# US 10,501,149 B1 · Draft adjustable watercraft

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

- Number: US 10,501,149 B1
- Document ID: US10501149B1
- Status: Granted
- Kind: B1
- Application number: 16/014,637
- Filed: 2018-06-21
- Granted: 2019-12-10
- Earliest claimed: 2017-06-21
- Applicants: Danny R. Hall
- Inventors: Danny R. Hall
- Web page: https://patentgrep.com/patent/US10501149B1

## CPC

- B63B 1/22: with adjustable planing surfaces
- B63B 1/042: {the underpart of which being partly provided with channels or the like, e.g. catamaran shaped}
- B63B 1/20: having more than one planing surface (B63B1/22 takes precedence)
- B63B 2001/201: {divided by longitudinal chines}
- B63B 2001/206: {comprising two hulls, e.g. catamarans}
- 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 watercraft has a hull with a central portion which selectively raises from a lower position to a recessed position within a tunnel of the boat hull with a hydraulically controlled means. The hydraulically controlled means is disposed within the hull and adjacent the tunnel. A motor mount is in mechanical communication with the adjustable portion of the boat hull and raises or lowers correspondingly with the adjustable portion of the boat hull.

## Claims

### Claim 1

A watercraft, comprising:
a hull having an exterior hull channel within a hull bottom and adjacent a watercraft stem; and,
an adjustable hull adjustably secured within said hull channel in mechanical communication with a hull adjustment assembly;
wherein said hull adjustment assembly permits a user to selectively raise or lower said adjustable hull within said hull channel;
wherein said hull adjustment assembly comprises a manual lifting mechanism; and
wherein said manual lifting mechanism comprises a central shaft secured at a central shaft first end to said adjustable hull.

### Claim 2 (depends on 1)

The watercraft of claim 1, wherein said manual lifting mechanism further comprises a handle secured to said central shaft at a central shaft second end.

### Claim 3 (depends on 2)

The watercraft of claim 2, wherein said manual lifting mechanism further comprises a locking mechanism.

### Claim 4 (depends on 3)

The watercraft of claim 3, wherein said locking mechanism is adjustable.

### Claim 5 (depends on 1)

The watercraft of claim 1, wherein when said user moves said manual lifting mechanism in a first direction said adjustable hull is raised.

### Claim 6 (depends on 5)

The watercraft of claim 5, wherein when said user moves said manual lifting mechanism in a second direction said adjustable hull is lowered.

### Claim 7 (depends on 1)

The watercraft of claim 1, wherein said hull channel comprises a polygonal cuboid shape.

### Claim 8 (depends on 1)

The watercraft of claim 1, where said adjustable hull comprises a polygonal cuboid shape.