Knife with automatic blade retraction
US10814505B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Dec 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B5/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife with automatic blade retraction including a housing, a moveable actuating device, a rotatable blade unit, and a retraction element which always applies a retraction force to the blade unit in the direction of the retracted position. The rotatable blade unit can be brought into engagement with the actuating device and is moveable by means of the actuating device from a position retracted in the housing into a position extended from the housing. The blade unit is also rotatable by the action of a cutting force in an extended position from an engagement position in which the blade unit is in engagement with the actuating device into a release position in which the blade unit is not in engagement with the actuating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.