Pile tester
US5247835A · kind A · utility
Inventor
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D33/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A self-contained unit has a probe (N) urgeable against a structure to be tested, a shock assembly (H, I, J, F, M) for applying a shock to the structure through the probe (N), and a transducer (A, B, C) for receiving resulting vibrations from the structure through the probe (N) and providing electrical output data. The unit also includes a memory (b) for storing the data. The unit has a tubular body (E) in which the transducer (A, B, C) is receivable. The transducer (A, B, C) is linked to a weight (H) and springs (G, I) such that urging the probe (N) against a structure progressively compresses springs (G, I), drives the enclosure (A, B, C) into the body (E) and raises the weight (H) until the weight is suddenly released and hits the transducer (C) to supply the shock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.