Lance tip construction
US4073026A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1976 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Jul 9, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28G1/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A tube cleaning lance tip construction including a body portion, a first bore extending longitudinally of the body portion, a plurality of second bores extending between the first bore and the outer surface of the body portion for causing liquid to be ejected with a net lateral force component to bias the body portion against the inside of the tube in which the lance tip is located, and first and second rows of axially spaced blades on the opposite side of the body portion from the second bores, said blades having axial and radial cutting edges for removing incrustations from the tube as the lance tip rotates and advances axially through the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.