Patent EP0115005A1 successfully refreshed from Google Patents.
EP0115005A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Axial fan with blades adjusting themselves to the direction of rotation
Assignee: Siemens AG
•
Filing: 1983-12-16
•
Granted: —
•
Expires: 2003-12-16
Abstract
Abstract The invention relates to an axial fan with blades that automatically adjust to the direction of rotation. The fan blades are mounted with freedom to swivel on the fan wheel and are limited in their swiveling motion by stops which are provided on the fan wheel. In order to reduce the manufacturing cost of such an axial fan, spokes, to which the fan blades are fastened by means of film hinges are mounted on the fan wheel. The fan wheel is made from a single piece of plastic.
Inventors
- 👤 Manfred Dipl.-Ing. Heerlein
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 10:01
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/34; F04D29/36; F04D29/362; F04D29/366
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.