Ultrasonic cleaner and automatic analyzer using the same
US11148178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2017 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jul 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N35/1004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To suppress precipitation of a cleaning solution to a vibration head of an ultrasonic cleaner. An ultrasonic cleaner includes: a cleaning tank which stores a cleaning solution; an ultrasonic transducer; and a vibration head which extends from the ultrasonic transducer toward the cleaning tank and of which a tip portion includes a cylindrical hole having a longitudinal direction aligned to a vertical direction, wherein the ultrasonic transducer is driven at a frequency at which the vibration head is vibrated resonantly, and wherein the vibration head is provided with a hydrophobic or hydrophilic coating film 502 which has an interface between an area 223 corresponding to a vibration antinode and area corresponding to a vibration node during the resonant vibration of the vibration head, and covers the area 222 corresponding to the vibration node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.