Self-resetting child-resistant trigger sprayer
US6286723A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Mar 6, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1077
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A self-resetting child-resistant trigger sprayer having a lock slidingly mounted on the trigger lever for locking the trigger sprayer. The lock has a pair of extensions, a biasing member and a projection that all extend away from the main portion of the body of the lock. The extensions engage a portion of the trigger sprayer and the biasing member provide a restoring force that enables the trigger sprayer to be self-resetting. The projection is capable of being moved by the operator of the sprayer along the trigger lever. When in a raised position, the extensions disengage from a portion of the body of the sprayer placing the sprayer in an unlocked position. However, when the projection is released, the extensions engage a portion of the piston cylinder preventing the piston cylinder from moving and the biasing member automatically force the lock into a lower, locked position on the trigger lever thus rendering the sprayer self-resetting and child-resistant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.