Scissors sharpener
US4825544A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Mar 29, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D15/063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A scissors sharpener including a pair of elongate sharpening elements relatively arranged so as to define a vee shaped sharpening recess between them. Each sharpening element forms a respective one of two sides of the recess and each side has a longitudinal extent which is no less than the length of the scissor cutting edges to be sharpened. At least one of the sharpening elements is mounted so as to be movable laterally away from the other element, and resilient means bears against the movable element so as to resist the aforementioned movement. The sharpening elements overlie a base plate and an extension of that plate forms a platform against which the handle portion of scissors can rest during the sharpening operation. In use, scissors are located on the sharpener with the closed blades over the recess and the cutting edges extending generally in the longitudinal direction of the recess sides. Sharpening is effected by moving the closed blades sidwards through the recess towards the underlying base plate so that each cutting edge engages and is treated by a respective sharpening element during that movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.