Apparatus for lifting one side of a sofa for vacuuming therebeneath
US5441238A · kind A · utility
Inventor
Key dates
| Filing date | May 13, 1994 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | May 13, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S254/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for lifting an object for working therebeneath comprising a pair of parallel side plates having apertures through their upper ends and with a pin extending through the apertures. A base comprised of feet is secured with respect to the lower ends of the side plates. The base also has a forwardly extending foot. A sprocket is secured to the pin for rotation about an axis coincident with the axis of the pin with the sprocket having teeth extending radially therefrom. A chain is positioned over the sprocket with the links of the chain sequentially positionable with the teeth of the sprocket through the chain. A lifting plate is positionable in a lower orientation with a lifting surface. The lifting plate has an upwardly extending attachment member. A pedal has an interior end reciprocable between an elevated location and a lowered location. The pedal has an upwardly extending attachment member secured with respect to the second free end of the chain with a locking component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.