Ultrasonic load measuring device with control feature
US5220839A · kind A · utility
48Cited by
27References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1991 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Nov 25, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2691
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A load indicating device and a method of using a load indicating device for monitoring the deformation in and imparting torque to a load bearing member are disclosed and claimed. An ultrasonic transducer, grown on one surface of a load bearing member, such as a fastener, is used to determine the length, stress or other tensile load dependent characteristic of the member using ultrasonic techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.