Load-measuring hydraulic cylinder
US10352805B2 · kind B2 · utility
0Cited by
11References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 26, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Sep 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/0071
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hinged structure includes a hinge that is actuatable using a hydraulic cylinder. A method of monitoring a load applied to the hinged structure involves leaking the hydraulic fluid from the hydraulic cylinder in a way that compensates for expansion of the hydraulic fluid caused by variations in temperature of the hydraulic fluid. The method further involves measuring the pressure of the hydraulic fluid in the hydraulic cylinder. The hydraulic cylinder may be part of a coiled tubing injector. The load applied to the hydraulic cylinder may be used to indicate an overload of the tubing guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.