Cleaning device for planar surfaces
US6115868A · kind A · utility
Inventor
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L1/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention is a device and method for cleaning substantially planar surfaces such as glass-walled buildings. The device includes a boom and a guide structure pivotally connected to the boom to guide the boom in a forward and a reverse direction along the surface. Preferably, the guide structure is a plurality of skis. The guide structure is covered with mops which contact the surface. The boom is preferably moved in the forward and reverse directions along the surface by a tow line, a plurality of support lines, and a winch. The path of the boom is preferably guided by a pair of pulleys engaging a guide line anchored at the top and bottom of the surface. The method of the present invention includes providing the device of the present invention; rinsing the mops with water, preferably de-ionized water; defining a path along an uncleaned portion of the surface; towing the boom in the forward direction then in the reverse direction across the surface; and repeating the steps until the surface is cleaned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.