Tensioning hydraulic nuts
US7140824B2 · kind B2 · utility
11Cited by
24References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2003 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 15, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B29/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hydraulic tensioning system for nuts on studbolts has a puller bar and a puller buddy, which are coupled to the studbolt, and a bridge around the nut. The puller bar is internally coupled to the studbolt (and may engage the nut before the tension is applied). The nut can comprise a cone nut, which cooperates with a complementary collar or shell with a conical inner face and a spherical base washer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.