Multi-layer mop
US5855204A · kind A · utility
Inventors
Key dates
| Filing date | Jun 18, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Jun 18, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L13/20
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An apparatus is provided for cleaning a surface 5!, the apparatus including a plurality of water absorbing flexible washing layers 10! positioned and secured in a vertical stack 20!. The bottom layer 30! in the stack 20! has the smallest surface area of the plurality of layers 10!, and each successive layer 10! from the bottom to the top of the stack has a successively larger area. A binding means 80! secures the layers 10! together at a central portion 15!, thus forming an integral assembly in which peripheral portions 18! of the layers 10! can move freely. The layers 10! are constructed of a material formulation of approximately 30% viscose material and 70% synthetic fiber in a density of approximately 400 grams per square meter and a thickness of approximately 2.6 mm. Each layer 10! preferably has a plurality of cuts 40! that define fingers 50! on the peripheral portion 18! of the layers 10!.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.