Marine propulsion system

Details Marine propulsion system Marine propulsion system

2007-01-02

2007-01-02

Avila, Stephen (Department: 3617)

Marine propulsion

Screw propeller

Variable pitch

Reexamination Certificate

active

10563400

ABSTRACT:
A marine propulsion system comprising a push rod (50) for adjusting the pitch of propeller blades (34). The push rod (50) has a screw-threaded bolt (60) engaged with a nut (78). The nut (78) carries a bevel gear (84) by which the nut (78) can be rotated to cause the bolt (60) and therefore the push rod (50) to move longitudinally. The push rod (50) is connected to a claw with arms couple with pins (170). The pins (170) engage eccentric shafts (174) for unlocking a propeller base (190) so the base (190) can rotate around a transverse axis. The base (190) has an inclined surface which engages with an inclined surface defining an opening in the propeller's hub therefore locking the propeller blade (34) in position. The inclined surfaces are disengaged by rotation of the eccentric shaft (174) thus the propeller blades (34) can be rotated to adjust the pitch and than the inclined surfaces re-engage locking the propeller blade (34) in the pitch adjusted position.

REFERENCES:
patent: 2981338 (1961-04-01), Hindmarch
patent: 3380536 (1968-04-01), Pehrsson et al.
patent: 3912417 (1975-10-01), Herbert
patent: 4422826 (1983-12-01), Casacci et al.
patent: 4643643 (1987-02-01), Otto
patent: 5046973 (1991-09-01), Waldhauser
patent: 5232345 (1993-08-01), Rocco
patent: 5445497 (1995-08-01), Seemar
patent: 5967753 (1999-10-01), Muller
patent: 5997253 (1999-12-01), Feehan
patent: 716906 (1980-02-01), None

Affiliated with

Also associated with

Rating

Marine propulsion system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3792580