Visual indicator
US10197430B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2014 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B25/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A visual indicator for denoting a fluid level in a throat portion of a waterless urinal cartridge is presented. The visual indicator comprises a fluid level indicator disposed in the throat portion of the cartridge. As material buildup occurs inside the cartridge, a corresponding rise in the fluid level in the throat of the cartridge may be seen relative to the indicator, indicating when the cartridge will need replacement. The visual indicator may comprise markings that indicate the level of fluid within the throat portion, reactive materials, or an electronic reader. The fluid level indicator may also be made visible by ultraviolet radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.