Caliper-arm retention system
US11078776B2 · kind B2 · utility
1Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2020 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Feb 11, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A caliper-arm-retention mechanism for a caliper tool is disclosed. The retention mechanism includes a selectively movable retention sleeve and a pivot arm that cooperate to constrain relative translational motion between the pivot arm and a caliper arm pivotally engaged with the pivot arm while at the same time allowing relative rotational movement of the caliper arm and pivot arm. The retention sleeve may be selectively repositioned using a threaded nut configured to push the sleeve toward the pivot arm or pull the sleeve away from the pivot arm, depending on the direction of rotation of the nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.