Pump system, fluid supply device and pressure detection method
US11754066B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 22, 2021 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Dec 22, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump system contains a vibration actuator which can be electromagnetically driven, a sealed chamber connected to a suction port and a discharge port, and a movable wall for changing a volume of the sealed chamber. The movable wall is displaced due to drive of the vibration actuator to supply fluid in the sealed chamber into a cuff. The pump system detects pressure in the cuff based on a consumption current of the vibration actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.