeved to an end portion of the discharge channel. The guiding tube is arranged in the through hole of the flange, and is communicated with the second cavity via the feeding channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.