Vegetable slicer
US4134205A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 11, 1977 |
| Grant date | Jan 16, 1979 |
| Priority date | — |
| Expiry date | Nov 11, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26D3/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A verticle spindle carrying cutting blades at its bottom end and a knob at its top is rotatably and slidably journaled in a neck of a housing positionable around vegetable or fruit to be sectioned. Rigid with the neck and coaxially surrounding the spindle are oppositely oriented upper and lower sets of sawteeth whose sloping flanks coact with respective groups of camming formations rigid with the spindle and disposed at the upper and lower ends thereof. These camming formations engage the associated sawteeth during the final phases of a cutting stroke and a return stroke of the spindle with a relative offset of a fraction of a pitch to impart to the spindle, knob and blades a stepped rotary unidirectional motion. The upper sawtooth flanks are more steeply inclined than the lower ones whereby the angle of rotation during a manual downstroke is less than that occurring during an upstroke brought about by the pressure of a restoring spring inserted between the knob and the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.