Impact sensor
US10866259B1 · kind B1 · utility
0Cited by
24References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jul 14, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D79/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An impact sensor has a hollow container with a spring extending therethrough. A liquid is present in the cavity. The spring biases opposing valve balls to a closed position, preventing dye that is located exterior of the cavity from entering the cavity. When a force applied to the sensor exceeds a first predetermined value, the spring is compressed or displaced, allowing at least one of the valve balls to move from the closed position to an open position, thereby allowing the dye at the moving valve ball to pass into the cavity, mixing with the liquid and providing a visual indication of the exceeded force upon the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.