Multiple cut zone blade assembly for a hand operated cutting tool
US8910386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Feb 28, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G3/0475
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hand pruner having a first and second handle, the first handle having a hook, formed at a far end, the second handle having a cutting blade formed at the far end. The first handle and hook and second handle and blade pivotally connected for movement with respect to each other. The blade and second handle having a cup formed between the blade and second handle. The hook and first handle having a cup formed between the hook and first handle. The cutting edge of the hook is formed along two concave intersecting arcs of different diameters, the smaller diameter arc located next to the pivot. The cutting edge of the blade is formed along two convex intersecting arcs having diameters that complement the two concave arcs in the hook cutting edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.