Vacuum spray head
US4521935A · kind A · utility
15Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1983 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Aug 29, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/103
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A combination vacuum and spray head for a pressurized cleaning apparatus adapted especially for use upon open grating. The structure includes a vacuum head housing, a shielded spray head that provides a plurality of downwardly, diagonally directed spray nozzles for directing a stream of fluid against the opposite sides of parallelly extending grate slats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.