Foldable knife with disposable blades
US7797835B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 7, 2008 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jan 18, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B5/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A foldable knife includes a handle, a frame pivotally connected to the handle, a cartridge pivotally connected to the frame, a leaf spring attached to the frame, a blade-driving device, a blade-positioning element and a button. The frame includes a slot. The cartridge includes a slot through which the leaf spring reaches at least one blade when the cartridge is disposed in the frame. The blade-driving device includes a plate and a switch. The plate is in firm contact with the blade. The switch includes a portion located outside the frame and another portion inserted through the slot of the frame and connected to the plate. A blade-positioning element is movably connected to the frame. A button includes a portion for pushing the blade-positioning element and another portion inserted through the aperture of the frame for contact with a user's finger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.