Box cutter with autoretracting blade
US6785966B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2003 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Mar 30, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B5/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife has a blade-carrying blade slide and a separate actuator slide, both urged by springs into rear positions. A transversely displaceable coupling member on one of the slides is engageable with the other of the slides for coupling the blade slide with the actuator slide for movement of the blade slide from its retracted position into its intermediate position on displacement of the actuator slide from its rear end position into its front end position and for decoupling the slides from each other and shifting transversely out of a path of the other slide on movement of the blade slide from its intermediate position into its extended position. Cam formations on the slides displace the blade slide into the extended position on exertion of a transverse force against the blade edge in the intermediate position of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.