Boat propeller device

Marine propulsion – Screw propeller – Variable pitch

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

416149, 416166, 416137, B63H 302

Patent

active

042313171

ABSTRACT:
The invention relates to a boat propeller having rotatably journalled blades in its hub to enable shifting between forward and reverse without reversing the direction of rotation. The hub is rotatably journalled on the propeller shaft and contains a transmission between the shaft and the blades. The transmission can be coupled between positions for forward, reverse and neutral. The invention uses the torque of the motor and the reaction moment of the water against the blades to achieve a relative rotation between the shaft and the hub, whereby the transmission turns the blades to one of two stops, which define the positions for forward or reverse.

REFERENCES:
patent: 3275083 (1966-09-01), Allin
patent: 3302725 (1967-02-01), Brimble et al.
patent: 3534703 (1970-10-01), Eckman
patent: 3552348 (1971-01-01), Shima

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Boat propeller device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Boat propeller device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boat propeller device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1639637

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.