Safety propeller

Details Safety propeller Safety propeller

2007-02-06

2007-02-06

Avila, Stephen (Department: 3617)

Marine propulsion

Screw propeller

Propeller guard

C416S24700A

Reexamination Certificate

active

11417704

ABSTRACT:
A safety propeller for a boat motor includes an annular collar having a front opening, a rear opening and a continuous peripheral wall. A plurality of angled, horizontal slits are circumferentially positioned about the peripheral wall to allow water to pass through the collar. Both the front opening and rear opening each include a plurality of guard blades radially extending from a centrally disposed hub. Between the front and rear guard blades is a main propeller likewise including a plurality of blades radially extending from a centrally disposed hub. The collar, guard blades, main propeller, shaft and hubs are integrally connected to form a unitary structure. Accordingly, when the device is operably connected to a boat motor drive means, the guard blades and main propeller rotate in unison to propel a boat through water. The guard blades are positioned at a discrete angle and pitch so as to project animals, humans and objects away from the device.

REFERENCES:
patent: 3261544 (1966-07-01), Guichard
patent: 3574477 (1971-04-01), Dolf et al.
patent: 4070984 (1978-01-01), Kappas
patent: 4182118 (1980-01-01), Chronic
patent: 4427393 (1984-01-01), May
patent: 4680017 (1987-07-01), Eller
patent: 4767269 (1988-08-01), Brandt
patent: 6244818 (2001-06-01), Chang
patent: 2003/0114052 (2003-06-01), Schultz et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3863730