Floor treating machine with squeegee
US4293971A · kind A · utility
40Cited by
13References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1979 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | Jun 19, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4061
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The specification discloses a floor scrubber wherein the squeegee is connected to the machine by a coil spring. The squeegee is free of direct rigid connection to the machine such that it can shift readily from side to side through the action of the spring. The squeegee is biased to a raised position by a second spring and can be forced downwardly into engagement with the floor through a unique pneumatic cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.