Scraper blade and method for scraped-surface heat exchanger
US7302999B2 · kind B2 · utility
2Cited by
13References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Jul 16, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F19/008
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A curved scraper blade for a scraped-surface heat exchanger pivots about an axis off the centerline of the blade. The profile of the blade is chosen to provide a low initial scrape angle and to change gradually if at all as the blade wears away in service. The off-center pivot placement allows scraped material to flow between the blade and the drive shaft. Several materials are suitable for the blade, including PEEK thermoplastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.