Cutting stroke-adjustable pruning shears
US6640442B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 3, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G3/0251
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cutting stroke-adjustable pruning shears is constructed to include a fixed jaw and a movable jaw pivoted together, the movable jaw having an elongated slot and a plurality of retaining notches in one long side of the elongated slot, a holder shell, the holder shell having two parallel side panels pivoted to a middle part of the fixed jaw at two sides and a spine connected between the parallel side panels, a coupling arm, the coupling arm having one end pivoted to the parallel side panels of the holder shell and an opposite end mounted with a pivot coupled to the elongated slot of the movable jaw and selectively positioned in one of the retaining notches, a tension spring disposed inside the holder shell and connected between the holder shell and the coupling arm, and two handles respectively fastened to the fixed jaw and the holder shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.