Single vertical motion feedtube protector and actuator for a food processor
US4512522A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Oct 17, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J43/0788
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A feedtube protector and actuator for a food processor having a cover with a feedtube of relatively large cross-sectional area, sometimes called an "expanded" feedtube. The cover remains secured in its normal operating position on the bowl during loading of food items into the feedtube. A single vertical downward movement of the protector apparatus onto the feedtube following loading causes the actuator to depress the movable control rod for rendering the motor drive operable. Conversely, a single vertical upward movement of the protector apparatus off from the feedtube fully exposes the feed passageway while simultaneously releasing the movable control rod for rendering the motor drive inoperable. The upper end of the control rod is covered by a protective cap. In one embodiment, the actuator converts downward or upward motion of the protector apparatus into lateral extension or retraction, respectively, of a tongue-shaped cam member contacting the control rod through apertures in the sidewalls of the protective cap for respectively depressing or releasing the control rod. In another embodiment a pivoted arm mounted on the cover enters into such apertures to contact the upper end …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.