Back to results
US 9,914,515 B1Granted
Barrel extension assemblies and methods for marine propellers
OwnerCharles S. Powersinventor
Life of this patent
Estimating the term…
Abstract
Barrel extension assemblies for structural modification of a propeller barrel on a marine propeller include a ring housing having a ring housing interior, the ring housing adapted to detachably engage an interior surface of the propeller barrel at a trailing barrel edge for structural modification of the propeller barrel. Barrel extension methods for modifying performance of a marine vessel are also disclosed.
Claims18
A barrel extension assembly for structural modification of a propeller barrel on a marine propeller, comprising:
- a ring housing having a ring housing interior, the ring housing adapted to detachably engage the propeller barrel at a trailing barrel edge for structural modification of the propeller barrel, the ring housing having a leading ring edge and a trailing ring edge, the trailing ring edge of the ring housing adapted to detachably engage the propeller barrel at the trailing barrel edge;
- and
- a plurality of ring vanes in the ring housing interior of the ring housing, each of the plurality of ring vanes having a leading vane edge at the leading ring edge of the ring housing.
A barrel extension assembly for structural modification of a propeller barrel on a marine propeller, comprising:
- a ring housing having a ring housing interior, the ring housing adapted to detachably engage the propeller barrel at a trailing barrel edge for structural modification of the propeller barrel;
- wherein the ring housing comprises an outer ring housing wall, an inner ring housing wall and a wall space between the inner ring housing wall and the outer ring housing wall;
- a plurality of ring vanes in the ring housing interior of the ring housing;
- and
- a flap door carried by the outer ring housing wall, the flap door configurable between a first position sealing the wall space and a second position exposing the wall space.
2 more elements
A barrel extension assembly for structural modification of a propeller barrel on a marine propeller, comprising:
- a ring housing having a ring housing interior, the ring housing adapted to detachably engage the propeller barrel at a trailing barrel edge for structural modification of the propeller barrel;
- wherein the ring housing comprises an outer ring housing wall, an inner ring housing wall and a wall space between the inner ring housing wall and the outer ring housing wall;
- a plurality of ring vanes in the ring housing interior of the ring housing;
- and
- wherein each of the plurality of ring vanes comprises a vane base protruding from an interior surface of the inner ring housing wall and a vane body extending from the vane base.
2 more elements
A barrel extension assembly for structural modification of a propeller barrel on a marine propeller, comprising:
- a ring housing having an outer ring housing wall, a ring housing interior in the outer ring housing wall, an inner ring housing wall in the ring housing interior and a wall space between the inner ring housing wall and the outer ring housing wall, the ring housing adapted to detachably engage the propeller barrel at a trailing barrel edge for structural modification of the propeller barrel;
- and
- a plurality of ring vanes protruding from the inner ring housing wall into the ring housing interior, each of the plurality of ring vanes oriented toward and at an acute angle to a central axis of the ring housing.
A method of modifying performance of a marine vessel, comprising:
- structurally modifying a propeller barrel on a marine propeller by attaching a ring housing of a barrel extension assembly to the propeller barrel the ring housing having a ring housing interior, a leading ring edge and a trailing ring edge, the leading ring edge of the ring housing adapted to detachably engage the propeller barrel at a trailing barrel edge and a plurality of ring vanes in the ring housing interior of the ring housing, each of the plurality of ring vanes having a leading vane edge at the leading ring edge of the ring housing;
- and
- operating the marine vessel, whereby the barrel extension assembly modifies performance characteristics of the marine vessel.
A method of modifying performance of a marine vessel, comprising:
- structurally modifying a propeller barrel on a marine propeller by attaching a ring housing of a barrel extension assembly to the propeller barrel;
- and
- operating the marine vessel, whereby the barrel extension assembly modifies performance characteristics of the marine vessel;
- wherein attaching a ring housing of a barrel extension assembly to the propeller barrel comprises attaching a ring housing having a ring housing interior and a plurality of ring vanes in the ring housing interior to the propeller barrel;
- and
- wherein attaching a ring housing to the propeller barrel comprises attaching a ring housing having an outer ring housing wall, an inner ring housing wall and a wall space between the inner ring housing wall and the outer ring housing wall to the propeller barrel, with the plurality of ring vanes extending from the inner ring housing wall.
3 more elements
A method of modifying performance of a marine vessel, comprising:
- structurally modifying a propeller barrel on a marine propeller by attaching a ring housing of a barrel extension assembly to the propeller barrel;
- and
- operating the marine vessel whereby the barrel extension assembly modifies performance characteristics of the marine vessel;
- wherein attaching a ring housing of a barrel extension assembly to the propeller barrel comprises attaching a ring housing having a ring housing interior and a plurality of ring vanes in the ring housing interior to the propeller barrel;
- wherein attaching a ring housing to the propeller barrel comprises attaching a ring housing having an outer ring housing wall, an inner ring housing wall and a wall space between the inner ring housing wall and the outer ring housing wall to the propeller barrel, with the plurality of ring vanes extending from the inner ring housing wall;
- and
- wherein attaching a ring housing to the propeller barrel comprises attaching a ring housing having a flap door carried by the outer ring housing wall, the flap door configurable between a first position sealing the wall space and a second position exposing the wall space.
4 more elements
Dependencies are inferred from the claim text.