Walter A Schulz

US Patent:

6994049, Feb 7, 2006

Filed:

May 29, 2003

Appl. No.:

10/447938

Inventors:

Walter A. Schulz - Portsmouth RI, US

Assignee:

Shannon Yachts, LLC - Bristol RI

International Classification:

B63B 1/24

US Classification:

114274

Abstract:

A power boat having an improved hull including concave aft sections, and which hull is capable of operations at a wide range of speeds with low relative horsepower for vessel weight and improved fuel economy is disclosed. In one exemplary embodiment, the boat is a 38 foot power boat having an improved hull which can achieve speeds of up to about 18 knots, with a 200 hp engine and which burns about 10 gals. per hour. The hull preferably includes a negative deadrise angle at the aft sections, the deadrise angle being positive at the bow and transitioning to a negative angle at the aft sections of the hull.

US Patent:

7225752, Jun 5, 2007

Filed:

Feb 6, 2006

Appl. No.:

11/348068

Inventors:

Walter A Schulz - Portsmouth RI, US

Assignee:

Shannon Yachts, LLC - Bristol RI

International Classification:

B63B 1/24

US Classification:

114274

Abstract:

A power boat having an improved hull including concave aft sections, and which hull is capable of operations at a wide range of speeds with low relative horsepower for vessel weight and improved fuel economy is disclosed. In one exemplary embodiment, the boat is a 38 foot power boat having an improved hull which can achieve speeds of up to about 18 knots, with a 200 hp engine and which burns about 10 gals. per hour. The hull preferably includes a negative deadrise angle at the aft sections, the deadrise angle being positive at the bow and transitioning to a negative angle at the aft sections of the hull.

US Patent:

44494688, May 22, 1984

Filed:

May 19, 1983

Appl. No.:

6/495960

Inventors:

Walter A. Schulz - Portsmouth RI
John H. Procter - East Providence RI

Assignee:

Schulz Marine Systems, Inc. - Bristol RI

International Classification:

B63H 910

US Classification:

114104

Abstract:

An adjustable roller furling spar includes an elongated base member which is securable on a sailboat and an adjustable periphery assembly which is attached to the base member and coextends a distance therewith. The periphery assembly is adjustable to define an effective winding cross-section of the spar which is variable along the longitudinal extent thereof and which is operable for windingly receiving a sail on the spar. By properly adjusting the periphery assembly, it is operable to compensate for irregular stretch in older sails when the spar is used for reefing so that even a badly stretched sail can be maintained in a substantially flat disposition.

US Patent:

63250098, Dec 4, 2001

Filed:

May 31, 2000

Appl. No.:

9/583262

Inventors:

Walter A. Schulz - Portsmouth RI
George J. Carter - Gloucester MA

Assignee:

Shoalsailer, LLC - Bristol RI

International Classification:

B63B 104
B63B 338

US Classification:

114 561

Abstract:

A sailboat having a novel hull shape, a fixed, shallow keel, dual rudders, and retractable, shallow dagger boards for sailing in shallow or shoal water is provided. The combination of features allows the boat to achieve performance sailing at all points of wind, and in both deep and shallow water. The hull preferably has a hydrodynamic shape which provides lift and lateral resistance to the hull when sailing. The keel is preferably shallow so that the boat may be sailed in shallow water and even beached. The draft of the keel is preferably related to the length of the hull measured along the waterline. In a preferred embodiment, there is 1 inch of draft for every 1 foot of waterline. The boat may also preferably include a set of retractable dagger boards located on opposite sides of the keel. A dagger board may be extended on the leeward side of the boat when the wind exceeds about 15 knots, in order to help prevent side slippage or leeway.

US Patent:

56365853, Jun 10, 1997

Filed:

Oct 20, 1995

Appl. No.:

8/546378

Inventors:

Walter A. Schulz - Portsmouth RI

International Classification:

B63B 4314

US Classification:

114123

Abstract:

A hydrofoil member for a sailboat of the type having a single hull with no fixed ballast includes an elongate arm portion which extends laterally outwardly away from the sailboat along a generally horizontal plane when in use. The arm portion has an upwardly-facing surface, a downwardly-facing surface, and an outer end portion which flares upwardly relative to the horizontal plane. The hydrofoil member further comprises a pontoon element mounted on the downwardly-facing surface of the arm portion at the outer end portion. The pontoon element is adapted to engage and displace water when in use for stabilizing the sailboat. The arm has is capable of being retracted to stow the hydrofoil member in a parallel position against the hull when not in use.

US Patent:

20170291592, Oct 12, 2017

Filed:

Jun 23, 2017

Appl. No.:

15/632096

Inventors:

Walter Schulz - New Bedford MA, US

International Classification:

B60V 1/22
B60V 1/14
B63B 1/26
B63B 1/32
B63H 7/02
B63B 1/24

Abstract:

A three stage watercraft for operation in the water as a traditional boat at low speeds in stage one, for operation on the water's surface at mid-range speeds at stage two, and for traveling in ground effect at higher range speeds is disclosed. The three stage craft includes a hydro-wing at least a single hydrofoil to aid with lift from stage one to stage two, and a pair of outboard floats or hydro-floats supported by the hydro-wing which are also designed to aid with lift from stage one to stage two. A gyration rotor to aid with lift from stage one to stage two may also be provided as may a pair of pivotally mounted air propellers which aid in lift and propulsion by varying their operational angle relative to the plane of travel of the craft.

US Patent:

20160280332, Sep 29, 2016

Filed:

Mar 24, 2016

Appl. No.:

15/080509

Inventors:

Walter Schulz - New Bedford MA, US

International Classification:

B63B 1/24
B60V 3/06
B63H 25/38
B60V 1/08
B63B 1/26
B63B 1/32

Abstract:

A three stage watercraft for operation in the water as a traditional boat at low speeds in stage one, for operation on the water's surface at mid-range speeds at stage two, and for traveling in ground effect at higher range speeds is disclosed. The three stage craft includes a hydro-wing either at least a single hydrofoil or gyration rotor to aid with lift from stage one to stage two, and a pair of outboard floats or hydro-floats supported by the hydro-wing which are also designed to aid with lift from stage one to stage two.