Retractable knife with single-edged blade
US6101722A · kind A · utility
Inventor
Key dates
| Filing date | Sep 9, 1999 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Sep 9, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B1/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A retractable knife with single-edged blade comprises a handle of flat shape having a resilient member provided thereon; a blade hinged to handle; and an elongate protective member raised on the handle extended from one end to the opposite end along an edge thereof; wherein blade is engaged with protective member when blade is received onto handle such that blade is placed in a position away from reach of a user. By utilizing this, many advantages are offered such as user being not susceptible of hurt by the sharp blade when grasping or carrying knife, other objects being not susceptible of damage by the sharp blade when the objects are put together with knife, and the blade being not susceptible of wear due to a collision with the objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.