Sucker rod ratchet wrench
US4622869A · kind A · utility
3Cited by
2References
4Claims
0Family size
Inventor
Key dates
| Filing date | Sep 16, 1985 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Sep 16, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratchet barrel is placed upon the lower half of sucker rod joint. A wrench is placed upon the upper half of the joint. A torque handle is pivoted to the wrench. A pawl upon the torque handle engages a ratchet wheel upon the barrel to tighten or loosen the joint. A stop upon the wrench permits the wrench to be rotated by the torque handle without the assistance of the ratchet and pawl mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.