Surface cleaning apparatus
US4798613A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 2, 1986 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Sep 2, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L7/0042
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A portable vacuum surface cleaning apparatus for taking up and recovering fluids such as liquids and debris from floors or carpets that includes an elongated circuitous or convoluted passageway having an inlet at one end and an outlet at the other end adapted for communication with a vacuum source and communicating with the recovery chamber through a top access opening in a region thereof intermediately between the inlet and outlet, the elongated passageway including a first section extending from the inlet to an elevated region thereof remote from the inlet and above the recovery chamber portion, an intermediate section in communication with the first section in the elevated region thereof and extending therefrom to overlie and communicate with the top opening of the recovery chamber portion, and a third section in communication with the intermediate section in the region thereof above the top opening and extending therefrom toward the outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.