Air freshener with optional drain cleaner
US10105462B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2015 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jun 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automatic air freshener that operates for a period of time in excess of about 14 days, and that may optionally include a drain cleaner, mosquito repellant, or other beneficial fluid. Certain embodiments are adapted for disposal in a urinal, although a variety of other applications are contemplated. An air freshener may operate by: emanation of scent from a rubber or rubber-like material that carries a dispersed scented oil; gravity-induced drip from a bulk supply of scented fluid through a small orifice; osmotic transfer of scented fluid from a bulk supply; or gas-pump drive of scented fluid at controlled pressure. When present, the drain cleaner typically is carried by a container structured to permit a slow drip of drain cleaning fluid from a bulk fluid supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.