Orifice cover slide for trigger sprayer
US5657907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Nov 13, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/0032
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A trigger pump sprayer has an external cover plate mounted on and parallel to an end wall of the pump body containing the discharge orifice for transverse sliding movement between an orifice covered position at which a first portion of the cover plate overlies the orifice and an orifice uncovered position at which a second portion of the cover having a through opening lies coaxial with the orifice. Guide tracks on said end wall supporting said plate for sliding movement are sloped toward the end wall for camming an inner surface of the first portion of the plate toward the confronting outer surface of the end wall for fluid tightly sealing the orifice closed against leakage in the covered position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.