Pumping device with a pivotal lever for various valves
US6146116A · kind A · utility
Inventors
Key dates
| Filing date | Nov 9, 1998 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Nov 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3724
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pumping device includes a main body having a passage defined therein and communicated with an air source. A retainer is slidably received in the main body and includes a chamber communicated with the passage of the main body. A nozzle is received in the chamber of the retainer and includes a nozzle passage communicated with the chamber. A plastic nozzle head is securely mounted in the main body and includes a valve chamber defined therein and communicated with the nozzle passage. A lever is provided for switching the retainer between a first inoperative position and a second operative position in which when the retainer is switched to the second operative position, the retainer exerts an inward force upon an outer periphery of the plastic nozzle head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.