Duct cleaning apparatus
US3994310A · kind A · utility
29Cited by
5References
5Claims
0Family size
Inventor
Key dates
| Filing date | Nov 11, 1975 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | Nov 11, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/0433
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for cleaning debris from ducts. The apparatus has a pair of rotatable jets with one of the jets having a zero orifice and the other jet having a spread orifice. A means supports the jets and fluid is supplied to them. Fluid leaving the jet having the zero orifice impinges the debris and cuts it from the duct and fluid leaving the other jet having the spread orifice produces a flushing action removing the debris after it has been cut from the duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.