Tool catch
US10208557B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 8, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/072
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wire line tool trap has a central housing with an axial passage. The passage is sized and shaped to movably receive a cable and tool. A pair of housings have an interior that opens to the passage of the center portion. Each of a pair of catch blocks are disposed in a respective lateral housing. Each catch block has an inside catch end with an under face and an upper face. When the catch blocks are fully inserted, a passage is defined to permit the wire line to pass therethrough. The under faces form a concavity, and the upper faces form a top land. The concavity permits a tool to urge the catch blocks apart and into a retracted state. Thus, the tool can drawn upwardly between the catch blocks. The top land retains a tool thereon and prevents the downward passage of the tool past the blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.