Lance tip construction
US4058870A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1976 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Jul 9, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28G3/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A tube cleaning lance tip construction for rotation within a tube comprising a body portion, a bore arrangement in the body portion for causing liquid to be ejected with a lateral component creating a reactive force for biasing the body portion toward the inside of the tube, a blade on the opposite side of the body portion from the bore arrangement for removing incrustations from the inside of the tube, the bore arrangement being positioned relative to the longitudinal axis of the body portion to cause the reactive force to be in the direction of rotation of the body portion, and stabilizing blades on the body portion for limiting layover of the blade and for tending to maintain the axis of the lance tip parallel to the axis of the tube and for aiding in the removal of incrustations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.