Suction attachment for vacuum cleaner
US4139923A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1977 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Mar 22, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0653
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A suction attachment for a vacuum cleaner has a housing component and a brush component which is accommodated within the housing component. Two mounting members mount the brush component in the housing component for displacement between a retracted position in which the brushes of the brush component are received within the housing component, and an extended position in which the brushes extend to the exterior of the housing component and into contact with a surface to be vacuum cleaned. The mounting components are interconnected by connecting members for synchronous pivoting about spaced pivot axes. Each mounting member is pivotally mounted on the brush component and has a support portion which engages the housing component. One of the mounting members has an actuating portion which is acted upon by an actuating element for pivoting the mounting members into positions corresponding to the extended position of the brush component against a biasing force, and a releasing portion acted upon by a flexible portion of the actuating element for releasing the mounting members and the brush component for displacement of the latter toward the retracted position. The other mounting member ma…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.