Continuously slitted roll-on tube shield
US5582212A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Nov 8, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L58/1063
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shield that is normally positioned or wrapped around a boiler tube when such tube is exposed to extreme operating conditions. This shield consists of an elongated strip of thin material that is formed as a helix. This strip also incorporates a means for spacing this strip from the tube so as to create a gap between the tube and the shield. Generally the shield is secured to the tube by spot or button welding only the longitudinal end regions of the strip to the tube. By thus wrapping and securing one or more such shields to the tube, the tube is protected while still permitting both it and the shield(s) to expand and contract as needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.