Liquid sprayers
US6752330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2001 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | May 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/0206
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid sprayer is provided. This liquid sprayer includes a bottle having an opening and a sprayer housing attached to the bottle. This sprayer housing includes an electrical motor, a voltage source for powering the electrical motor, a pump driven by the motor, a switch for completing an electrical circuit, a nozzle mechanism attached to the sprayer housing for spraying a liquid. The liquid sprayer also includes a deformable “pinched tube” mechanism which prevents liquid from flowing through the nozzle when the sprayer is not being used. The sprayer housing also includes a trigger movably connected to the sprayer housing for closing the switch, translating the piston and creating a leak-tight seal by squeezing the “pinched tube”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.