Double propeller for propelling aircraft
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 30, 1987
Grant Date -
N/A
app pub date -
Dec 20, 1984
filing date -
Dec 31, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Double propeller for propelling aircraft, with two coaxially and axially offset propellers that can be driven separately by associated drive mechanisms through a central shaft and a hollow shaft. To reduce noise and maintain safe operation even when one propeller drive breaks down, the propellers rotate in the same direction and can at at least one prescribed angle of rotation to each other be coupled together in such a way that they cannot rotate in relation to each other by means of a clutch that can be disengaged.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully