Precompression pump sprayer
US5626264A · kind A · utility
12Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1063
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A precompression pump sprayer is primed by the provision of a priming ramp for deflecting the lower end of a poppet valve member at the end of the plunger downstroke for cocking the valve member so as to disrupt its sealing action with the discharge valve seat to thereby permit air to be released from the pump chamber through the discharge orifice and to the atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.