Means in scissors for balancing the closing force of the scissors
US4251916A · kind A · utility
5Cited by
6References
5Claims
0Family size
Inventor
Key dates
| Filing date | Nov 7, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Nov 7, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B13/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates a means in scissors for balancing the closing force of the scissors. It comprises a wave-shaped spring washer clamped between the head of the scissors rivet and the shear blade, at least one of the contact surfaces being wave-shaped and provided with the same number of waves as the spring washer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.