Water ejecting apparatus
US11518666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Feb 23, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2307/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A water ejecting apparatus includes a case and a water ejection unit connected to the case. The water ejection unit includes a fixed cover connected to the case, having atop dead point and a bottom dead point, and including a lifting gear provided between the top dead point and the bottom dead point, a lifting cover movably coupled to the fixed cover, a lifting motor coupled to the lifting cover and a gear module interworking with the lifting motor and the lifting gear, a water ejection nozzle for ejecting water, a signal detecting unit that detects a frequency generation (FG) signal generated by the lifting motor during an operation of the lifting motor, and a controller configured to control the operation of the lifting motor upon determining that the lifting cover reaches the top dead point or the bottom dead point based on the FG signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.