Crimping assembly
US7155955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2002 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Sep 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D39/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A crimping assembly is disclosed. The assembly includes cam profiles on the ends of the arms. The cam profiles are engaged by the crimping tool and control the input force versus displacement of the tool. The cam profile includes a first portion defined by a radius, a second portion adjacent the first portion and defined by a non-linear equation, and a third portion adjacent the second portion and defined by a linear equation. The assembly further includes a passive mode of failure in the side plates. The arms of the assembly have a hardness greater than the side plates and have a maximum section height at their point of rotation for increasing their strength. The assembly further includes a leaf spring disposed between the arms and held therebetween by pins disposed in holes defined in the sides of the arms. A crimp ring having an increased diameter is disclosed for reducing the crimping force required to crimp 3-inch fittings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.