Inner diameter measuring device
US9372061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2013 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Mar 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inner diameter measuring device (50) for measuring an inner diameter of a hollow object to be measured, wherein the inner diameter measuring device comprises a circulation unit (1) and a measuring head (2) and is insertable into inside of an object to be measured, wherein the measuring head has a contact measuring unit (27) for measuring the inner diameter by contacting an inner surface of the object to be measured and an advancing/retreating unit (23) for making the contact measuring unit to advance and to retreat in a radial direction, and wherein the circulation unit can rotate the measuring head around a center line (51) of the inner diameter measuring device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.