Upright/inverted sprayer
US5775548A · kind A · utility
7Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | May 22, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1095
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A manually actuated liquid pump sprayer is capable of use in both upright and inverted positions without leakage through the vent port by the provision of a first slider valve which covers an inlet port in the upright position and which uncovers that port when the pump is inverted. A second slider valve located within the pump body is provided for uncovering the vent port in the upright position of spray, and for covering that vent port in the inverted position to avoid leakage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.