Cleaning apparatus for sewer pipes and the like
US4073302A · kind A · utility
Inventor
Key dates
| Filing date | Jan 18, 1977 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Jan 18, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/0495
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus for cleaning sewer and other pipes of accumulated debris has a nozzle on one end of a tubular body and a coupling on the opposite end of the body which enables the apparatus to be connected to a flexible hose leading to a source of pressurized water. A carriage assembly supports the body coaxially within the pipe and this assembly has wheels for primary engagement with the interior of the pipe and also longitudinally extending skids intended to contact the pipe interior should the wheels encounter an obstruction. The carriage assembly is radially adjustable and the nozzle has outwardly and rearwardly directed jets which discharge cleaning and propelling streams of high-pressure water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.