Locking safety utility knife
US5890294A · kind A · utility
54Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Jan 24, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B5/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A locking safety utility knife includes a body and an operating lever that is squeezed to deploy a retractable cutting blade from within the body. The blade can be locked in its retracted position by means of a ratchet-like mechanism including a pawl which is released by manipulating a cam operator. The pawl engages teeth formed on the outside of a door which closes the rear of a compartment formed in the operating handle to house spare blades, or a blade cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.