Discharge/vent module for power sprayer
US7175111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Apr 19, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B9/0861
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A manually operated sprayer for a container of liquid to be sprayed includes variable volume pump means having liquid inlet and outlet means for discharging the contents of the container. The sprayer further includes a control module having product and vent valves reciprocably disposed therein, the product and vent valves being simultaneously reciprocable by means of the manual actuator between valve open and valve closed positions. In the valve open position, the product and vent valves respectively prevent flow of product and air respectively into the liquid inlet means and into a vent passage in communication between atmosphere and an interior of the container, and in the vent closed position, the product and vent valves respectively enable flow of product and air respectively into the liquid inlet means and into the vent passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.