# US 2014/0190384 A1 · Nautical variable steering and propulsion assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0190384 A1
- Document ID: US20140190384A1
- Status: Published application
- Kind: A1
- Application number: 14/344,591
- Filed: 2012-09-27
- Published: 2014-07-10
- Earliest claimed: 2011-09-30
- Assignees: Fb Design S.R.L.
- Applicants: Fb Design S.R.L.
- Inventors: Fabio Buzzi
- Web page: https://patentgrep.com/patent/US20140190384A1

## CPC

- B63H 25/42: Steering or dynamic anchoring by propulsive elements (by jets B63H25/46); Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
- B63B 1/246: {Arrangements of propulsion elements}
- B63H 5/07: of propellers (forming part of outboard units {or Z-drives} B63H20/00)
- B63H 5/125: movably mounted with respect to hull, e.g. adjustable in direction {, e.g. podded azimuthing thrusters}({outboard units or Z-drives B63H20/00; } movably mounted for steering purposes only, {rudders carrying propellers} B63H25/42)
- B63H 25/44: Steering or slowing-down by extensible flaps or the like
- B63H: MARINE PROPULSION OR STEERING (propulsion of air-cushion vehicles B60V1/14; specially adapted for submarines, other than nuclear propulsion, B63G; specially adapted for torpedoes F42B19/00)
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)

## Abstract

A nautical variable-trim (10) steering and propulsion assembly that can be associated to the underside of the bottom (11) of a watercraft and in communication with a motor unit (12) located within said watercraft, said assembly (10) comprising a widened base (13) of resting on said watercraft, a shaft (14) connected on one side to said base (13) and on another side to a supporting torpedo-shaped element (15) defining the axis of rotation (16) of at least one propeller (17) set at least one end of said torpedo-shaped element (15), moreover being provided a directional fin-shaped skeg (18, 18′) associated to said torpedo-shaped element (15) rotating about the axis of said shaft element (14) for controlling the directionality of said watercraft, characterised in that said directional fin-shaped skeg (18,18′) is in addition rotating about an axis parallel to said axis (16) of said at least one propeller (17).

## Claims

### Claim 1

A nautical variable-trim steering and propulsion assembly (10) that can be associated to the underside of the bottom (11) of a watercraft and in communication with a motor unit (12) located within said watercraft, said assembly (10) comprising a widened base (13) for resting on said watercraft, a shaft element (14) connected on one side to said base (13) and on another side to a supporting torpedo-shaped element (15) defining the axis of rotation (16) of at least one propeller (17) set at at least one end of said torpedo-shaped element (15), moreover being provided a directional fin-shaped skeg (18, 18′) associated to said torpedo-shaped element (15), rotating about the axis of said shaft element (14) for controlling the directionality of said watercraft, characterised in that said directional fin-shaped skeg (18,18′) is in addition rotating about an axis parallel to said axis (16) of said at least one propeller (17) defined by said torpedo-shaped element (15), being provided releasable constraining means for constraining at least temporarily said directional fin-shaped skeg (18, 18′) in an inclined position with respect to said torpedo-shaped element (15).

### Claim 2 (depends on 1)

The assembly (10) according to claim 1, characterised in that said means for modifying the orientation of said fin-shaped skeg (18′) with respect to said torpedo-shaped element (15) comprise pin coupling means between said fin-shaped skeg (18′) and said torpedo-shaped element (15).

### Claim 3 (depends on 2)

The assembly (10) according to claim 2, characterised in that said coupling between said fin-shaped skeg (18′) and said torpedo-shaped element (15) comprises a pin element (22) passing in perforated portions (23, 24) of said fin-shaped skeg (18′) and of said torpedo-shaped element (15), respectively.

### Claim 4 (depends on 2)

The assembly (10) according to claim 2, characterised in that it comprises an intermediate element (26) for connection of said fin-shaped skeg (18′) with said torpedo-shaped element (15), said pin coupling comprising a pin element (22) passing in perforated portions (23, 25) of said fin-shaped skeg (18′) and of said intermediate element (26), respectively, said intermediate element (26) being constrained to said torpedo-shaped element (15).

### Claim 5 (depends on 4)

The assembly (10) according to claim 4, characterised in that said intermediate element (26) is removably constrained to said torpedo-shaped element (15).

### Claim 6 (depends on 5)

The assembly (10) according to claim 5, characterised in that said intermediate element (26) comprises a widened base (27) for constraint with a lateral plane portion (20) of said torpedo-shaped element (15), there being provided a plurality of bolt elements (21) for removable connection of said intermediate element (26) with said lateral plane portion (20) of said torpedo-shaped element (15).